4. Against the avalanche Foundation pit: Determine the perimeter Foundation soil by digging pile range back gauge, grounded on natural elevations of each nail use size to try to measure the depth. After digging machine to the top of the foundations of the workforce conducted manually digging from there back down to the high steel nail blister To avoid missing the sạt nails, the nails to create me Connie. The handling of groundwater using pumps and drainage systems the entire online and locally for each nail. Special cases when the soil is too weak or the mud flows, the contractor used piles of fabric combinations embankment geology and bentonít additives to prevent avalanche.
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