摘要
以阳泉市白荫支线跨煤矿采空区铁路桥为例,对深厚杂填土地区铁路桥梁桩基础施工方法进行了比选;同时通过Midas建模分析,得到了影响铁路基础刚度提高的关键因素;并针对深厚填土地区特点,计算了桩基础负摩阻力和桩基础承载力,总结了深厚杂填土地区桩基设计采取的措施。
Taking railway bridge of Baimeng Branch Line across mined-out area in Yangquan City as an example, the com- parison of the construction ways of railway bridge pile foundation in deep miscellaneous backfilling area is introduced in the paper, and the influence factors of improving the rigidness of foundation are analyzed by Midas modeling. At last, in view of the features of deep miscellaneous area, the pile foundation bearing capacity and negative friction is calculated and methods of pile foundation design in deep miscellaneous area are summarized.
出处
《铁道建筑技术》
2014年第1期13-16,共4页
Railway Construction Technology
关键词
杂填土
桩柱式基础
刚度
负摩阻
miscellaneous backfilling
pile foundation
rigidness
negative friction
