A ground dewatering and drainage method for well point pumping to control group pipe siphon

A technology of controlling group and siphon, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of long time to complete consolidation, long time, high cost, etc., achieve remarkable energy saving effect, solve drainage problems, and low project cost Effect

Inactive Publication Date: 2011-12-28
ZHEJIANG UNIV
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, drainage consolidation methods are commonly used to strengthen soft soil foundations: loading preloading method, setting sand wells or drainage belts on soft foundations and laying sand cushions, and applying surcharge preloading on the cushions. The disadvantages are: The drainage speed of soft soil is slow and there is lateral displacement extrusion. It is necessary to control the loading rate, and it takes a long time to complete the consolidation. After reaching the req

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A ground dewatering and drainage method for well point pumping to control group pipe siphon
  • A ground dewatering and drainage method for well point pumping to control group pipe siphon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The principle of the invention is to use the siphon to make the underground water in different parts of the foundation soil flow into the pumping well in a concentrated manner, and uniformly pump the underground water to the surface through the drainage pump. Specifically, first insert a siphon drainage pipe into the foundation soil where the groundwater level is to be lowered, and insert a water-permeable layer around the drainage pipe of the foundation section, so that the groundwater in the foundation soil can seep down to the entrance of the siphon drainage pipe along the outer wall of the siphon drainage pipe , put the other end of the drainage pipe into the pumping well, use the drainage pump with water level control system to lower the groundwater level in the pumping well, make the groundwater in the foundation soil enter the pumping well through the siphon, and then use the drainage pump to pump the water in the pumping well to On the ground surface, the groundw...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a foundation dewatering and drainage method for pumping water at well points to control group pipe siphons. Firstly, a siphon drainage pipe is inserted into the foundation soil where the groundwater level is to be lowered. The groundwater can seep down to the entrance of the siphon drainage pipe along the outer wall of the siphon drainage pipe. The other end of the drainage pipe is put into the pumping well, and the groundwater level in the pumping well is lowered by the drainage pump with a water level control system, so that the groundwater in the foundation soil enters through the siphon pipe. The water in the pumping well is pumped and drained to the surface by the drainage pump to realize the groundwater level drop of the foundation soil; the invention uses the siphon drainage pipe to concentrate the groundwater in various parts of the foundation soil into the pumping well; the siphon drainage only needs to be controlled The groundwater level difference and different flows can maintain the siphon process, which can effectively solve the drainage problem of low-permeability soft soil foundation; the energy-saving effect is remarkable, the project cost is low, and the project implementation process is easy to operate.

Description

technical field [0001] The invention relates to a drainage technology for lowering the groundwater level of foundation soil, in particular to a foundation drainage method suitable for soft soil foundation precipitation consolidation and foundation pit drainage engineering. Background technique [0002] Soft soil foundations have high natural water content, low strength, high compressibility, poor water permeability, and low foundation bearing capacity. Reinforcement treatment is required before engineering construction can be carried out. Accelerating the consolidation of soft soil through drainage measures is the key to improving the strength of soft soil foundations. important technical measures. When excavating a foundation pit in a soil layer with a high groundwater level, it is often necessary to ensure dry construction in the pit, so it is necessary to reduce the water level in the foundation pit, resulting in a water level difference inside and outside the pit, which ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02D3/10E02D19/10
Inventor 孙红月尚岳全
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products