混凝土铰链排护坡冰推稳定计算方法研究

Research On Calculation Method For Slope Stability Resisting Ice Push With Concrete Hinged Mattress

通过对铰链排护坡在静冰压力作用下的受力分析,提出护坡的两种破坏模式,结合混凝土铰链排的结构特点,分别推导出两种破坏模式的抗冰推稳定安全系数的计算公式。以哈尔滨松花江北岸百里滨江大道工程铰链排护坡的抗冰推稳定计算为例,研究静冰压力对铰链排护坡冰推稳定安全系数的敏感性,指出冻土和暖土间的冰推破坏为控制工况,为类似工程的设计计算提供参考。

Based on the force analysis, two failure mode of slope protection structure were proposed. Then, the safety factor equations of resisting ice push for the two failure modes were deduced by considering of the hinged mattress. Finally, the slope protection structure of the hundred miles of riverside avenue project at the north bank of Songhua River in Harbin, for which, the sensitivity analysis of static ice pressure to the safety factor of resisting ice push with hinged mattress was studied. The results indicated that ice push on the boundary between frozen and warmed soil was the primary factors of slope failure, which could be reference for the similar problem.