A risk warning method for TBM jamming in broken formations based on torsion-push ratio

A risk warning and jamming technology, which is applied in the fields of earthwork drilling, instrumentation, data processing, etc., can solve the problems of delay in construction period, decreased driving speed, poor adaptability, etc., so as to reduce the impact, improve the construction efficiency, and reduce the risk of being jammed. Effect

Active Publication Date: 2022-04-05
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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Problems solved by technology

However, what is incompatible with it is that TBM has poor adaptability when constructing in broken ground, and the excavation speed is significantly reduced. Once the machine is stuck, it will lead to serious delays in the construction period. Therefore, how to predict the risk of TBM stuck in advance and take timely measures, It is of great significance to improve the adaptability of TBM in fractured formation

Method used

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  • A risk warning method for TBM jamming in broken formations based on torsion-push ratio
  • A risk warning method for TBM jamming in broken formations based on torsion-push ratio
  • A risk warning method for TBM jamming in broken formations based on torsion-push ratio

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Embodiment 1

[0030] Embodiment 1: A method for early warning of TBM jamming risk in broken formations based on torsion-push ratio, comprising the following steps:

[0031] S1, collect surrounding rock state data through the geological sketch of the surrounding rock exposed shield;

[0032] The collected surrounding rock state data includes the excavation mileage, the position of the surrounding rock collapse cavity on the tunnel section, the range of the collapse cavity, and the depth of the collapse cavity, as well as the type and spacing of the steel arch frame used to support the collapse cavity, and the type of steel bar row used. and spacing, the length and spacing of bolts used; the surrounding rock state diagram of a certain section of a tunnel is as follows figure 2 shown.

[0033] S2, obtaining TBM excavation parameter data through the TBM data acquisition system;

[0034] The acquired excavation parameter data includes but not limited to excavation mileage, thrust, torque, adv...

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Abstract

The invention discloses a method for early warning of TBM jamming risk in broken strata based on twist-push ratio, the steps are as follows: S1, collect surrounding rock state data through exposing shield surrounding rock geological sketch; S2, obtain TBM through TBM data acquisition system Excavation parameter data; S3, establishing the corresponding relationship between the torque-thrust ratio and the state of the surrounding rock; S4, obtaining the tunneling status data through the TBM excavation report recorded by the main driver; S5, establishing the jamming risk evaluation standard based on the torque-thrust ratio; S6, passing TBM real-time excavation parameters, according to the evaluation standard, judge the risk of TBM jamming and give real-time early warning. The present invention can timely and effectively grasp the state of the surrounding rock of the tunnel, the state of TBM excavation, and the risk of machine jams that may be encountered during TBM excavation, so that construction personnel can timely grasp the information of various aspects, and take preventive measures for TBM machine jams in time, which can effectively reduce the risk of TBM jamming. Card risk, improve TBM construction efficiency.

Description

technical field [0001] The invention relates to the technical field of construction control of full-face tunnel boring machines, in particular to a method for early warning of TBM jamming risk in broken strata based on torsion-push ratio. Background technique [0002] As an important tool for tunnel construction, full-face rock tunnel boring machine (TBM) has the advantages of safe and fast construction. TBM method has become the main method of tunnel construction. However, what is incompatible with it is that TBM has poor adaptability when constructing in broken ground, and the excavation speed is significantly reduced. Once the machine is stuck, it will lead to serious delays in the construction period. Therefore, how to predict the risk of TBM stuck in advance and take timely measures, It is of great significance to improve the adaptability of TBM in fractured formation. Contents of the invention [0003] The technical problem to be solved by the present invention is t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06E21F17/18E21D9/087
CPCG06Q10/0635E21D9/087E21D9/003E21F17/18
Inventor 孙振川杨延栋周建军陈馈李凤远韩伟锋秦银平赵海雷潘东江寇晓林
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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