water proof layer meaning in English
防水层
Examples
- In our country , most of bridges were built in 1960s or 1970s , which were based on that time traffic discharge and development planning , so design criterion of these bridges were very lower . in addition , it was inevitable to bring about cracks > concrete rupture , steel rust ^ honeycomb and water proof layer failure , because some established bridges were built by poor construction and maintenance during the course of operating period . all above mentioned lead to durability and bearing capacity could n ' t gain to design standard
由于我国很多桥梁建于上个世纪六、七十年代，基于当时的车流量和各方面的发展规划，桥梁设计等级普遍偏低；另外，某些既有桥梁由于施工质量差和运营期间维护不到位，不可避免地会产生裂缝、混凝土破损、钢筋锈蚀、蜂窝及防水层失效等缺陷，从而导致耐久性及承载力达不到设计要求。 - The phenomena can be observed in the tests low seepage pressures can easily form passageways behind the waterproof layer if there is no drainage layer or the drainage layer is blocked in the single - shell test slab ; the waterproof layer can resist higher seepage pressure if there is no drainage layer or the drainage layer is blocked in the double - shell test slab ; the seepage water can be controlled and drained away in the drainage layer by the water proof layer only if there is unblocked drainage layer behind it in the double - shell test slab
由试验可见，在单层试验板中没有排水层或排水层不通畅时，较低的水压就能在防水膜后形成渗流通路；在双层试验板中没有排水层或排水层不通畅时，防水膜能抵抗一定程度的渗漏水压；只有在双层试验板中的排水层畅通时，防水膜才能有效地将渗漏水控制在排水层中排走。