1.College of Water Conservancy &2.Engineering, Zhengzhou University
The National Science Fund for Distinguished Young Scholars
In order to study the different distribution laws of the bearing capacity, the axial forces of the piles shaft and the shaft resistance between the energy pile and the normal pile, the field static load test was carried out. By embedding strain gauges in the piles, the strains of different depths under different conditions were measured. By comparing the similarities and differences among Q-S curves, axial force distribution and shaft resistance of the piles, the analysis shows that The three test piles have the effect of shaft resistance enhancement , when reaching the ultimate load, and the shaft resistance strengthening effect is along the full length of the piles. Besides, the relationship between shaft resistance and relative displacement was investigated, it shows that as the vertical load increases, relative displacement becomes larger, and the shaft resistances gradually became largest , after reaching the ultimate value, due to the soil around pile will slide, the shaft resistance decreases with the relative displacement, the shaft resistance will have softening effect.
王俊林,李钊. 垂直受荷能量管桩受力性状试验研究[J]. 科学技术与工程, , ():复制