The manual hole digging pile was adopted in foundation of some building. Granite residual clay was chosen as the bearing stratum of pile tip.

某建筑物基础采用人工挖孔桩，桩端持力层为花岗岩残积粘性土，经检测发现桩身完整而承载力远低于设计要求。

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The applications of large diameter manual hole digging pile in different engineering geological conditions are discussed based upon design examples.

通过设计实例，从理论上探讨了大直径人工挖孔桩在建筑基础设计中的应用。

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In the construction of retaining wall with steep slope grade, manual hole digging piles are adopted in combination with reverse working for ramming reinforced concrete wall panel.

高坡挡土墙施工中采用人工挖孔桩，并结合逆作法捣筑钢筋混凝土墙板的方法，具有无需土方大开挖、无需支撑、施工安全和节约基建投资等优点。

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