阅读说明：本技术 一种dcs零坡度虹吸排水收集系统 (DCS zero-gradient siphon drainage collection system ) 是由 杨自宁 李松艳 陈红 梁翠 于 2021-08-03 设计创作，主要内容包括：本发明涉及一种DCS零坡度虹吸排水收集系统,其包括排水板、排水管、收集池、土工布和透气结构；排水板表面分布有若干支撑凸台,若干个排水板相互拼接形成排水阵列；排水管水平方向的侧壁上开设有若干进水口,相邻的排水管相互连通；矩形排水阵列设置在各个排水管形成的网格内,排水管与相邻的排水板之间相互抵触；排水管相互连通形成的管路与收集池连通；土工布铺设在排水板及排水管的上侧；排水管上设置有透气结构。本发明具有通过设置排水管将排水板上的渗透水进行汇聚和引导,并集中向收集池进行排放,实现了渗透水的回收,系统整体重量轻、排水速度快,并且施工步骤更简单明了,施工周期更短的效果。(The invention relates to a DCS zero-gradient siphon drainage collection system which comprises a drainage plate, a drainage pipe, a collection pool, geotextile and a ventilation structure, wherein the drainage plate is arranged on the drainage pipe; a plurality of supporting bosses are distributed on the surface of the drainage plate, and a plurality of drainage plates are mutually spliced to form a drainage array; a plurality of water inlets are formed in the side wall of the water drainage pipe in the horizontal direction, and the adjacent water drainage pipes are communicated with each other; the rectangular drainage array is arranged in a grid formed by the drainage pipes, and the drainage pipes are mutually abutted with the adjacent drainage plates; the pipeline formed by the mutual communication of the drainage pipes is communicated with the collecting tank; the geotextile is laid on the upper sides of the drainage plates and the drainage pipes; the drain pipe is provided with a ventilation structure. The invention has the advantages that the permeable water on the drainage plate is gathered and guided by arranging the drainage pipe and is intensively discharged to the collection pool, so that the permeable water is recovered, the whole system has light weight and high drainage speed, the construction steps are simpler and clearer, and the construction period is shorter.)

1. The utility model provides a zero slope siphon drainage collecting system of DCS which characterized in that: comprises a drain board (11), a drain pipe (2), a collecting tank (3), geotextile and a ventilation structure (4);

a plurality of supporting bosses (111) are distributed on the surface of the drainage plate (11) in an array manner, a plurality of drainage plates (11) are spliced with one another to form a rectangular drainage array (1), and a plurality of rectangular drainage arrays (1) are arranged on the construction surface;

a plurality of water inlets (21) are formed in the side wall of the drainage pipe (2) in the horizontal direction, the drainage pipes (2) are distributed on the construction surface in a grid shape, and the adjacent drainage pipes (2) are communicated with each other;

the rectangular drainage array (1) is arranged in a grid formed by the drainage pipes (2), and the drainage pipes (2) are mutually butted with the adjacent drainage plates (11);

the pipelines formed by the mutual communication of the drainage pipes (2) are communicated with the collecting tank (3);

the geotextile is laid on the upper sides of the drainage plate (11) and the drainage pipe (2);

ventilative structure (4) and drain pipe (2) intercommunication, ventilative structure (4) are used for keeping drain pipe (2) and atmosphere intercommunication after accomplishing system construction and accomplishing vegetation and plant.

2. A DCS zero-gradient siphon drainage collection system as claimed in claim 1, wherein: the height of collecting pit (3) is less than the construction surface, the intercommunication has siphon reducing pipe (5) that extend along vertical direction on collecting pit (3), siphon reducing pipe (5) are divided into first half (51) and lower half (52) that communicate each other, the pipeline internal diameter of first half (51) is greater than the pipeline internal diameter of lower half (52), lower half (52) and collecting pit (3) intercommunication and first half (51) and drain pipe (2) intercommunication of siphon reducing pipe (5) have realized the intercommunication of the pipeline that collecting pit (3) and drain pipe (2) are constituteed.

3. A DCS zero-gradient siphon drainage collection system as claimed in claim 2, wherein: be equipped with inspection shaft (31) between collecting pit (3) and siphon reducing pipe (5), inspection shaft (31) top and siphon reducing pipe (5) intercommunication, the bottom and collecting pit (3) the intercommunication of inspection shaft (31).

4. A DCS zero-gradient siphon drainage collection system as claimed in claim 1, wherein: the support bosses (111) comprise a plurality of types with different heights, the support bosses (111) with different heights are arranged on the drainage plate (11) in a staggered mode, and at least one support boss (111) with different height is arranged on the periphery of each support boss (111).

5. A DCS zero slope siphon drainage collection system according to claim 4, characterized in that: drainage bar (11) one side has set firmly buckle joint board (112), buckle joint board (112) are connected with drainage bar (11) top side, be equipped with a plurality of lock joint boss (113) on buckle joint board (112), drainage bar (11) are equipped with a plurality of connection boss (114) with one side that buckle joint board (112) carried on the back mutually, the position and lock joint boss (113) of connecting boss (114) are corresponding, lock joint boss (113) are the hollow boss of bottom open-ended, the inner chamber and the corresponding connection boss (114) looks adaptation of lock joint boss (113).

6. A DCS zero slope siphon drainage collection system according to claim 4, characterized in that: support boss (111) and be the terrace with edge type, be equipped with stiffening rib (1111) on the circumference lateral wall of support boss (111), be provided with rib groove (1112) on stiffening rib (1111).

7. A DCS zero-gradient siphon drainage collection system as claimed in claim 1, wherein: the outline of the cross section of the drain pipe (2) is square, and the bottom wall of the water inlet (21) is flush with the bottom wall of the drain pipe (2).

8. A DCS zero slope siphon drain collection system according to claim 7, characterised in that: the left side and the right side of the top of the inner side of the drain pipe (2) are provided with reinforcing structures (22), each reinforcing structure (22) comprises two first reinforcing rib plates (221) and one second reinforcing rib plate (222), one of the first reinforcing rib plates (221) is connected with the inner top wall of the pipe body, the other one of the first reinforcing rib plates (221) is fixedly connected with the inner side wall of the pipe body, the two first reinforcing rib plates (221) are connected with the side wall of the inner wall of the pipe body far away from one side, the second reinforcing rib plates (222) are fixedly connected with the connecting parts of the two first reinforcing rib plates (221), and the second reinforcing rib plates (222) are connected with the top angle of the inner wall of the pipe body.

9. A DCS zero-gradient siphon drainage collection system as claimed in claim 1, wherein: still include four-way connection (6), four-way connection (6) are the cross, four-way connection (6) are inside to be equipped with intercommunication cavity (61), intercommunication groove (62), each have all been seted up to four criss-cross tip of four-way connection (6) intercommunication groove (62) all communicate with intercommunication cavity (61), each intercommunication groove (62) all with drain pipe (2) tip outline looks adaptation that need be connected, each drain pipe (2) are connected and are realized criss-cross intercommunication through intercommunication groove (62) with four-way connection (6), and then form latticed distribution.

10. A DCS zero slope siphon drain collection system according to claim 9, characterised in that: connecting holes (63) are formed in the top of a communicating cavity (61) of part of the four-way joint (6), the ventilating structure (4) is a ventilating pipe (41), and the ventilating pipe (41) is arranged in the vertical direction and is fixedly connected with the connecting holes (63) in a sealing mode.

Technical Field

The invention relates to the technical field of sponge cities and urban greening, in particular to a DCS zero-gradient siphon drainage collection system.

Background

The sponge city is a city which can be like a sponge and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can also be called as a water elasticity city. In the urban greening construction process, the soil layer is artificially laid and the vegetation is planted at the tops of facilities such as buildings, underground garages and the like, the method is an important means for urban greening construction, the urban vegetation coverage rate can be improved, air is purified and the environment is beautified, the artificial soil layer can absorb, seep and filter rainwater, the seepage water under the artificial soil layer is collected and stored, and the concept of a sponge city is met.

Among the correlation technique, in the construction process of laying the soil layer and planting the vegetation at the building top manual work, the planting system need set gradually the screed-coat, the waterproof layer, the isolation layer, the two-way reinforcing bar protective layer of fine aggregate concrete, look for the slope layer, the drainage blanket, filter layer and planting soil layer, the filter layer is laid in planting soil layer below, generally lay by crossing filtering sand and establish and form, adopt geotechnological cloth to filter among the part technique also, and the drainage blanket mainly lays through rubble and pottery and forms, carry out coarse filtration in the moisture that oozes in to soil, and guide moisture to drain away from planting soil layer below, reduce the water accumulation in planting soil layer, lead to the rotten condition of vegetation root system.

Aiming at the related technologies, the inventor thinks that the planting system is heavy, the drainage speed is slow, large load is caused to the top of the building, and meanwhile, the construction steps are complicated and the construction period is long.

Disclosure of Invention

In view of the above drawbacks of the prior art, an object of the present invention is to provide a DCS zero-gradient siphon drainage collection system, in which a geotextile is arranged to cover a drainage plate, a support protrusion on the drainage plate supports the geotextile and forms a gap between the geotextile and the drainage plate for the flow of the seepage water, the drainage pipe is arranged to collect and guide the seepage water on the drainage plate and concentrate the seepage water to a collection tank for drainage, so as to recover the seepage water, the system has a light overall weight and a high drainage speed, and the construction steps are simpler and clearer, and the construction period is shorter.

In order to achieve the above objects and other related objects, the present invention provides a DCS zero-gradient siphon drainage collection system, comprising a drainage plate, a drainage pipe, a collection tank, geotextile and a ventilation structure; a plurality of supporting bosses are distributed on the surface of the drainage plate in an array manner, a plurality of drainage plates are spliced with one another to form a rectangular drainage array, and a plurality of rectangular drainage arrays are arranged on the construction surface; a plurality of water inlets are formed in the side wall of the drainage pipe in the horizontal direction, the drainage pipes are distributed on the construction surface in a grid shape, and the adjacent drainage pipes are communicated with each other; the rectangular drainage array is arranged in a grid formed by each drainage pipe, and the drainage pipes are mutually abutted with adjacent drainage plates; the pipeline formed by the mutual communication of the drainage pipes is communicated with the collecting tank; the geotextile is laid on the upper sides of the drainage plate and the drainage pipe; the ventilation structure is communicated with the drain pipe and is used for keeping the drain pipe communicated with the atmosphere after system construction and vegetation planting are completed.

Further, the collecting pit highly is less than the construction surface, the intercommunication has the siphon reducing pipe that extends along vertical direction on the collecting pit, siphon reducing pipe is divided into first one and the lower half that communicate each other, first one's pipe internal diameter is greater than the pipe internal diameter of lower half, siphon reducing pipe's lower half and collecting pit intercommunication and first one and drain pipe intercommunication to the intercommunication of the pipeline that collecting pit and drain pipe are constituteed has been realized.

Further, be equipped with the inspection shaft between collecting pit and the siphon reducing pipe, inspection shaft top and siphon reducing pipe intercommunication, the bottom and the collecting pit intercommunication of inspection shaft.

Furthermore, a plurality of support boss includes a plurality of kinds of difference in height, and various height differences support the boss crisscross setting on the drain bar, every support boss's circumference all has at least one with self highly different support boss.

Further, drain bar one side has set firmly the buckle connection board, the buckle connection board is connected with drain bar top side, be equipped with a plurality of lock joint bosss on the buckle connection board, one side that drain bar and buckle connection board carried on the back mutually is equipped with a plurality of connection bosss, the position of connecting the boss is corresponding with the lock joint boss, the lock joint boss is the hollow boss of bottom open-ended, the inner chamber and the corresponding connection boss looks adaptation of lock joint boss.

Furthermore, the support boss is in a prismoid shape, reinforcing ribs are arranged on the circumferential side wall of the support boss, and rib grooves are formed in the reinforcing ribs.

Furthermore, the outer contour of the cross section of the drain pipe is square, and the bottom wall of the water inlet is flush with the inner bottom wall of the drain pipe.

Furthermore, the left side and the right side of the top of the inner side of the drain pipe are provided with reinforcing structures, each reinforcing structure comprises two first reinforcing rib plates and one second reinforcing rib plate, one of the first reinforcing rib plates is connected with the inner top wall of the pipe body, the other one of the first reinforcing rib plates is fixedly connected with the inner side wall of the pipe body, the two first reinforcing rib plates are connected with one side wall of the pipe body far away from the inner wall of the pipe body, the second reinforcing rib plates are fixedly connected with the connecting parts of the two first reinforcing rib plates, and the second reinforcing rib plates are connected with the top angle of the inner wall of the pipe body.

Further, still include the cross joint, the cross joint includes the cross joint, the cross joint is the cross, the inside intercommunication cavity that is equipped with of cross joint, the intercommunication groove has all been seted up to four criss-cross tip of cross joint, each the intercommunication groove all communicates with the intercommunication cavity, each the intercommunication groove all with the drain pipe tip outline looks adaptation that needs to be connected, each the drain pipe realizes criss-cross intercommunication through being connected with the intercommunication groove of cross joint, and then forms latticed distribution.

Furthermore, the top of the communicating cavity of part of the four-way joint is provided with a connecting hole, the ventilating structure is a ventilating pipe, and the ventilating pipe is arranged along the vertical direction and is fixedly connected with the connecting hole in a sealing manner.

As described above, the present invention has at least the following advantageous effects:

1. and laying a drainage plate and a drainage pipe on the construction surface, constructing a drainage structure and a drainage path, and connecting the drainage path formed by the drainage pipe to a collection pool, thereby realizing the recovery of the seepage water. The geotextile covers on the drainage structures constructed by the drainage plates and the drainage pipes, and the geotextile is supported by the support bosses distributed on the drainage plates, so that a gap is formed between the surface of the drainage plate and the geotextile. The soil layer is laid on the geotextile, and the plants are planted on the artificial soil layer. During rainwater weather, unnecessary moisture infiltrates down in the soil, and the infiltration water gets into between the space of drain bar and geotechnological cloth through geotechnological cloth to flow to the water inlet of drain pipe lateral wall, the infiltration water assembles to guide to the collecting pit by the drain pipe is concentrated in the drain pipe back, realizes the recovery of infiltration water. The drainage structure constructed by the drainage plates replaces a drainage layer, an isolation layer, a protective layer and a slope finding layer in the related technology, and geotextile is used as a filter layer, so that the load of the system on the top of the building is greatly reduced. After water on a soil layer permeates into a gap between the drainage plate and the geotextile in the drainage process, water pressure caused by water accumulated in the soil layer is transferred to the drainage plate, meanwhile, the drainage pipe is communicated with the atmosphere through the ventilation structure, so that the drainage pipe is in a low-pressure or zero-pressure state, the adjustment of the function of a siphon principle is met, the flow speed of the water in the drainage pipe is increased through the siphon effect, the drainage speed is greatly increased, the drainage efficiency can meet the drainage requirement of a system in heavy rainfall weather, and the construction steps are simpler and more convenient, so that the construction period is shortened;

2. the pipe composed of the drain pipes is communicated with the collecting tank through the siphon reducer pipe, and because the siphon reducer pipe is vertically arranged, when the seepage water in the pipe is gathered to the siphon reducer pipe and enters the upper half part of the siphon reducer pipe, and the seepage water enters the lower half part from the upper half part, because the inner diameter of the pipe is reduced, the bubbles in the seepage water flow are all stayed in the upper half part, so that the lower half part is full of the seepage water, the siphon effect is generated, and the conveying speed of the seepage water is accelerated;

3. by arranging the inspection well and on the inspection well, workers can detect the drainage working condition of the system through the inspection well;

4. because the supporting bosses are arranged in a staggered manner, the part of the geotextile laid above the supporting bosses between the supporting bosses is inclined at a certain angle, and the originally vertically downward gravity load applied to the geotextile by the backfilled soil is decomposed, so that the collapse and depression degree of the geotextile between the supporting bosses is reduced, the geotextile is supported by the higher supporting bosses for the first time, the lower concave part of the geotextile is supported by the lower supporting bosses for the second time, the supporting interval of the supporting bosses for the geotextile is reduced, the collapse possibility of the geotextile is further reduced, and a sufficient drainage space is reserved;

5. the fastening plates are overlapped on the plate bodies of the adjacent drainage plates, the fastening bosses are sleeved outside the connecting bosses at the edges of the adjacent drainage plates to facilitate positioning, and reliable support is provided for the geotextile at the edges of the drainage plates;

6. the supporting boss is arranged to be in a prismatic table shape, the plurality of reinforcing ribs are arranged on the circumferential side wall of the supporting boss, and rib grooves are formed in the reinforcing ribs, so that a plurality of edge structures extending obliquely in the vertical direction are formed on the whole supporting boss, the capability of the supporting boss for bearing loads in the vertical direction is greatly improved, the possibility of deformation of the supporting boss is reduced, and the service life of the drainage plate is prolonged;

7. the outer contour of the drainage plate is square, so that the drainage plate is tightly abutted and hermetically connected with the side wall of the drainage plate, and the bottom wall of the water inlet is flush with the inner bottom wall of the drainage pipe, so that the flow of the permeated water into the pipe is smoother;

8. two spaces with triangular cross sections are formed by the mutual connection of two first reinforcing rib plates and one second reinforcing rib plate, and the structural strength of the pipe body is improved by utilizing a triangular stable structure;

9. the cross-shaped four-way joint is provided with the communicating grooves which respectively face to four directions, and the drain pipes from the four directions are connected, so that the drain pipes can be distributed in a latticed manner through the pipeline joint, and the ratio of the area of the drain plate to the area of the water inlet is reduced due to the latticed arrangement of the drain pipes, so that the speed of gathering the seepage water on the drain plate into the drain pipes is increased;

10. the connecting hole is used for connecting vent pipe, and vent pipe is vertical upwards to extend to make the air intercommunication of drain pipe and soil top, and then keep drainage pipe's low pressure or zero pressure state, in order to form the siphon effect.

Drawings

Fig. 1 is a schematic diagram for showing the overall structure of the system in this embodiment.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of the present embodiment for showing the structure of the drain board.

Fig. 4 is a schematic view illustrating the structure of the drain board and the fastening board according to this embodiment.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a schematic structural diagram for embodying the support boss in the present embodiment.

Fig. 7 is a schematic structural diagram for embodying the drain pipe in this embodiment.

Fig. 8 is a schematic structural view for showing a reinforcing structure in the drain pipe in this embodiment.

Fig. 9 is a schematic diagram showing the connection relationship between the four-way joint and the vent pipe and the drain pipe in this embodiment.

Fig. 10 is a schematic diagram for showing the detailed structure of the four-way joint in this embodiment.

Fig. 11 is a schematic cross-sectional view illustrating an internal structure of the four-way joint according to this embodiment.

Description of reference numerals:

1. a drainage array; 11. a drain plate; 111. supporting the boss; 1111. reinforcing ribs; 1112. a rib groove; 112. a buckle plate; 113. fastening the lug bosses; 114. connecting the bosses; 2. a drain pipe; 21. a water inlet; 22. a reinforcing structure; 221. a first reinforcing rib plate; 222. a second reinforcing rib plate; 3. a collection tank; 31. an inspection well; 4. a breathable structure; 41. a breather pipe; 5. a siphon reducer; 51. an upper half part; 52. a lower half; 6. a four-way joint; 61. communicating the chambers; 62. a communicating groove; 63. connecting holes; 64. a support pillar; 65. a limiting column.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Referring to fig. 1 to 3, the present invention provides a DCS zero-gradient siphon drainage collection system, which includes a drainage plate 11, a drainage pipe 2, a collection tank 3, a geotextile (not shown) and a ventilation structure 4. The plate body of the drainage plate 11 is rectangular, and a plurality of supporting convex ribs are arranged on the plate body of the drainage plate 11 in an array manner. The drainage plate 11 with a square plate body is selected in the embodiment, so that the arrangement size and the calculated area of the drainage plate 11 are convenient to control. A plurality of drainage plates 11 are spliced with one another to form a rectangular drainage array 1, and adjacent drainage plates 11 of the same drainage array 1 are sealed and bonded through sealing glue. The drainage arrays 1 are arranged on a construction surface of a building roof, and gaps for arranging the drainage pipes 2 are left between the drainage arrays 1. A plurality of water inlets 21 have been seted up on drain pipe 2's the horizontal direction lateral wall, and each drain pipe 2 is latticed through four way connection 6's connection and arranges on the construction surface at building top to ventilative structure 4 sets up on four way connection 6, thereby makes drain pipe 2 and atmospheric environment intercommunication, and then the atmospheric pressure in the balanced drain pipe 2. The outline of drain pipe 2 is the rectangle to can carry out mutual fixed connection and sealed through two-sided self-adhesion waterproofing membrane between adjacent drain plate 11 and the drain pipe 2 with the inseparable conflict in drain plate 11 edge. Collecting pit 3 sets up in the position that is less than the construction surface, and drain pipe 2 is 2 ways of the distribution of grid shape formation and collecting pit 3 intercommunication. The geotextile is laid on the drain board 11 and the drain pipe 2, and the geotextile is supported by each supporting convex edge on the drain board 11, so that a gap for the flow of the seepage water is formed between the surface of the drain board 11 and the geotextile. The drainage structures that constitute through the drain bar 11 of light and drain pipe 2 have replaced waterproof layer, isolation layer, protective layer and drainage blanket, have replaced the filter layer through geotechnological cloth to reduced system's gross weight by a wide margin, reduced the load to the building top, and simplified the construction procedure, shortened the time limit for a project, provided abundant drainage space that holds through the space between drain bar 11 and the geotechnological cloth in addition, therefore promoted the drainage rate of system.

Referring to fig. 3 to 6, each support boss 111 on the drainage plate 11 includes several kinds with different heights, and in the present embodiment, two kinds of large bosses and small bosses are selected, wherein the shape and size of the large bosses are the same as those of the small bosses after being enlarged in equal proportion. On the drain board 11, among the support bosses 111 distributed in an array, the large bosses and the small bosses of each row of support bosses 111 are alternately arranged, and the large bosses and the small bosses of each column are alternately arranged, so that the adjacent support bosses 111 of each row and column on the drain board 11 are different in height from each other. When the geotextile is laid on the drainage plate 11, the part of the geotextile between the support bosses 111 inclines at a certain angle, and the original vertical downward gravity load applied to the geotextile by the soil layer is decomposed, so that the depth of collapse and depression of the geotextile between the support bosses 111 is reduced, and a sufficient gap is kept between the geotextile and the drainage plate 11.

The support bosses 111 are all hollow bosses with open bottom ends, so that the overall weight of the drain board 11 is reduced. Support boss 111 and be the terrace with edge shape, and all set firmly the stiffening rib 1111 on every circumference lateral wall that supports boss 111, be equipped with the rib groove 1112 parallel with the inclined plane of stiffening rib 1111 again on stiffening rib 1111 to constitute a plurality of arris limit structures on supporting boss 111, the edge structure helps promoting the structural strength of hollow boss, and then promotes and support boss 111 and bear the pressure that top soil layer weight brought.

A fastening plate 112 is fixedly arranged on one side of the top surface of the drainage plate 11, a plurality of fastening bosses 113 are arranged on the fastening plate 112, and the fastening bosses 113 are hollow bosses with openings at the bottom ends. The drainage plate 11 is located and is provided with a plurality of connection bosss 114 with the one side that the buckle joint board 112 carried on the back mutually, and the inside cavity of buckle joint boss 113 and connection boss 114 looks adaptation to when drainage plate 11 needs to splice with adjacent drainage plate 11, buckle joint board 112 buckle joint is on adjacent drainage plate 11, and 113 covers of buckle joint boss are established in the connection boss 114 outside, have realized the interconnect location. The fastening boss 113 has the same structure as the support boss 111. Still need seal and the bonding processing through sealed position that will contradict each other between each drain bar 11 of same drainage array 1 to make each drain bar 11 and drain pipe 2 form an organic whole that combines, reduce the possibility of water to the construction surface infiltration at building top, promoted water-proof effects.

The drain board 11 and each structure on the drain board 11 are integrally formed and processed by a plastic suction and die pressing process, so that the production efficiency of the whole drain board 11 is high. The drain board 11 and the structures on the drain board 11 are all made of polyvinyl chloride PVC materials, so that the drain board 11 has the advantages of light weight, good strength, greenness, no pollution and low manufacturing cost.

Referring to fig. 7 to 8, two sets of reinforcing structures 22 are respectively disposed on the top of the inner wall of the drain pipe 2, and the two sets of reinforcing structures 22 are respectively located on the top of the inner wall of the drain pipe 2. The reinforcing structure 22 comprises two first reinforcing webs 221 and one second reinforcing web 222. Two first deep floor plates 221 all set up in parallel to the length direction of drain pipe 2, and one of them first deep floor plate 221 is connected with the inside wall of drain pipe 2, and another first deep floor plate 221 is connected with the interior roof of drain pipe 2, and two one sides interconnect that first deep floor plate 221 kept away from the drain pipe 2 inner wall. One side of the second reinforcing rib plate 222 is connected with the joint of the two first reinforcing rib plates 221, and the other side is connected with the edge of the top of the inner wall of the drainage pipe 2. Through the arrangement of the first reinforcing rib plate 221 and the second reinforcing rib plate 222 of the reinforcing structure 22, two spaces with triangular-like cross sections are formed on the top side inside the drain pipe 2, so that a plurality of stable triangular supporting structures are formed, and the structure of the drain pipe 2 is reinforced.

The bottom wall of the water inlet 21 of the water discharge pipe 2 is flush with the bottom of the water discharge pipe 2, meanwhile, the bottom of the water inlet 21 is not higher than the upper wall of the plate body of the water discharge plate 11, the water inlet 21 on the side wall of the water discharge pipe 2 is a flat long hole, and the ratio of the width to the height of the long hole is 3:2, so that water flow between boss gaps of the water discharge plate 11 can flow from the water inlet 21 more efficiently.

Referring to fig. 9 to 11, the four-way joint 6 for connecting the drainage pipes 2 in a cross shape and finally forming a grid-shaped pipeline includes a joint main body in a cross shape, the four cross-shaped end portions of the joint main body are provided with communicating grooves 62, and the extending directions of the communicating grooves 62 are parallel to the length direction of the corresponding cross-shaped end portions of the joint main body. Connect the inside central point of main part and seted up intercommunication cavity 61, four intercommunication grooves 62 communicate with intercommunication cavity 61 respectively, and intercommunication groove 62 and corresponding drain pipe 2 tip looks adaptation. The four-way joint 6 at the edge of the latticed pipeline composed of the water discharge pipes 2 is blocked by a baffle plate towards the communicating groove 62 at the outer side direction of the latticed pipeline.

Be provided with a plurality of support columns 64 in the intercommunication cavity 61 that connects the main part, the support column 64 quantity that this embodiment chose for use is four, and four support columns 64 set up respectively in each corner position of intercommunication cavity 61 to along vertical direction setting, the bottom of support column 64 sets firmly on the diapire of connecting the cavity, and the top is connected with the roof of connecting the cavity, thereby plays the supporting role, can promote the structural strength who connects the main part, and then the bearing capacity who connects the main part. Simultaneously because four support columns 64 set up with corresponding intercommunication groove 62 towards the notch of intercommunication cavity 61 respectively relatively, when drain pipe 2 stretched into intercommunication groove 62, stretch into the distance through support column 64 to the connecting pipe and restrict to carry out primary localization to each drain pipe 2 way when the construction. The top wall of the communicating chamber 61 of the part of the four-way joint 6 is provided with a connecting hole 63, and the connecting hole 63 is used for installing the ventilation structure 4.

The ventilation structure 4 comprises a vent pipe 41, and the vent pipe 41 extends in the vertical direction and is bonded with the connecting hole 63 through a sealing glue. Four support columns 64 in four-way joint 6 that are equipped with connecting hole 63 all set firmly a spacing post 65 towards the direction of connecting hole 63 axis, spacing post 65 is connected with the bottom surface that communicates cavity 61, and spacing post 65 highly is less than support column 64, when breather pipe 41 says from connecting hole 63 inserts, the tip lateral wall conflict of 41 says of breather pipe is gone to each spacing post 65 top to make each spacing post 65 say to breather pipe 41 and bear and fix a position, be convenient for subsequent bonding and sealing work.

Referring to fig. 1 to 2, the drain pipe 2 is communicated with a siphon reducer 5, the siphon reducer 5 is disposed along a vertical direction, the siphon reducer 5 is divided into an upper half 51 with a larger inner diameter and a lower half 52 with a smaller inner diameter, the upper half 51 and the lower half 52 are communicated with each other, and the upper half 51 is communicated with the drain pipe 2. After water flows into the siphon reducer pipe 5 from the water discharge pipe 2, in the process of flowing to the lower half part 52 from the upper half part 51, bubbles in the water flow are difficult to move downwards along with the water flow due to the fact that the pipe diameter is reduced, the water flow is gathered, the lower half part 52 is filled with the water flow, a siphon effect is formed, and the water discharge speed is improved.

Lower half 52 intercommunication of siphon reducing pipe 5 has inspection shaft 31, is equipped with transparent observation window on the inspection shaft 31, and the staff's of being convenient for inspection system's drainage condition, inspection shaft 31 and collecting pit 3 intercommunication can be provided with water purification filter equipment in the collecting pit 3, are convenient for purify the reuse to the infiltration water of retrieving.

The actual construction process of the system is as follows:

s1, cleaning a base layer, cleaning the construction surface of the top of the building, and removing floating soil, dust, garbage, broken stones and the like;

s2, planning a snapping line, and determining the arrangement positions of the drainage array 1 and the drainage pipe 2;

s3, tiling and bonding the drainage plates 11, splicing the drainage plates 11 to form a drainage array 1, laying the drainage plates at a specified position, and sealing and bonding each adjacent drainage plate 11 in the drainage array 1 so as to fix the drainage plates (if only one drainage plate 11 is in the drainage array 1, the step is skipped);

s4, laying the drain pipe 2 and the four-way joint 6, and installing, sealing and bonding the drain pipe 2 and the four-way joint 6;

s5, laying polyester geotextile, and covering the geotextile on the drainage pipe 2 and the drainage plate 11;

s6, installing 41 air pipes on the four-way joint 6, wherein the 41 air pipes penetrate through the geotextile and extend upwards;

and S7, backfilling the planting soil to form an artificial soil layer, and completing system construction.

The implementation principle of the embodiment is as follows:

the drainage plate 11 and the drainage pipe 2 are laid on the construction surface, a drainage structure and a drainage path are constructed, and the drainage path formed by the drainage pipe 2 is connected to the collection tank 3, so that the recovery of the seepage water is realized. The geotextile covers the drainage structure constructed by the drainage plate 11 and the drainage pipe 2, and the geotextile is supported by the supporting bosses 111 distributed on the drainage plate 11, so that a gap is formed between the surface of the drainage plate 11 and the geotextile. The soil layer is laid on the geotextile, and the plants are planted on the artificial soil layer. During rainwater weather, unnecessary moisture infiltrates down in the soil, and the infiltration water passes through geotechnological cloth and gets into between the space of drain bar 11 and geotechnological cloth to the water inlet 21 of drain pipe 2 lateral wall flows, and the infiltration water assembles to be concentrated by drain pipe 2 in drain pipe 2 after and guides to collecting pit 3, realizes the recovery of infiltration water. The drainage structure constructed by the drainage plates 11 and the drainage plates 11 replaces a drainage layer, an isolation layer, a protective layer and a slope finding layer in the related technology, and geotextile is used as a filter layer, so that the load of the system on the top of the building is greatly reduced. After water on a soil layer permeates into a gap between the drainage plate 11 and the geotextile in the drainage process, water pressure caused by water accumulated in the soil layer is transferred to the drainage plate 11, meanwhile, the drainage pipe 2 is communicated with the atmosphere through the ventilating structure 4, so that the drainage pipe 2 is in a low-pressure or zero-pressure state, the adjustment of the function of a siphon principle is met, the speed of water flowing into the drainage pipe 2 is increased through the siphon effect, the drainage speed is greatly increased, the drainage efficiency can meet the drainage requirement of a system in heavy rainfall weather, and the construction steps are simpler and more convenient, so that the construction period is shortened;

the pipeline composed of the water discharge pipe 2 is communicated with the collecting tank 3 through a siphon reducer pipe 5, and because the siphon reducer pipe 5 is vertically arranged, when the seepage water in the pipeline is converged to the siphon reducer pipe 5 and enters the upper half part 51 of the siphon reducer pipe 5, and the seepage water enters the lower half part 52 from the upper half part 51, because the inner diameter of the pipeline is reduced, bubbles in the seepage water flow are retained in the upper half part 51, so that the lower half part 52 is filled with the seepage water, a siphon effect is generated, and the conveying speed of the seepage water is accelerated;

by arranging the inspection well 31 and on the inspection well 31, workers can detect the drainage working condition of the system through the inspection well 31;

because the supporting bosses 111 are arranged in a staggered manner, the part of the geotextile laid above the supporting bosses 111 between the supporting bosses 111 is inclined at a certain angle, and the originally vertically downward gravity load applied to the geotextile by the backfilled soil is decomposed, so that the collapse and depression degree of the geotextile between the supporting bosses 111 is reduced, the geotextile is supported by the higher supporting bosses 111 for the first time, the lower concave part of the geotextile is supported by the lower supporting bosses 111 for the second time, the supporting interval of the supporting bosses 111 for the geotextile is also reduced, the collapse possibility of the geotextile is further reduced, and a sufficient drainage space is reserved;

the fastening and connecting plate 112, the fastening boss 113 and the connecting boss 114 are arranged, so that the adjacent drainage plates 11 can be connected seamlessly, the fastening and connecting plate 112 is overlapped on the plate body of the adjacent drainage plate 11, the fastening boss 113 is sleeved outside the connecting boss 114 at the edge of the adjacent drainage plate 11, so that the positioning is facilitated, and the reliable support is provided for the geotextile at the edge of the drainage plate 11;

the supporting boss 111 is arranged to be in a prismoid shape, the plurality of reinforcing ribs 1111 are arranged on the circumferential side wall of the supporting boss 111, and the reinforcing ribs 1111 are provided with the rib grooves 1112, so that a plurality of edge structures extending obliquely in the vertical direction are formed on the whole supporting boss 111, the capability of the supporting boss 111 for bearing the load in the vertical direction is greatly improved, the possibility of deformation of the supporting boss 111 is reduced, and the service life of the drainage plate 11 is prolonged;

the outer contour of the drainage plate 11 is square, so that the drainage plate is tightly abutted and hermetically connected with the side wall of the drainage plate 11, and the bottom wall of the water inlet 21 is flush with the bottom wall of the drainage pipe 2, so that the flow of the permeated water into the pipe is smoother;

two spaces with triangular cross sections are formed by the mutual connection of the two first reinforcing rib plates 221 and the second reinforcing rib plate 222, so that the structural strength of the pipe body is improved by utilizing a triangular stable structure;

the communication grooves 62 which respectively face four directions are arranged on the cross-shaped four-way joint 6 to connect the drain pipes 2 from the four directions, so that the drain pipes 2 can be distributed in a grid shape through the pipeline joints, and the proportion of the area of the drain plate 11 to the area of the water inlet 21 is reduced due to the grid arrangement of the drain pipes 2, so that the speed of gathering the seepage water on the drain plate 11 into the drain pipes 2 is increased;

the connection hole 63 is used for connecting the air pipe 41, and the air pipe 41 extends vertically and upwardly, so that the water drainage pipe 2 is communicated with the air above the soil, and the low pressure or zero pressure state of the water drainage pipe 2 is maintained, thereby forming a siphon effect.

Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.