Water seepage control construction method for karst water-rich geological underground structure waterproof construction

A technology of underground structure and construction method, which is applied in the direction of infrastructure engineering, protection devices, buildings, etc., can solve the problems of affecting waterproof construction and poor waterproof effect, and achieve the effect of improving the waterproof performance of structures

Active Publication Date: 2013-11-27
CHINA RAILWAY 12TH BUREAU GRP +1
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing underground structure waterproofing construction is mainly based on the self-waterproofing of the structure, the waterproofing effect is poor, and the water pressure and wa

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 seepage control construction method for karst water-rich geological underground structure waterproof construction
  • Water seepage control construction method for karst water-rich geological underground structure waterproof construction
  • Water seepage control construction method for karst water-rich geological underground structure waterproof construction

Examples

Experimental program
Comparison scheme
Effect test

example

[0071] Wuyi Square Station is the station with the most complex geology, the largest engineering volume and the most strategic significance in Changsha Metro Line 2. The bedrock is moderately weathered limestone, with obvious corrosion phenomenon, well-developed karst caves of different sizes, and there is a large karst ditch with a depth of 104m in the middle of the right line of the station. Easy to disintegrate. The average water level of the station is 37.76m, the connectivity between the karst caves (dissolved gaps) at the bottom of the foundation pit is good, and the karst water has a large hydraulic connection with the pore water of the Quaternary loose rocks at the upper part, so the water at the bottom of the foundation pit is abundant, and It is pressure-bearing, and the designed water inflow of the foundation pit is 687.82m3 / d.

[0072] The underground station is designed according to the requirements of the first-class waterproof level, no water seepage is allowed...

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 relates to the field of basement water-rich geological structure waterproof construction, in particular to a water seepage control construction method for karst water-rich geological underground structure waterproof construction. The problem that waterproof construction is affected due to the fact that existing underground structure waterproof construction only focuses on construction self-waterproofing and is poor in waterproof effect and water pressure and waterways of foundation pit water seepage always exist. The water seepage control construction method includes the steps of water seepage control on baseboard waterproof construction, waterproofing and water draining of baseboards and continuous wall corners, water seepage control on wall waterproof construction, water seepage control on portal waterproof construction, and water seepage control on waterproof construction of expansion joints and post-cast strips. A water seepage control technique at positions such as the baseboards, station structure side walls, the expansion joints and the post-cast strips is realized, structure waterproof performance is improved, waterproof construction is ensured to be performed in a water-free environment, quality of waterproof construction and cement construction under the karst water-rich geological conditions is guaranteed, simplicity and convenience in technological operation are realized, and the water seepage control construction method is wide in application range, reliable in technology, high in superiority and convenient to popularize and apply.

Description

technical field [0001] The invention relates to the field of structural waterproof construction of base water-rich geology, in particular to a water seepage control construction method for waterproof construction of underground structures in karst water-rich geology. Background technique [0002] It is known that there are two sources of water leakage during the waterproof construction of underground structures, such as figure 1 As shown, one is that the water from the rock crevice, karst water or sand layer flows upwards from the bottom of the wall, commonly known as piping; the other is the leakage of the diaphragm wall, which is easy to seal and has no influence on the base water in actual construction. It's serious. like figure 2 As shown, the water pressure of the bottom water in the gap between the diaphragm wall and the structural wall will replace the water pressure of the seepage of the diaphragm wall, making the design waterproof system invalid, and the impact o...

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): E02D31/02
Inventor 杨天鸿安刘生雷军沈春盛赵香萍原军锋
Owner CHINA RAILWAY 12TH BUREAU GRP
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap