Based on the engineering practice, this paper introduced constructional technique and quality assurance measures of big bore hole digging and pouring with expansion pile head.

通过工程实例，介绍大孔径扩大桩头人工挖孔灌注桩的施工方法及质量保证措施。

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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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We need to make sure that all Americans, not just the folks who happen to work on Wall Street, feel that we are digging ourselves out of the hole,"

VOA: standard.2009.12.05

Bush frantically tried to rescue his brother, by standing in the hole and digging at the rubble with a shovel until police arrived and pulled him out, saying the floor was still collapsing.

CNN: Florida calls off search for man swallowed by sinkhole

Bush frantically tried to rescue his brother, Jeff Bush, by standing in the hole and digging at the rubble with a shovel until police arrived and pulled him out, saying the floor was still collapsing.

CNN: A loud crash, then nothing: Sinkhole swallows Florida man

The first thing to do when digging a hole too deep is to stop digging.

CNN: Suffering from sequester burnout? You're not alone