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本文主要阐述了桩基负摩阻力产生的原因机理,并以灌河大桥GH-2标南接线软基处理PC管桩为例对负摩阻力进行计算,依据结算结果和实际施工条件对如何在施工中减少或消除负摩阻力的影响采取相应的防治措施。
In this paper, the cause and mechanism of negative skin friction of pile foundation are mainly elaborated. Negative frictional resistance is calculated by treating PC pipe pile with GH-2 standard south soft foundation of Guanhe River Bridge. Based on settlement results and actual construction conditions, Reduce or eliminate the impact of negative friction during construction to take appropriate preventive measures.