Vacuum combined with surcharge preloading is a good method to reinforce soft foundation at bridge-head.

真空联合堆载预压法是一种较好的桥头软基处理方法。

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The settlement after unloading the vacuum preloading can only be discovered in vacuum combined with surcharge preloading.

真空卸载时地面沉降增大的现象只可能发生在真空联合堆载预压的情况。

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For calculating the settlement of subsoil improved by vacuum combined with surcharge preloading, a new simplified nonlinear method was proposed.

针对真空-堆载联合预压加固地基的沉降性状，提出一种新的简化非线性分析方法。

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