单桩竖向静载试验异常在某工程中的处理及应用分析

为确保建设工程下部结构桩基础工程承载力的质量安全,采用低应变法先进行工程基桩桩身完整性的普查,再选取桩底反射波异常的桩进行单桩竖向抗压静载试验,对单桩竖向抗压静载试验沉降数据的应用进行分析。结果表明,基桩桩底反射波存在异常的桩对单桩竖向抗压静载试验沉降数据具有一定影响。说明选取桩底反射波存在异常的桩,进行单桩竖向抗压静载试验的沉降数据也存在异常,再通过单桩竖向抗压静载沉降数据异常分析,进而高效地保障基桩工程承载力的可靠性及安全性。

To ensure the quality and safety of the bearing capacity of the substructure pile foundation engineering for the construction project.The low strain method is used to conduct a general survey of the integrity of the engineering foundation pile body.Piles with abnormal reflected waves at the bottom of the pile are selected for vertical compressive static load tests of a single pile,and the settlement data of the vertical compressive static load test of a single pile is applied and analyzed.The results indicate that piles with abnormal reflected waves at the bottom of the foundation pile have a certain impact on the settlement data of single pile vertical compressive static load tests.The selection of piles with abnormal reflected waves at the bottom of the pile indicates that there are also abnormal settlement data in the vertical compressive static load test of a single pile.Through the analysis of abnormal settlement data in the vertical compressive static load of a single pile,the reliability and safety of the bearing capacity of the foundation pile engineering can be efficiently guaranteed.