Numerical Simulation Analysis of Horizontal Bearing Behavior of Helix Stiffened Cement Mixing Pile
Helix stiffened cement mixing pile(HSCMP)is a rigid composite pile type that com-bines rigid screw piles and flexible cement-soil piles to form complementary reinforcements.Ai-ming at the horizontal bearing performance of HSCMP,a numerical analysis model was estab-lished,and parametric analysis was carried out to study the ratio of cement-soil unconfined com-pressive strength to the undrained shear strength of soil around the pile(qu/Su),the blade diam-eter to the pile diameter ratio of the screw pile(D/d)effects on the horizontal load-displace-ment curve,pile displacement,and pile bending moment of HSCMP.The results show that the pile displacement and bending moment of HSCMP gradually decrease with the increase of qu/Su and D/d;the horizontal ultimate bearing capacity of HSCMP increases linearly and then tends to be stable with the increase of qu/Su.It increases approximately linearly with the increase of D/d,the HSCMP normalized horizontal ultimate bearing capacity correction calculation formula is proposed.
万方数据
维普
