期刊论文

Deng, Z.-W.(zw-deng@126.com)

中文

岩土力学

1000-7598

2008

29

3

752-758

10.3969/j.issn.1000-7598.2008.03.033

湖南省交通建设重点实验室开放基金资助项目（No.200501）；

本校为第一且通讯机构

桥基岸坡的稳定性分析是跨谷桥梁设计计算中最为关键的问题之一。过去常把桥基岸坡简化成平面问题来分析，事实上桥基岸坡空间效应显著，简化成平面问题过于牵强。采用三维数值方法，结合有关传统理论和经验公式，对桥基加载前后的整体稳定性系数、桥基的合理位置、单桩的极限受力进行了综合分析，并据此指出应加固的部位和提出相应的加固措施。同时也跳出了以单一稳定性系数作为评价桥基岸坡是否稳定的圈子，通过合理考虑桥梁基础位置与基础受力等因素，提出了一种综合评价桥基岸坡稳定性的新方法。该方法可以根据坡体形式、地质条件、桩型、桩间距、桩长、荷载大小和施工阶段进行应力、变形和...

There are many important problems to be calculated in designing a spanning bridge in mountainous area, one of which is how to calculate the stability of bridge foundation slope. It used to be degenerated into plane problem. In fact, steric effect of bridge foundation slope is obvious. Adopting three-dimensional numerical method, combining traditional theories and empirical formulas, this paper synthetically analyzed the stability of bridge foundation before and after loading; reasonable position of bridge foundation, and the limit stress of piles. Hereby, it indicated reinforced position, and ...