岩石高边坡弯曲破坏的力学分析  

A force anlysis of flexural failure of high rockmass slope

作　　者：谷拴成[1] 张士兵[1] 

机构地区：[1]西安科技学院建筑与土木工程学院,陕西西安710054

出　　处：《西安科技学院学报》2003年第1期10-13,26,共5页

摘　　要：采用梁的受力模型,结合燕子垭岩石高边坡的现场实际,分析顺层岩石高边坡的破坏机理。指出岩体的自重和静水压力是致使岩石高边坡发生弯曲破坏的主要因素,风化和蠕变的发展减小了岩体强度和岩层的粘接力,促进了岩体边坡的破坏,是使岩体高边坡发生弯曲破坏的次要因素。根据论文分析,提出了对该类边坡做挂网喷射混凝土封闭和安设灌浆锚杆、预应力锚索的加固建议。Adopting the beam force model and thinking about the Yanaiya high rockmass slope on site, the paper anlysises the failure mechanism of the bedded rockmass dipping along slope. Pointing out the rockmass's weight and the water pressure are the two main factors leading to rockmass's failure, the airslake and creep as the subordination ones accelerate the failure by reducing the rockmass's strength and the felt force between two rock layers. In according with the anlysis, suggesting the support measures with ejecting concrete and installing anchors or prestressed strands.

关 键 词：顺层岩体边坡 弯曲破坏 蠕变 风化 

分 类 号：TU457[建筑科学—岩土工程]