MONITORING SYSTEM AND MONITORING METHOD FOR LANDSLIDE UNDERWATER MESH-TYPE THREE-DIMENSIONAL DEFORMATION

WIPO Patent Application WO/2022/236894

A1

A monitoring system and monitoring method for a landslide underwater mesh-type three-dimensional deformation. A plurality of underwater multifunctional 3D displacement meters (2) are arranged in a lattice shape and are sequentially connected; four rotating shafts (208) are rotatably installed inside a housing (201); the rotating shafts (208) extend in a vertical direction; ends of the rotating shafts (208) are connected to the housing (201) with contraction springs (205); four through holes (201a) penetrate the housing (201) at intervals in a circumferential direction; pull wires (209) correspond to the through holes (201a) on a one-to-one basis; ends of the pull wires (209) are wound around the rotating shafts (208), and the other ends thereof pass though and out of the through holes (201a) and are connected to the pull wires (209) of adjacent underwater multifunctional 3D displacement meters (2); the displacement meters (2) correspond to the pull wires (209) and measure the winding and unwinding length of the pull wires (209); and a three-axis acceleration sensor (215) and a magnetic flux gate (216) monitor a change in an inclination angle and a change in an azimuth angle of the underwater multifunctional 3D displacement meters (2). On the basis of a networking-type monitoring method, inversion integral calculation can be conducted by means of sensing and monitoring a spatial state change in a larger number of points on a landslide surface, so as to indirectly obtain evolution characteristics of a landslide underwater deformation. Thus, the method is a beneficial supplement to existing landslide displacement monitoring means.

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ZHANG JUNRONG (CN)
TANG HUIMING (CN)
ZHANG YONGQUAN (CN)
LI CHANGDONG (CN)
ZHANG QING (CN)
MA JUNWEI (CN)
XIA DING (CN)
LIN CHENGYUAN (CN)
LU SHA (CN)

PCT/CN2021/098094

November 17, 2022

June 03, 2021

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UNIV CHINA GEOSCIENCES WUHAN (CN)

G01B11/16; G01D21/02; G01S19/14; H02J7/35

CN206959778U	2018-02-02
CN203163672U	2013-08-28
CN107101624A	2017-08-29
JPH0835836A	1996-02-06
CN110006382A	2019-07-12
CN106871836A	2017-06-20
CN209027460U	2019-06-25
CN109537650A	2019-03-29
CN104655191A	2015-05-27

WUHAN ZHICHANSHIDAI INTELLECTUAL MPROPERTY CO., LTD (CN)

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