文章來源：中國(guo)鐵路工(gong)程總公司 發布時間：2010-10-10
9月26日，中(zhong)國鐵(tie)(tie)路(lu)工(gong)(gong)(gong)程(cheng)(cheng)總公司(si)所屬(shu)中(zhong)鐵(tie)(tie)九局承建的(de)靖宇(yu)至(zhi)松江河鐵(tie)(tie)路(lu)工(gong)(gong)(gong)程(cheng)(cheng)下山(shan)(shan)頭隧(sui)道斜井(jing)正式開(kai)工(gong)(gong)(gong)。下山(shan)(shan)頭隧(sui)道全(quan)長(chang)7960米(mi)，是宇(yu)松線施工(gong)(gong)(gong)難度(du)最大、工(gong)(gong)(gong)期(qi)最緊的(de)重(zhong)點控制性工(gong)(gong)(gong)程(cheng)(cheng)。為了確保下山(shan)(shan)頭隧(sui)道早日貫通，項目(mu)經理部在DK58+500設(she)置了斜井(jing)，斜井(jing)長(chang)893米(mi)，承擔(dan)正洞(dong)3500米(mi)的(de)施工(gong)(gong)(gong)任(ren)務。