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Cavern filling type coal mining method

A coal mining method and filling technology, which is applied in ground mining, earth drilling, underground mining, etc., can solve problems such as spontaneous combustion and environmental pollution, and achieve the effects of saving lifting costs, easy operation, and eliminating worries

Inactive Publication Date: 2004-03-24
杨新兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of coal gangue will spontaneously ignite during a long period of storage, releasing a variety of harmful components, causing pollution to the environment

Method used

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  • Cavern filling type coal mining method
  • Cavern filling type coal mining method
  • Cavern filling type coal mining method

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Embodiment Construction

[0018] refer to figure 1 2. Assuming that the coal seam shown in the figure is a gently inclined coal seam, and the thickness of the coal seam is about 4 meters, the main steps of mining are: establish the main shaft 1, the auxiliary shaft or ventilation shaft 2, the parking lot at the bottom of the shaft 3, and excavate the uphill road leading to the mining face The track 4 and the transport track 5 pre-delineate a row of horizontal roadways 7 in the mining face 6, and a plurality of parallel horizontal roadways are arranged at intervals from top to bottom along the inclination direction of the coal seam. The section shape of the roadway is arched, and the entrance of each roadway is connected with the uphill track and the uphill transportation. The width of the roadway is 4 meters, the height is 3.5 meters, and the distance between the upper and lower roadways is also 4 meters. The coal in the topmost horizontal roadway is mined first, and after the mining is completed, the ...

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Abstract

The present invention relates to a cancem filling type coal-mining method. Said method includes the following steps: building main shaft, auxiliary shaft, road large tunnel, haulage drift, ventilation drift and setting stope face, and when the coal is extracted, it adopts cavem filling mode, including the following steps: dividing stope face, presetting horizontal drief on the stope face, one-by-one extracting coal form horizontal drift, after every drift is extracted, filling the empty drift with coal gangue, and its filling rate is greater than or equal to 80%.

Description

technical field [0001] The invention relates to a coal mining method, in particular to a mining method for a gentle slope coal seam under a building, and belongs to the technical field of coal mining. Background technique [0002] The traditional coal mining method adopts the excavation coal mining method. Mining starts from the farthest point in the designated mining area. When the mining reaches a certain level, support equipment is installed to prevent subsidence. Afterwards, the support equipment will be dismantled when mining continues. Moved, the original mine was allowed to collapse. When the hollow coal mining method encounters a shallow coal seam and there are buildings or villages on the ground where the coal seam is located, the mining will have an adverse impact on the ground where the buildings or villages are located. Various restrictive regulations have been made and some standards have been formulated so as not to endanger the safety of buildings or villages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/18
Inventor 杨新兴
Owner 杨新兴
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