Abstract：
Based on the result of software simulation analysis and experimental phenomenon, it is determined failure state of soil around pile , at top and bottom of bearing multi-under-reamed of the push-extend multi-under-reamed pile under vertical tension, according to the punching theory and slip theory, they are analyzed that calculating mode about pullout resistance capacity of the push-extend multi-under-reamed pile, the calculation mode are respectively calculated as soil in the state of shear failure and sliding failure. All of above provide theoretical support for research of pullout resistance capacity of the push-extend multi-under-reamed pile under
QIAN Yong-mei,REN Jia-jia,MU Nan. RESEARCH ON CALCULATION MODEL ABOUT PULLOUT RESISTANCE CAPACITY OF
PUSH-EXTEND MULTI-UNDER-REAMED P ILE[J]. Architecture Technology, 2015, 46(6): 502-504.
