成都地铁1号线人工挖孔桩施工技术探讨

摘要

Combining with the practice in the construction of Chengdu No. 1 Metro, the study has the detailed introduction of the craft for the manual hole digging piles, and points out the three suggestions, and indicates the attention should be given to the excavation which should be done at the one side of the hole wall rather than at the hole center in the process of the excavation during the construction of the manual digging pile to prevent the falling rocks by combining with the construction consideration.%结合成都地铁1号线工程实践,对人工挖孔成桩工艺进行了详细的介绍,并根据施工具体体会,提出了3点建议,尤其应注意人工挖孔桩施工过程中,当提升出土时,孔内人员应靠孔壁一侧挖掘,不可在孔中心开挖,防止落石打击。