Water rock combined grouting filling stope sedimentation control and water control method

Abstract

The invention discloses a water rock combined grouting filling stope sedimentation control and water control method. The method comprises the steps that an overlying strata is born by depending on a combined structure formed by water, slurry and falling rocks; in the exploitation process of mineral resources in stope, accumulated water is pumped into a temporary water warehouse with certain strength in the stope; after exploitation, a roof strata collapses, stope strata gravel is settled around the temporary water warehouse, slurry grouting is conducted, and the gravel is coagulated together to form a similar dome-shaped supporting body. Accordingly, the accumulated water in the exploitation process is stored for application specially for the condition that a water-bearing stratum is destroyed; meanwhile, by means of the bearing capacity of the water and the temporary water warehouse, the similar dome structure is formed in the strata gravel collapsing space, and the sedimentation control effect on the earth surface is achieved. Accordingly, the method has the effects of water retention, water proofing, sedimentation reducing and the like, filling materials are low in dosage, the cost is low, operation is easy, the engineering effect is significant, the method is suitable for the stratum with the small inclined angle, and the method can be applicable to west water retention exploitation and anti-settlement exploitation of a mining area.

Description

technical field [0001] The invention relates to a method for controlling surface subsidence, processing stope water, and secondary utilization of mining area water in mineral mining, in particular to a water-rock combined grouting filling stope method for controlling subsidence and controlling water, belonging to the field of mine safety and green mining. Background technique [0002] After the mining of mineral resources, due to the instability of the rock formation, the impact on the surface begins to appear, and this impact is destructive, causing large-scale surface subsidence accidents, destroying the surface ecological environment, and endangering the safety of people's lives and property. [0003] Furthermore, in the process of mining mineral resources, the impact on groundwater and surface water is also great. The excavation of the stratum destroys the water flow channels in the rock formation or induces the evolution of channels to intensify, resulting in the loss of...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a water-rock joint grouting method for filling the stope to control settlement and control water, so as to solve many problems such as surface subsidence, waste of water resources, and water damage in the mining process.

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