Study of hidden structure detection for tunnel surrounding rock with pulse reflection method

doi:10.1016/j.measurement.2020.107791

	Study of hidden structure detection for tunnel surrounding rock with pulse reflection method
	Wang, Jinchao 2; Wang, Chuanying 2; Han, Zengqiang 2; Jiao, Yuyong 1; Zou, Junpeng 1
刊名	MEASUREMENT
	2020-07-15
卷号	159 页码:14
关键词	Tunnel engineering Concealed structure Structure detection Pulse reflection method 3D imaging Characteristic parameters
ISSN号	0263-2241
DOI	10.1016/j.measurement.2020.107791
英文摘要	The hidden structure is one of the bottlenecks restricting the construction of underground engineering such as tunnels. The hidden structure detection of surrounding rock on the planned route in the tunnel construction early stage has become an important engineering scientific problem to be studied and solved. In view of the above problems, this paper puts forward a solution idea based on the acoustic total pulse reflection method, and develops a pulse reflection detection instrument for the tunnel surrounding rock concealed structure. It is proposed to solve the location problem of concealed structures by starting with the data of all-round acoustic pulse reflection sequence, and to form an optimization scheme of scanning acoustic 3D inversion imaging and data visualization of tunnel surrounding rock based on 3D full pulse sequence inversion method. In view of the estimating characteristic parameters difficult problem of the surrounding rock concealed structure, a method estimating the characteristic parameters of the concealed structure based on the numerical search is proposed. If there is a coupling layer between the acoustic transducer and the rock wall through the physical model test, the phase characteristic relationship between the acoustic signal and the detection target can be used to solve the difficult problem estimating the characteristic parameters of the surrounding rock concealed structure in the actual project. Finally, a comprehensive technical system of 3D imaging and characteristic parameter estimation for the tunnel surrounding rock concealed structure is formed, and the technology is applied to the detection of actual tunnel surrounding rock The detection results are basically consistent with actual characteristics. The practical application results show that the estimation technology of hidden structural characteristic parameters can effectively solve the location problem of hidden structure in the surrounding rock structure detection before the design and construction stages of tunnel, especially the estimation of location, orientation and hidden structure sound velocity can be realized, and the function of rock structure detection technology can be expanded, which has a good application prospect and promotion value. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	State Key Program of National Natural Science of China[41731284] ; National Natural Science Foundation for the Youth of China[41902294]
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000535953600041
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24171]
专题	中科院武汉岩土力学所
通讯作者	Wang, Jinchao
作者单位	1.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jinchao,Wang, Chuanying,Han, Zengqiang,et al. Study of hidden structure detection for tunnel surrounding rock with pulse reflection method[J]. MEASUREMENT,2020,159:14.
APA	Wang, Jinchao,Wang, Chuanying,Han, Zengqiang,Jiao, Yuyong,&Zou, Junpeng.(2020).Study of hidden structure detection for tunnel surrounding rock with pulse reflection method.MEASUREMENT,159,14.
MLA	Wang, Jinchao,et al."Study of hidden structure detection for tunnel surrounding rock with pulse reflection method".MEASUREMENT 159(2020):14.