Experiment device and method for simulating influence of synchronous grouting of shield tunnel on stratum settlement

A technology of simultaneous grouting and test device, applied in the field of geotechnical engineering

Active Publication Date: 2016-12-14
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are few reports on the model test research on the mechanism of synchronous grouting in shield tunnels on ground settlement at home and abroad.

Method used

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  • Experiment device and method for simulating influence of synchronous grouting of shield tunnel on stratum settlement
  • Experiment device and method for simulating influence of synchronous grouting of shield tunnel on stratum settlement

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Experimental program
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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0048] Such as figure 1As shown, a test device for simulating the influence of synchronous grouting in shield tunnels on stratum settlement, the device includes: test box 1, tunnel model 2, shield machine model 3, test soil 4, water outlet 5, ball valve 6 , plexiglass cover plate 7, synchronous grouting slurry 8, fixing bolt 9, displacement measurement component 10, displacement measurement component mounting bracket 11, sealing ring 12, electric winch 13, steel wire rope 14, air compressor 15, sl...

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Abstract

The invention provides an experiment device and method for simulating influence of synchronous grouting of a shield tunnel on stratum settlement. The experiment device comprises an experiment box, a tunnel model, a shield tunneling machine model, a fixed cover plate, a displacement measuring part, a displacement measuring part mounting support, horizontal traction equipment, air pressure supply equipment, an air pressure measuring part and a grout container. The method is based on the device. By the experiment device and method, a mechanism of influence of synchronous grouting of the shield tunnel on settlement of surrounding strata under conditions of different grouting amounts, different grouting pressures and different grouting positions can be simulated accurately, and an experiment platform is provided for theoretical study on the mechanism of control of synchronous grouting of the shield tunnel on stratum settlement.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a model test device and method for simulating the influence of synchronous grouting of a shield tunnel on stratum settlement. Background technique [0002] In the past two decades, with the increasing maturity of shield tunneling technology, shield tunneling method construction technology has been widely used in tunnel construction. During the construction of the shield method, while the shield machine continues to move forward, the shield tail gap is also continuously formed, which requires synchronous grouting to fill in time when the shield tail gap is formed, so as to prevent excessive subsidence of the surrounding strata from causing The surface buildings and adjacent structures deformed too much and were damaged. However, the amount of synchronous grouting, the size of the grouting pressure, and the grouting position will have different effects on the defo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 叶冠林韩磊杨同帅
Owner SHANGHAI JIAO TONG UNIV
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