Tunnel boring machine active source three-dimensional seismic advanced detection device and method

Abstract

The invention discloses a tunnel boring machine active source three-dimensional seismic advanced geology exploration device and method. The device comprises a tunnel boring machine cutterhead and a tunnel boring machine body connected with the cutterhead, wherein a main control room is arranged in the tunnel boring machine body; a controller and a multichannel seismic wave data collecting instrument are arranged in the main control room; seismic source systems are respectively arranged at the front ends of the tunnel boring machine cutterhead and the tunnel boring machine body; a data collecting system is arranged at the rear part of the working surface of the tunnel boring machine body according to certain space observation mode; the controller is respectively connected with the multichannel seismic wave data collecting instrument, the seismic wave systems and the data collecting system; the multichannel seismic wave data collecting instrument is connected with the data collecting system. The device has the benefits that rapid, flexible and automatic arrangement of a seismic wave and a detector system is realized, the maintenance time of the tunnel boring machine is sufficiently utilized, the work efficiency of geological advanced prediction is greatly improved, the normal construction is not disturbed, and time cost and economic cost are saved.

Description

technical field [0001] The invention relates to the field of advanced geological prediction during the construction process of tunnel boring machines, in particular to an active source three-dimensional seismic advanced geological detection device and method in tunnel boring machines. Background technique [0002] Compared with the traditional drilling and blasting method, tunnel boring machine construction has significant advantages such as "fast excavation speed, high hole quality, high comprehensive economic benefits, and safe and civilized construction". Developed countries such as Japan, the United States, and Europe use roadheaders for construction. The proportion of tunnels in my country exceeds 80%, and with the continuous development of tunnel construction in China, tunnel boring machines will also be used more and more. At the same time, many engineering practices have shown that the adaptability of tunnel boring machines to geological conditions is poor. Geological...

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Problems solved by technology

[0005] ①The observation method is simple, and no effective three-dimensional space observation method is adopted, so it is difficult to obtain accurate wave field information of the surrounding rock mass, resulting in poor spatial positioning of abnormal bodies, and prone to problems such as omission, misreporting and misreporting

[0006] ② In order not to affect the normal construction of the tunnel boring machine, the advanced seismic wave detection needs to use the maintenance time of the roadheader as much as possible (about 2 hours per day) for detection, which puts forward requirements for the efficiency of the advanced seismic wave detection. The rapid installation device and method of construction tunnels lead to low detection efficiency and affect the normal construction of roadheaders

[0007] ③ The automation of seismic wave data processing needs to be further improved, the seismic wave migration imaging method needs to be improved, and the three-dimensional imaging, abnormal body spatial positioning and detection accuracy need to be improved

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