本工程为换填级配碎石。

This engineering is change fill macadam.

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土方工程包罗土方的发掘和换填。

This includes excavation and the placement of earth fill.

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实践表明，该工程基础超挖换填处理方法操作简单，施工速度快，且造价相对较低，具有较好的实用价值。

Practice shows that, the method of foundation over dig change and fill in the project is easy to operate, quick with less cost, which has a very good and practical value.

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