1) hollow area
淘空区
1.
One of which is made hole of hollow in a base of floodgate where can be lead to piping in flood, as has been work for a time, the base layer is produced strong permeate area and hollow area under the high/low water level difference.
闸底地基垫层在水闸上下游水位差的作用下,经一段时间的运行后,往往会形成强渗流层和淘空区,洪水到来时便产生管涌,危及水闸的安全运行和人民的生命财产安全。
2) buffer underrun
缓冲区淘空
3) erode
[英][ɪ'rəʊd] [美][ɪ'rod]
淘空
1.
In this article, facing the problems that the impacted and eroded parts are behind the deflector bucker which behind the overflowing dam and that the parts are in Under-Water work condition , we introduce the engineering technology of repairing the parts.
水工建筑物的病害很多,针对不同的病害有不同的工程处理方法,本文针对溢流坝消力戽后冲刷、淘空的特殊部位以及该部位处于水下的特殊施工条件,介绍了对这些部位进行水下修补的工程技术问题。
4) sea wall hollowing
海堤淘空
1.
The bathymetric survey is a reliable method for finding the sea wall hollowing.
介绍了黄河三角洲海堤淘空的监测方法和工程防范措施。
5) hollow bottom of dyke
堤脚淘空
6) air elutriation
空气淘析
补充资料：淘空
1.耗费净尽。
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