阅读说明：本技术 一种垃圾填埋场深层降水抽排竖井施工方法 (Construction method of deep-layer dewatering pumping shaft of refuse landfill ) 是由 汪强 俞文灿 王立钢 于 2020-07-20 设计创作，主要内容包括：本发明公开了一种垃圾填埋场深层降水抽排竖井施工方法,涉及降排水技术领域；一种垃圾填埋场深层降水抽排竖井施工方法,步骤如下：步骤a：在地面上钻出钻孔；步骤b：在钢筋笼外包裹双向土工格栅,然后将钢筋笼放入钻孔内；步骤c：在镀锌钢管外侧包裹土工复合排水网,然后将镀锌钢管放入钻孔,镀锌钢管位于钢筋笼内；步骤d：利用灌石机在钢筋笼和镀锌钢管之间灌注碎石；步骤e：在镀锌钢管内安装用于抽取渗沥液的潜水泵。本发明可以避免堵塞,同时料斗的使用防止碎石进入镀锌钢管。(The invention discloses a construction method of a deep-layer dewatering and pumping vertical shaft of a refuse landfill, and relates to the technical field of dewatering and pumping; a construction method of a deep dewatering pumping shaft of a refuse landfill comprises the following steps: step a: drilling a borehole in the ground; step b: wrapping a bidirectional geogrid outside the reinforcement cage, and then putting the reinforcement cage into the drill hole; step c: wrapping the outer side of the galvanized steel pipe with a geotechnical composite drainage net, and then putting the galvanized steel pipe into the drilled hole, wherein the galvanized steel pipe is positioned in the reinforcement cage; step d: filling broken stones between the reinforcement cage and the galvanized steel pipe by using a stone filling machine; step e: and a submersible pump for pumping leachate is arranged in the galvanized steel pipe. The invention can avoid blockage, and meanwhile, the use of the hopper prevents broken stones from entering the galvanized steel pipe.)

1. A construction method of a deep dewatering pumping shaft of a refuse landfill is characterized by comprising the following steps:

step a: drilling a borehole in the ground;

step b: wrapping a bidirectional geogrid outside the reinforcement cage, and then putting the reinforcement cage into the drill hole;

step c: wrapping the outer side of the galvanized steel pipe with a geotechnical composite drainage net, and then putting the galvanized steel pipe into the drilled hole, wherein the galvanized steel pipe is positioned in the reinforcement cage;

step d: filling broken stones between the reinforcement cage and the galvanized steel pipe by using a stone filling machine;

step e: a submersible pump for pumping leachate is arranged in the galvanized steel pipe;

the galvanized steel pipe comprises an upper section, a middle section and a lower section which are sequentially arranged from top to bottom; the upper section and the middle section are connected through a flange, and the middle section and the lower section are connected through a flange;

the stone filling machine comprises a lifting basket, a hopper, a stabilizing mechanism, a material outlet, a material baffle plate and a control mechanism, wherein the lifting basket is sleeved on the galvanized steel pipe, the hopper is used for infusing broken stones into the lifting basket, the stabilizing mechanism is used for ensuring the stability of the lifting basket, the material baffle plate is used for being positioned at the lower side of the lifting basket, one side of the material baffle plate is hinged to the material outlet, and the control mechanism is used for;

and d, inputting the crushed stone into the lifting basket by the hopper, then descending the lifting basket along the galvanized steel pipe, when the lower side of the lifting basket impacts the bottom of the drilled hole or the crushed stone, enabling one end of the lifting basket to move upwards for a distance of impact downwards again, enabling the impacting times to be at least twice, then opening the material baffle by the control mechanism, discharging the crushed stone from the discharge hole, then closing the material baffle, enabling the lifting basket to move upwards again to accept the infusion of the hopper, and sequentially and repeatedly infusing the crushed stone into the drilled hole.

2. The construction method of the deep-layer precipitation drainage shaft of the refuse landfill according to claim 1, wherein the outer side of the lifting basket is smaller than the inner diameter of the reinforcement cage, and the inner diameter of the lifting basket is larger than the outer diameter of the flange;

the stabilizing mechanism comprises a plurality of stabilizing components; a plurality of grooves for accommodating the stabilizing components are formed in the lifting basket;

the stabilizing assembly comprises at least three telescopic wheel assemblies, one end of each telescopic wheel assembly is abutted against the geotechnical composite drainage net on the outer side of the galvanized steel pipe;

the telescopic wheel assembly is arranged along the axial direction of the galvanized steel pipe;

the stabilizing assembly also comprises at least four control rods and a return spring, wherein the middle parts of the control rods are hinged in the grooves and used for controlling the telescopic wheel assemblies so as to realize the telescopic wheel assemblies, and the return spring is positioned at the hinged part of the control rods;

the control rod is arranged along the axial direction of the galvanized steel pipe; the control rod and the telescopic wheel component are arranged at intervals;

the telescopic wheel component comprises a guide cylinder fixedly connected in a groove, a telescopic rod with one end connected in the guide cylinder in a sliding manner, a roller rotatably connected at the other end of the telescopic rod, a first spring applying force towards the galvanized steel pipe to the telescopic rod, a first unlocking rod penetrating through the guide cylinder, a second unlocking rod penetrating through the guide cylinder, a first via hole positioned on the first unlocking rod, a second via hole positioned on the second unlocking rod, a first unlocking spring for resetting the first unlocking rod, a second unlocking spring for resetting the second unlocking rod, a sliding part penetrating through the guide cylinder, a clamping head positioned in the guide cylinder and fixedly connected with the sliding part, a second clamping head fixedly connected at one end of the telescopic rod far away from the roller and matched with the clamping head, a first force transmission spring positioned at one end of the sliding part, a second force transmission spring positioned at the other end of the sliding part, a buffer rope component with one end of the control rod far away from one end of the galvanized steel pipe, The through hole is positioned at one end of the guide cylinder, which is far away from the galvanized steel pipe;

the lower end of the first unlocking rod is abutted against the control rod positioned on the lower side of the corresponding telescopic wheel component, and the upper end of the second unlocking rod is abutted against the control rod positioned on the upper side of the corresponding telescopic wheel component;

one end of the first force transmission spring, which is far away from the sliding part, is connected to the first unlocking rod, and one end of the second force transmission spring, which is far away from the sliding part, is connected to the second unlocking rod;

the other end of the buffer rope assembly penetrates through the through hole to be connected to one end, far away from the roller, of the telescopic rod;

the buffer rope assembly comprises two pull wires and a buffer piece positioned between the pull wires;

one of the pull wires is connected with the control rod, the other pull wire is connected with the telescopic rod,

the buffer piece comprises a shell, two limiting blocks positioned in the shell and a tension spring positioned between the limiting blocks;

one end of one of the pull wires enters the shell and is connected to one of the limit blocks, and one end of the other pull wire enters the shell and is connected to the other limit block.

3. The construction method of the deep-layer water-reducing pumping shaft of the refuse landfill according to claim 1,

the lifting basket comprises a basket body, a plurality of sliding holes positioned on the bottom wall of the basket body and a lifting support connected in the sliding holes in a sliding manner;

the lower port of the lifting bracket forms the discharge port;

the lifting basket further comprises an arc cylinder body, one end of which is fixedly connected in the lifting support, a second limiting block and an arc rod, one end of which is positioned in the arc cylinder body and is fixedly connected with the second limiting block;

the other end of the arc rod is connected to the striker plate;

the lifting basket further comprises a channel positioned in the lifting support, a force transmission rope with one end connected to the second limiting block, a rotating shaft rotationally connected in the basket body, a through hole positioned in the rotating shaft, a gear rotationally connected to the rotating shaft, a one-way bearing positioned between the gear and the rotating shaft, a rack with the lower end connected to the lifting support and meshed with the gear, a stop rod slidably connected to the basket body, and a second tension spring used for applying upward force to the stop rod;

the lower end of the stop rod is abutted against the rotating shaft, and one end of the force transmission rope, which is far away from the second limiting block, penetrates through the channel and is connected with the stop rod;

the lifting basket is characterized in that a connecting plate is arranged between the lifting supports and fixedly connected with the lifting supports, the lower side face of the connecting plate is flush with the lower end face of the lifting supports, and a connecting spring is arranged between the connecting plate and the basket body.

Technical Field

The invention belongs to the technical field of dewatering and drainage, and particularly relates to a construction method of a deep dewatering pumping drainage shaft of a refuse landfill.

Background

At present, deep precipitation of a refuse landfill is widely performed by a vertical shaft pumping and draining mode.

In the in-process of construction, especially pour the rubble into the in-process between steel reinforcement cage and the galvanized steel pipe, because the galvanized steel pipe divide into a plurality of sections, adopt flange joint between section and the section, prior art often adopts the excavator to pour into, the precision is more difficult to master, pour the rubble into in the galvanized steel pipe easily, and simultaneously, often once only pour into a lot when pouring into, the rubble forms the jam in the position of flange easily at the in-process of whereabouts, thereby can vacuole formation in drilling, the construction quality of serious influence.

Disclosure of Invention

The invention aims to overcome the defects that the crushed stone poured into the galvanized steel pipe is easy to enter and block in the prior art, and provides a construction method of a deep precipitation drainage vertical shaft of a refuse landfill to prevent the crushed stone from entering the galvanized steel pipe and blocking.

In order to achieve the purpose, the invention adopts the following technical scheme:

a construction method of a deep dewatering pumping shaft of a refuse landfill comprises the following steps:

step a: drilling a borehole in the ground;

step b: wrapping a bidirectional geogrid outside the reinforcement cage, and then putting the reinforcement cage into the drill hole;

step c: wrapping the outer side of the galvanized steel pipe with a geotechnical composite drainage net, and then putting the galvanized steel pipe into the drilled hole, wherein the galvanized steel pipe is positioned in the reinforcement cage;

step d: filling broken stones between the reinforcement cage and the galvanized steel pipe by using a stone filling machine;

step e: a submersible pump for pumping leachate is arranged in the galvanized steel pipe;

the galvanized steel pipe comprises an upper section, a middle section and a lower section which are sequentially arranged from top to bottom; the upper section and the middle section are connected through a flange, and the middle section and the lower section are connected through a flange;

the stone filling machine comprises a lifting basket, a hopper, a stabilizing mechanism, a material outlet, a material baffle plate and a control mechanism, wherein the lifting basket is sleeved on the galvanized steel pipe, the hopper is used for infusing broken stones into the lifting basket, the stabilizing mechanism is used for ensuring the stability of the lifting basket, the material baffle plate is used for being positioned at the lower side of the lifting basket, one side of the material baffle plate is hinged to the material outlet, and the control mechanism is used for;

and d, inputting the crushed stone into the lifting basket by the hopper, then descending the lifting basket along the galvanized steel pipe, when the lower side of the lifting basket impacts the bottom of the drilled hole or the crushed stone, enabling one end of the lifting basket to move upwards for a distance of impact downwards again, enabling the impacting times to be at least twice, then opening the material baffle by the control mechanism, discharging the crushed stone from the discharge hole, then closing the material baffle, enabling the lifting basket to move upwards again to accept the infusion of the hopper, and sequentially and repeatedly infusing the crushed stone into the drilled hole.

The invention can avoid blockage, and meanwhile, the use of the hopper prevents broken stones from entering the galvanized steel pipe.

Preferably, the outer side of the lifting basket is smaller than the inner diameter of the reinforcement cage, and the inner diameter of the lifting basket is larger than the outer diameter of the flange plate; the stabilizing mechanism comprises a plurality of stabilizing components; a plurality of grooves for accommodating the stabilizing components are formed in the lifting basket; the stabilizing component comprises at least three telescopic wheel components with one ends abutting against the geotechnical composite drainage net on the outer side of the galvanized steel pipe; the telescopic wheel component is arranged along the axial direction of the galvanized steel pipe; the stabilizing assembly also comprises at least four control rods and a return spring, wherein the middle parts of the control rods are hinged in the grooves and used for controlling the telescopic wheel assemblies so as to realize the telescopic wheel assemblies, and the return spring is positioned at the hinged part of the control rods; the control rod is arranged along the axial direction of the galvanized steel pipe; the control rod and the telescopic wheel component are arranged at intervals; the telescopic wheel component comprises a guide cylinder fixedly connected in a groove, a telescopic rod with one end connected in the guide cylinder in a sliding manner, a roller rotatably connected at the other end of the telescopic rod, a first spring applying force towards the galvanized steel pipe to the telescopic rod, a first unlocking rod penetrating through the guide cylinder, a second unlocking rod penetrating through the guide cylinder, a first via hole positioned on the first unlocking rod, a second via hole positioned on the second unlocking rod, a first unlocking spring for resetting the first unlocking rod, a second unlocking spring for resetting the second unlocking rod, a sliding part penetrating through the guide cylinder, a clamping head positioned in the guide cylinder and fixedly connected with the sliding part, a second clamping head fixedly connected at one end of the telescopic rod far away from the roller and matched with the clamping head, a first force transmission spring positioned at one end of the sliding part, a second force transmission spring positioned at the other end of the sliding part, a buffer rope component with one end of the control rod far away from one end of the galvanized steel pipe, The through hole is positioned at one end of the guide cylinder, which is far away from the galvanized steel pipe; the lower end of the first unlocking rod is abutted against the control rod positioned on the lower side of the corresponding telescopic wheel component, and the upper end of the second unlocking rod is abutted against the control rod positioned on the upper side of the corresponding telescopic wheel component; one end of the first force transmission spring, which is far away from the sliding part, is connected to the first unlocking rod, and one end of the second force transmission spring, which is far away from the sliding part, is connected to the second unlocking rod; the other end of the buffer rope assembly penetrates through the through hole to be connected to one end, far away from the roller, of the telescopic rod; the buffer rope assembly comprises two pull wires and a buffer piece positioned between the pull wires; one of the pull wires is connected to the control rod, the other pull wire is connected to the telescopic rod, and the buffer piece comprises a shell, two limiting blocks positioned in the shell and a tension spring positioned between the limiting blocks; one end of one of the pull wires enters the shell and is connected to one of the limit blocks, and one end of the other pull wire enters the shell and is connected to the other limit block.

Preferably, the lifting basket comprises a basket body, a plurality of sliding holes positioned on the bottom wall of the basket body and a lifting support connected in the sliding holes in a sliding manner; the lower port of the lifting bracket forms the discharge port; the lifting basket further comprises an arc cylinder body, one end of which is fixedly connected in the lifting support, a second limiting block and an arc rod, one end of which is positioned in the arc cylinder body and is fixedly connected with the second limiting block; the other end of the arc rod is connected to the striker plate; the lifting basket further comprises a channel positioned in the lifting support, a force transmission rope with one end connected to the second limiting block, a rotating shaft rotationally connected in the basket body, a through hole positioned in the rotating shaft, a gear rotationally connected to the rotating shaft, a one-way bearing positioned between the gear and the rotating shaft, a rack with the lower end connected to the lifting support and meshed with the gear, a stop rod slidably connected to the basket body, and a second tension spring used for applying upward force to the stop rod; the lower end of the stop rod is abutted against the rotating shaft, and one end of the force transmission rope, which is far away from the second limiting block, penetrates through the channel and is connected with the stop rod; the lifting basket is characterized in that a connecting plate is arranged between the lifting supports and fixedly connected with the lifting supports, the lower side face of the connecting plate is flush with the lower end face of the lifting supports, and a connecting spring is arranged between the connecting plate and the basket body.

The invention has the beneficial effects that: the invention provides a construction method of a deep-layer dewatering pumping shaft of a refuse landfill, which avoids crushed stone from entering galvanized steel pipes and blocking.

In addition, the construction of the vertical shaft is only suitable for the environment of a refuse dump, and the vertical shaft technology adopted by the construction of the vertical shaft is different from that adopted by other environments.

Drawings

Fig. 1 is a schematic diagram of a shaft;

FIG. 2 is a schematic view of the gravel pack;

FIG. 3 is a top view of the basket;

FIG. 4 is a partial side view of the basket;

FIG. 5 is an enlarged view of FIG. 2 at A;

FIG. 6 is an enlarged view of FIG. 5 at B;

FIG. 7 is a cross-sectional view C-C of FIG. 6;

FIG. 8 is a schematic view of the flange after rotation of the lowermost lever;

FIG. 9 is a schematic view of the flange after it has passed the lowermost lever;

FIG. 10 is a schematic view of the flange after rotation of the penultimate lever;

FIG. 11 is a schematic view of the lowermost roller being repositioned after the penultimate lever has been rotated;

FIG. 12 is an enlarged view of FIG. 2 at D;

FIG. 13 is a view showing the relationship between the rotating shaft and the stopper rod;

FIG. 14 is a view showing the relationship between a stopper rod and a through hole;

FIG. 15 is a schematic view of the rack rotating the gear to rotate the shaft after the basket bottoms;

fig. 16 is a schematic view of the striker plate opening.

In the figure: the device comprises a drill hole 1, a reinforcement cage 2, a galvanized steel pipe 3, a submersible pump 4, an upper section 5, a middle section 6, a lower section 7, a lifting basket 8, a hopper 9, a discharge hole 10, a striker plate 11, a flange plate 12, a groove 13, a control rod 14, a guide cylinder 15, a telescopic rod 16, a roller 17, a first spring 18, a first unlocking rod 19, a second unlocking rod 20, a first via hole 21, a second via hole 22, a first unlocking spring 23, a second unlocking spring 24 and a sliding part 25, the clamping head 26, the second clamping head 27, the first force transmission spring 28, the second force transmission spring 29, the through hole 30, the pull wire 31, the shell 32, the limiting block 33, the tension spring 34, the basket body 35, the sliding hole 36, the lifting support 37, the arc cylinder body 38, the second limiting block 39, the arc rod 40, the channel 41, the force transmission rope 42, the rotating shaft 43, the passing hole 44, the gear 45, the rack 47, the stop rod 48, the second tension spring 49, the connecting plate 50 and the connecting spring 51.

Detailed Description

The invention is explained in further detail below with reference to the figures and the detailed description: