岩土混合边坡预应力锚杆支护数值模拟:以深圳金园路边坡为例  

Numerical simulation of prestressed bolt support for rock-soil mixed slope:A case study of Jinyuan Road slope,Shenzhen

作　　者：葛长山 韩雷 陆正 王凯[2,3] 陈辉[2,3] Ge Changshan;Han Lei;Lu Zheng;Wang Kai;Chen Hui(Anhui Institute of Geophysical and Geochemical Prospecting Techniques,Hefei 230022,Anhui,China;China University of Geosciences(Wuhan),Wuhan 430074,Hubei,China;Three Gorges Research Center for Geohazards,Ministry of Education,Wuhan 430074,Hubei,China)

机构地区：[1]安徽省地球物理地球化学勘查技术院,安徽合肥230022 [2]中国地质大学(武汉),湖北武汉430074 [3]教育部长江三峡库区地质灾害研究中心,湖北武汉430074

出　　处：《地质学刊》2023年第1期106-112,共7页Journal of Geology

基　　金：国家自然科学基金项目“考虑跨尺度结构空间变异性的库岸堆积层滑坡失稳机制研究”(41807271)。

摘　　要：预应力锚杆支护是一种较新型的锚固技术,但实际工程设计都偏保守,造成经济浪费,因此实际设计过程中存在诸多预应力锚杆参数优化问题。使用有限元分析软件Abaqus模拟锚杆长度、锚固角度、预应力、直径诸因素的变化对边坡稳定性的影响趋势,通过正交试验优化设计得出最优组合方案,为预应力锚杆的相关设计提供科学参考,避免工程建设的安全隐患或不合理投资。Prestressed bolt support is a new bolting technology,but the actual engineering design tends to be conservative,resulting in economic waste,so there is much room for optimizing actual design process of prestressed bolt parameters.Finite element analysis software Abaqus was used to simulate the influence trend of the changes of bolt length,bolting angle,prestress,diameter and other factors on the slope stability,and the optimal combination scheme was obtained through orthogonal test optimization design,which can provide scientific reference for the related design of prestressed bolt and avoid the safety hazard or unreasonable investment in engineering construction.

关 键 词：岩土混合边坡 预应力锚杆 正交设计 有限元分析 

分 类 号：P642.22[天文地球—工程地质学]