水资源与水工程学报
水資源與水工程學報
수자원여수공정학보
JOURNAL OF WATER RESOURCES AND WATER ENGINEERING
2014年
5期
211-214,218
,共5页
隧洞%围岩稳定性%位移变形%应力分布%有限元分析
隧洞%圍巖穩定性%位移變形%應力分佈%有限元分析
수동%위암은정성%위이변형%응력분포%유한원분석
tunnel%stability analysis of surrounding rock%displacement deformation%stress distribution%finite element analysis
隧洞施工过程中的围岩的稳定性分析是工程地质和岩体力学非常重要的研究课题，依据地下结构设计理论和岩石屈服Druck-Prager准则，考虑到了围岩的自身承载能力，采用非线性有限元的方法对羊曲水电站泄洪洞开挖施工过程中围岩的稳定性进行分析，对隧洞围岩开挖支护施工过程进行模拟，分析隧洞围岩位移变形及应力分布规律，为隧洞开挖施工过程中围岩和结构稳定性分析提供依据。
隧洞施工過程中的圍巖的穩定性分析是工程地質和巖體力學非常重要的研究課題，依據地下結構設計理論和巖石屈服Druck-Prager準則，攷慮到瞭圍巖的自身承載能力，採用非線性有限元的方法對羊麯水電站洩洪洞開挖施工過程中圍巖的穩定性進行分析，對隧洞圍巖開挖支護施工過程進行模擬，分析隧洞圍巖位移變形及應力分佈規律，為隧洞開挖施工過程中圍巖和結構穩定性分析提供依據。
수동시공과정중적위암적은정성분석시공정지질화암체역학비상중요적연구과제，의거지하결구설계이론화암석굴복Druck-Prager준칙，고필도료위암적자신승재능력，채용비선성유한원적방법대양곡수전참설홍동개알시공과정중위암적은정성진행분석，대수동위암개알지호시공과정진행모의，분석수동위암위이변형급응력분포규률，위수동개알시공과정중위암화결구은정성분석제공의거。
The stability analysis of surrounding rock in the tunnel process of construction is a very impor-tant research subject of engineering geology and rock mechanics.According to the theory of underground structure design and Druck-Prager yield criterion of rock, Considering the bearing capacity of wall rock itself, the paper analyzed the stability of Yangqu hydropower station spillway tunnel in process of rock ex-cavation construction by use of the method of nonlinear finite element .It also simulated the process of tunnel excavation construction and analyzed the displacement deformation and stress distribution of tunnel surrounding rock.The method can provide the basis for the stability analysis of surrounding rock and structure in the construction of tunnel excavation.
