Abstract：
To reduce the influence of dewatering of foundation pit and large area of earth excavation on surrounding buildings and roads, internal support is usually used in the foundation pit of basement. But waterproof treatment among basement slabs is the biggest difficulty after the internal supporting columns are removed. This construction method combined impervious steel plate and waterproof coiled material together to realize many characteristics, such as strong applicability, low requirements for construction condition, simple and convenient construction and high waterproofing performance, etc. After application in several large domestic projects, it was proved that this method has fast construction speed and favorable waterproof effect. No leakage defect was found in a long period of observation.
SHI Wei-guo,LE Yu,LYU Zhi-peng. CONSTRUCTION METHODS FOR WATERPROOF NODES OF FOUNDATION PIT INTERNAL SUPPORTING COLUMN AND BASEMENT SLAB[J]. Architecture Technology, 2015, 46(7): 639-.
