Method of Reinforcement of Tailings Accumulation Dam with End Scroll Geogrid

Abstract

The invention discloses a method for reinforcing a tailings accumulation dam with an end scroll type geogrid. The steps are: (1) laying a layer of geogrid on the surface of the sub-dam and dry beach; (2) laying a layer of geogrid on the surface of the geogrid Place the hollow tubes at both ends, then roll up the two ends of the geogrid and wrap the corresponding hollow tubes to form a reel, and then fasten the tendons of the reel one by one with iron wire; (3) carry out the dam Put ore in front to form a tailings accumulation dam; (4) Repeat the steps (1)-(3), laying up layer by layer until reaching the overall height of the tailings dam. The invention increases the reinforcement force, can effectively prevent the geogrid from being pulled out, enhances the stability of the tailings dam body, improves the underground seepage field of the tailings dam, and effectively solves the problem of high tailings accumulation dams faced by mining enterprises. While simplifying the construction plan, the cost is greatly reduced, and it is more suitable for large and medium-sized tailings ponds, earthquake areas or other harsh conditions.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a method for reinforcing a tailings accumulation dam with an end scroll type geogrid. Background technique [0002] At present, almost all mining enterprises in our country have the problem of tailings accumulation and high dams. For tailings with larger particles, the stacking dam method adopted by mining enterprises is usually: [0003] (1) After selecting the tailings dam site according to the total tailings volume, determine the overall height of the tailings dam body and the scale of the initial dam; [0004] (2) After the initial dam is completed, the tailings are flushed and filled between the initial dam and the tailings reservoir by the scattered ore drawing method to form tailings accumulation dams and dry beaches; [0005] (3) Build a sub-dam on the tailings accumulation dam, and then draw ore in front of the dam through the ore-drawing pipe on the sub-dam...

AI Technical Summary

Problems solved by technology

[0008] (1) The stability is poor, the dam is prone to collapse, and the height of the tailings dam is limited;

[0009] (2) The seepage drainage system of the dam body must be specially laid, which requires a large amount of work and a long construction period. At the same time, the construction plan is complicated and the cost is high

[0018] The reinforced terrace method organically applies geotechnical materials (grids) to the we

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