Quantitative simulation test system and method that can realize coal and gas outburst induced by Shimen roadway excavation
A simulation test system, gas outburst technology, applied in the direction of measuring devices, fuel oil testing, material inspection products, etc., can solve the construction process factors that are closely related to the time of the outburst process, and the real geological structure, scale and test of the outburst coal seam are not considered. Problems such as small model size, to meet the quantitative simulation of real conditions, improve test ability and accuracy, and work efficiently
Active Publication Date: 2019-12-06
SHANDONG UNIV +1
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[0010] 1. The model materials used in the test are generally made of pulverized raw coal directly pressed or added with coal tar, without considering the real geological structure of the outburst coal seam, and quantitative control cannot be achieved;
[0011] 2. The instruments are used to uncover coal outburst instantly, without considering that the outburst process is a construction process factor closely related to time;
[0012] 3. The stability and adjustability of the mechanical loading system, the overall airtightness of the model, and the accuracy of the test components still need to be improved;
[0013] 4. The scale of the instrument is small, the scale and the size of the test model are also small, the similar conditions are not rigorous, the boundary conditions are not fully considered, and the test accuracy is low
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[0051] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0052] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0053] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...
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The invention discloses a quantitative simulation test system and method capable of realizing coal and gas outburst induction during cross-cut roadway tunneling. The system mainly consists of five major key unit modules including a model counterforce and space sealing unit, a high-flow-rate high-pressure gas filling loading unit, a high ground stress gradient loading intelligent control unit, a roadway miniature digging and high-speed recording unit and a multi-physical-field information obtaining unit. The test model loading counterforce support and gas sealing, true three-dimensional highland stress flexible gradient loading and precise control, high-flow-rate gas source continuous pressure maintaining filling, model roadway quantitative control tunneling and outburst process capturing,and high-frequency high-precision real-time collection of key physical parameters in the test process are realized at the same time. The system and the method realize the quantitative simulation testof the coal and gas outburst induction during cross-cut roadway tunneling.
Description
technical field [0001] The invention relates to a quantitative simulation test system and method capable of realizing coal and gas outburst induced by excavation in a Shimen roadway. Background technique [0002] The mechanism of coal and gas outburst and its early warning and prevention have become the key scientific issues that need to be broken through in the safe production of high gas outburst mines. Coal and gas outburst is a highly nonlinear gas-solid coupling dynamic failure problem, and its mechanism is very complicated. There is no such problem at home and abroad Quantitative research on coal and gas outburst test equipment makes it difficult to break through the outburst mechanism. As an important way to study underground engineering, the geomechanical model test can strictly control the main parameters of the test object, which is conducive to highlighting the main contradictions in the complex test process. It has the advantages of controllable test conditions, ...
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IPC IPC(8): G01N33/22
CPCG01N33/222G01N33/227
Inventor 李术才袁亮王汉鹏李清川张冰薛俊华段昌瑞任波刘众众
Owner SHANDONG UNIV