The results of laboratory tests showed that the apparent preconsolidation pressure of Shanghai clay is higher than the effective overburden pressure.
室内试验成果表明，上海粘土的准先期固结压力较天然有效上复压力大得多。
The statistical results show that the clays have high water contents, and the ratio of their vane test strength vs. the effective overburden pressure ranges from 0.2 to 0.4.
统计表明该浅层软土含水量高、原位十字板剪切强度和有效上覆应力的比值约为0．2-0．4。
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