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Method of monitoring coal mining solid pack pressure

A technology of solid filling and pressure monitoring, which is applied to filling materials, mining equipment, earth square drilling and mining, etc., to achieve the effects of simple method, improved filling effect and wide practicability

Inactive Publication Date: 2009-11-25
CHINA UNIV OF MINING & TECH
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Problems solved by technology

In the solid filling coal mining technology, when the filling body is filled into the goaf, as the working face advances, there is no method to solve the problem of the compaction of the filling body in the goaf. Being able to grasp the pressure of the filling body in the goaf in time is not only beneficial to analyze and grasp the filling effect, but also facilitates the filling process to be improved at any time by changing the properties of the filling body (proportion, water content) and compaction, etc. Improve the filling effect and avoid potential safety hazards

Method used

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  • Method of monitoring coal mining solid pack pressure

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Embodiment Construction

[0014] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0015] The coal mining solid filling body pressure monitoring method of the present invention: in the pre-filled goaf 4 advanced by the filling and mining working face, 3 rows of filling body pressure monitors 2 are arranged, and each row is arranged with 3, and the pressure monitor 2 between the rows The distance is 25m-35m, the distance from the first row to the cutting hole 3 is about 15m, the average buried depth of the filling mining face is 350m, the face length is 50m, and the advancing length is 460m. According to the actual needs of the site, the filling body pressure monitor 2 can be arranged in 2 to 4 rows, and each row is buried with 3 to 6 pieces at intervals, and each filling body pressure monitor 2 in each row is connected with a pressure monitor communication line 8 In the junction box 5 of the coal transportation lane 1, in order to protect...

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Abstract

Method of monitoring coal mining solid pack pressure, suitable for monitoring pressure situation of goaf pack in mining wells solid packing and coal mining process. Disposing a plurality of packs pressure monitors in packing comprehensive goaf in rows, each row of pack pressure monitors are all disposed uniformly along the working surface; when collecting data, connecting communication line of each row pack pressure monitors with main communicatin line in coal transport lane through junction box, that is the communication line of pack pressure monitor is connected to the main communication through junction box, and then connected with main communication station through the main communication line, at last transmitting data of main communication station to ground data reception system through telephone lines to monitor pressure situation of solid pack on line, and using monitoring host to analyze the pressure data to prevent damage caused by the goaf pack. The invention is provided with simplr method, easy operation, high accuracy, improved packing effect, and the invention can avoid potential safety problems.

Description

technical field [0001] The invention relates to a pressure monitoring method, in particular to a method for monitoring the pressure of a coal mining solid filling body suitable for solid filling coal mining technology in underground mines. technical background [0002] At present, the solid filling coal mining technology is more and more applied at home and abroad because of its advantages of reducing the deformation of the key layer of the overlying rock, reducing the surface settlement, and making full use of waste such as waste gangue, and has produced good economic and social benefits . In the solid filling coal mining technology, after the filling body is filled into the goaf, with the advancement of the working face, there is no method to solve this problem at present. Being able to grasp the pressure of the filling body in the goaf in time is not only beneficial to analyze and grasp the filling effect, but also facilitates the filling process to be improved at any ti...

Claims

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Application Information

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IPC IPC(8): E21B17/18E21F15/00
Inventor 张吉雄黄艳利巨峰安泰龙
Owner CHINA UNIV OF MINING & TECH
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