摘要
万家寨引黄工程输水线路总长约 452 .6km ,主要输水建筑物为隧洞 ,共 32条 ,计长 2 1 3km。在深埋长隧洞施工中 ,根据地形、地质条件 ,以设置支洞来增加工作面 ,满足工期的要求 ,改善排水、通风和运输条件 ,减少施工干扰。支洞的型式选有平支洞、斜井和竖井 ,断面为城门洞型和圆型 (竖井 ) ,支洞采用锚喷支护结构 ,运行期间作为检修。
The total length of the water conveyance line of the YRDP is about 452 6km,in which the main structure is tunnel,its number being 32 and its length being 213km.In construction of the long and deep lying tunnels,the drifts are arranged according to the topographic and geologic condition in order to increase working face,to meet the requirement of the project term,to improve the condition of drainage,ventilation and transportation and to decrease the disturbance against construction.The type of the drifts has horizontal one,inclined one and vertical one,its cross section being city gateway like and circular.The drifts have been or will be constructed by shotcrete plus rock bolt support.During operation of the project,the drifts will be used as the passage of service,observation and air supplement.
出处
《山西水利科技》
2000年第2期36-37,共2页
Shanxi Hydrotechnics
