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深圳地鐵13號線(xiàn)二工區科深盾構區間右線(xiàn)順利貫通
2021-04-23 15:27
來(lái)源： 深圳新聞網(wǎng)

深圳地鐵13號線(xiàn)二工區科深盾構區間右線(xiàn)順利貫通

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人工智能朗讀：




       見(jiàn)圳客戶(hù)端·深圳新聞網(wǎng)2021年4月23日訊 昨日,隨著(zhù)科苑盾構接收端頭洞門(mén)地連墻的破除,科苑站——深大東站區間右線(xiàn)順利貫通。

科深區間右線(xiàn)盾構從深大東站小里程端始發(fā),沿科苑大道下穿高新南九道,于科苑站大里程端接收。隧道全長(cháng)為368.469m,埋深17.1～19.0m,線(xiàn)間距為10.28~17.33m,左右線(xiàn)最小水平凈距4.08m。

區間于2021年2月4日正式始發(fā),跨年施工,歷時(shí)77天,兩次近距離下穿地下空間深基坑,最小凈距1.8m。區間范圍存在長(cháng)度約40米范圍的上軟下硬地層,天然抗壓強度大于100Mpa,針對現場(chǎng)困難,項目部超前謀劃,科學(xué)組織,提前進(jìn)行深孔爆破預處理,降低了施工風(fēng)險,保證了盾構機順利穿越上軟下硬地段并成功抵達接收端頭。

科深區間為地鐵13號線(xiàn)與科苑大道地下空間開(kāi)發(fā)共建的首個(gè)區間,目前區間左線(xiàn)剩余159環(huán),項目部將繼續爭分奪秒,加強過(guò)程管理,優(yōu)化掘進(jìn)參數,盡快實(shí)現雙線(xiàn)洞通。 （吳艷 ）


[編輯：吳艷]
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