Research on multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole
文献类型：期刊论文
| 作者 | Wang, Jinchao3; Wang, Chuanying3; Huang, Xiaohua1; Zou, Junpeng2 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2020-11-03 |
| 页码 | 16 |
| 关键词 | Multi-frequency ultrasound Cavity Rock velocity Structural plane Stability |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-020-01979-5 |
| 英文摘要 | At present, the lack of detection technology in underground space area is the main constraint on the development and utilization of underground space. In order to solve the difficult situation of underground space exploration and evaluation, this paper presents a multi-frequency ultrasonic scanning detection technology, a large number of borehole detection data can be obtained by using the detection system to realize the accurate scanning and detection of cavity and the belly rock mass. The stability evaluation standard of cavity is established, which realizes the integration of cavity detection and stability evaluation. This paper provides an important reference for the detection of underground cavity. A scanning point position determination method based on multi-frequency ultrasonic pulse ranging is proposed in this paper, and the coordinates of scanning points are calculated accurately to realize the 3D visualization of cavity contours. Through the refined calculation of space volume, the precise control of space deformation is realized. Then, the characteristic parameters of borehole structural plane are determined after the geometrical feature combination of structural planes and the high-frequency acoustic reflection characteristics, a directional method for rock velocity measurement, is presented for the first time by means of low-frequency acoustic wave transmission. Based on the comparative analysis of echo wave characteristics, the integrity evaluation criteria of cavity are established. Finally, by analyzing the structural characteristics of cavity and upper rock mass, and the parameters which may influence the stability of cavity, combined with an engineering example, a stability evaluation system based on the multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole is formed. |
| 资助项目 | National Natural Science Foundation for the Youth of China[41902294] ; Systematic Project of Guangxi Key Laboratory of Disaster Prevention and Engineering Safety[2019ZDK053] ; State Key Program of National Natural Science of China[41731284] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000584986200006 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25195]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Huang, Xiaohua |
| 作者单位 | 1.Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning 530004, Guangxi, Peoples R China 2.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jinchao,Wang, Chuanying,Huang, Xiaohua,et al. Research on multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:16. |
| APA | Wang, Jinchao,Wang, Chuanying,Huang, Xiaohua,&Zou, Junpeng.(2020).Research on multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,16. |
| MLA | Wang, Jinchao,et al."Research on multi-frequency ultrasonic scanning detecting technology of cavity in the test borehole".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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