1) impervious interlayer
不透水隔层
1.
Based on the practical cases of construction,this paper argues that the technical problems of precipitation difficulty in the soft soil containing impervious interlayer can be solved effectively by adopting comprehensive precipitation of light well-point,deep well and sand drain.
结合工程实例,阐明采用轻型井点、深井、砂井综合降水的方法,可以有效地解决含不透水隔层软弱淤泥质土中深沟槽降水困难的技术难题。
2) impervious aquiclude
不透水隔水层
1.
Aiming at foundation pits(of impervious aquiclude)with confined underground water in soft soil area,calculation model for piping based on plastic deformation failure is developed from piping mechanism of soil under foundation pits,and the concept of yield stress ratio & judgement standard of piping for foundation pits are presented.
针对软土地区不透水隔水层承压水基坑,从坑底土产生塑性变形破坏的力学机理出发,建立了基于塑性破坏的承压水基坑突涌计算模型,提出了屈服应力比概念和基坑突涌判断标准。
3) water tightness closure
不透水隔板
5) impervious floor
不透水层 IF
6) gas impermeable barrier
不透气的隔挡层
补充资料：隔水层
隔水层
impermeable layer
geshu!eeng隔水层(in、permeable layer)重力水不能自由透过的岩、土层。致密的岩石和空隙细小的岩石，在常温常压条件下都是隔水层。隔水层对地下水运动起阻隔作用6为合理开发利用地下水，或者为正确评价矿床水文地质条件、确定采矿方法，必须查明隔水层的岩性、厚度、稳定性和隔水程度。隔水层和含水层是相比较而存在的，应结合生产目的而划分。 (蒋建明)
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参考词条