It is easy to produce cracks in underground galleries of waterproof concrete in course of construction and it is harmful for cracks to structural functions.
防水混凝土地下通廊在施工过程中，易产生裂缝，对使用功能造成很大的影响。
Mass waterproof concrete structure is a main waterproof barrier of underground works. Its technical crux is how to control temperature cracking of the concrete.
大体积防水混凝土结构是地下防水工程中的主要防水屏障，其技术难点是如何控制混凝土温度裂缝。
Through continuous observation summary, damage was found involved in the concrete liner, waterproof layer attached to failure, is the underground waterproof the underlying causes.
通过持续观察总结，发现混凝土垫层破坏牵连所依附的防水层失效，是地下工程防水问题的根本原因。
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