复杂地质条件下桩基施工方法及质量控制

Construction Method and Quality Control of Pile Foundation under Complex Geological Conditions

随着我国西部城市土木工程设施不断地建设与发展,复杂地质环境大大增加了桩基的施工难度。本文针对延安至延川高速公路一期工程中高昴湾小桥、李渠小桥及通道所处的粉砂层、圆砾层等复杂地质条件特点,采取了钻孔灌注桩施工方法,同时探索了桩基施工的质量控制手段及风险防范措號,为今后的桩基工程施工提供一定的参考和借鉴。

With the continuous construction and development of civil engineering facilities in western China,the complex geological conditions have greatly increased the difficulties of construction of pile foundations.In this paper,in term of the characteristics of complex geological conditions such as silt layer and round gravel layer in the Zhonggaowan and Liqu small bridges and passages in the first project of Yangao-Yanchuan highway,the bored pile engineering method was adopted.Meanwhile,the quality control methods and risk prevention measures of pile foundation under complex geological conditions were explored,which will provide some references for the construction of pile foundation engineering in the future.