Title:
VECTOR-RESISTIVITY-BASED REAL-TIME ADVANCED DETECTION METHOD FOR WATER-BEARING HAZARD BODY
Document Type and Number:
WIPO Patent Application WO/2022/222742
Kind Code:
A1
Abstract:
A vector-resistivity-based real-time advanced detection method for a water-bearing hazard body. The method comprises: on the basis of a pre-constructed detection environment, acquiring, in real time, the potential difference between receiving dipoles, which are on a shield machine, wherein the receiving dipoles comprise first receiving dipoles and second receiving dipoles (S220); according to a relative positional relationship between each receiving dipole and each power supply dipole, and the potential difference between the receiving dipoles, converting resistivity by using a steady-flow field resistivity calculation formula, so as to obtain the apparent resistivity of the receiving dipoles (S240); drawing apparent resistivity curves of the receiving dipoles by using the position of each power supply dipole as the abscissa and apparent resistivity as the ordinate (S260); and determining a detection result of an anomalous body by performing analysis according to each apparent resistivity change curve (S280). During a continuous tunneling process of an underground shield machine, electrical signals are constantly received by receiving dipoles, and apparent resistivity curves of the receiving dipoles are drawn, such that the condition of a water-bearing hazard body being ahead of tunneling is detected in real time, thereby improving the real-time performance of an advanced prediction result.
Inventors:
JIANG ZHIHAI (CN)
YUE JIANHUA (CN)
LIU SHUCAI (CN)
WANG SHAOQING (CN)
LI MAOFEI (CN)
GAO ZHAOFENG (CN)
WANG WENCHUANG (CN)
YUE JIANHUA (CN)
LIU SHUCAI (CN)
WANG SHAOQING (CN)
LI MAOFEI (CN)
GAO ZHAOFENG (CN)
WANG WENCHUANG (CN)
Application Number:
PCT/CN2022/085060
Publication Date:
October 27, 2022
Filing Date:
April 02, 2022
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
G01V3/04
Foreign References:
| CN113156518A | 2021-07-23 | |||
| CN109461359A | 2019-03-12 | |||
| CN111650652A | 2020-09-11 | |||
| CN112558178A | 2021-03-26 | |||
| CN110333542A | 2019-10-15 | |||
| CN106907145A | 2017-06-30 | |||
| US5199818A | 1993-04-06 | |||
| CN104007472A | 2014-08-27 |
Other References:
XING XIUJU, WU ZHENGFEI; ZHANG YIRUI; JIANG QIPING: "Application of 3D Transient Electromagnetic Advance Detection Technology in Tunnel Water Exploration", MODERN TUNNELLING TECHNOLOGY, ZHONGTIE XI'NAN KEXUE YANJIUYUAN, CN, vol. 57, no. 1, 1 February 2020 (2020-02-01), CN , pages 162 - 167, XP055979192, ISSN: 1009-6582, DOI: 10.13807/j.cnki.mtt.2020.01.024
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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