大跨度悬索桥重力式锚碇抗滑稳定性试验研究

Experimental Study on Large-span Suspension Bridge Gravity Anchorage Sliding Stability

重力式锚碇基础的抗滑稳定因地质情况不同而相差较大,在现行《公路桥涵地基与基础设计规范》及《悬索桥设计规范》在锚碇基础抗滑稳定方面的规定不甚详细的实际情况下,金东大桥东川侧(右岸)锚碇在基础施工前,通过1:30几何比例相似模型进行原位相似模型试验,以验证锚碇基础及围岩基础及围岩质量是否满足要求,研究重力式锚碇极限条件下的失效机理,达到优化锚碇设计参数的目的。

stability against sliding of gravity anchorage foundation on the basis of different geological conditions and large difference, in the current highway bridge standard about foundation and foundation design and specification for design of suspension bridge in anchorage foundation stability against sliding of the actual situation of not very detailed, but the bridge dongchuan side （on the right bank） before the foundation construction of anchorage, similar proportions by 1 ： 30 geometry model of similar model tests in situ, to verify that the anchorage foundation and basis of surrounding rock and surrounding rock quality whether meet the requirements, the gravity anchorage failure mechanism under the condition of limit, achieve the goal of the optimization of anchorage design parameters.