Long-distance three-dimensional advanced geological forecast device for tunnel

Abstract

The invention discloses a long-distance three-dimensional advanced geological forecasting device for a tunnel. The long-distance three-dimensional advanced geological forecasting device comprises a mechanical mounting arm; the coupling frame is rotationally connected to one end of the mechanical mounting arm; the external machine body is coaxially arranged on the coupling frame in a relatively rotating mode, and the external machine body is constructed to be of a disc-shaped structure; a plurality of groups of seismic source generation assemblies which are arranged in a circumferential manner, and each group of seismic source generation assemblies are transversely embedded and fixed in the external machine body; the inner detection devices are arranged corresponding to the seismic source generation assemblies, the inner detection devices are arranged between the seismic source generation assemblies at intervals, and the inner detection devices are synchronously arranged at the circle center in the external machine body; the internal detection device is used for receiving a reflected wave signal of the seismic source generation assembly; and the inner diameter adjusting assembly is coaxially arranged in the external machine body, and the inner diameter adjusting assembly is used for adjusting the radial distance between each seismic source generating assembly and the inner detection device.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction engineering equipment, in particular to a long-distance three-dimensional advanced geological prediction device for tunnels. Background technique [0002] Tunnel advanced geological prediction refers to the advanced prediction of surrounding rock lithology, stratum composition and groundwater conditions in front of and around the tunnel face during tunnel excavation. Mainly use geology, drilling, geophysical prospecting and other methods to predict the nature, location and scale of unfavorable geological bodies in front of the construction face, provide guidance for further construction, and ensure the safety and smooth progress of construction; among them, earthquakes based on the principle of elastic wave reflection are mostly used The exploration method has a wide detection range, a large depth, and is easy to operate; while the seismic wave reflection method in the prior art has a ...

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Problems solved by technology

Mainly use geology, drilling, geophysical prospecting and other methods to predict the nature, location and scale of unfavorable geological bodies in front of the construction face, provide guidance for further construction, and ensure the safety and smooth progress of construction; among them, earthquakes based on the principle of elastic wave reflection are mostly used The exploration method has a wide detection range, a large depth, and is easy to operate; while the seismic wave reflection method in the prior art has a large workload, takes a long time, and requires a lot of preparation work, especially in the distance measurement arrangement of the source point and the seismic source During launch, the process takes a long time; therefore, those skilled in the art provide a long-distance three-dimensional advanced geological forecasting device for tunnels to solve the problems raised in the above-mentioned background technology

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