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Precontrol top upward access cut-and-filling stopping method

A technology of approach filling and pre-controlled roofing, applied in ground mining, underground mining, special mining, etc., can solve the problems of low mining intensity and labor productivity, small stope production capacity, and many operating cycles, etc., to improve production efficiency and production capacity, good safety, and low dilution rate

Active Publication Date: 2013-07-17
湖北楚磷矿业股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, this mining method has low mining intensity and labor productivity, many operation cycles, high cost, and small stope production capacity.

Method used

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  • Precontrol top upward access cut-and-filling stopping method
  • Precontrol top upward access cut-and-filling stopping method
  • Precontrol top upward access cut-and-filling stopping method

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Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] The pre-control top-up filling mining method uses two layers as a mining unit. First, the upper layer is mined, which is the top layer, and measures are taken to strengthen the roof, and then the lower layer is mined, which is the recovery layer. The two layers are mined After that, filling is carried out; after all the upper and lower layers of the stope are mined and filled, the upper layer is raised to the upper two layers, and the specific steps are as follows:

[0020] 1), see figure 1 , figure 2 with image 3 , the route is arranged vertically to the orebody strike

[0021] The main mining projects include ramp 2, piercing vein 4, stage transportation entry 1 and filling return entry entry 6, etc. From the entrance 3 of the ramp to the upper and lower walls of the ore body, the upper wall contact entry 10 and the footwall contact entry 11 are respectiv...

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Abstract

The invention discloses a precontrol top upward access cut-and-filling stopping method. The method comprises the following steps of: stopping an upper slice (namely roof control layer) by an access mining method, stopping a lower slice (namely stopping layer) after a top plate is reinforced by measures, filling after two slices are stopped, and rising to two upper slices after the upper and lower layers of access are stopped and filled. According to the method, the single-slice stopping of an ordinary upward access filling method is changed into double-slice stopping, so that the access support work amount and support cost (requiring only support upper slice) are reduced, and the access filling time is lowered, and the operation cycling progress is accelerated; and besides, the upper slice stopped provides a compensating space for lower slice stopping, so that the stopping efficiency of the lower slice is improved, the access mining production efficiency and the production capacity are greatly improved, and the production cost is obviously reduced.

Description

technical field [0001] The invention relates to a non-coal underground mining method, in particular to a safe and efficient mining method for unstable ore bodies. Background technique [0002] The filling mining method has been widely used in underground mines due to its advantages of high recovery rate, safe operation, and protection of surface features. Commonly used filling mining methods include upward horizontal layered filling method, upward approach filling method, downward approach filling method, subsequent filling mining method, etc., among which the basic characteristics of upward approach filling method are: bottom-up Layered approach (roadway) mining, the mining of each layer is to arrange the approach along the direction or vertical direction with the full height of the layer after the layered contact road is excavated, and the approach mining is carried out at intervals or in sequence, mining one filling one , the entire stratum is mined and filled and then t...

Claims

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Application Information

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IPC IPC(8): E21C41/16
Inventor 张钦礼李大培王新民王文景陈五九陈宪龙何洪涛周磊
Owner 湖北楚磷矿业股份有限公司
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