二、工程概况
高边坡防护段落:本标段共有6处路堑段因挖方较深,土方边坡或石质较差,路堑边坡易滑塌,采用预应力锚索或锚杆框架防护,具体如下:
本标段如下段落属于高边坡:
①、K45+320~K45+590右侧深挖路堑,长270m,最大坡高49.9m;
②、K45+650~K45+730右侧深挖路堑,长80m,最大坡高39.1m;
③、K46+070~K46+270右侧深挖路堑,长200m,最大坡高70.7m;
④、K46+687~K46+760深挖路堑右侧,长73m,最大坡高30.8m;
⑤、K47+792.636~K48+000左侧深挖路堑,长217.364m,最大坡高48.4m;
⑥、BXK0+310~TBK0+1.576右侧深挖路堑,长31.938m,最大坡高41.4m;