來(lái)源:北方網(wǎng) | 2022-03-20 20:11:18 |
天津北方網(wǎng)訊:3月18日,由中建基礎(chǔ)牽頭、中建二局施工的天津地鐵7號(hào)線(xiàn)3標(biāo)項(xiàng)目興華道站~張道口站區(qū)間(以下簡(jiǎn)稱(chēng)興張區(qū)間)右線(xiàn)順利始發(fā),這是3標(biāo)項(xiàng)目第7臺(tái)盾構(gòu)始發(fā),標(biāo)志著3標(biāo)項(xiàng)目最后一個(gè)區(qū)間正式開(kāi)始隧道掘進(jìn)作業(yè),也標(biāo)志著天津地鐵7號(hào)線(xiàn)第10臺(tái)次盾構(gòu)始發(fā)。
據(jù)悉,興張區(qū)間的設(shè)計(jì)線(xiàn)路位于西青區(qū)興華七支路、民和道和友誼南路。右線(xiàn)全長(zhǎng)762m,左線(xiàn)全長(zhǎng)763m,區(qū)間設(shè)有一座聯(lián)絡(luò)通道及泵房,隧道結(jié)構(gòu)頂部覆土厚度約9.8~13.8m。該區(qū)間地質(zhì)結(jié)構(gòu)較為復(fù)雜,隧道穿越中等液化土層和承壓水層,施工難度大、安全風(fēng)險(xiǎn)高,對(duì)掘進(jìn)要求十分嚴(yán)格。
為保證興張區(qū)間盾構(gòu)始發(fā)安全,項(xiàng)目部積極總結(jié)張梅區(qū)間、宏興區(qū)間、蘆宏區(qū)間前6臺(tái)次盾構(gòu)順利始發(fā)的經(jīng)驗(yàn),制定完善的始發(fā)掘進(jìn)方案及應(yīng)急預(yù)案。項(xiàng)目領(lǐng)導(dǎo)班子成員成立了始發(fā)專(zhuān)項(xiàng)攻堅(jiān)小組,針對(duì)始發(fā)工作做到分工明確,責(zé)任到人。同時(shí)積極開(kāi)展洞門(mén)涌水涌砂、盾尾滲漏等應(yīng)急演練,根據(jù)應(yīng)急預(yù)案落實(shí)各項(xiàng)安全預(yù)防措施,確保盾構(gòu)順利平穩(wěn)推進(jìn)。(津云新聞?dòng)浾叨⒕埃?/p>
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