某拱坝左岸稳定计算分析
摘要：本论文主要进行的是某水库拱坝坝肩的稳定性校核。通过刚体极限平衡法，并结合反力参数法程序分析某水库拱坝坝肩安全性。运用坝肩稳定分析原理，搞清拱坝抗滑稳定的基本概念，对作用在拱坝上的荷载进行分析，了解坝肩稳定计算公式的一些限制条件，应用这些基本原理和假定完成极限平衡分析。参考《浆砌石坝设计规范》，本工程为三等工程，拦河坝建筑物的级别为3级。通过岩石的物理力学性质试验，定出抗剪强度参数，进行拱座稳定计算。选择坝肩稳定计算工况，算出左岸拱座稳定计算成果。得出的结论是某水库拱坝左岸坝肩满足规范要求。
Abstract: This paper is a reservoir arch dam abutment stability check. Through rigid body limit equilibrium method, and the combination of force parameters program analysis of a certain reservoir arch dam safety. Application of dam abutment stability analysis of arch dam stability against sliding principle, make clear the basic concepts, the effects on arch dam load analysis, understand the abutment stability calculation some restricted conditions, the application of these principles and assumed com plete limit equilibrium analysis. Reference “ stone masonry dam design specification “, this project for the three project, dam building at Level 3. Through the rock physical and mechanical properties test, the shear strength parameters, for abutment stability calculation. Selection of dam abutment stability calculation condition, calculate the left bank abutment stability calculation results. The conclusion is a reservoir arch dam left bank abutment can meet the requirements of specification.
主题词：拱坝坝肩 稳定计算分析
Keywords: arch dam abutment stability analysis
1坝肩稳定分析原理概述
1.1基本概念
坝肩岩体的稳定分析是拱坝加固设计中的一个重要内容。首先应对岸坡地形地质条件进行详细和充分的勘探；其次是针对软弱破坏面及容易滑动的块体，研究其失稳时的滑动方向和最可能的滑动面，以及滑动破坏面上的抗剪指标如何采用等。然后进行抗滑稳定计算，找出最危险的破坏面组合和相应的最小安全系数。
先从理论上分析其极限位置，以如图1所示的岸坡形状和拱端总推力R 的位置、方向为例，通过A 点做大致平行于下游岸坡边线的AE 线和平行于拱座面
某拱坝左岸稳定计算分析
摘要：本论文主要进行的是某水库拱坝坝肩的稳定性校核。通过刚体极限平衡法，并结合反力参数法程序分析某水库拱坝坝肩安全性。运用坝肩稳定分析原理，搞清拱坝抗滑稳定的基本概念，对作用在拱坝上的荷载进行分析，了解坝肩稳定计算公式的一些限制条件，应用这些基本原理和假定完成极限平衡分析。参考《浆砌石坝设计规范》，本工程为三等工程，拦河坝建筑物的级别为3级。通过岩石的物理力学性质试验，定出抗剪强度参数，进行拱座稳定计算。选择坝肩稳定计算工况，算出左岸拱座稳定计算成果。得出的结论是某水库拱坝左岸坝肩满足规范要求。
Abstract: This paper is a reservoir arch dam abutment stability check. Through rigid body limit equilibrium method, and the combination of force parameters program analysis of a certain reservoir arch dam safety. Application of dam abutment stability analysis of arch dam stability against sliding principle, make clear the basic concepts, the effects on arch dam load analysis, understand the abutment stability calculation some restricted conditions, the application of these principles and assumed com plete limit equilibrium analysis. Reference “ stone masonry dam design specification “, this project for the three project, dam building at Level 3. Through the rock physical and mechanical properties test, the shear strength parameters, for abutment stability calculation. Selection of dam abutment stability calculation condition, calculate the left bank abutment stability calculation results. The conclusion is a reservoir arch dam left bank abutment can meet the requirements of specification.
主题词：拱坝坝肩 稳定计算分析
Keywords: arch dam abutment stability analysis
1坝肩稳定分析原理概述
1.1基本概念
坝肩岩体的稳定分析是拱坝加固设计中的一个重要内容。首先应对岸坡地形地质条件进行详细和充分的勘探；其次是针对软弱破坏面及容易滑动的块体，研究其失稳时的滑动方向和最可能的滑动面，以及滑动破坏面上的抗剪指标如何采用等。然后进行抗滑稳定计算，找出最危险的破坏面组合和相应的最小安全系数。
先从理论上分析其极限位置，以如图1所示的岸坡形状和拱端总推力R 的位置、方向为例，通过A 点做大致平行于下游岸坡边线的AE 线和平行于拱座面