文档介绍：目录爆破设计全段人工挖孔桩专项施工方案松岗隧道爆破设计万家庙隧道进、出口及路基既有线施工方案职责及相关制度相关资质(见附件) .................................................. .................................................. ......................................................................................... ............................................... ............................................... ............................................... .................................................. .................................................. .................................................. ................................. ............................................... ........................................52爆破设计 .................................................. ..................................................................................... ...........................................-4标段,起讫里程为DK43+~D2K82+159,。线路起于重庆市江津区杜市镇境内的石岗咀大桥,标段终点D2K82+159位于重庆市綦江区扶欢镇境内。:国铁I级;正线数目:双线;旅客列车设计行车速度:200km/h。,设綦江东车站1座。,A、B组填料等。,A、B组填料等。,大桥9座/,中桥3座/,主要桥梁概况见下表。主要桥梁工程数量表序号桥名中心里程桥长(m)孔跨布置一特大桥1花龙湾双线特大桥D1K50+×32+1×242陈家湾双线特大桥DK55+×24+37×323驸马祠双线特大桥DK56+×24+13×32+3×244家湾双线特大桥DK70+×24+21×325豹子岩綦江双线特大桥DK73+×32+(68+128+68)m连续刚构+8×32+1×24二大桥1石岗咀双线大桥DK43+×32+2×242马背岗双线大桥D1K54+×24+5×323学堂湾双线大桥DK56+×324大岚垭双线大桥DK57+×24+2×32+1×24序号桥名中心里程桥长(m)孔跨布置5邓家河七线大桥D1K61+×24+2×48T构+1×326螺狮坝綦江双线大桥DK65+(68+128+68)m连续刚构+1×327红洞塘双线大桥DK71+×24+5×328大闸坝双线大桥DK74+2893044×32+3×24+2×32+1×249洞山岩双线大桥DK74+×32+2×24三中桥1