（1）“防排结合“防水设防

(1) "anti platoon combination" waterproof fortification

从国际应用情况来看，“防排结合”防水的可靠度较高，但受制于高昂的直接投入、长期的使用维护成本、施工工期较长和持续降水对临近建筑结构稳定性的影响等因素，在国内民用建筑中较少采用，多见于暗挖隧道。

According to the international application, the waterproofing reliability of the combination of prevention and drainage is high, but it is seldom used in civil buildings, especially in tunnels dug in the dark, because of the high direct investment, long-term maintenance cost, long construction period and the influence of continuous precipitation on the stability of nearby buildings.

（2）“雨衣式”防水设防

(2) raincoat type waterproof fortification

国内传统防水设防类似“雨衣式”防水，立足于如何实现防水层的完整性，如强调“搭接”、“交圈”等，力求防水层能做到“天衣无缝”。很显然，忽视防水层与结构层之间是否粘结风险极大，因为防水层一旦出现任何薄弱点，造成地下水在防水层与结构层之间窜流，足以造成防水系统的局部或整体崩溃，这种情况下防水层形同虚设，渗漏数量完全由结构混凝土裂缝数量决定。

Traditional waterproof fortifications in China are similar to "raincoat" waterproofing, which is based on how to achieve the integrity of the waterproof layer, such as emphasizing "overlap" and "circle" to make the waterproof layer "seamless". Obviously, ignoring the bonding risk between the waterproof layer and the structural layer is extremely risky, because the waterproof layer once there is any weakness, causing groundwater to flow between the waterproof layer and the structural layer, enough to cause the local or overall collapse of the waterproof system, in this case the waterproof layer is nothing, the amount of leakage is entirely from the structural concrete. The number of cracks is determined.

在国内地下室底板采用PVC、SBS和EPDM等是最为典型的“雨衣式”防水，其与垫层粘结，与后浇筑混凝土无法粘结，易产生“窜水”现象，该做法存在地变电阻柜 精密铸造 中频电炉设备 保定断桥铝门窗 保定养老院 镜子批发 启闭机渗漏率高和长期持续堵漏注浆的弊端。

PVC, SBS and EPDM are the most typical waterproofing methods in basement floor in China. They can not bond with cushion, and can not bond with post-poured concrete. It is easy to cause water leakage. This method has the disadvantages of high leakage rate and long-term continuous grouting.

因此，“雨衣式”防水设防并不适合用于以现浇混凝土为主体的防水工程，更适合用于外露式屋面等工程。

Therefore, the "raincoat" waterproof fortification is not suitable for the waterproof projects with cast-in-place concrete as the main body, more suitable for exposed roof projects.