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.
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。
Members with circular concrete sections have been used widely for piles in harbor engineering, columns of the building, bridge piers and support piles in deep foundation ditch engineering, etc.
圆形截面钢筋混凝土构件是工程结构中常用的构件之一，如港口工程中的混凝土灌注桩、建筑物的承载柱、桥梁桥墩以及基坑的支护排桩等。
The paper introduces the content, requirement, method of foundation ditch investigation and the treating method for some special situation.
以下介绍验槽的内容、要求、方法以及在施工中所遇到的一些情况及处理方法。
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