换土垫层厚度设计是换填法地基处理设计的关键。
The design of replacement underlayer thickness is crucial to the replacement method of ground treatment.
通过工程实例，介绍了采用踏步换土垫层法并结合不同强度的填料用来调整控制地基不均匀沉降量处理地基的方法。
Based on a practical project, the author introduces a ground treatment method of step cushion replacement with different intensity substance to control differential sedimentation.
根据盐渍土的特性及实际情况，采用换土法并结合加深基础垫层等方法对地基进行处理是经济可靠和简便易行的。
Based on the character and practical status of salt-affected soil, it is economical, reliable, simple and fesible to adopt changing soil method and to deepen foundation mat to treat the foundation.
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