An elastic wave reflection method device installed on a shield machine and its measurement method

Abstract

The invention discloses an elastic wave reflecting method device installed on a shield and its measuring method, wherein the device comprises an impulse shocker, a wave detector, an elastic device, a guide wire and a cutter of a shield; the impulse shocker and the wave detector can be aligned along the circumference of the cutter or along the radius direction, wherein the measurement method includes steps that a cutter rotating measurement method is applied, and the impulse shocker and the wave detector are detected once at a certain angle, namely, a measuring point; a circular measurement section data formed by multiple measuring points is treated and then can be formed to be a cylinder or conical time section drawing. The invention solves the problems that multiple methods can be used for forecasting when borehole-blasting method is applied to excavate, but the front part of the heading cutter cannot be operated by people during the construction of the shield, and the industry expects that the device can be installed on the shield and automatically operate. The invention solves the problem that the detecting element can be rapidly worn for being installed on the cutter since the front part of the cutter is filled with sand, soil, water, foam and other goods.

Description

technical field [0001] The invention relates to the technical field of geological forecasting for construction of roads, railway tunnels, subways, hydropower and water conservancy water delivery tunnels, etc., in particular to an elastic wave reflection method device installed on a shield machine and a measurement method thereof. Background technique [0002] Geological prediction in front of the tunnel face is an important task during tunnel and tunnel construction. At present, there are many methods for forecasting when drilling and blasting excavation. However, when using a shield machine for construction, it is impossible for people to enter and operate the front of the excavation cutterhead. The industry hopes that the equipment will be installed on the shield machine for automatic operation. , and the front of the cutter head is filled with sand, soil, water, foam and other objects, if the detection components are installed on the cutter head, they will be worn out qui...

AI Technical Summary

Problems solved by technology

At present, there are many methods for forecasting when drilling and blasting excavation. However, when using a shield machine for construction, it is impossible for people to enter and operate the front of the excavation cutterhead. The industry hopes that the equipment will be installed on the shield machine for automatic operation. , and the front of the cutter head is filled with sand, soil, water, foam and other objects, if the detection element is installed on the cutter head, it will be worn out quickly

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