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Tunnel engineering pipe roof support construction ground surface settlement prediction method and device

A technology for surface subsidence and tunnel engineering, applied in prediction, data processing applications, instruments, etc., can solve the problems of less research on calculation methods, the interaction mechanism between tubes in the tube curtain group and the unclear law of surface subsidence, etc.

Active Publication Date: 2021-04-02
SOUTHWEST JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the calculation methods for the surface settlement caused by the single-pipe jacking construction of the pipe curtain include: empirical formula method, analytical method, and numerical simulation, etc. The mechanism and law of land subsidence are still unclear

Method used

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  • Tunnel engineering pipe roof support construction ground surface settlement prediction method and device
  • Tunnel engineering pipe roof support construction ground surface settlement prediction method and device
  • Tunnel engineering pipe roof support construction ground surface settlement prediction method and device

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Embodiment

[0079] figure 1 A flow chart of an embodiment of a method for predicting ground surface settlement in tunnel engineering pipe curtain support construction according to the present disclosure is shown. see figure 1 , the surface settlement prediction method of tunnel engineering pipe curtain support construction is used in the field of pipe curtain construction to predict the surface settlement of pipe curtain support construction.

[0080] In order to facilitate the understanding of the technical solution disclosed in the present invention, the construction of the pipe curtain is briefly described.

[0081] The pipe curtain construction is carried out by using the spiral excavation casing jacking technology. During the pipe curtain steel pipe jacking construction process, the excavation bit cuts the soil, the initial stress of the surrounding rock is released, and the soil in front of the excavation face and around it moves into the pipe, causing formation loss. . At the sa...

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Abstract

The invention provides a tunnel engineering pipe roof support construction ground surface settlement prediction method and device, and belongs to the field of pipe roof support. The tunnel engineeringpipe roof support construction surface settlement prediction method is based on the random medium theory and the Mindlin solution, which comprises the steps of establishing a spiral unearthed casingpipe jacking process single pipe jacking construction surface subsidence calculation method considering stratum loss and construction stress; introducing a group pipe construction surface subsidence correction function to form the pipe roofing group pipe construction surface subsidence calculation method. The calculation method is adopted to analyze surface subsidence changes and distribution rules caused by single-pipe jacking construction and pipe roofing group pipe construction, the prediction accuracy of surface subsidence of pipe roofing support construction is improved, and the prediction accuracy is provided for similar engineering design and construction reference.

Description

technical field [0001] The present application relates to the field of pipe curtain support, in particular to a method and device for predicting ground surface settlement during pipe curtain support construction in tunnel engineering. Background technique [0002] The construction of urban underground space is often restricted by ground traffic and buildings (structures), so it is difficult to carry out the traditional open-cut construction technology. As a new type of underground crossing method, the pipe curtain method can build large-span and large-section underground projects on the basis of small-scale pipe curtains, and can effectively control surface deformation. widely used in engineering. [0003] At present, the calculation methods for the surface settlement caused by the single-pipe jacking construction of the pipe curtain include: empirical formula method, analytical method, and numerical simulation, etc. The mechanism and law of surface subsidence are still un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04G06F119/14
CPCG06F30/20G06Q10/04G06F2119/14
Inventor 张艺腾王明年江帆肖泽荣于丽陈明跃张建郑传玲朱德武江勇涛
Owner SOUTHWEST JIAOTONG UNIV
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