Foundation pit side wall frost heaving prevention method

A technology for preventing frost heave and foundation pit, applied in excavation, infrastructure engineering, construction, etc., can solve the problems of increasing internal force of supporting structure, deformation and damage, damage to side wall protective surface layer, etc., to achieve the effect of preventing frost heave

Pending Publication Date: 2020-06-26
辽宁省建筑设计研究院岩土工程有限责任公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the construction foundation pit project in the seasonal frozen soil area, for the foundation pit project that needs to be used in winter, because the foundation pit cannot be backfilled, the side wall of the foundation pit is exposed to the low temperature environment outside, if the soil on the side wall of the foundation pit has frozen In the process of overwintering the foundation pit, the frost heaving of t

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
  • Foundation pit side wall frost heaving prevention method
  • Foundation pit side wall frost heaving prevention method
  • Foundation pit side wall frost heaving prevention method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0020] Such as Figure 1-3 As shown, the present invention is a foundation pit with a side wall anti-frost heaving layout, using a Ф50mm metal pipe as the drain hole drain pipe, the pipe length is 300mm, and the drain holes are arranged in a plum blossom shape on the pipe body, the hole diameter is 10mm, the hole spacing is 50mm, and the outside is wrapped Filter gauze. The drain hole is installed on the side wall of the foundation pit according to the horizontal and vertical spacing of 1.5m-2.5m, and connected in series to the cathode of the power supply; insert a metal rod at a position twice the local standard freezing depth from the side wall of the foundation pit outside the drain hole , the metal rod is connected to the anode of the power supply.

[0021] Waterproof geotextiles are laid on the surface of the upper part of the side wall of the fo...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Hole spacingaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a foundation pit side wall frost heaving prevention method, and belongs to the technical field of building construction. The side wall of a foundation pit is provided with a water draining hole, the water draining hole is a metal pipe draining pipe, a water draining hole is formed in the metal pipe, the outer portion of the segment, inserted into the soil on the side wall of the foundation pit, of the metal pipe is wrapped with water filter gauze, the metal pipe is connected with a power cathode, a metal bar is connected with a power anode, the metal bar corresponds tothe metal pipe on the same side, the ground surface of the position, between the metal bar and the side wall of the foundation pit, of the upper portion of the foundation pit is provided with waterproof geotechnical cloth, the metal pipe is connected with the power cathode, the metal bar is connected with the power anode, the metal pipe and the metal bar are correspondingly mounted, water in soilcan be smoothly drained, and through a method of reducing the water containing amount in the soil, soil frost heaving damage to the side wall of the foundation pit can be prevented.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to a method for preventing frost heave on the side wall of a foundation pit. Background technique [0002] In the construction foundation pit project in the seasonal frozen soil area, for the foundation pit project that needs to be used in winter, because the foundation pit cannot be backfilled, the side wall of the foundation pit is exposed to the low temperature environment outside, if the soil on the side wall of the foundation pit has frozen In the process of overwintering the foundation pit, the frost heaving of the soil on the side wall of the foundation pit will increase the horizontal load on the support structure, which will cause the danger of internal force increase, deformation and damage of the support structure; for dredging Frost heave will easily cause the soil between the piles to fall off, and even damage the protective surface layer of the side wall,...

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): E02D17/02E02D19/06
CPCE02D17/02E02D19/06
Inventor 刘旭
Owner 辽宁省建筑设计研究院岩土工程有限责任公司
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