框架梁防护技术在公路岩质边坡中的应用  

The frame structure protection used in highway rock slope

作　　者：郭永建[1] 谢永利[1] 潘明慧[2] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]中国水电顾问集团华东勘测设计研究院,杭州310014

出　　处：《广西大学学报（自然科学版）》2010年第4期610-614,共5页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(59879021);国家西部交通建设科研项目(2009310000003);国家西部交通科技建设项目(200631881291);交通部西部交通建设科研项目(2009310000003)

摘　　要：针对公路岩质高边坡在公路建设卸荷过程中所产生的影响,采用有限元数值模拟技术对边坡稳定性进行分析。通过实例计算分析,得出未防护边坡的稳定性较差,应用锚杆框架梁支护的边坡稳定性较好,尤其在降雨情况下该防护技术起到了很好的作用;现场试验的钢筋应力计与混凝土应变计的数据显示,边坡防护时处于弹性运营范围,增设锚杆框架梁的防护措施在边坡运营中得到了很好的效果。Finite element analysis was employed to study the effect of unloading on the stability of highway rock slope. Calculation results showed that slope unprotected was unstable, while the stability of the slope protected with anchor frame beam was raised, especially in rainfalls. The data measured by the reinforcement stress gauges and concrete strain gauges showed that the operation of slope was in elastic range and the protection measure, such as anchor bolt frame, used in highway rock slope was effective for engineering reinforcement.

关 键 词：岩质边坡 锚杆框架梁 钢筋应力计 强度折减法 安全系数 

分 类 号：TU416.14[建筑科学—岩土工程]