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A Ribbed Rainwater Well Pipe

A technology of dewatering well pipes and ribs, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of affecting water yield efficiency, sand filter layer clogging, and reducing permeability, etc., to achieve simple structure and reduce filter material costs , Improve the effect of water permeability

Active Publication Date: 2018-05-11
SHANGHAI CHANGKAI GEOTECHN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual construction process, continuous pumping and dewatering often leads to the sand filter layer being blocked by clay and reducing permeability, which affects the efficiency of water discharge and brings great inconvenience to continuous pumping and dewatering construction.
Due to the increase of the process of sand filter layer, the cost of construction has also increased

Method used

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  • A Ribbed Rainwater Well Pipe

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Effect test

Embodiment 1

[0017] Embodiment 1: as figure 1 As shown, in order to solve the defect problem that the continuous precipitation of the existing downwater well pipe will reduce the water permeability, this embodiment provides a ribbed downwater well pipe, the main body of which is a plastic pipe. The filter tube 1 has a number of water permeable holes 2 evenly distributed on the filter tube 1, and a circle of grid-like ribs 3 is wrapped around the outer circumference of the filter tube 1, and a layer of filter layer 4 is wrapped around the outer circumference of the grid-like ribs 3, The filter layer 4 can be one or more combinations of filter membrane, filter screen, permeable cloth, and sand bag. In this embodiment, the filter layer 4 is specifically a filter membrane; the grid-like ribs 3 can support the filter layer evenly 4. Avoid direct contact between the filter layer 4 and the pipe wall, while the filter layer 4 can prevent the fine particles in the soil from passing through, so as t...

Embodiment 2

[0022] Embodiment 2: This embodiment specifically relates to a ribbed dewatering well pipe. The main body of the dewatering well pipe is a filter pipe 1 made of a plastic pipe. A number of permeable holes 2 are evenly distributed on the filter pipe 1. The outer circumference of the pipe 1 is wrapped with a filter layer 4 with grid-like ribs 3. The filter layer 4 can be one of filter membranes, filter screens, water-permeable cloths, and sand bags. It should be noted that the grid-like ribs 3 and the filter layer 4 adopt an integrated structure, and the grid-like ribs 3 can support the filter layer 4 evenly, avoiding direct contact between the filter layer 4 and the pipe wall, and the filter layer 4 can prevent fine particles in the soil from passing through , in order to avoid the flow of soil; in order to increase the water permeability, a filter cap 5 with a permeable gap is also installed at the bottom of the filter tube 1, and the periphery of the filter cap 5 is wrapped wi...

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Abstract

The invention discloses a ribbed dewatering well tube. The ribbed dewatering well tube is characterized by comprising a filtering pipe with water-permeable holes, and the outer layer of the filtering pipe is sequentially wrapped with a ribbed plate and a filtering layer. The ribbed dewatering well tube has the advantages that the dewatering well tube is simple in structure and convenient to construct; the water permeability of the well tube is not lowered due to continuous dewatering at the presence of a sand filtering layer. At the absence of the sand filtering layer, the filtering material cost and the procedure of filtering material filling can be reduced, and the water permeability of the well tube can be improved.

Description

technical field [0001] The invention belongs to the field of geotechnical and environmental technologies, and in particular relates to a ribbed downwater well pipe. Background technique [0002] Generally, in the process of foundation pit engineering or in-situ restoration of contaminated soil, it is often necessary to take dewatering measures for the groundwater in the construction area first, that is, arrange multiple rows of dewatering wells within the scope of foundation pit or contaminated soil treatment, and pump a certain amount of groundwater . [0003] The traditional technology is to evenly arrange permeable holes on the wall of the plastic pipe or steel pipe, wrap the filter screen around the pipe, and fill the sand filter layer between the well pipe and the borehole wall. In the actual construction process, continuous pumping and dewatering often causes the sand filter layer to be blocked by clay and reduce permeability, thereby affecting the efficiency of water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/10
CPCE02D3/103
Inventor 顾国荣辛伟郭星宇李韬王蓉王克文陈晖张晓晖沈婷婷成小程
Owner SHANGHAI CHANGKAI GEOTECHN ENG