The Influence of Counterweight Platform Load of Foudation Pile Bearing Capacity in Soft Soil Area

Combined with pile internal force test, super-tonnage static load test was proceed in soft soil area where a project in Nansha, Guangzhou as an example, which discuss and analyze the effect of bearing capacity of test pile heaped load for different test supports treatment methods.Negative friction resistance appears on the pile side during the process of loading on the counterweight platform by replacing the cushion course processing foundation of supports.The maximum axial force of pile measured during static load test is obviously greater than the load applied by jack. However, the negative friction resistance wasn’t appeared by the process foundation of supports combined braced pile and pile cap. Last but not the least, axial force of pile is decreasing from the top of pile to the bottom resonably after the process of loading.The results show that super-tonnage static load test process in soft soil area, adopt measure that the process foundation of supports combined braced pile and pile cap to reduce the influence of stacked load on pile bearing capacity.