对地下工程防水设计原则的思考

Reflection on Waterproofing Design Principle of Underground Works

地下工程防水有其自身的特殊性,不应照搬屋面防水的做法。设计时,应以结构形式合理为前提、“刚柔相济”为原则。即以混凝土结构自防水为根本、柔性防水层为辅助;在尽量保证混凝土自身抗裂和耐久性的前提下,根据需要在局部或全部迎水面设置柔性防水层。

The waterproofing of underground work has its own distinctiveness,and should not simply follow the practices of roof waterproofing.Reasonable structure should be the premise,and the integration of rigid and flexible waterproofing should be the principle for the underground waterproofing design,i.e.,taking concrete structure self-waterproofing as fundamental,and flexible waterproofing layer as auxiliary;setting up flexible waterproofing layer for parts of or all the water facing sides according to the need,on the premise that the crack resistance and durability of the concrete itself is maximumly guaranteed.