Title:
ROADWAY WALL DISPLACEMENT MEASUREMENT DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/093123
Kind Code:
A1
Abstract:
A roadway wall displacement measurement device and method. The device comprises a particle emitting source (1) used for emitting charged particles, a first space used for selecting the charged particles having a specific speed, a particle receiver (8), and a second space used for deflecting the charged particles onto the particle receiver (8); a vertical and downward electric field is provided in the first space, and uniform magnetic fields (6) that are perpendicular to a roadway section and inward are provided in the first space and the second space; the particle receiver (8) is connected to a follower rod (11); the fixed end (13) of the follower rod (11) is inserted into a loose rock layer of a roadway wall. The device and method perform measurement on the amount of creep displacement of the roadway wall according to the laws of motion of the charged particles in a uniform electric field and the uniform magnetic fields (6), thereby being capable of greatly improving the accuracy of a measurement result of the amount of creep displacement of the roadway wall, improving the convenience and efficiency of measurement, ensuring normal production in a mine while measuring the amount of creep displacement of the roadway wall without affecting the traveling of persons and trolleys, and ensuring the normal running of production.
Inventors:
NING JIANGUO (CN)
QIU PENGQI (CN)
LI XUEHUI (CN)
YANG SHUHAO (CN)
LI ZHUANG (CN)
SHEN ZHEN (CN)
QIU PENGQI (CN)
LI XUEHUI (CN)
YANG SHUHAO (CN)
LI ZHUANG (CN)
SHEN ZHEN (CN)
Application Number:
PCT/CN2019/129989
Publication Date:
May 20, 2021
Filing Date:
December 30, 2019
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
G01B7/02; E21F17/18
Foreign References:
| CN110132123A | 2019-08-16 | |||
| CN101248505A | 2008-08-20 | |||
| CN104533395A | 2015-04-22 | |||
| CN110318795A | 2019-10-11 | |||
| JP2004316117A | 2004-11-11 | |||
| JPH06258017A | 1994-09-16 |
Attorney, Agent or Firm:
QINGDAO JINJIA PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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