碎石排水层加大了结构与碎石的整体质量和刚度，增加了结构的稳定性。
As the overall quality and rigidity of the structure with gravel drainage layer increased, the stability of the structure increased.
沥青稳定碎石排水层作为路面结构的一部分，其力学性能直接影响整个路面的使用性能。
As a part of pavement structure, the mechanical behavior of asphalt treated permeable base (ATPB) affects the performance of roadway directly.
但随着基坑降水的进行，排水层以上各点均受较大影响，并且距离路基表面越近影响越大。
By dewatering of foundation pit, the points above the drainage layer all have a considerable influence and the shorter distance with the subgrade surface the more influence.
垃圾填埋场运行过程中，渗滤液的渗流和生物化学作用，不断影响和改变着排水层的渗透性能。
As landfill site working, biochemical process and seepage of leachate always affect and change drainage layer permeability.
封场覆盖系统是垃圾卫生填埋场建设的重要组成部分，覆盖系统包括气体导排层、土工膜、排水层、植被表土层。
Closure cover system is one of important parts of landfill site construction, it includes landfill gas discharge guiding layer, geotechnical film, drainage layer and plant cover surface soil layer.
贴坡排水层的顶部应高于坝体浸润线的逸出点，超出的高度务使坝体浸润线位于该地区冻结深度以下，且不小于1.5米。
Its top must be higher than dam saturation line's exit point, and the extent exceeded must ensure the saturation line is no less than 1.5 meters below local freezing depth.
贴坡排水层的底脚处必须设置排水沟或排水体，其深度或厚度应使水面结冰后，排水沟(排水体)的下部仍有足够的排水断面。
At the foot of the drainage on embankment slope, there must be a drain, the depth and thickness of which must guarantee enough draining section when the surface is frozen.
贴坡排水层的底脚处必须设置排水沟或排水体，其深度或厚度应使水面结冰后，排水沟(排水体)的下部仍有足够的排水断面。
At the foot of the drainage on embankment slope, there must be a drain, the depth and thickness of which must guarantee enough draining section when the surface is frozen.
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