文章(zhang)來源：中國石油(you)天然氣集團公司 發布時間：2010-09-24
9月(yue)21日，中(zhong)國石油管(guan)道局(ju)西氣東輸二線西段EPC項目西二線西段共153處三穿工(gong)程日前全部(bu)完(wan)工(gong)，為10月(yue)底實(shi)現機械完(wan)工(gong)、11月(yue)底具備置換投產條件贏得(de)了時間。
西二(er)線西段共有(you)(you)153處(chu)單(dan)出圖穿(chuan)越，其中隧(sui)道工(gong)程穿(chuan)越10條、大(da)中型(xing)河流(liu)穿(chuan)越15處(chu)、鐵(tie)路穿(chuan)越12處(chu)、高(gao)等(deng)級(ji)公路穿(chuan)越89處(chu)，此外還有(you)(you)古(gu)長城穿(chuan)越、渠道穿(chuan)越等(deng)。西二(er)線西段三穿(chuan)穿(chuan)越點經過西部戈壁、沙(sha)漠、黃土塬和人文環境地點區域，施工(gong)協調難度(du)大(da)、技術(shu)要求高(gao)、工(gong)期緊迫，給(gei)施工(gong)人員帶來(lai)巨大(da)壓力。
為了按期、優質(zhi)、安全完(wan)成(cheng)隧道(dao)、河流、公路(lu)、鐵路(lu)等(deng)穿越點工(gong)程，管(guan)道(dao)局西二線西段EPC項目部設立協調組，由項目部主(zhu)管(guan)領導(dao)負責(ze)，實行管(guan)理(li)前置制度(du)，協調人員在施工(gong)現場完(wan)成(cheng)報驗、界面確認、技術服務以(yi)及(ji)施工(gong)計(ji)劃督導(dao)。針對果子溝隧道(dao)施工(gong)塌(ta)方、中毒、環保(bao)及(ji)洞內安裝有(you)限空間作業等(deng)問題，項目部加強日(ri)檢制度(du)，及(ji)時(shi)發布QHSE緊(jin)急預警通知，監(jian)督承(cheng)包商整改不合(he)格項目，為促進(jin)(jin)工(gong)程建(jian)設進(jin)(jin)度(du)創(chuang)造有(you)利條件。
在(zai)穿越(yue)河(he)(he)流(liu)中(zhong)(zhong)，項(xiang)目(mu)部(bu)和(he)(he)(he)施(shi)(shi)工(gong)(gong)(gong)(gong)單(dan)位根據當地(di)水文資(zi)料，在(zai)河(he)(he)流(liu)枯水季節施(shi)(shi)行(xing)(xing)(xing)大(da)開挖施(shi)(shi)工(gong)(gong)(gong)(gong)，既(ji)保(bao)(bao)證(zheng)(zheng)工(gong)(gong)(gong)(gong)期不受影響(xiang)，也保(bao)(bao)護(hu)(hu)(hu)河(he)(he)流(liu)水源(yuan)不受污染。項(xiang)目(mu)部(bu)在(zai)三穿施(shi)(shi)工(gong)(gong)(gong)(gong)中(zhong)(zhong)重視環(huan)保(bao)(bao)措施(shi)(shi)的落實(shi)，嚴(yan)格執行(xing)(xing)(xing)國家(jia)和(he)(he)(he)地(di)方法律、法規、條(tiao)例，堅(jian)持“預防(fang)為主，防(fang)治結(jie)合”方針(zhen)，在(zai)果子溝、大(da)東溝、賽里木湖、安西極旱自然(ran)保(bao)(bao)護(hu)(hu)(hu)區(qu)等重點區(qu)域施(shi)(shi)工(gong)(gong)(gong)(gong)前，制訂(ding)并向地(di)方環(huan)保(bao)(bao)部(bu)門報審專項(xiang)施(shi)(shi)工(gong)(gong)(gong)(gong)方案。施(shi)(shi)工(gong)(gong)(gong)(gong)過程中(zhong)(zhong)，嚴(yan)格按設計(ji)技術要求進行(xing)(xing)(xing)水工(gong)(gong)(gong)(gong)保(bao)(bao)護(hu)(hu)(hu)和(he)(he)(he)地(di)貌恢復工(gong)(gong)(gong)(gong)作，持續完善水土保(bao)(bao)持和(he)(he)(he)環(huan)境保(bao)(bao)護(hu)(hu)(hu)管(guan)理(li)工(gong)(gong)(gong)(gong)作。在(zai)幾處(chu)古跡遺址穿越(yue)中(zhong)(zhong)，項(xiang)目(mu)部(bu)設計(ji)、外部(bu)協(xie)調及施(shi)(shi)工(gong)(gong)(gong)(gong)單(dan)位多次(ci)(ci)現(xian)場踏(ta)勘，制訂(ding)頂(ding)(ding)管(guan)穿越(yue)方式。該項(xiang)目(mu)部(bu)采(cai)用經緯(wei)儀測(ce)(ce)出穿越(yue)管(guan)段中(zhong)(zhong)心(xin)線(xian)，用水準儀測(ce)(ce)量校正液壓頂(ding)(ding)管(guan)機(ji)和(he)(he)(he)穿越(yue)套(tao)管(guan)位置，使套(tao)管(guan)中(zhong)(zhong)心(xin)線(xian)與設計(ji)中(zhong)(zhong)心(xin)線(xian)相吻(wen)合，保(bao)(bao)證(zheng)(zheng)每一(yi)次(ci)(ci)穿越(yue)均一(yi)次(ci)(ci)成(cheng)功。
西二線(xian)西段工程干線(xian)從霍爾(er)果(guo)斯(si)首(shou)站至中衛聯絡(luo)壓(ya)氣站，支干線(xian)從中衛至靖(jing)邊(bian)，線(xian)路全長約(yue)2788公里(li)，管道線(xian)路主體焊接于今年6月4日完(wan)工，比(bi)計(ji)劃提前45天，僅(jin)用16個多月時間，高(gao)水平、高(gao)速度(du)、高(gao)質量地完(wan)成了全線(xian)管道主體焊接任務。
截至9月22日，西(xi)二(er)(er)線西(xi)段完成防腐補(bu)口(kou)2738公里，管道下溝2736公里，實現二(er)(er)次(ci)回填2719.45公里，全線通球、試壓(ya)(ya)工作接(jie)近尾聲。22座(zuo)站場綜合進度(du)超過53%，霍爾果(guo)斯和(he)紅柳站壓(ya)(ya)縮機安裝(zhuang)(zhuang)調試、管網(wang)工藝安裝(zhuang)(zhuang)進展順利(li)，后(hou)續9座(zuo)燃驅壓(ya)(ya)氣(qi)站工程進度(du)與計劃吻合。