CN218479253U

CN218479253U - Prevent a section of thick bamboo pumped well system that protects in hole that collapses

Info

Publication number: CN218479253U
Application number: CN202221214483.1U
Authority: CN
Inventors: 诸毅; 张汝壮; 方兴斌; 姚振楠; 霍云剑; 钮恺之; 李明; 张涛; 曹正操
Original assignee: Shanghai Chengtou Shangjing Ecological Restoration Technology Co ltd
Current assignee: Shanghai Chengtou Shangjing Ecological Restoration Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2023-02-14
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a prevent a section of thick bamboo pumped well system that protects in hole that collapses, including the pumping pipe of opening the sieve that is used for extracting groundwater, open sieve pumping pipe periphery grafting and protect a section of thick bamboo, protect a section of thick bamboo and the coaxial setting of pumping pipe, connect with permanent fixed or non-permanent fixed mode between the two, form pumping pipe-protect a section of thick bamboo integrated device. The pumping well system with the integrated pumping pipe and the pipe protecting sleeve is constructed by grafting the pipe protecting sleeve on the periphery of the pumping pipe, and the pipe protecting sleeve can be kept in the well body according to actual requirements and can also be pulled out for recycling after filling. The pipe protecting sleeve can ensure filling of the filler, effectively avoid the problem of poor precipitation effect caused by uneven filling of the filler such as quartz stone and the like or low verticality of the pipe diameter due to hole collapse in the well building process, and improve the efficiency of underground water extraction.

Description

Prevent a section of thick bamboo pumped well system that protects in hole that collapses

Technical Field

The utility model relates to a groundwater is extracted and the restoration technique, specifically speaking is a novel prevent a section of thick bamboo pumped well system that protects of hole that collapses.

Background

Groundwater is an important component of water resources, and is one of the important water sources for agricultural irrigation, industrial and mining, and cities. In recent years, the problem of groundwater pollution is increasingly prominent, and serious threats and challenges are formed on human living health, food safety, drinking water safety, regional ecological environment, sustainable development of economic society and even social stability. The development of the underground water pollution control and repair work has great significance on the sustainable utilization of underground water resources.

The extraction technology is a commonly used technology for groundwater remediation, but the traditional pumping well system has certain limitations. Generally, after a well bore is drilled, a screened suction pipe is directly inserted into the well bore, and a filter material is filled in a gap between the suction pipe and the wall of the well bore. In the filling process, the filler is unevenly accumulated in the gap due to hole collapse, filler blockage and the like, the water pumping pipe is easily blocked in the groundwater extraction process, the water pumping efficiency is reduced, and the groundwater remediation effect is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem that the filling layer in the present pumped well system easily takes place to block up, provide a section of thick bamboo pumped well system that protects of hole prevents collapsing, improve the stability of the filling layer in the pumped well system.

The technical scheme of the utility model is that: the anti-collapse hole protection barrel water pumping well system comprises a screening water pumping pipe used for pumping underground water, a protection barrel is grafted on the periphery of the screening water pumping pipe, the protection barrel and the water pumping pipe are coaxially arranged and are connected in a permanent fixing or non-permanent fixing mode to form a water pumping pipe-protection barrel integrated device.

The screened drinking tube disclosed herein refers to a filtering tube with screen holes on the surface.

Preferably, the outer diameter of the pipe protecting sleeve is smaller than or equal to the diameter of an opening of the water pumping well on the ground, and the pipe protecting sleeve and the water pumping pipe are integrally placed into the drilled well hole.

Preferably, the material of the protecting pipe barrel is any one of steel, cast iron, PVC, UPVC, PP, PE, MPP and the like. The outer diameter of the casing pipe is 10cm-200cm, and the length of the casing pipe is 1m-100m. The outer diameter of the water pumping pipe is smaller than that of the protective tube, the outer diameter is 9-190 cm, and the length is 1-100 m;1cm ² The area of the pipe is larger than 0.1cm ² 。

Preferably, if the pipe protecting tube is a continuously used pipe protecting tube which needs to be left in a well body for continuous use after the well is built, the surface of the continuously used pipe protecting tube is screened, the continuously used pipe protecting tube is permanently fixed with the pumping well, and the fixed position is the bottom of the well or the top of the well; the underground water permeates into the filler through the sieve holes of the protecting pipe barrel and permeates into the water pumping pipe through the sieve holes of the water pumping pipe.

By open screening is herein meant the formation of screen holes for groundwater collection.

If the pipe protecting tube is a reusable pipe protecting tube which needs to be pulled out for recycling after the well is built, the reusable pipe protecting tube and the pumping well are fixed in a detachable mode, and the fixed position is the top of the well.

Preferably, the permanent fixing mode of the continuous-use protective pipe barrel and the pumping well is hot melting, welding or gluing and the like.

Preferably, the surface of the continuous-use protecting tube barrel is opened with a sieve of 1cm ² The area of the pipe is larger than 0.1cm ² 。

Preferably, the water pumping device further comprises a filler, the filler is filled in a gap part between the water pumping pipe and the pipe protecting barrel, bentonite is filled in the top of the gap, and finally, cement is used for capping. The bentonite disclosed herein serves to prevent surface water from penetrating the dewatering well.

Preferably, the filler can be filled after the pumping pipe-protective pipe cylinder integrated device is placed in the pumping well; or the filling material can be filled after the bottom of the pumping pipe-protecting pipe integrated device is closed, and then the pumping pipe-protecting pipe integrated device is put into a well hole as a whole.

Preferably, the filler is one or a combination of more than two of materials such as sand, stainless steel, ceramsite, plastic and the like.

The utility model has the advantages that:

1. the pumping well system with the integrated pumping pipe and the pipe protecting sleeve is constructed by grafting the pipe protecting sleeve on the periphery of the pumping pipe, and the pipe protecting sleeve can be kept in the well body according to actual requirements and can also be pulled out for recycling after filling.

2. The pipe protecting sleeve can ensure filling of the filler, effectively avoid the problem of poor precipitation effect caused by uneven filling of the filler such as quartz stone and the like or low verticality of the pipe diameter due to hole collapse in the well building process, and improve the efficiency of underground water extraction.

Drawings

FIG. 1 is a schematic diagram of a bore collapse resistant casing pumping well system;

wherein:

1-pumping pipe 2-protecting pipe barrel 3-filling

4-bentonite 5-sieve mesh 6-ground

7-groundwater 8-cement

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The protective tube pumping well system for preventing hole collapse is shown in figure 1 and comprises a complete set of devices for welding a pumping tube 1 and a protective tube 2 together; sieving the surfaces of the water pumping pipe 1 and the pipe protecting cylinder 2, wherein the sieving position is 1m-6.5m underground; backfilling quartz sand 3 into a gap between the water pumping pipe 1 and the pipe protecting cylinder 2, wherein the backfilling position is a part containing a sieve pore 5; backfilling the bentonite 4 into the gap, wherein the filling position is positioned at the part above the sieve pore 5; the bottom of the well is bottomed with cement 8 and the well is topped.

In the device shown in fig. 1, specifically, after the well hole is drilled, the screened water pumping pipe 1-protecting pipe barrel 2 integrated device is driven into the well hole at the same time, generally, the part of the water pumping pipe 1 exposed out of the ground 6 is about 0.3m, and the part of the water pumping pipe 1 and the protecting pipe barrel 2 in the ground is about 6m.

In the device of fig. 1, the bottom layer of the suction pipe 1 is filled with cement 8.

In the device shown in FIG. 1, a quartz sand filter material 3 is backfilled in a gap between a pumping pipe 1 and a pipe protecting cylinder 2, wherein the backfilling position is a part containing a sieve pore 5; and backfilling the gaps with bentonite 4, wherein the filling position is positioned at the part above the sieve holes 5.

In the device of fig. 1, specifically, groundwater 7 enters the coarse sand filling layer 3 through the sieve holes 5 of the protecting pipe barrel 2 and then enters the pumping pipe 1 through the sieve holes 5 of the pumping pipe 1.

In the device of fig. 1, specifically, the groundwater 7 in the pumping pipe 1 is extracted by a submersible pump, and the groundwater 7 is treated ex situ.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, and that various changes and modifications may be made, which are within the spirit of the invention and the scope of the appended claims.

Claims

1. The utility model provides a prevent a section of thick bamboo pumped well system that protects in hole that collapses which characterized in that: including opening sieve drinking-water pipe (1) that is used for extracting groundwater, open sieve drinking-water pipe (1) periphery grafting protecting tube barrel (2), protecting tube barrel and drinking-water pipe coaxial setting connect with permanent fixed or non-permanent fixed mode between the two, form drinking-water pipe-protecting tube barrel integrated device.

2. A tube protecting pumping well system for preventing collapse of holes according to claim 1, which is characterized in that: the outer diameter of the pipe protecting barrel (2) is smaller than or equal to the diameter of an opening of the water pumping well on the ground, and the pipe protecting barrel (2) and the water pumping pipe (1) are placed into the drilled well hole as a whole.

3. The cylindrical casing water pumping well system for preventing the collapse of the hole as claimed in claim 2, wherein: the material of the protecting pipe barrel (2) is any one of steel, cast iron, PVC, UPVC, PP, PE and MPP.

4. A tube protecting pumping well system for preventing collapse of holes according to claim 1, which is characterized in that: if the pipe protecting tube (2) is a continuously used pipe protecting tube which needs to be left in a well body for continuous use after the well is built, the surface of the continuously used pipe protecting tube is screened, the continuously used pipe protecting tube is permanently fixed with a pumping well, and the fixed position is the bottom of the well or the top of the well;

if the pipe protecting tube (2) is a reusable pipe protecting tube which needs to be pulled out for reuse after the well is built, the reusable pipe protecting tube and the pumping well are fixed in a detachable mode, and the fixed position is the top of the well.

5. The hole collapse prevention casing suction well system according to claim 4, wherein: the permanent fixing mode of the continuous use pipe protecting sleeve and the pumping well is hot melting, welding or gluing.

6. The hole collapse prevention casing suction well system according to claim 4, wherein: the surface sieve opening body of the continuous use protection tube barrel is 1cm ² The area of the pipe is provided with sieve pores with the area larger than 0.1cm ² 。

7. A tube protecting pumping well system for preventing collapse of holes according to claim 1, which is characterized in that: still include filler (3), filler (3) are filled in the space part between drinking-water pipe and the pillar section of thick bamboo, and bentonite (4) are filled in the top in space, and at last with cement capping.

8. A casing pumping well system for preventing collapse of hole according to claim 7, wherein: the filler (3) can be filled after the water pumping pipe-pipe protecting cylinder integrated device is placed in the water pumping well; or the filling material (3) can be filled after the bottom of the pumping pipe-protecting pipe integrated device is closed, and then the pumping pipe-protecting pipe integrated device is put into a well hole as a whole.

9. A casing pumping well system for preventing collapse of hole according to claim 7, wherein: the filler (3) is one of sandstone, stainless steel, ceramsite and plastic materials.