Construction method of underground large water-flow mine emergency water sump

Abstract

The invention discloses a construction method of an underground large water-flow mine emergency water sump. When in the multi-middle-segment exploitation of a mine, the middle segment at the bottommost part is locally exploited in advance through an open-stope method and a mined-out area is formed as the emergency water sump of the mine; when fragmentary and leftover orebodies under or beyond exploitation exist in a mineral deposit, a set of small production system is formed at a position below the lowest exploitation level by utilizing blind incline shaft or blind vertical shaft exploitation, and the orebodies at a boundary part or the fragmentary orebodies are mined out to leave the mined-out area as the emergency water sump. The capacity of the emergency water sump is designed according to the water permeation capacity of 8-10 hours, the highest elevation of the emergency water sump is below the lowest production level, an inlet thereof is communicated with a haulage roadway at the lowest mining level, a patio is arranged at the upper part of the emergency water pump, and the patio is communicated with a level and an air shaft at the upper middle segment. The emergency water sump not only can have remarkable effect for the emergency capability for water permeation accidents of a limited water source, but also strives for valuable self-rescue time for hours when disasters in the type of unlimited water sources, such as underground rivers, surface water sources, and the like of the mine occur.

Description

technical field [0001] The invention relates to a construction method of an emergency water storehouse in an underground mine, in particular to a construction method for an emergency water storehouse in an underground flood mine threatened by permeable (outburst) water, which can be used in steel, nonferrous metals, gold, chemical industry, It can be flexibly used in coal and other underground flood mines. Background technique [0002] Mine groundwater disaster is one of the five major engineering geological disasters faced by underground mine mining. In recent years, mine water inrush disasters have seriously endangered mine safety production and the safety of life and property, and have reached the level of endangering social stability. [0003] From July to September 2003, there were 13 water seepage accidents that killed more than 10 people; at the end of 1994, the main shaft of Dongguashan Copper Mine in Tongling, Anhui Province was flooded by water inrush many times d...

AI Technical Summary

Problems solved by technology

[0007] In view of the frequent occurrence of underground water inrush disasters in mines and the huge damage to personnel and property, mines currently do not have a set of technical methods that can deal with seepage (outburst) disasters

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