山城道路路基高边坡防护中锚杆框架梁技术应用研究  

RESEARCH ON APPLICATION OF ANCHOR FRAME BEAM TECHNOLOGY IN HIGH SLOPE PROTECTION OF ROADBED IN MOUNTAIN CITY

作　　者：谭名燕 刘丽强[1] 李根杨 杨峻 祝明鑫 Tan Ming-yan;Liu Li-qiang;Li Gen-Yang;Yang Jun;Zhu Ming-xin

机构地区：[1]中国建筑第二工程局有限公司西南公司,重庆400023

出　　处：《建筑技术开发》2023年第9期108-110,共3页Building Technology Development

基　　金：中建二局科技资助:排水管网设计施工检测修复关键技术研究(2021ZX180001)。

摘　　要：以忠县银山安置点连接道一路项目为例,对锚杆框架梁技术在路基高边坡防护中的应用展开论述,该项目路基高边坡分三线:即A线K1+260~460,边坡最大高度为38.8 m;B线K0+400~K0+460,边坡最大高度为37.46 mm;C线K0+200~K0+260,边坡最大高度为40.7 m。均按1∶1.25放坡设置锚杆框架,因为边坡高度大且位于山区,边坡开挖及支护难度大,故通过开挖一级防护一级、工厂预制锚杆、锚孔孔底返浆法、现浇框架等技术措施进行锚杆框架梁施工,最终取得了预期效果。This paper takes Zhongxian Yinshan resettlement site Connecting First Road project as an example to discuss the application of anchor frame beam technology in the protection of roadbed high slope.The roadbed high slope of this project is divided into three lines:A line K1+260~460,the maximum height of the slope is 38.8 m.Line B K0+400~K0+460,the maximum height of the slope is 37.46 mm;C line K0+200~K0+260,the maximum height of slope is 40.7 m;The bolt frame is set according to 1∶1.25 slope.Because the slope is high and in the mountainous area,it is difficult to excavate and support the slope.Therefore,the construction of the bolt frame beam is carried out through the first level of excavation protection,factory precast bolt,anchor hole bottom grouting method,cast-in place frame and other technical measures,and the expected effect is finally achieved.

关 键 词：路基 高边坡 锚杆框架梁 孔底返浆法 

分 类 号：U417.1[交通运输工程—道路与铁道工程]