自平衡法在大直径钻孔灌注桩检测中的应用研究

Research on Application of Self-balancing Method in Detection of Large-diameter Cast-in-situ Bored Piles

进入新世纪,我国东南沿海经济发展快速,区域特点为软土地质、河流众多,桥梁建设不可避免,而桥梁的安全离不开钻孔灌注桩的支撑。以某软土地区某桥梁的钻孔灌注桩承载力检测为例,在满足项目要求的基础上比选出了自平衡法检测方案,并为项目的建设提供了支撑,可以为类似项目的大直径、大吨位钻孔灌注桩承载力检测方案设计提供一定价值的借鉴。

Coming into the new century,the economy of the southeast coastal areas in China is developing rapidly.The regional characteristics are the soft soil geology with many rivers.The bridge construction is unavoidable,and the bridge safety cannot be separated from the support of cast-in-situ bored piles.Taking the bearing capacity detection of cast-in-situ bored pile of a bridge in soft soil area as an example,the detection schemes of self-balanced method are compared on the basis of meeting the project requirements,and provide the support for the project construction,which can provide some valuable reference for the design of bearing capacity detection scheme of large-diameter and large-tonnage cast-in-situ bored piles of similar projects.