Array type sound wave scanning high-precision drilling imaging method and device

Abstract

The invention discloses an array type sound wave scanning high-precision drilling imaging device. A scanning head is located at the bottom of a protective shell. A guide cover is disposed at the bottom of the scanning head. The protective shell is separated by a positioning table plate into a circuit module cavity and a scanning power cavity. The lower portion of the scanning head is circumferentially and uniformly provided with sound wave probes with the quantity of N. The invention further discloses an array type sound wave scanning high-precision drilling imaging method. A plurality of sound wave probes are used to realize the reasonable arrangement of array type sound wave probe drilling scanning. All-directional sound wave scanning detection of a borehole is realized by adopting the scanning power cavity. An array type sound wave scanning high-precision drilling imaging system is formed. The problems of distortion and low precision, which are caused by the fact that an instrumentprobe is not centered, of sound wave drilling imaging results are solved. Rich detection data is realized. The detection adaptability is strong. Breakthrough and substantial progress are made on the problem of detection precision of drilling imaging. The array type sound wave scanning high-precision drilling imaging device and method have noticeable scientific significance and economic and practical value.

Description

technical field [0001] The present invention relates to the field of geotechnical structure detection devices, in particular to a high-precision borehole imaging device for array-type acoustic wave scanning, and also relates to a high-precision borehole imaging method for array-type acoustic wave scanning, which is applicable to various engineering fields Carry out detailed investigation and detection of the rock mass structure in the geological borehole, obtain the image feature information of the drilled rock mass structure and the structural feature information of the drilled rock mass, and realize the borehole detection of different depths, different sizes and different liquid medium environments . Background technique [0002] Rock mass is a complex geological structure composed of discontinuous structural planes such as fissures, joints, beddings, and faults. For a long time, the research on these discontinuous structural planes constitutes the basis of engineering ge...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of distortion and low-precision detection of acoustic wave borehole imaging results caused by the misalignment of instrument probes in the past, and propose a high-precision borehole imaging device for array type acoustic wave scanning, and also provide an array type The high-precision drilling imaging method of acoustic scanning realizes real-time correction of different drilling depths and different drilling environmental media, effectively improving the drilling imaging accuracy of acoustic scanning

Images