锚喷加固边坡开挖过程锚杆轴力变化规律分析  

Variation Law of Anchor's Axial Force During Excavation of Anchor-shotcrete Reinforcement Slope

作　　者：田小波[1] 

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550001

出　　处：《交通科技》2012年第5期62-64,67,共4页Transportation Science & Technology

基　　金：黔科合重大专项字(20086013-04)资助

摘　　要：结合某道路高边坡锚喷加固工程,通过数值模拟和现场测试结果,讨论了支护时机与锚杆轴力的相互关系,分析了开挖过程中锚杆轴力的变化特征,指出及时支护时锚杆轴力比滞后支护时锚杆轴力大,下阶坡体开挖时上阶锚杆轴力会产生突变。Taking a high slope anchor-shotcrete reinforcement engineering tas a example,the relationship between supporting time and anchor shaft force is discussed based on numerical simulation and the testing result on the spot.The variation law of the anchor＇s axial force during the excavation of slope is analyzed.Some conclusions are drawn that anchor＇s axial force when supported timely is bigger than that when supported laterly and mutations of anchor axial force will happen when lower slope is excavated.

关 键 词：岩质高边坡 锚喷加固 锚杆轴力 支护时机 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]