Check patentability & draft patents in minutes with Patsnap Eureka AI!

Water-lowering device of soft-soil foundation pit and using method of water-lowering device

A technology for pumping device and foundation pit, which is applied in the fields of traffic engineering, environmental engineering, and civil engineering, can solve the problems that the precipitation method cannot well guarantee the precipitation effect, and there are many phenomena of water-carrying operations in the excavation of the foundation pit, so as to meet the needs of large-scale , the effect of strong adaptability

Active Publication Date: 2014-03-05
SOUTHEAST UNIV
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: Aiming at the deficiencies of the prior art, the present invention proposes a dewatering device and a dewatering method for soft soil foundation pits to solve the problem that the existing dewatering methods cannot ensure the dewatering effect well, resulting in many excavation of foundation pits with water question

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
  • Water-lowering device of soft-soil foundation pit and using method of water-lowering device
  • Water-lowering device of soft-soil foundation pit and using method of water-lowering device
  • Water-lowering device of soft-soil foundation pit and using method of water-lowering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further explained below in conjunction with the accompanying drawings.

[0022] A dewatering device for a soft soil foundation pit, comprising a well pipe 1, a pumping device, and a high-pressure injection device.

[0023] The pumping device includes a water pump controller 8 and a submersible pump 6, the water pump controller 8 is equipped with a pumping control valve 9, the submersible pump 6 is placed in the inner cavity of the well pipe 1 near the lower port, and the submersible pump 6 passes through the The water pipe 7 is connected with the water pump controller 6 . A sedimentation pipe 4 is arranged in the well pipe 1 below the submersible pump 6 , and a filter 3 is arranged in the well pipe 1 above the position of the submersible pump 6 . The outer wall of the well pipe 1 is provided with a longitudinal groove 21 in the axial direction, and the outer wall of the well pipe 1 is provided with an annular groove 22 in the circumferenti...

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 water-lowering device of a soft-soil foundation pit and a using method of the water-lowering device. The water-lowering device comprises a well casing, a water pumping device and a high-pressure jet device. The high-pressure jet device comprises a compressor, a conveying pipe and a jet ring. The conveying pipe is axially arranged along the outer side wall of the well casing, and the end, located on an upper opening of the well casing, of the conveying pipe is connected to the compressor. The jet ring is arranged on the outer side wall of the well casing in a sleeved mode, communicated with the conveying pipe and provided with jet holes. The structure of the conventional water-lowering well casing is improved, the high-pressure jet device with the soil body splitting function is additionally arranged, a target layer with the requirement for water lowering is subject to air pressure or water pressure splitting, a net-shaped fracture channel is formed, drainage of a soft-soil layer low in permeability is accelerated, the water lowering influence radius, water drainage capacity and drainage speed of the well casing are increased, and therefore the purpose of quickly and effectively reducing the underground water level of the soft-soil land layer is achieved.

Description

technical field [0001] The invention relates to the fields of civil engineering, traffic engineering and environmental engineering, in particular to a dewatering device and a dewatering method for soft soil foundation pits. Background technique [0002] In the coastal areas along the river with the most developed economy in my country, in recent years, the construction of high-rise buildings, the construction of large-scale municipal facilities, and the development of a large number of underground spaces such as subway tunnels have promoted the rapid development of foundation pit engineering. area. Due to the characteristics of high water content and poor permeability of soft soil, there are generally difficulties in the process of reducing groundwater in soft soil, such as small water yield, small drawdown, small precipitation influence radius, and low precipitation efficiency. The increase of precipitation, the significant decline in precipitation efficiency, and the long ...

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): E02D19/10
Inventor 童立元刘松玉余巍王占生张国柱
Owner SOUTHEAST UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com