Comparative Study on Static Load Test Methods of Pile Foundation
In order to further clarify the internal relations and similarities and differences between the fast method and the slow method in the static load test of pile foundation,this paper conducts in-depth research through theoretical research and case analysis.The research results show that the Q-s curves of the two methods can be divided into compaction deformation stage(elastic deformation stage),local shear failure stage(elastic-plastic deformation stage)and overall failure stage(plastic deformation stage).There is a strong correlation between the set-tlement difference under different loads between the fast method and the slow method.According to the content of the case test,this paper gives the empirical formula of the settlement relationship between the fast method and the slow method.
Pile foundation detectionStatic load testFast methodSlow speed methodEmpirical formula