阅读说明：本技术 抗滑桩与绿化条带相结合的浆砌片石公路边坡防护结构 (Anti-slide pile and greening strip combined grout rubble highway slope protection structure ) 是由 郝喆 李楠 曲赜胜 夏琪 景爽 于 2020-12-14 设计创作，主要内容包括：本发明涉及一种抗滑桩与绿化条带相结合的浆砌片石公路边坡防护结构,在防护坡内部的下半部设有混凝土浇筑的抗滑桩,抗滑桩沿防护坡长度方向等距设置；在防护坡的倾斜表面设有浆砌片石堆砌而成的护坡面,护坡面上设置绿化槽,绿化槽内设置沙土并种植植被；沿护坡长度方向交错设置若干个泄水孔,泄水孔内放置塑料泄水管。该结构护坡采用浆砌片石并通过抗滑桩加固,缓解了目前边坡稳定性较差的现象,同时具备支护、防护和绿化一体化的综合功能,具有加固边坡和美化环境的作用。(The invention relates to a protective structure for a road side slope made of grouted rubble, wherein anti-slide piles and green strips are combined, the concrete poured anti-slide piles are arranged on the lower half part inside a protective slope, and the anti-slide piles are arranged at equal intervals along the length direction of the protective slope; the slope protection surface formed by piling stone chips is arranged on the inclined surface of the protection slope, a greening groove is arranged on the protection slope surface, and sandy soil and vegetation are planted in the greening groove; set up a plurality of outlet along slope protection length direction is crisscross, places the plastics outlet pipe in the outlet. The slope protection of the structure adopts the grouted rubble and is reinforced through the anti-slide pile, the phenomenon that the stability of the current slope is poor is relieved, the comprehensive functions of supporting, protecting and greening are integrated are achieved, and the slope protection structure has the functions of reinforcing the slope and beautifying the environment.)

1. The utility model provides a grout rubble highway side slope protective structure that friction pile and greenbelt combined together which characterized in that: the lower half part inside the protective slope is provided with concrete poured anti-slide piles (1), and the anti-slide piles (1) are arranged at equal intervals along the length direction of the protective slope; a slope protection surface (5) formed by piling stone chips in mortar is arranged on the inclined surface of the protection slope, a greening groove (6) is arranged on the slope protection surface (5), sand and soil are arranged in the greening groove (6), and vegetation is planted in the greening groove; set up a plurality of outlet (4) along slope protection length direction is crisscross, place plastics outlet pipe (8) in outlet (4).

2. A mortared stone highway slope protection structure in combination with an anti-slide pile and a green strip as claimed in claim 1, wherein: in every 10 m's of revetment length direction in the dado wall, from lower supreme, every row of the outlet (4) of even number row is equipped with 3, and every row of the outlet (4) of odd number row is equipped with 4, and every row staggers in proper order and arranges.

3. A mortared stone highway slope protective structure combining anti-slide piles with green strips as claimed in claim 2, wherein: the plastic water drain pipe (8) is provided with water seepage holes (8-1) and quincunx cloth holes which are uniformly distributed on the circumference, and the outer circumference of the plastic water drain pipe (8) is wrapped with geotextile (8-2).

4. A mortared stone highway slope protection structure in combination with an anti-slide pile and a green strip as claimed in claim 1, wherein: the anti-slide piles (1) are transversely arranged at equal intervals to form a row of single piles, and each anti-slide pile (1) is composed of longitudinal bars (2) and stirrups (3) and is poured with concrete.

5. A mortared stone highway slope protection structure in combination with an anti-slide pile and a green strip as claimed in claim 1, wherein: the greening strips are arranged in the greening grooves (6), grass planting holes are dug in the greening grooves (6), the grass planting holes are uniformly and equidistantly arranged and are connected with one another to form the greening strips.

6. A mortared and tiled stone highway slope protective structure in combination with the green strips of claim 5, wherein: the diameter of the grass planting hole is 8cm, the depth of the grass planting hole is 10cm, and the center distance between every 10m adjacent grass planting holes in the revetment is 20 cm.

7. A mortared stone highway slope protection structure in combination with an anti-slide pile and a green strip as claimed in claim 1, wherein: the bottom of the protective slope is provided with a U-shaped drainage ditch (7), the U-shaped drainage ditch (7) is of a cast-in-place concrete structure, and a cold-drawn steel wire is arranged inside the U-shaped drainage ditch.

8. A mortared stone highway slope protection structure in combination with an anti-slide pile and a green strip as claimed in claim 1, wherein: and planting climbing plants or shrubs on the slope protection way (9) of the protection slope and the platform (11) at the upper part of the slope.

9. A construction method of a mortar rubble highway slope protection structure combining an anti-slide pile and a green strip is characterized by comprising the following steps:

1) constructing at the root of the original gradient, pouring anti-slide piles (1) of a reinforced concrete structure, wherein the intervals of the anti-slide piles (1) are 4m to form a row of single piles;

2) drilling seepage holes with the diameter of 8mm and quincunx cloth holes on the outer circumference of the plastic water drain pipe (8), wherein the hole spacing is 200mm, and the geotechnical cloth is wrapped on the outer circumference of the plastic water drain pipe (8);

3) the drainage holes (4) are distributed along the slope surface in a staggered manner, plastic drainage pipes (8) are arranged in the drainage holes, from bottom to top, 3 drainage holes (4) in double rows are arranged in each row, and 4 drainage holes (4) in single row are arranged in each row in every 10m of the facing wall;

4) then, arranging and forming the whole slope surface by adopting a gravel cushion layer, piling and grouting rubbles on the surface of the gravel cushion layer to form a slope protection surface (5), arranging a greening groove (6) on the slope protection surface (5), digging grass planting holes on the greening groove (6), wherein the diameter of each grass planting hole is 8cm, the depth of each grass planting hole is 10cm, the grass planting holes are mutually connected to form greening strips, the center distance between every 10m adjacent grass planting holes in the protection surface wall is 20cm, meanwhile, the outer end of a plastic water drain pipe (8) is arranged to be a water drain hole (4), and the plastic water drain pipe (8) extends out of the water drain hole (4);

5) the bottom of the protective slope is provided with a U-shaped drainage ditch (7); planting climbing plants or shrubs on the slope protection way (9) of the protection slope and the platform (11) at the upper part of the slope;

6) every section prevents that slope protection length is 10 meters, and adjacent both ends are prevented the slope protection and are set up expansion joint (10) to adopt the waterproof material of pitch to joint.

Technical Field

The invention relates to a road slope protection structure combining anti-slide piles and greening strips, which is suitable for protecting a soft rock or broken rock slope which is easy to weather or seriously weathered and belongs to the field of road side slope protection construction.

Background

The rectangular anti-slide pile generates resistance by inserting into a stable stratum below the sliding surface, resists the gliding thrust of the sliding body, increases the stability of the sliding body and enables the sliding body in front of the pile to reach a stable state. The grout rubble bank protection has advantages such as structural style is simple, the protecting effect is obvious, but grout rubble hard covering is unfavorable for vegetation to grow. In recent years, with the rapid development of highways, the strength of slope rock soil is reduced due to rain wash and the like of a slope, so that the sliding resistance is reduced, and the conventional protective structure is difficult to meet the comprehensive requirements of sliding resistance, slope protection and ecological restoration due to simple structure and poor slope protection effect and influences on vegetation restoration, so that the improvement is needed. Therefore, the design of the road slope protection system with remarkable comprehensive benefits has great practical significance.

Disclosure of Invention

The invention aims to solve the technical problem of providing a mortar-rubble highway side slope protection structure combining anti-slide piles and greening strips, wherein mortar-rubble stones are adopted for protecting the slope of the structure and are reinforced through the anti-slide piles, so that the phenomenon of poor stability of the current side slope is relieved, and the structure has integrated functions of supporting, protecting and greening and has the functions of slope reinforcement and environment beautification.

In order to solve the above problems, the specific technical scheme of the invention is as follows: a kind of antiskid pile and green stripe combined slurry rubble highway side slope protective structure, there are concrete pouring antiskid piles in the lower half inside the protective slope, the antiskid piles are set up equidistantly along the length direction of the protective slope; the slope protection surface formed by piling stone chips is arranged on the inclined surface of the protection slope, a greening groove is arranged on the protection slope surface, and sandy soil and vegetation are planted in the greening groove; set up a plurality of outlet along slope protection length direction is crisscross, places the plastics outlet pipe in the outlet.

In every 10 m's of edge bank protection length direction dado wall, by supreme down, every row of the outlet of even number row is equipped with 3, and every row of the outlet of odd number row is equipped with 4, and every row staggers in proper order and arranges.

The plastic water drain pipe is characterized in that water seepage holes and plum blossom-shaped cloth holes are uniformly distributed on the circumference of the plastic water drain pipe, and the outer circumference of the plastic water drain pipe is wrapped with geotextile.

The anti-slide piles are transversely arranged at equal intervals to form a row of single piles, each anti-slide pile is composed of longitudinal bars and stirrups, and concrete is poured.

The greening strips are arranged in the greening grooves, grass planting holes are dug in the greening grooves and are uniformly and equidistantly arranged and are connected with one another to form the greening strips.

The diameter of the grass planting hole is 8cm, the depth of the grass planting hole is 10cm, and the center distance between every 10m adjacent grass planting holes in the revetment is 20 cm.

The bottom of the protective slope is provided with a U-shaped drainage ditch which is of a cast-in-place concrete structure and is internally provided with cold-drawn steel wires.

And planting climbing plants or shrubs on the slope protection way of the protection slope and the platform at the upper part of the slope.

A construction method of a mortar rubble highway slope protection structure combining an anti-slide pile and a green strip comprises the following steps:

1) constructing at the root of the original gradient, pouring anti-slide piles of a reinforced concrete structure, wherein the intervals of the anti-slide piles are 4m to form a row of single piles;

2) drilling water seepage holes with the diameter of 8mm and quincunx cloth holes at the intervals of 200mm on the outer circumference of the plastic water drain pipe, and wrapping geotextile on the outer circumference of the plastic water drain pipe;

3) the drainage holes are distributed along the slope surface in a staggered mode, plastic drainage pipes are arranged in the drainage holes, 3 drainage holes are arranged in each row of the double rows from bottom to top in each 10m facing wall, and 4 drainage holes are arranged in each row of the single row;

4) then, arranging and forming the whole slope surface by adopting a gravel cushion layer, piling and grouting rubbles on the surface of the gravel cushion layer to form a slope protection surface, arranging greening grooves on the slope protection surface, digging grass planting holes on the greening grooves, wherein the diameter of each grass planting hole is 8cm, the depth of each grass planting hole is 10cm, the grass planting holes are mutually connected to form greening strips, the center distance between every 10m adjacent grass planting holes in the surface protection wall is 20cm, meanwhile, the outer end of a plastic water drain pipe is arranged to be a water drain hole, and the plastic water drain pipe extends out of the water drain hole;

5) a U-shaped drainage ditch is arranged at the bottom of the protection slope; planting climbing plants or shrubs on the slope protection way of the protection slope and the platform at the upper part of the slope;

every section of protection slope length is 10 meters, and the adjacent both ends protection slope sets up the expansion joint to adopt pitch waterproof material to joint.

The invention has the beneficial effects that:

1. when the load of the rock slope is large, a mode of combining rectangular anti-skid piles and mortar-masonry sheets is adopted, and the slope protection is built by M7.5 mortar-masonry sheets, so that the structural deformation can be prevented, and the problem of integral stability of the slope structure is solved;

2. when the side slope has heavy rainfall, a plastic water drain pipe is arranged in the side slope, a water seepage hole is formed in the water drain pipe, and the outer side of the water drain pipe is wrapped by the anti-filtration geotextile, so that rainwater can be quickly drained and removed, and meanwhile, the soil loss on the side slope is reduced;

3. the greening strips are arranged inside the greening grooves on the side slopes, so that the effect of beautifying the side slopes can be achieved;

4. the U-shaped drainage ditch is arranged at the bottom of the side slope, so that the manufacturing cost is saved compared with that of a rectangular side ditch, the drainage speed of accumulated water can be increased, and the side ditch is not easy to deform;

5. this novel antiskid pile adds grout piece formula protective structure, it is stronger to the adaptability of topography, geology and investment scheduling problem, can play important effect in road slope construction.

Drawings

Figure 1 is a side sectional view of a highway side slope protective structure.

Fig. 2 is a schematic front view of a highway slope protection structure.

FIG. 3 is a schematic view of the structure of a plastic downcomer.

Detailed Description

As shown in fig. 1 and 2, a masonry rubble highway slope protection structure combining anti-slide piles and greening strips comprises a slope, a slope protection surface 5 combining masonry rubbles and greening strips, and single-row anti-slide piles arranged along the lateral direction of the slope at intervals. And a U-shaped drainage ditch 7 is arranged at the bottom of the side slope.

The lower half part inside the protection slope is provided with concrete poured anti-slide piles 1, the anti-slide piles 1 are arranged at equal intervals along the length direction of the protection slope, the anti-slide piles 1 are spaced by 4m to form a row of single piles, each anti-slide pile 1 is composed of longitudinal bars 2 and stirrups 3, concrete is poured, and the anti-slide piles adopt a mode of configuring reinforcing steel bars and pouring concrete to reinforce rock strata near a sliding surface.

Slope protection face 5 that the stone sheet pile up to form is equipped with in the slope surface of protection slope, sets up afforestation groove 6 on the slope protection face 5, through digging out the grass planting hole on the side slope, the even equidistance in grass planting hole arranges, interconnect is the afforestation strip. The diameter of the grass planting hole is 8cm, the depth of the grass planting hole is 10cm, and the center distance between every 10m adjacent grass planting holes in the revetment is 20 cm. The width of the greening strip is 1.1m, and 196 grass planting holes are arranged in every 10m greening strip with the length and the width of 1.1 m.

Set up a plurality of diameter for 100 mm's outlet 4 along bank protection length direction crisscross in the slope, place plastics outlet pipe 8 in the outlet, the 8 external diameters of plastics outlet pipe are 75 mm. Every row is staggered in turn, and in every 10m side slope, from bottom to top, every row of the double rows of the drain holes 4 is provided with 3, and every row of the single rows of the drain holes 4 is provided with 4. The outer circumference of the plastic drain pipe 8 is wrapped with geotextile as shown in fig. 3.

The bottom of the protective slope is provided with a U-shaped drainage ditch 7, the U-shaped drainage ditch 7 is of a cast-in-place concrete structure, the thickness of the U-shaped drainage ditch is 30cm, and the U-shaped drainage ditch is internally provided with a cold-drawn steel wire with the diameter of 5 mm. And planting climbing plants or shrubs on the slope protection way 9 of the protection slope and the platform 11 at the upper part of the slope.

Example (b):

the integral framework is built by M7.5 grouted rubbles, and grouted rubbles protection slopes with the top width of 0.45M are sequentially arranged from top to bottom; a water discharge hole 4 with the diameter of 100 mm; a drain pipe 8 with the diameter of 75mm is arranged in the water pipe; a greening groove 6 with the width of 1.1 m; a grass planting hole with the diameter of 8cm and the depth of 10 cm; a 2cm expansion joint 10; a rectangular slide-resistant pile 1 with the length of 1.6m and the width of 1 m; the U-shaped drainage ditch 7 is a water flow collection part, and is 0.8m in width, 0.7m in depth and 0.3m in thickness.

The slope is provided with 2cm expansion joints 10 every 10m along the trend, and asphalt waterproof materials are filled in the expansion joints.

The rectangular anti-slide pile 1 can be formed by manual or mechanical hole forming and is built in a mode of reinforcing steel bars and concrete, the reinforcing steel bars are arranged in a mode of stirrups 3 and longitudinal bars 2, the longitudinal bars 2 are made of HRB400 reinforcing steel bar materials with the diameter of 10mm, one reinforcing steel bar is configured every 15 centimeters, 2 stressed longitudinal bars along the longitudinal direction of the side slope are bundled into a bundle, and the total number of the longitudinal bars 2 in each rectangular anti-slide pile 1 is 42; the stirrups 3 are made of 8 mm-diameter HRB335 steel bar materials and are arranged every 35cm, and the number of the stirrups 3 in each rectangular slide-resistant pile 1 is 72.

The side slope sets up afforestation groove 6, and the side slope bottom is apart from the center of lower part afforestation groove 2.5m, and two afforestation grooves 6 interval 3 m.

Set up a plurality of diameter for 75 mm's plastics outlet pipe 8 along bank protection length direction crisscross in the slope, the 8 long 7m of plastics outlet pipe is equipped with 8 mm's infiltration hole on the plastics outlet pipe 8, plum blossom shape cloth hole, hole interval 200mm, and the infiltration hole is located along circumference evenly distributed at this. From bottom to top, the distance between the drainage holes 4 on the two sides of the double rows and the boundary of the section is 2m, and the distance between the centers of the adjacent drainage holes 4 is 3 m; the distance between the drainage holes 4 at two sides of the single row and the boundary of the section is 1m, and the distance between the centers of the two drainage holes 4 in the middle is 3 m.

The grass planting holes are dug out on the side slope, solid fertilizer is put in the holes, and after the holes are buried by soil and sand, herbaceous plants which are suitable for local area growth and can improve the environment and landscape are sown, the grass planting holes are evenly arranged at equal intervals and are connected with each other to form greening strips. The diameter of the grass planting hole is 8cm, the depth of the grass planting hole is 10cm, the center distance of adjacent grass planting holes in each 10m of facing wall is 20cm, and 196 grass planting holes are formed in each 10m of greening strip with the length and the width of 1.1 m.

A construction method of a mortar rubble highway slope protection structure combining an anti-slide pile and a green strip comprises the following steps:

1) constructing at the root of the original gradient, pouring rectangular anti-slide piles 1 of a reinforced concrete structure, wherein the rectangular anti-slide piles 1 are spaced by 4m to form a row of single piles;

2) drilling water seepage holes 8-1 with the diameter of 8mm and quincunx cloth holes with the hole spacing of 200mm on the outer circumference of the plastic water drain pipe 8, and wrapping geotextile 8-2 on the outer circumference of the plastic water drain pipe 8;

3) the water outlet holes 4 are distributed along the slope surface in a staggered way, plastic water outlet pipes 8 are arranged in the water outlet holes, from bottom to top, 3 water outlet holes are arranged in each row of the double rows of water outlet holes 4, and 4 water outlet holes are arranged in each row of the odd rows of water outlet holes 4;

4) then, arranging and molding the whole slope surface by adopting a gravel cushion layer, stacking and grouting rubbles on the surface of the gravel cushion layer to form a slope protection surface 5, arranging a greening groove 6 on the slope protection surface 5, digging grass planting holes on the greening groove 6, wherein the diameter of each grass planting hole is 8cm, the depth of each grass planting hole is 10cm, the center distance between every 10m adjacent grass planting holes in the facing wall is 20cm, and the grass planting holes are connected with one another to form greening strips; meanwhile, the outer end of the plastic drain pipe 8 is provided with a drain hole 4, and the plastic drain pipe 8 extends out of the drain hole 4;

5) the bottom of the protective slope is provided with a U-shaped drainage ditch 7; planting climbing plants or shrubs on the slope protection way 9 of the protection slope and the platform 11 on the upper part of the slope;

6) each section of protective slope is 10 meters in length, the expansion joints 10 are arranged at the protective slopes at two adjacent ends, and asphalt waterproof materials are used for filling joints.