Upward drift filling method
A technology for filling and entering roads, which is applied to filling materials, ground mining, mining equipment, etc., and can solve problems such as increasing the cost of building walls
Inactive Publication Date: 2012-02-01
CHINA MINMETALS CHANGSHA MINING RES INST +3
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However, this method does not jump out of the framework of the upward approach filling method, only changes the filling process, and increases the cost of wall construction
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[0019] When the ore body adopts the upward approach filling method, and multiple access routes are arranged for mining at intervals, the ore block is arranged vertically to the ore body trend, and the ore block is divided into routes perpendicular to the ore body trend, with a layer height of 3.0m and a layered The height can be determined according to the actual layered height of each mine division. Now give an example, such as figure 1 shown.
[0020] The specific implementation of the upward approach filling mining method is: when it is necessary to continue mining on the original approach, the filling will not be connected to the top; The storey height is slightly smaller. That is, starting from the lower part of the middle section of the ore block from bottom to top mining (or starting from other parts), the single-number approach of the first layer is mined first, and the mining height is 3.0m, which is the height of the layer. After mining, it is filled and connected ...
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The invention discloses an upward drift filling method, and relates to an underground mine mining method. In the method, mining is performed in a laneway tunneling mode, and then filling is performed; moreover, roof-contacted filling is required. A drift of a stope or a panel is divided into an odd-number drift and an even-number drift; first, a first layer of the odd-number drift is stoped and the roof-contacted filling is performed; then, upwards stoping and filling are performed on the odd-number drift and the even-number drift alternately from the even-number drift; when upward stoping is continuously performed on an original drift, the roof-contacted filling is not required; and when the odd-number drift and the even-number drift are converted, the roof-contacted filling is required. A stoping order and a filling mode of the method are improved on the basis of not changing small-span operation of the upward drift filling method; and the roof-contacted filling is performed on an interlayer, so that the high-cost and low-efficiency drift laneway tunneling amount and roof-contacted filling times are reduced, and a good economic benefit is achieved.
Description
technical field [0001] The invention relates to the design of mining methods in underground mines, and is an improvement of the upward approach filling method. Background technique [0002] The "Mining Design Manual" published by China Construction Industry Press in 1987 defines that the upward approach filling method is a mining method that uses roadway approach to recover and fill from the bottom up. The difference between the upward approach filling method and the upward horizontal layer filling method is that there is no need to leave blasting compensation space or work space for the lower layer after mining, and the filling must be cemented and connected to the roof. The upward approach filling method is not stable for ore rocks, but the ore body can basically guarantee a stable mining approach, and the top and bottom pillars with cemented filling bodies above and below have good mining adaptability, and are widely used at home and abroad. [0003] Depending on the thi...
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IPC IPC(8): E21C41/16E21F15/00
Inventor 柳小胜宋嘉栋龙珊马自辉
Owner CHINA MINMETALS CHANGSHA MINING RES INST