摘要
以龙塘山 2号大桥为工程背景 ,在综合考虑桥基岸坡的工程地质条件尤其是岩体结构的基础上 ,建立了数值分析模型 ,采用离散元法对该桥 10 #墩所处岸坡的破坏模式进行了模拟。模拟结果表明 :( 1)龙塘山 2号大桥 10 #墩所处岸坡基本稳定 ;( 2 )施工时 ,应对既有公路上方岸坡坡顶及坡面可能崩滑岩块进行预清除与加固 ;( 3)根据岸坡破坏趋势可得其稳定坡角为 5
Based on the local engineering geological conditions, especially the structure of rock mass, of the bank slope of No.2 Longtangshan Bridge,a corresponding numerical model is established.Then through the discrete element method,the failure mode of the bridge bank slope is simulated.The simulation results indicate:(1)the whole bridge bank slope is basically stable;(2)during construction, the rock blocks on the slope surface and bank top which are possible to collapse or slide should be cleared away and reinforced ;(3)according to the failing tendency,the stable slope angle of this bridge bank is confirmed to be 50o.
出处
《地质灾害与环境保护》
2001年第4期67-70,79,共5页
Journal of Geological Hazards and Environment Preservation
关键词
岩石边坡
岩体结构
破坏模式
离散元
数值模拟
rock slope
rock mass structure
failure mode
discrete element method
numerical simulation
