Method of Reinforcement of Tailings Accumulation Dam with End Scroll Geogrid

A technology for tailings accumulation dams and geogrids, which is applied in the fields of soil protection, filling, and infrastructure engineering, can solve problems such as poor stability, long construction period, and large engineering volume, and achieve increased reinforcement force, The effect of saving the construction period and simplifying the construction plan

Inactive Publication Date: 2011-11-30
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Method of Reinforcement of Tailings Accumulation Dam with End Scroll Geogrid
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  • Method of Reinforcement of Tailings Accumulation Dam with End Scroll Geogrid

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0041] Such as figure 1 , figure 2 As shown in Fig. 1, the method of reinforcing the larger particle accumulation dam with the end scroll geogrid is as follows: (1) After the sub-dam 4 and the dry beach surface 6 are formed, lay a layer in a certain range of the sub-dam 4 and the dry beach surface 6 Geogrid 1;

[0042] (2) Hollow tubes 2 are placed at both ends of the geogrid 1 along the length direction. The hollow tubes 2 are concrete prefabricated hollow cylinders or seepage plastic pipes. The walls of the hollow tubes 2 are evenly distributed with a number of radial small holes, then roll up the two ends of the geogrid 1, and wrap the corresponding hollow tube 2 to form a scroll shape, and then fasten the tendons of the scroll part one by one with iron wire;

[0043] (3) Utilize the ore-drawing pipe 5 to draw ore in front of the dam to form a tailings...

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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...

Claims

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Application Information

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IPC IPC(8): E02D17/18E02D3/10
Inventor 魏作安尹光志万玲陈宇龙王倩刘海茹
Owner CHONGQING UNIV
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