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Study on Waterproofing Techniques in Tunnel Construction Ke-Fei Li Beijing Jiaotong University, Beijing, China. Synopsis Water ingress in tunnel not only will shorten the durability of concrete lining and reduce the function of establishments in the tunnel, but also will worsen the tunnel surrounding so much that the traffic will be greatly affected. Besides, water leakages in tunnels often affect the outside appearance and endanger the operation safety, even cause the non-uniform settlements of surface structures. Waterproofmg is very important during tunnel construction. However, in China, tunnel waterproofmg requirements and standards for various special uses are considerably different, and the basis on which engineers apply water-control design is insufficient. Especially in mountainous regions, poor geological conditions compel engineers to devise more reasonable methods to step water seepage, and even leakage. As a result, many topics related to waterproofmg including the theoretical basis for water-control design, optimization of waterproof measures, and rationality of tunnel waterproof system require further investigation. Top Key words Tunnel, Waterproofing, Water Infiltration, Waterproof Criteria, Drainage Waterproofing. Top | |
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