impermeable foundation
常见例句
- The landfill sits on a natural foundation of London clay which is more or less impermeable.
垃圾掩埋场以伦敦黏土为天然地基，其防渗效果极佳。 - When confined aquifer under the bottom of the pit, the foundation excavation will reduce the thickness of overlying impermeable layer.
在基坑底部以下存在承压水层的情况下，基坑开挖减少含水层上覆不透水层的厚度。 - The equilibrium between gravity of the upper impermeable stratum and water pressure is a common calculation method for anti-uprush of foundation pit.
在基坑抗突涌分析中，用上覆土层的重力来平衡水压力是一种常用的计算方法。 - The landfill sits on a natural foundation of London clay which is more or less impermeable.
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