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Multi-mode tunnel boring machine (TBM) earth pressure monitoring system and working method thereof

A monitoring system and roadheader technology, which is applied in earthwork drilling, mining equipment, tunnels, etc., can solve the problems of sensors affecting production progress, and achieve the effect of reducing downtime costs and improving production progress

Active Publication Date: 2021-08-27
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Aiming at the technical problem that different sensors need to be processed differently to affect the production progress for each mode conversion under different working conditions of the current multi-mode roadheader, the present invention proposes A multi-mode roadheader earth pressure monitoring system and its working method

Method used

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  • Multi-mode tunnel boring machine (TBM) earth pressure monitoring system and working method thereof
  • Multi-mode tunnel boring machine (TBM) earth pressure monitoring system and working method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 As shown, a multi-mode roadheader earth pressure monitoring system includes a front bulkhead 1 and a rear bulkhead 2. At least one set of first control valves 22 are installed on the front bulkhead 1, and the first control valves are manual ball valves. The manual ball valve can be controlled manually or remotely through the controller. A relay joint 21 is installed on the upper part of the first control valve 22. A pressure sensor 20 is installed on the upper part of the relay joint 21. The relay joint 21 passes through the medium injection channel 10 respectively. It is connected with the bentonite pipeline 6 and the flushing water pipeline 5. The upper and lower ports of the relay joint are respectively connected to the first control valve and used to install the pressure sensor. The other port of the relay joint injects water / bentonite into the sensor through the medium injection channel. 20 end, and can be injected into the excavation bin ...

Embodiment 2

[0026] Embodiment 2: multi-mode roadheader earth pressure monitoring system, the actual configuration number of control valves can be appropriately increased according to the number of sensors required by different models, the number of settings for the first control valve 22 is two groups, the first two groups The relay joint 21 on the control valve 22 is respectively connected with the bentonite pipeline 6 and the flushing water pipeline 5 through the medium injection channel 10 arranged in parallel. The relay joint on the valve injects the medium through the medium injection channel, thereby realizing the multi-mode injection pipeline of the dual-channel roadheader and improving the accuracy of the earth pressure monitoring parameters.

Embodiment 3

[0027] Embodiment 3: A working method of a multi-mode roadheader earth pressure monitoring system, comprising the following steps:

[0028] S1. Install the first control valve 22 on the front bulkhead 1, install the relay joint 21 between the first control valve 22 and the pressure sensor 20, and use the pressure sensor 20 to monitor the earth pressure of the roadheader in real-time in the earth pressure mode. The sensor The connecting wire is connected to the controller 3 through the sensor wiring channel 11 through the bulkhead joint 9 of the rear bulkhead 2, and the other interface of the relay joint 21 injects flushing water or bentonite into the end of the pressure sensor 20 through the medium injection channel 10, And through the first control valve 22 through the front partition 1 into the excavation chamber;

[0029] S2. Earth pressure mode: the controller controls the on-off valve 8 connected to the bentonite pipeline to open at regular intervals, and through the pump...

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Abstract

The invention provides a multi-mode tunnel boring machine (TBM) earth pressure monitoring system and a working method thereof. The system comprises a front partition plate and a rear partition plate, at least one group of first control valves are mounted on the front partition plate, relay connectors are mounted on the upper portions of the first control valves, pressure sensors are mounted on the upper portions of the relay connectors, the relay connectors are respectively communicated with a bentonite pipeline and a flushing water pipeline through a medium injection channel, the medium injection channel is provided with a control valve group, the pressure sensor is connected with a controller through a sensor connecting line, the sensor connecting line is arranged in a sensor connecting line channel, the controller is respectively connected with the control valve group and an upper computer, and the medium injection channel and the sensor connecting line channel are installed on the rear partition plate. The flushing water pipeline is combined with the bentonite pipeline to inject water into the sensor detection channel, so that the real-time monitoring of water and earth pressure of various TBMs can be adapted, and the shutdown cost is reduced.

Description

technical field [0001] The invention relates to the technical field of soil pressure monitoring of roadheaders, in particular to a multi-mode soil pressure monitoring system of roadheaders and a working method thereof. Background technique [0002] During the excavation process of traditional roadheaders, a fixed type of roadheader is used. When encountering changeable geological conditions, one type cannot adapt to this kind of tunnel, so it will cause great damage to equipment safety and tunnel construction period. Impact. In response to this situation, more and more shield manufacturers have developed multi-mode roadheaders. In the earth pressure monitoring mode of traditional roadheaders, earth pressure shields use earth pressure sensors, muddy water shields use muddy water sensors, and hard rock shields ( TBM) does not install sensors, and each mode conversion requires different processing for different sensors. The process is complicated, the cost of downtime is high,...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/00
CPCE21D9/0642E21D9/003
Inventor 张杰周小磊赵云辉俞培德吴豪吴书航袁丹郭志勇李嘉欣赵康峰刘晓瑞张龙飞赵石
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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