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京沈北线广仁岭隧道,全长388米,交通量在5000次/日以上。由于设计上没有考虑防水问题,施工中浇筑的混凝土有漏捣现象,隧道漏水严重,每逢冬季便形成较大冰溜,严重影响行车的安全和隧道的使用寿命。为解决这一弊端,确保车辆畅通,1987年我们用氰凝灌注对隧道漏水现象进行了治理,并取得了成功,具体做法介绍如下:
Beijing-North Line Guangrenling tunnel, a total length of 388 meters, traffic in 5000 times / day or more. As the design did not consider the issue of waterproofing, concrete pouring pumped construction phenomenon, the tunnel leaks serious, every winter will form a large ice, seriously affecting traffic safety and tunnel life. In order to solve this problem and ensure the smooth flow of vehicles, we used the cyanidation perfusion to cure the tunnel leakage in 1987 and achieved success. The detailed introduction is as follows: