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國內最大盾構機在濱河大道下施工，春風(fēng)隧道地下已掘進(jìn)128米

2019-12-24 07:32來(lái)源：深圳特區報

實(shí)時(shí)監測地表隧道數據確保安全

為確保施工安全，春風(fēng)隧道采取多種措施，持續加強各項監測工作，實(shí)時(shí)反饋地表及隧道內監測數據；密切關(guān)注盾構機各項參數，確保盾構安全掘進(jìn)；增大泥漿比重及粘度來(lái)增加掌子面泥膜厚度以穩定地層，同時(shí)通過(guò)調整同步注漿液配比來(lái)縮短砂漿凝固時(shí)間；盾尾密封一直通過(guò)補注盾尾油脂保壓，確保盾尾不被外界水土壓力擊穿，規避盾尾涌水涌沙風(fēng)險。

為減少春風(fēng)隧道施工對周邊居民生產(chǎn)生活影響，項目主動(dòng)對泥水處理廠(chǎng)進(jìn)行了隔音降噪，安裝減振器、增設雙層隔音板、設置獨立振動(dòng)篩基礎等。經(jīng)市生態(tài)環(huán)境局羅湖管理局實(shí)測，各項指標符合國家規范。春風(fēng)隧道項目部相關(guān)負責人表示，盾構機在停機過(guò)程中，存在涌水、涌砂、上部污水箱涵沉降開(kāi)裂、地表沉陷危及交通安全等風(fēng)險，必須確保盾構持續安全掘進(jìn)。在確保安全的情況下，春風(fēng)隧道將優(yōu)化施工時(shí)間，營(yíng)造文明施工氛圍，早日貫通項目隧道，便利深圳市民交通出行。

（作者：讀特記者徐興東文／圖）

[見(jiàn)圳客戶(hù)端、深圳新聞網(wǎng)編輯：施冰冰]

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