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通过群桩水平承载力现场试验和数值模拟的对比分析,确定了数值计算在管桩水平承载特性研究中的合理性和适用性,并着重分析了桩径、土体模量和竖向荷载对管桩群桩水平承载特性的影响规律,研究结果表明,群桩效应系数随着桩径、土体模量和竖向荷载的增加逐渐增大,数值计算得到的群桩效应系数高于规范法,研究结果可为群桩在设计和施工过程中提供参考和指导。
Based on the comparative analysis of the field tests and numerical simulations of the horizontal bearing capacity of pile groups, the rationality and applicability of numerical calculation in the study of horizontal bearing capacity of pipe pile are confirmed, and the influences of pile diameter, soil bulk modulus and vertical load on The results show that the pile group effect coefficient increases with the increase of pile diameter, soil mass modulus and vertical load. The numerical calculation of the pile group effect coefficient is higher than the standard method , The results of the study can provide reference and guidance for pile group in the design and construction process.