内河港口大直径薄壁空心墩横向承载性能研究

在室内大比尺模型试验的基础上,建立考虑岩层逆层节理分布的薄壁墩数值分析模型。通过大量变动参数的数值计算,详细探讨影响嵌岩灌注墩横向承载性能的各种因素,包括襟边宽度、岩体性状以及外荷载等。通过大量的算例比较,得到薄壁墩与地基相互作用的力学特性及各种因素对薄壁墩横向承载性能的影响程度。

Numerical Study on Transverse Load Bearing Performance of Large Diameter Thin-walled Hollow Pier at River Port

Based on the big scaled model test,the numerical analysis model of thin-walled pier considering rocked joint distribution is established.By means of numerical calculation of fluctuation parameter,the various factors effecting transverse load-carrying properties of rock-socketed cast-in-place pile are well discussed.These factors consist of the boundary width,the rake angle of slope,the property of rock mass,the exterior load of pier.By the vast scale of calculation comparisons,the interacting mechanical character between thin-walled pier and ground and the extent that different factors affect transverse load-carrying properties of thin-walled pier are ob-tained.