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桥梁主墩位置的岸坡稳定状况决定了桥梁的桥型方案和孔跨布置,因此桥墩所在位置的岸坡稳定性分析具有极大的必要性和重要性。目前稳定分析方法主要有Janbu法、Bishop法、传递系数法、Morgenstern-price法、Spencer法、FLAC拉格朗日快速有限差分法、强度折减方法等,本文依据规范和贵州省工程经验,提出了岸坡稳定性安全系数控制工况和控制标准,采用规范推荐的Bishop法对两岸岸坡稳定性进行了计算分析,为类似工程提供了一定的参考。
The stability of the bank slope at the position of the bridge main pier determines the bridge type scheme and the hole span arrangement of the bridge. Therefore, it is extremely necessary and important to analyze the stability of the bank slope where the piers are located. At present, the methods of stability analysis include Janbu method, Bishop method, transfer coefficient method, Morgenstern-price method, Spencer method, FLAC Lagrange fast finite difference method and strength reduction method. Based on the norms and the engineering experience of Guizhou Province, The slope stability safety factor control conditions and control standards were adopted, and the Bishop method recommended by the standard was used to calculate and analyze the stability of the bank and slope of the two sides of the bank, providing some references for similar projects.