AMERICAN Vehicle Clutch Kit
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First, isolate the water source. The measures for isolating the water source can be divided into two methods: leaving the isolated coal (rock) column waterproof and establishing the water barrier curtain with waterproof.
(1) The coal (rock) column is waterproof. In order to prevent the various streams of water from entering the well when the coal (mineral) layer is mined, a coal (mineral) column of a certain width or thickness is left in the area threatened by water. The size of the waterproof coal (mine) column should be determined by taking into account the water pressure of the aquifer, the amount of water, the mechanical strength and thickness of the coal (mine), and other relevant regulations, and comprehensively determined through practice.
(2) Water-proof curtain belt. The water-proof curtain belt is to pass the pre-made slurry through the angled hole drilled from the roadway to the front, press the crack in the rock layer, the slurry penetrates and diffuses in the pores, and then solidifies and hardens to form a water-proof curtain. The belt serves to isolate the water source. Since the grouting process and the equipment used are relatively simple and effective, it is considered to be one of the effective methods for mine prevention and control of water damage at home and abroad.
Second, the mine water interception. In order to prevent sudden flooding during mining, which may cause flooding accidents in the whole mine, waterproof gates and waterproof walls are usually installed at certain positions in the roadway.
Isolation and interception of mine water
After the water source is detected, it is not possible to release water due to conditions, or it is possible to release water, but it is not reasonable. Waterproof measures should be taken to isolate the water source and intercept the water flow.
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