System and method for advanced prediction of tunnel based on geophone layout device and drilling and blasting method

Abstract

The present invention discloses a tunnel advance prediction system and method based on a geophone layout device and drill-and-blast method. It solves the problem in the prior art that the seismic wave imaging results are affected, and has the beneficial effect of ensuring the construction progress and detection effect. The solution is as follows: Based on the geophone layout device, it includes a first propulsion mechanism, the first propulsion mechanism is installed in the housing; a fixed block, the fixed block is connected to the first propulsion mechanism, and the first propulsion mechanism moves the fixed block forward or backward; the first geophone, The fixed frame is installed on the fixed block, and the movement of the fixed block drives the first geophone to move forward or backward; the second propulsion mechanism is installed on the fixed block and can push the first geophone to rise, thereby pushing the first geophone up. The first geophone is installed on the surface of the tunnel face.

Description

technical field [0001] The invention relates to the field of geological advance prediction, in particular to a system and method for advance prediction of tunnels based on a geophone layout device and a drilling and blasting method. Background technique [0002] The drilling and blasting method is one of the important methods in the construction of tunnels and underground projects. During the construction process, in order to avoid geological disasters such as water and mud inrush, landslides and other geological disasters, advanced geological prediction methods are often used to monitor the geological conditions in front of the tunnel face. Investigate in advance, and put forward reasonable disposal and countermeasures to provide guidance for safe and smooth construction. At present, seismic wave methods are mostly used in drilling and blasting tunnels for advanced detection. During the detection, seismic waves are artificially excited and generated. When the seismic waves ...

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Problems solved by technology

[0003] (1) Explosives or artificially excited seismic sources are often used on the seismic source. Explosive seismic sources have high safety risks, including hidden dangers in storage, transportation and blasting; while the intensity of seismic waves generated by artificial hammering is difficult to guarantee and can be repeated. Poor performance, affecting imaging results

[0004] (2) In terms of geophone layout, the traditional method uses the method of manually laying out the survey line. At the same time, the equipment needs to be transported or carried additionally, and the space of the vehicle itself is not used, resulting in low space utilization and work efficiency. At the same time, the current wiring position is limited, especially It is difficult to detect the reflected wave signal at the face of the face, which cannot meet the requirements and purposes of three-dimensional detection, and affects the detection results

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