京沪高速铁路CFG桩质量检验及通病防治研究

摘要

In order to ensure that the pile body quality and integrity of CFG meet the requirements of design and test standard, in each work area, in the stage of test pile, the piles are validated by low strain testing and excavation to directly determine the type of defect pile. The causes of CFG pile defects are studied in various abnormal cases in different geology and construction condition, to determine and perfect the reasonable construction technology standard, and to strengthen quality control.%为确保CFG桩桩身质量、完整性满足设计及验标要求，各工区在试桩阶段，通过低应变检测、开挖进行验证，直观确定缺陷桩的类型，研究在不同地质，施工中出现各种异常情况下，造成CFG桩缺陷的原因，以确定并完善合理的施工工艺标准，加强质量控制。