impermeable foundation
常见例句
- The landfill sits on a natural foundation of London clay which is more or less impermeable.
垃圾掩埋場以倫敦黏土爲天然地基，其防滲傚果極佳。 - 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壓水層的情況下，基坑開挖減少含水層上覆不透水層的厚度。 - The equilibrium between gravity of the upper impermeable stratum and water pressure is a common calculation method for anti-uprush of foundation pit.
在基坑抗突湧分析中，用上覆土層的重力來平衡水壓力是一種常用的計算方法。 - The landfill sits on a natural foundation of London clay which is more or less impermeable.
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