Method for optimizing waste rock field revetment by using solidified filling materials

Abstract

The invention relates to the technical field of mine waste rock field revetments, in particular to a method for optimizing a waste rock field revetment by using solidified filling materials. The method comprises the following steps of: constructing 3 to 5 stepped wave-like blocking minordam groups, which adopt the filling materials, are around the whole side slope of the waste rock field revetment, wherein the top horizontal heights of the blocking minordam groups are decreased progressively and sequentially and the filling materials are prepared by mixing chats with particle size range of between 15 mm and 30 mm, tailing sand, a high-moisture rapid-hardening curing agent and water; and constructing a strong slag-block dam with height of 2+ / -0.5 m and width of 1+ / -0.5 m, wherein the dam bodies of the blocking minordam groups have right-angled triangle shapes and have sharp upper parts and wide lower parts, the vertical surface faces the side slope, the slope surface is back on to the side slope, the dam body of each blocking minordam has higher blocking property than the last blocking minordam, and the lever heights of the dam bodies successively increase 10 to 20 cm. The method has the advantages of low cost, capacities of preventing disaster and guaranteeing safety of the waste rock field revetment, and easiness in popularization. A great deal of solid waste tailings sand is utilized, so virtuous cycle, namely 'wastes are prepared from wastes and multiple benefits are achieved' is formed, and social and economic benefits are remarkable.

Description

technical field [0001] The invention relates to the technical field of slope protection for rock drainage pits in mines, in particular to a method for optimizing slope protection for rock drainage pits with consolidated filling materials. Background technique [0002] With the rapid expansion of the development scale of mineral resources, the amount of rock removal in mines has increased significantly, and the scale of rock removal fields has also become larger and larger. As a place for stacking and stripping waste rocks in open-pit mines, rock drainage yards can be divided into railway rock drainage yards and automobile rock drainage yards according to their rock drainage transportation methods. Generally, the single step height of the railway rock drainage field is 20-40 m, and the total height is more than 80 m; the step height of the automobile rock drainage field is 50-60 m, and the total height is more than 100 m. Both methods will form a larger slope. The materials ...

AI Technical Summary

Problems solved by technology

However, the cost of these engineering measures is very high, the amount of engineering construction is large, and the process is complicated.

For example: the construction of the slag retaining dam requires a large amount of construction and complicated procedures, consumes a lot of cement, is very expensive, and is not easy to maintain

[0004] Through the induction and research of various forms of disasters, it is found that the root cause of these disasters is that the existing disaster prevention technology for slope protection of rock drainage fields is not perfect, the cost is high, and it is not easy to popularize

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