Process for constructing substrate dam of refuse dump

Abstract

The invention relates to a process for constructing a substrate dam of a refuse dump, which comprises the following steps that: (1) a ladder-shaped substrate dam is constructed vertical to the gradient direction of a refuse dump within the range of the refuse dump, wherein the substrate dam is constructed by hard stone blocks and concrete, and the substrate dam is an isosceles trapezoid; (2) the position of the dam foundation of the substrate dam is provided with a water drain hole, and the position of the water drain hole of the substrate dam at the bottommost position of an elevation is excavated with a water drain ditch; and (3) a water guide ditch is excavated between the water drain ditch and a water accumulation pool, an outlet of the water drain ditch of the substrate dam is connected with the water guide ditch, an outlet of the water guide ditch is connected with the water accumulation pool, and the water of the water drain ditch is gathered at the water accumulation pool by the water guide ditch. The process for constructing the substrate dam of the refuse dump has the following advantages that: because the position of the dam foundation of the substrate dam is provided with the water drain hole and the water drain ditch is also excavated at the position of the water drain hole of the substrate dam at the bottommost position of the elevation according to the process for constructing the substrate dam of the refuse dump, the occurrence of the phenomena of landslide of the refuse dump and collapse of the refuse dump, which are caused because of the immersion of the refuse dump in the accumulated water, is effectively prevented according to the process for constructing the substrate dam of the refuse dump, and the accumulated water of a substrate of the refuse dump is also gathered and stored for other purposes.

Description

technical field [0001] The invention belongs to the technical field of tailings dams in metallurgical mines, and in particular relates to a construction process for a foundation dam of a dump site. Background technique [0002] Surface mining involves stripping the overburden and rock that overlies and surrounds the deposit and transporting it to a dump. There are many ways to maintain the stability of the dump, such as setting gabions at the bottom line of the slope, setting safety steps, and laying anti-slip retaining walls. At present, the process of strengthening the stability of the dump site: ① "Gabion" is to cover several large stones with barbed wire and make them into one. The base caused corrosion, causing the dump to collapse. ②Set certain safety steps every certain height to keep the dump site stable, mainly to prevent landslides. ③ Pre-pile solid and large rocks at positions where potential sliding surfaces may occur. After the dump is formed, it becomes ...

AI Technical Summary

Problems solved by technology

① and ④ are to strengthen the stability of the dump site by controlling the base of the dump site, but the strength is not enough; the main function of ② is to prevent landslides; ③ prevent landslides in the dump site by preventing the slip surface from running through; Solve the problem of landslides due to the poor drainage function of the base of the dump and the immersion of accumulated water, which induces the base of the dump to be weak and lead to insufficient bearing capacity

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