文(wen)章來源：廣東省交通集團有(you)限公司 發(fa)布(bu)時間：2020-12-13
12月(yue)13日，隨著最后一車混凝土灌注，廣東(dong)省(sheng)交通集(ji)團在建的深中(zhong)通道伶(ling)仃洋(yang)大橋(qiao)東(dong)錨(mao)碇(ding)地連(lian)墻順利完(wan)工，東(dong)錨(mao)碇(ding)施工正式轉入墻內開挖階段，全面進入錨(mao)碇(ding)實體施工“快車道”。
伶仃洋大橋東(dong)錨碇為(wei)目前世界最大海(hai)中(zhong)錨碇，是深(shen)中(zhong)通道橋梁工程關鍵控制性(xing)工程，地連(lian)墻工程由(you)中(zhong)交二(er)航(hang)局施工，成槽(cao)采用BC40/MC96型液壓銑槽(cao)機，由(you)2個起始點同步施工，完(wan)成“8”字型區域地連(lian)墻。
據(ju)介紹，海中(zhong)地連(lian)墻(qiang)施(shi)工(gong)(gong)(gong)，此前國(guo)內沒有任何施(shi)工(gong)(gong)(gong)經驗，深(shen)中(zhong)通道(dao)為國(guo)內首次(ci)。地連(lian)墻(qiang)施(shi)工(gong)(gong)(gong)前，需在(zai)施(shi)工(gong)(gong)(gong)海域(yu)淤泥(ni)軟(ruan)弱(ruo)(ruo)地基上圍堰筑島、形成施(shi)工(gong)(gong)(gong)陸域(yu)；施(shi)工(gong)(gong)(gong)過程中(zhong)，需依次(ci)穿越回填砂(sha)層(ceng)、軟(ruan)弱(ruo)(ruo)淤泥(ni)層(ceng)、粉(fen)砂(sha)層(ceng)、中(zhong)粗(cu)砂(sha)層(ceng)等(deng)復雜底層(ceng)，地連(lian)墻(qiang)終孔最深(shen)可達66.5米(mi)。
目前(qian)(qian)，深中通(tong)(tong)(tong)道項(xiang)目建設順利，建成(cheng)(cheng)后(hou)，將(jiang)構建珠三角A字(zi)形交(jiao)通(tong)(tong)(tong)骨架的(de)“關(guan)鍵一橫”，從深圳快(kuai)速直達中山，通(tong)(tong)(tong)行(xing)時間由2小時縮減為(wei)30分鐘，將(jiang)有效釋(shi)放廣東當前(qian)(qian)的(de)區域(yu)交(jiao)通(tong)(tong)(tong)路網壓(ya)力，成(cheng)(cheng)為(wei)聯系珠江(jiang)口東西兩岸的(de)直聯通(tong)(tong)(tong)道。項(xiang)目預(yu)計2024年(nian)建成(cheng)(cheng)通(tong)(tong)(tong)車。
【責任編輯：語謙】