文章來(lai)源：廣東省交通集團(tuan)有(you)限(xian)公司 發布時(shi)間(jian)：2020-12-13
12月13日，隨著最后(hou)一車混凝(ning)土灌注，廣東省交通(tong)集團(tuan)在(zai)建(jian)的深中通(tong)道(dao)伶仃洋大橋(qiao)東錨碇地連(lian)墻(qiang)順利完工(gong)(gong)，東錨碇施工(gong)(gong)正式轉入墻(qiang)內開挖(wa)階段，全(quan)面(mian)進入錨碇實體施工(gong)(gong)“快車道(dao)”。
伶仃洋大橋(qiao)東錨碇(ding)為(wei)目前世界(jie)最大海中(zhong)錨碇(ding)，是(shi)深中(zhong)通道橋(qiao)梁(liang)工(gong)(gong)程關鍵控制性工(gong)(gong)程，地(di)連墻工(gong)(gong)程由中(zhong)交(jiao)二航局施(shi)工(gong)(gong)，成槽采(cai)用BC40/MC96型(xing)液壓銑槽機，由2個起始點同步施(shi)工(gong)(gong)，完(wan)成“8”字(zi)型(xing)區(qu)域(yu)地(di)連墻。
據(ju)介紹，海(hai)(hai)中(zhong)地(di)連墻(qiang)(qiang)施(shi)工(gong)，此前(qian)國內沒有(you)任(ren)何施(shi)工(gong)經驗，深(shen)中(zhong)通道為國內首(shou)次。地(di)連墻(qiang)(qiang)施(shi)工(gong)前(qian)，需在施(shi)工(gong)海(hai)(hai)域淤(yu)(yu)泥軟弱地(di)基(ji)上圍(wei)堰筑(zhu)島、形成施(shi)工(gong)陸域；施(shi)工(gong)過程中(zhong)，需依次穿越回填砂層(ceng)、軟弱淤(yu)(yu)泥層(ceng)、粉砂層(ceng)、中(zhong)粗(cu)砂層(ceng)等復雜底層(ceng)，地(di)連墻(qiang)(qiang)終孔最深(shen)可達66.5米。
目(mu)前，深(shen)中(zhong)通(tong)(tong)道項目(mu)建(jian)設順(shun)利，建(jian)成后，將構建(jian)珠三角A字形交通(tong)(tong)骨架(jia)的“關鍵一(yi)橫”，從深(shen)圳快速直(zhi)達中(zhong)山，通(tong)(tong)行時(shi)(shi)間由2小時(shi)(shi)縮減(jian)為(wei)30分鐘，將有效釋放廣東當(dang)前的區域(yu)交通(tong)(tong)路網壓力，成為(wei)聯(lian)系珠江(jiang)口東西兩(liang)岸(an)的直(zhi)聯(lian)通(tong)(tong)道。項目(mu)預(yu)計2024年建(jian)成通(tong)(tong)車。
【責任編輯：語謙】