针对目前城镇电网线路改造中采用的新型钢管桩，选择典型场地区域进行钢管桩基础现场真型试验研究，获得钢管桩基础的水平承载力、抗拔与抗压承载力，为其在城网建设和改造中广泛、安全应用提供了第一手技术资料，为今后类似工程提供参考。

Field prototype tests are carried out for the newly steel pile foundation during the transformation of country network. The horizontal bearing capacity, the uplift capacity and compressive capacity are obtained. The peculiarities and application modes of the newly steel pile foundation are recommended in emphasis to be referred for similar engineering hereafter.