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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

國內最大盾構機在濱河大道下施工

春風(fēng)隧道西起濱河大道上步立交東側，與濱河大道對接，東至新秀立交南側，與沿河南路對接，全長(cháng)約5．08千米，其中隧道長(cháng)約4．82千米。雙向四車(chē)道，采用單洞雙層形式，其中盾構隧道長(cháng)3603米。春風(fēng)隧道是深圳市首條采用盾構法施工的市政公路隧道，也是國內目前在建直徑最大的盾構隧道項目。隧道采用國內最大直徑的泥水平衡盾構機施工，盾構機總長(cháng)135米、開(kāi)挖直徑15．8米、總重量達到4800多噸。

今年10月份，盾構機正式下井掘進(jìn)，截至目前位置已掘進(jìn)128米。春風(fēng)隧道沿線(xiàn)下穿眾多建構筑物，且需穿越布吉河、羅湖火車(chē)站、地鐵1、9號線(xiàn)及11條地質(zhì)斷裂帶等極高風(fēng)險源，其施工難度、施工風(fēng)險在國內外同類(lèi)型工程中排在前列。當前項目盾構已掘進(jìn)至濱河大道主路正下方，隧道頂覆土約12米，小于開(kāi)挖直徑，且盾構平行下穿1條污水箱涵、垂直距離8米，施工風(fēng)險高。

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[見(jiàn)圳客戶(hù)端、深圳新聞網(wǎng)編輯：施冰冰]

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