在宝山钢厂建设中,遇到桩基水平位移问题,且位移量偏大,小者几十毫米,大者超过300毫米。一些设备基础也产生了不同程度的位移。位移后,桩基承载力如何,成为急待解决的重大技术问题。为此,进行了大量现场调查研究、位移桩变形实测、现场载荷试验及理论分析。 In the construction of Baoshan Steel Plant, the problem of horizontal displacement of the pile foundation was encountered, and the displacement was relatively large. The smaller ones were several tens of millimeters, and the larger ones exceeded 300 millimeters. Some equipment foundations also produce different degrees of displacement. After the displacement, the bearing capacity of the pile foundation became a major technical problem to be solved urgently. To this end, a large number of on-site investigations and studies, displacement pile deformation measurements, field load tests and theoretical analysis were conducted.