A three-dimensional similar simulation material simulation test displacement measurement device and its measurement method
A similar simulation and material simulation technology, applied in the direction of measuring devices, fluid devices, instruments, etc., can solve the problems of discontinuous, inaccurate, untrue readings, etc., to achieve true and accurate experimental results, simple operation steps, and true experimental results Effect
Inactive Publication Date: 2017-09-15
HUAIHAI INST OF TECH +1
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Problems solved by technology
[0009] 1. During the test, the three-dimensional distributed displacement measurement device will inevitably exert external force on the overlying rock, which will affect the accuracy of the test results;
[0010] 2. The readings are discontinuous, so there may be problems that the sudden change point of overlying rock movement caused by mining cannot be monitored;
[0011] 3. Its working principle is limited to the three-dimensional distributed displacement measurement device, so it can only monitor the subsidence of the overlying rock, but cannot monitor the uplift of the overlying rock, making the simulation experiment results incomplete, untrue, and inaccurate
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[0065] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0066] Such as figure 1 As shown, the three-dimensional similar simulation material simulation test displacement measurement device of the present invention includes a frame structure part and a displacement monitoring unit for holding similar simulation materials;
[0067] The above-mentioned frame structure part for containing similar simulation materials is a box structure without a cover as a whole, including a rectangular base, four columns vertically and fixedly connected at the four corners of the base, and a detachably connected movable baffle. plate;
[0068] The similar simulation materials inside the above-mentioned box structure are layered structures, which are divided into several layers in the vertical direction;
[0069] The above-mentioned column is an angle steel with the top angle facing outwards, and several screw holes are evenly opened on the ...
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The invention discloses a device for measuring the displacement of a simulation test on a three-dimensional similar simulation material and a measurement method of the device. The main structure of the device is a micro-pressure sensing device with a liquid storage cavity structural form; when the device is used, a mode for directly burying the micro-pressure sensing device into the similar simulation material is adopted, and the micro-pressure sensing device is connected with a liquid storage tank, an acquirer and a computer respectively so as to ingeniously convert complicated monitoring on the local displacement in the similar simulation material into simple detection and output of a pressure signal, so that the device is simple and reasonable in structure, an experimental result is real and accurate, and a system error is small. The device disclosed by the invention has automatic reading and whole recording functions; the problem that a sudden change point cannot be monitored in the prior art and the technical problems that the simulation experimental result is incomplete, untrue and inaccurate as only overlying strata sinking can be monitored and overlying strata lifting cannot be monitored in the prior art are better solved.
Description
technical field [0001] The invention relates to a similar simulation experiment device and an experiment method thereof, in particular to a three-dimensional similar simulation material simulation test displacement measurement device and a measurement method thereof. Background technique [0002] The law of overlying rock movement is an important research content of mining engineering, but it brings a lot of inconvenience to the research because of the relatively hidden research object. [0003] Similarity simulation is to make a model similar to the prototype in the laboratory according to the similarity principle, observe the mechanical parameters and their distribution rules in the model with the help of test instruments, and use the research results on the model to infer the possible mechanical phenomena and rock mass in the prototype The law of pressure distribution. [0004] Therefore, when using the simulation method of similar simulation materials, when studying the...
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IPC IPC(8): G01B13/02
CPCG01B13/02
Inventor 江宁吴建新张锋魏辉江霞
Owner HUAIHAI INST OF TECH