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Filling method for filling shield tunnel gaps and shield tunneling machine for realizing method

A technology of shield tunneling and filling method, applied in the field of shield tunneling machines, can solve problems such as affecting the excavation of shield tunneling machines, failing to meet the required requirements, failing to reach the corresponding strength, etc., and achieve the effect of reducing surface subsidence

Active Publication Date: 2019-03-29
SHANDONG UNIV
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  • Claims
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Problems solved by technology

The filling material is usually added from the inside of the shield machine at the rear of the cutter head. However, when adding the filling material, if the timing of adding the filling material is wrong, or the performance does not meet the required requirements, the overall filling will be affected. As a result, if the filling material is filled from the inside of the shield machine to the position close to the cutter head at the front end of the shield machine, if the filling material is very strong, it will generate a lot of friction between the shield machine and the surrounding rock mass, which will affect the shield. The machine continues to dig forward. If the strength of the filling material is not high at the front end of the shield machine, as the shield machine moves forward, the initial filling material is in contact with the segment behind. If the corresponding strength cannot be reached at this time, Then the filling effect of this part will not reach the expected strength, and the risk of surface subsidence still exists

Method used

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  • Filling method for filling shield tunnel gaps and shield tunneling machine for realizing method
  • Filling method for filling shield tunnel gaps and shield tunneling machine for realizing method
  • Filling method for filling shield tunnel gaps and shield tunneling machine for realizing method

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[0022] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0023] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;

[0024] As introduced in the background technology, in the prior art, the filling material is usually added from ...

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Abstract

The invention discloses a filling method for filling shield tunnel gaps and a shielding tunneling machine for realizing the method. In the method, a filling material intermediate-speed coagulant is adopted and separated from other materials when filling the gaps in the periphery of the shield tunneling machine, in this way, it can be guaranteed that the front of the shield tunneling machine will not generate large frictional force with surrounding rock and affect advancing and excavating of a cutter head, and it also can be guaranteed that filling materials around shield segments have corresponding strength, and ground surface settlement is reduced.

Description

technical field [0001] The invention relates to a filling method for filling the gap of a shield tunnel and a shield machine for realizing the method. Background technique [0002] In recent years, with the rapid take-off of my country's economy, the transportation industry, which is closely related to people's lives, has also ushered in the spring of development. From surface roads to underground railways, people's travel has become more and more convenient. When using the shield method to build a tunnel, the cutterhead of the shield machine will often over-excavate when excavating at the front end, which will cause a certain gap between the front end of the shield machine and the segments behind it and the surrounding rock mass. If this part of the gap is not dealt with in time, it will reduce the overall strength of the tunnel and the surrounding rock mass, cause engineering problems such as surface subsidence, and seriously cause engineering accidents such as tunnel coll...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D11/10
CPCE21D9/0607E21D11/10
Inventor 李树忱马鹏飞周慧颖李阳支斌赵世森王鹏程万泽恩王曼灵
Owner SHANDONG UNIV
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