【摘要】 坝陵河大桥地处高山峡谷地区,西岸是坡高300 m的顺向坡,为了保证大桥顺利施工和长期运行,准确评价西岸边坡在降雨、大桥荷载、地震作用下的稳定性显得尤为重要。首先对西岸边坡的结构类型、结构面与坡面的组合、岩体风化及物理力学性质等特征进行了研究;然后在边坡岩体质量分级基础上,进行了降雨条件下自然边坡稳定性研究;最后利用FLAC 3D数值模拟软件,对自然边坡在自重、大桥荷载和地震作用下的工程效应进行了分析。工程效应研究结果表明,桥位具备建桥条件。更多还原

【Abstract】 Baling River bridge is located in the alpine gorge area.Its west bank is a dip slope with 300 m height.In order to ensure the bridge construction and operation,it is important to analyze the slope stability under the condition of rain,bridge load and earthquake.Firstly,characteristics of the west bank slope were studied such as the structure type,the combination of structural plane and slope surface,the weathering of rock mass and the physical and mechanical properties.Secondly,based on the slope rock mass quality classification,the slope stability was analyzed under rain.Finally,the slope engineering effect under slope gravity,bridge load and earthquake was researched by FLAC3D numerical simulation software.It is concluded that the site is suitable for building bridge.更多还原