Supporting Technology of Coal Mining Working Face Crossing Superelevation Section
A technology for coal mining face and super-elevation section, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve problems such as difficult operation, high cost, and high labor intensity, and achieve the effect of labor-saving operation
Active Publication Date: 2018-12-11
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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Problems solved by technology
[0003] In order to solve the technical problems such as high labor intensity, high cost and difficult operation in the ultra-elevation section support of the mining face, the present invention provides a super-elevation section support technology of the coal mining face
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[0012] Such as image 3 , 4 As shown in , 5, a support technology for superelevation section of coal mining face, when coal mining advances to superelevation section, single column 4 of 3.5m and above is used to support superelevation section to strengthen support When the roof of the section, the head or the tail of the coal mining face is advanced to the superelevation section of the roadway, wooden piles are placed on the top beam of the support to connect the roof. The specific plan is to use two 4.4m first-layer The wooden beam 5 is laid vertically on the working surface, the distance between the first layer of wooden beam 5 and the front end of the top beam of the bracket is not more than 1m, and then no less than four layers of floor planks are laid on the first floor of wooden beam 5, and one of the floor plank 8 is set At the outer end of the first layer of wooden beams 5, a second layer of wooden beams 6 is laid on the first layer of wooden beams. The distance betwe...
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The invention relates to a coal mining technology, in particular to a support technology for a coal face to pass through a superelevation section, and solves the technical problems of high labor intensity, high cost, and high difficultly in operation in a conventional support technology for a stope face to pass through a superelevation section. An original method that #-shaped timber cribs need to be constructed to all the tops of capplces at the complete roadway superelevation section is improved into a method that capplces and #-shaped timber cribs on the upper sides of the capplces are not constructed, but timber cribs are only constructed on two brackets, so that the brackets can pass through the superelevation section, and the method has the advantages that the operation is labor-saving, and the brackets can pass through the superelevation section safely.
Description
technical field [0001] The invention relates to a coal mining process, in particular to a support process for superelevation section of a coal mining face. Background technique [0002] During the mining process of the coal mining face, due to the geological structure and other reasons, the two roadways of the inlet and outlet airways often encounter super-high sections. , the maximum height of the roadway is about 4.0m, as attached figure 1 As shown, a single column is required. Generally, a shed beam is erected at an interval of not more than 1 meter, and the top of each second shed beam beam head is manually constructed with a "#" character wooden pile to connect the roof to support the roof, so that the bracket can be supported from the The shed beams pass through the super-elevated section of the roadway, and cooperate with the wooden stacks on the scaffolding to support the roof. This method requires the construction personnel to work at high altitudes, and often go t...
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IPC IPC(8): E21D23/04
CPCE21D23/04
Inventor 宋小平张向阳王静包长明李丰廷
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD