论文部分内容阅读
通过现场单桩水平静载荷试验及上拔与水平力组合作用下单桩静载试验,分析了水平荷载作用下不同桩身抗弯刚度灌注桩的变形特性和承载特性,探讨了有、无上拔荷载作用两种情况下单桩水平承载力及变形之间的差异。结果表明:桩身抗弯刚度的大小是影响单桩水平承载力及水平位移、桩顶转角的一个重要因素;当水平荷载较小时,与水平荷载同时作用的上拔荷载对桩的水平位移及桩顶转角无较大影响;而当水平荷载较大时,上拔荷载的主要影响在于降低桩周土体的强度,使得土体的水平位移增大。
Through the static static load test of the single pile and the static load test of the single pile under the combination of the uplift and horizontal force, the deformation characteristics and bearing characteristics of different pile bending stiffness piles under horizontal load are analyzed. The difference between the horizontal bearing capacity and the deformation of single pile under two kinds of pulling loads. The results show that the bending stiffness of pile body is an important factor that affects the horizontal bearing capacity, horizontal displacement and pile top angle of single pile. When the horizontal load is small, the horizontal displacement of piles and the extra- While the top corner of the pile has no significant influence. When the horizontal load is large, the main effect of the uplift load is to reduce the strength of the soil around the pile and make the horizontal displacement of the soil increase.