Double-shield TBM shield body jamming prediction method and system

A technology of shield jamming and prediction method, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of time, material cost loss, equipment shutdown, and less research on jamming early warning, so as to avoid jamming. The effects of a machine accident

Active Publication Date: 2018-04-10
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology

Once the machine is stuck, it will cause huge loss of time and material costs
For example, in a water diversion project, the double-shield TBM jammed once and caused nearly two weeks of equipment shutdown, resulting in huge lo

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  • Double-shield TBM shield body jamming prediction method and system
  • Double-shield TBM shield body jamming prediction method and system
  • Double-shield TBM shield body jamming prediction method and system

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Such as figure 1 As shown, a double-shield TBM shield jamming prediction method, the steps are as follows:

[0036] Step 1: Obtain the tunneling parameters in real time through the on-site TBM host computer. The tunneling parameters include single-pole thrust and advancing speed.

[0037] Step 2: Select the first n tunneling parameters at the current moment, single-pole thrust F 1 , F 2 ,...,F n , propulsion speed V 1 , V 2 ,...,V n , where F n ...

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Abstract

The invention provides a double-shield TBM shield body jamming prediction method and system. The method comprises the following steps that tunneling parameters are obtained in real time through an on-site TBM upper computer; the single-tool thrust and propelling speeds of the tunneling parameters of the first n parameters at the current time are selected; through a sliding average window, the sliding averages of the n single-tool thrust and propelling speeds are obtained correspondingly; through a double-curve tangent function, real-time characteristic indexes are obtained, and each link of accumulated characteristic parameters are calculated through accumulating summation; accumulated characteristic indexes are compared with preset alarm warning values, and if the accumulated characteristic indexes are larger than the preset alarm warning values, information is sent to the TBM upper computer for alarm; and a pre-warning system comprises a data obtaining unit, a model calculating unit,a pre-warning display unit and a jamming alarm module. According to the double-shield TBM shield body jamming prediction method and system, jamming indexes are obtained through the tunneling parameters, real-time alarm of double-shield TBM jamming can be achieved, and the loss, caused by the jamming accident, of manpower, financial resources and materials is avoided.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation equipment construction, in particular to a double-shield TBM shield jamming prediction method and system. Background technique [0002] The jamming problem of double-shield TBM in weak surrounding rock and fractured zone formation is a key factor restricting the construction efficiency of double-shield TBM. Once a jam occurs, it will cause huge loss of time and material costs. For example, in a water diversion project, the dual-shield TBM jammed once and caused equipment shutdown for nearly two weeks, resulting in huge losses. The current research mostly stays on how to get out of trouble after a machine jam occurs, but there is little research on how to carry out early warning of machine jams, and no relevant methods or theories have emerged yet. If an early warning can be issued to avoid the occurrence of stuck machines, it will be more practical for construction than spending a lot ...

Claims

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Application Information

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IPC IPC(8): E21D9/087
CPCE21D9/0879
Inventor 荆留杰李鹏宇徐受天杨晨陈帅
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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