The method of accurately locating the position of the sensor after the formation of the simulated fault and correcting the stress
A precise positioning and sensor technology, applied in the direction of applying stable tension/pressure to test the strength of materials, instruments, measuring devices, etc., can solve the complicated process of determining one by one, the stress sensor cannot accurately respond to the monitoring data, and the accuracy cannot be guaranteed, etc. problem, the method of determining the angle is simple and the effect of high measurement accuracy
Active Publication Date: 2022-04-29
SHANDONG UNIV OF SCI & TECH
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[0004] Due to the need to use a large number of stress sensors in similar material simulation experiments, some of the stress sensors will rotate during the movement of the test material, and the stress sensors that undergo deflection motion cannot accurately reflect the monitoring data. If the positions and angles of the sensors are determined one by one The accuracy cannot be guaranteed, and the process of determining one by one is also very complicated. For this reason, it is necessary to determine the position of each stress sensor after the simulated fault is formed, and correct the stress monitoring parameters
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[0028] combine Figure 1 to Figure 6 As described above, a method for accurately locating the position of the sensor after the formation of the simulated fault and correcting the stress provided by the present invention is implemented in the following manner.
[0029] The fault simulation device is used to simulate faults with similar materials. The test system mainly includes three parts: fault formation process simulation test device, stress monitoring system and displacement monitoring system. The test system has the following characteristics: using the screw for lateral loading, displacement loading can be realized, and a constant displacement can be effectively maintained during the fault development process; it can intuitively and clearly reproduce the development process of reverse faults, and the Real-time monitoring of rock stress displacement changes. The simulation test bed for the formation process of reverse faults. In the development process of the test bed, if ...
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The invention provides a method for accurately locating the position of a sensor after the formation of a simulated fault and correcting the stress, and relates to the technical field of indoor simulation test monitoring. The moving track is set in the direction and the vertical direction respectively, and the moving receiver is set on the moving track, and 2-3 transmitters are arranged in a straight line on the stress sensor; B. laying similar materials, and embedding multiple stress sensors in similar materials; C. The lateral loading device of the fault simulation device extrudes similar materials to form a fault, and records the monitoring data of the stress sensor; D. Determine the angle and position of the stress sensor, and correct the monitoring data of the stress sensor. This method solves the technical problem that it is difficult to determine the position of the stress sensor in the simulated fault test of similar materials, and also has the advantages of accurate positioning and easy operation.
Description
technical field [0001] The invention relates to the technical field of indoor simulation test monitoring, in particular to a method for accurately locating the position of a sensor after the formation of a simulated fault and correcting the monitoring stress. Background technique [0002] Coal mining is mainly based on underground mining, mostly underground construction, which inevitably crosses various types of faults. Because the fault will cut the strata and destroy its continuity and integrity, forming a fault zone fracture zone, which will cause great differences in the stress, displacement and failure form of the surrounding rock mass; therefore, when construction is carried out near faults, especially large faults, engineering disturbance The superposition of faults and faults may cause the response characteristics of the rock mass near the fault to be different from that of the intact rock mass, and also induce engineering geological disasters. The mining of near-fa...
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IPC IPC(8): G01N3/08G01N3/06
CPCG01N3/08G01N3/066G01N2203/0003G01N2203/0019G01N2203/0617
Inventor 陈绍杰杜兆文卞壮夏治国葛尧
Owner SHANDONG UNIV OF SCI & TECH