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Experiment device used for simulating goaf filling process

An experimental device and goaf technology, applied in measuring devices, teaching models, fluid dynamics tests, etc., can solve problems such as stratum subsidence, ecological environment, and difficult governance tasks, and achieve good sealing effect, reasonable structure, and controllable precision high effect

Inactive Publication Date: 2013-04-10
JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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Problems solved by technology

Coal mine goafs lead to serious subsidence and ecological environment problems, and the task of governance is arduous

Method used

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  • Experiment device used for simulating goaf filling process

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Embodiment Construction

[0013] Attached below figure 1 The method and effect of the present invention are further described in detail with an embodiment of the present invention, but the present invention is not limited to this embodiment.

[0014] The experimental device for simulating the gob filling process includes three parts: the experimental simulation device, the external grouting controller and the data acquisition device; it also includes the overlying moving load 10 for simulating the goaf affected by the overlying load. Described experimental simulation device comprises transparent model body 1, and in transparent model body 1, is filled with layered rock-soil layer 3, and simulation goaf 2 is reserved in rock-soil layer 3, and the injection hole that communicates with goaf 2 The slurry conduit 7; the data acquisition device includes at least one sensor 4 arranged in the goaf and a data collector 6 outside the transparent model body 1, each sensor acquires data and is transmitted to the d...

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Abstract

The invention provides an experiment device used for simulating a goaf filling process, and belongs to the technical field of coal mine goaf filling and underground engineering filling. The experiment device mainly comprises an experiment simulating device, an outer grouting control device and a data collecting device, wherein the experiment simulating device is composed of a transparent model body made of organic glass, a rock-soil layer arranged in a layered mode, a simulative goaf, a grouting guide pipe communicated with the goaf, and sensors arranged in the goaf. A grouting process is automatically controlled by the outer grouting controller. Data obtained by the sensors is transmitted to a data collector through data lines. The experiment simulating device, the outer grouting control device and the data collecting device are connected in a matched mode, in the grouting process and when the situation that overlying load effect acts on a roadway is simulated, data of the sensors is collected, and mechanics evolution process analysis in the coal mine goaf filling process is achieved. The model body of the experiment device is transparent and visible, the grouting process and the data collection are automatic, and the experiment device is reasonable in structure, high in controllable precision, good in sealing effect and suitable for being used in teaching demonstration and scientific research of the indoor experiment of the goaf filing process.

Description

technical field [0001] The invention relates to an experimental device for indoor simulation of goaf filling process, belonging to the technical field of coal mine goaf filling and underground engineering filling. Background technique [0002] my country is a large country of coal consumption and production. Long-term coal mining has formed a large area of ​​underground goaf, especially the "three-down" mining of coal has formed a goaf. Gobs in coal mines lead to serious stratum subsidence and ecological and environmental problems, and the task of governance is arduous. [0003] For a long time, goaf backfilling at home and abroad has mainly adopted three methods: dry filling, water-sand filling and cemented filling. Among them, the cemented filling goaf method has high strength after cementation, which can significantly reduce the use of raw materials. It can also be used for medium-thick ore bodies with deep burial, high ground pressure, and unstable surrounding rocks. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/00G01M10/00
Inventor 陶祥令刘辉王静徐新斌魏建军刘聘徐志鹏赵武涂强崔廷锋
Owner JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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