因此，从基础埋置深度的确定和基础的验算内容两方面分析明挖扩大基础的设计与计算，具有重要的实践意义。

Therefore, it is meaningful in practice that designs and calculates for open-cut foundation from two aspects which are bury length determining and checking computation contents of foundation.

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明挖扩大基础基坑开挖时，土方采用挖掘机开挖，并由人工配合进行边坡修理、基坑顶面排水沟的修建等辅助工作。

For open spread foundation, the pit is excavated by excavators for earth work with manpower to trim the side slope and build the ditch on top of base pit.

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