Method for breaking underground obstacle pile

A technology of barrier piles and pile cores, applied in sheet pile wall, foundation structure repair, construction, etc., can solve problems such as economical efficiency and safety need to be improved, and increase the amount of removal engineering and engineering difficulty.

Inactive Publication Date: 2020-06-26
GUANGZHOU METRO DESIGN & RES INST
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also has obvious defects. It is necessary to add a cross channel and a manually excavated pile with a pile diameter larger than the original pile. , and th

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
  • Method for breaking underground obstacle pile
  • Method for breaking underground obstacle pile
  • Method for breaking underground obstacle pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In this embodiment, the above-ground building 11 is a bridge, and there is an obstacle pile 1 on the route of shield tunneling, and the stratum structure is a medium-density pebble stratum, and the method is used to remove the obstacle pile 1 through the following steps:

[0052] In the step of constructing the underpinning cap, the foundation pit 10 is dug around the existing cap 3, and the underpinning cap 4 is constructed under the existing cap 3 in the foundation pit 10, and the length of the underpinning cap 4 is longer than that of the existing cap. The length of the platform 3 is 7m, and the width of the underpinning platform 4 is greater than the width of the existing platform 3 by 1m. After the construction of the underpinning cap 4 is completed, the underpinning pile 2 is constructed under the underpinning cap 4, so that the underpinning pile 2 can provide support for the underpinning cap 4, and then provide support for the bridge through the existing cap 3. T...

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
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides a method for breaking an underground obstacle pile. The method comprises the following steps that a foundation pit is dug, and the foundation pit is dug around the upper end ofthe obstacle pile; a pile head is chiseled away, and the pile head of the obstacle pile is chiseled away; a pile core is broken, the pile core of the obstacle pile is broken, and the pile side wall ofthe obstacle pile is reserved; the pile side wall is broken, and the pile side wall is broken; pile backfilling is carried out, and the pile core is filled; and the foundation pit is backfilled, andthe foundation pit is filled. The method is suitable for tunnel obstacle piles, other pile foundation engineering, municipal engineering and the like. The method has the advantages of an existing manual hole digging pile breaking technology, the defect that a supporting structure is newly added in an existing manual hole digging breaking scheme is overcome, and the breaking engineering amount is reduced; the construction procedures in the prior art are optimized, transverse channel horse head breaking construction is avoided, and the construction risk is reduced; and when the method is appliedto breaking the tunnel obstacle pile, shield tunneling is not affected by breaking the obstacle pile before shield construction, and the requirement for a construction site is low.

Description

technical field [0001] The invention relates to pile foundation engineering, municipal engineering and the like, in particular to a method for removing underground obstacle piles. Background technique [0002] In recent years, with the continuous improvement of urban subway lines and municipal pipe networks, the construction environment of underground engineering projects has become increasingly complex. When the shield tunnel intersects with buildings such as viaducts on the ground, it will inevitably be affected by the pile foundation of the building. At this time, in addition to the need to reinforce existing buildings and structures, it is necessary to deal with pile foundations within the scope of subway construction. There is also the same problem in the removal of obstacle piles such as other pile foundation works and municipal engineering. [0003] At present, there are four commonly used methods of breaking piles in China: 1) Use the cutter head of the shield mach...

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): E02D9/00E02D37/00E02D27/48E02D5/36E02D7/18
CPCE02D5/36E02D7/18E02D9/00E02D27/48E02D37/00E02D2250/0023
Inventor 郭洋洋李坤哲程韬陈健蒲东均张冀曹亚博
Owner GUANGZHOU METRO DESIGN & RES INST
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