久久亚洲av午夜福利精品一区_欧美人妻一区二区三区_国产精品久久久久久久_国产AV无码一区二区三区

太原(yuan)市(shi)集中供熱(re)陽曲熱(re)源(yuan)廠長(chang)輸供熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)網工(gong)程(cheng)供熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)線需穿越G2003太原(yuan)繞城東環高(gao)速公(gong)路K7+476、丈子(zi)(zi)頭互通匝道CK0+120處，供熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)線為(wei)2趟設計管(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)DN1400聚氨酯(zhi)保溫直埋鋼管(guan)(guan)(guan)(guan)(guan)(guan)，下穿東環高(gao)速公(gong)路采(cai)用(yong)頂進套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)施工(gong)，供熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)線分別放置于(yu)套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)， K7+476處套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)為(wei)DN2200Ⅲ級鋼筋混凝(ning)土(tu)鋼承口(kou)（JC/T640-2010），兩根套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)道之間(jian)中心(xin)間(jian)距7.64米，凈(jing)距5.0米，單趟長(chang)度110米；丈子(zi)(zi)頭互通匝道CK0+120處套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)為(wei)DN2000鋼管(guan)(guan)(guan)(guan)(guan)(guan)，根套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)道之間(jian)中心(xin)間(jian)距6.036米，凈(jing)距4.0米，單趟長(chang)度120米；套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)距高(gao)速路面(mian)豎向距離(li)分別為(wei)9.34、6.84米，施工(gong)完畢，套(tao)(tao)管(guan)(guan)(guan)(guan)(guan)(guan)內(nei)吹砂填(tian)實。