A multi-stage independent flood drainage system for upstream tailings pond

Abstract

The present invention provides an upstream tailings pond multi-stage independent flood drainage system, which is composed of multi-level sub-flood drainage systems, each sub-flood drainage system consists of 1# flood drainage well, 2# flood drainage well, joint pipe, Concrete base and flood discharge pipe. 2# flood discharge well is located upstream of 1# flood discharge well. The bottom of 1# flood discharge well and 2# flood discharge well are respectively connected to the flood discharge pipe through joint pipes. The joint pipes are buried in the concrete Inside the foundation, the flood discharge pipe discharges the flood water to the adjustment pool outside the reservoir along the horseway or the bottom of the reservoir and the bank slope. The invention reduces the welding range with the anti-seepage membrane and reduces the risk of leakage. At the same time, because the construction does not need to wear the anti-seepage membrane, it can not only be used in new tailings pond projects, but also can be widely used in hidden danger control projects for flood drainage failure Or expansion projects with insufficient flood drainage capacity.

Description

technical field [0001] The invention relates to a multi-stage independent flood discharge system for an upstream tailings pond, belonging to the technical field of tailings ponds. Background technique [0002] In the tailings pond project, the flood drainage system is one of the keys to the safety and environmental protection of the tailings pond. According to relevant statistics, there have been many safety and environmental accidents caused by the failure of the tailings pond flood drainage system in my country. Therefore, the choice of flood drainage system is very important. [0003] At present, the flood drainage systems of domestic tailings ponds mostly adopt the following two types: [0004] Drainage chute: The construction difficulty is small, the requirements for foundation conditions are low, it is easy to build, and it is convenient to operate. This type is often used for new tailings ponds. However, the drainage chute is built in the reservoir basin, which will...

AI Technical Summary

Problems solved by technology

However, shafts are usually relatively high, have strict requirements on the foundation, are difficult to deal with, require high construction technology, are difficult to block, and require a large investment; similarly, once the drainage shaft is partially silted, it will also affect the entire flood drainage system

For example, the invention patent with the publication number CN107780517A discloses a dry tailings pond flood discharge system, which consists of a metal structure flood discharge shaft, a flood control sump, and a return hole, which are similar to the drainage shaft, mainly using the flood discharge shaft The upper and lower combination structure of the metal structure well body and the reinforced concrete well base, and the flood control sump are set around the metal structure flood discharge shaft, which increases the discharge capacity. However, the patented flood discharge shaft has the same disadvantages as ordinary drainage shafts. Also because of its high steel pipe, the connection between the flood discharge steel pipe and the concrete base is susceptible to large deformation due to the lateral pressure of the surrounding slag, which affects the use of

[0006] The above two types of flood drainage systems are mostly used in new tailings pond projects, but are limited in hidden danger control projects or capacity expansion projects, because most of the construction of chutes or shafts needs to be built on mountains or bedrock, and the construction needs to be protected first. After the seepage membrane is lifted, it will be connected to it later, the construction is cumbersome, and it is easy to cause damage to the already laid impervious membrane, affecting the anti-seepage

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