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地下建筑长期承受地下水的侵蚀作用和渗透作用,防水效能如何,直接影响着结构的安全使用功能和整个建筑物的耐久性。目前,我国的地下防水施工技术有多种形式,但最长见的是防水混凝土外贴卷材防水层这种所谓“双保险”结构。其中,防水混凝土结构是最重要的一种防水形式。因为卷材防水层必需依附在结构本体上,而且因受各种因素作用逐渐老化、
Underground buildings are exposed to the erosion and penetration of groundwater for a long period of time. The effectiveness of waterproofing directly affects the safe use of the structure and the durability of the entire building. At present, there are many forms of underground waterproof construction technology in China, but the longest one is the so-called “double insurance” structure of a waterproof concrete exterior waterproofing layer. Among them, the waterproof concrete structure is the most important form of waterproofing. Because the waterproof layer of the coil must be attached to the structural body, it is gradually aging due to various factors.