文章來源：中國(guo)石油天然氣集(ji)團有(you)限公(gong)司 發布時間：2020-03-21
3月(yue)15日(ri)，中俄東(dong)線天然氣管(guan)道(dao)(dao)工(gong)程(cheng)(cheng)嫩江主(zhu)河道(dao)(dao)盾構工(gong)程(cheng)(cheng)隧道(dao)(dao)洞門封堵完成，意味著隧道(dao)(dao)正式(shi)貫(guan)通，比計劃工(gong)期提前近一個月(yue)。
中(zhong)俄東(dong)線天然氣管道(dao)工(gong)程(cheng)(cheng)(cheng)是中(zhong)俄兩國全(quan)面加強能(neng)源合作(zuo)、深化全(quan)面戰略(lve)協作(zuo)伙伴(ban)關系(xi)的(de)跨(kua)國工(gong)程(cheng)(cheng)(cheng)，是服務國家“一帶一路”倡議、振(zhen)興東(dong)北老(lao)工(gong)業(ye)基地、帶動基礎工(gong)業(ye)發(fa)展、構建我國四大(da)能(neng)源通道(dao)的(de)戰略(lve)性工(gong)程(cheng)(cheng)(cheng)。
嫩江(jiang)(jiang)盾構(gou)工(gong)(gong)程(cheng)作為中俄東線北段的一項重要控制(zhi)性工(gong)(gong)程(cheng)，始發井(jing)位(wei)于黑(hei)龍江(jiang)(jiang)省(sheng)(sheng)大慶市肇源(yuan)縣(xian)茂興鎮(zhen)自(zi)力村，接收井(jing)位(wei)于吉林省(sheng)(sheng)松原(yuan)市前郭(guo)縣(xian)嫩江(jiang)(jiang)村，盾構(gou)隧道長1224.7米(mi)(mi)，內徑3.08米(mi)(mi)，穿越地層主(zhu)要為粉質黏(nian)土、粉砂、黏(nian)土等復雜結構(gou)。施工(gong)(gong)期(qi)間，項目部與施工(gong)(gong)、監理單位(wei)就工(gong)(gong)期(qi)和(he)存(cun)在(zai)的風險(xian)進(jin)行深入(ru)研討，決定采取水(shui)下破(po)洞法貫(guan)通，有(you)效規避粉砂及粉質黏(nian)土層破(po)洞帶來(lai)的涌水(shui)涌砂、地面沉降等風險(xian)，同時兩次優化、縮(suo)短(duan)施工(gong)(gong)工(gong)(gong)期(qi)，確(que)保工(gong)(gong)程(cheng)安全高效貫(guan)通。
管道局等(deng)施(shi)工(gong)(gong)單位合理(li)調配資源，通(tong)過改造設(she)(she)備、更換專用刀具、調整掘進(jin)參數等(deng)一系列措(cuo)施(shi)，在嚴寒中(zhong)攻(gong)克(ke)了(le)600多米長的黏土地(di)層(ceng)掘進(jin)、多次進(jin)艙清(qing)淤等(deng)難題。同時(shi)(shi)，施(shi)工(gong)(gong)單位加快(kuai)推(tui)進(jin)實施(shi)智慧管道建(jian)設(she)(she)，在施(shi)工(gong)(gong)現場設(she)(she)立遠程(cheng)監(jian)控系統，對盾構隧道掘進(jin)參數進(jin)行實時(shi)(shi)傳輸，24小時(shi)(shi)全程(cheng)監(jian)控盾構機掘進(jin)姿態，確保工(gong)(gong)程(cheng)安全和質量全面受控。
【責任編輯：姚騰】