边坡锚固结构的蠕变特性及其稳定性分析  

ANALYSIS ON STABILITY OF OPEN-CAST MINING SLOPE REINFORCED BY ANCHOR BOLT BASED ON SOIL CREEP CHARACTER

作　　者：刘可定[1] 王军[1] 曹平[2] 周军[1] LIU Ke-ding;WANG Jun;CAO Ping;ZHOU Jun(Hunan Urban Construction College, 411101, Xiangtan, Hu'nan, China;School of Resources and Safety Engineering,Central South University, Changsha, 410083, China)

机构地区：[1]湖南城建职业技术学院,湖南湘潭411101 [2]中南大学资源与安全工程学院,长沙410083

出　　处：《建筑技术》2019年第5期576-578,共3页Architecture Technology

基　　金：国家自然科学基金资助项目(51174228);湖南省自然科学基金资助项目(2019JJ40056);湖南省教育厅资助科研项目(18A345)

摘　　要：为分析土体蠕变特性对锚固性能和受锚边坡稳定性的影响,依据砂浆锚固体与土体的协调变形特征,建立土锚结构的元件蠕变模型。通过分析锚固结构的承载特征,建立砂浆锚固体与土体界面剪应力时变计算式,根据算例验证了边坡中上部是锚杆重点加固范围。The creep model consisted of components is established on the structure of the soil anchor in order to analyze influence of slope stability based on soil creep character and coordinate deformation between mortar anchor solid and soil. According to the coulomb shear criterion, the time calculation formula is established on soil cohesive force and anchor stress. The results show the shear strain rate in the local scope of slope toe is small and along the slope, it is increasing.

关 键 词：边坡工程 蠕变 锚固结构 剪应力 稳定性 

分 类 号：TU375.2[建筑科学—结构工程]