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由于地质条件的复杂性以及计算模型和参数选取等原因,桩-土在水平荷载作用下受力性状难以准确分析计算。通过对某电厂桩基工程在非饱和黄土地层中水平荷载试验,结合桩身应力测试,得到了桩-土共同作用时的工作性状及相互影响。在安全级别较高的工程中,采用原位测试方法确定桩基水平承载力,能有效提高工程质量,降低工程造价。
Due to the complexity of geological conditions and the selection of calculation models and parameters, it is difficult to analyze and calculate the mechanical behavior of pile-soil under horizontal load. Through the horizontal load test of pile foundation engineering of a power plant in unsaturated loess stratum and the pile stress test, the working characteristics and mutual influence of pile-soil interaction are obtained. In projects with high safety level, the in-situ testing method is used to determine the horizontal bearing capacity of pile foundation, which can effectively improve the project quality and reduce the project cost.