在潮湿基面上施工，迎水面和背水面均可施工。
In the wet surface of the base construction, positive side and back surface can be the construction.
水中杂物被阻挡在几何形状体的迎水面，水由其他面的孔洞中排泄。
The sundries in water are blocked on the water-side face of the geometric body, and then water can be drained out via the holes of other sides.
结果表明：堵体最大顺河向位移发生在堵体迎水面上，而横向变位值很小。
The result indicates that the maximum displacement along river takes place on the A-A water face of blocking body, the transverse displacement is very small.
试验结果表明，只有将其施作在迎水面时才能使其防水效能得到理想的发挥。
The result shows that its impermeability depends on the position of the layer and its perfect performance can be achieved only when the layer was on the upstream face of underground construction.
除了常用的迎水面防水技术之外，背水面防水则更为困难、在某些条件下甚至无其他方法可代替。
Besides usually adopted positive side water proofing technique, the negative side water proofing is a more difficult and unsubstitutional engineering measure under certain conditions.
除了常用的迎水面防水技术之外，背水面防水则更为困难、在某些条件下甚至无其他方法可代替。
Besides usually adopted positive side water proofing technique, the negative side water proofing is a more difficult and unsubstitutional engineering measure under certain conditions.
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