本文選題：微振爆破 + 硬巖隧道��； 參考：《現(xiàn)代隧道技術(shù)》2017年02期

【摘要】：青島地鐵3號(hào)線青人區(qū)間隧道處于微風(fēng)化花崗巖地層,淺埋下穿國(guó)家級(jí)文物保護(hù)建筑和中山路人防裸洞室群,周邊環(huán)境復(fù)雜。為確保古建筑群的安全和防止裸洞室群坍塌,文章通過(guò)現(xiàn)場(chǎng)試驗(yàn),驗(yàn)證爆破安全判據(jù);采用大直徑超前掏槽空孔、直眼掏槽逐孔延時(shí)起爆、分區(qū)孔內(nèi)外毫秒延遲起爆網(wǎng)絡(luò)、周邊預(yù)鉆減振孔、周邊孔隔孔裝藥、時(shí)空降振等綜合減振技術(shù)措施,成功穿越文物保護(hù)建筑和人防裸洞室群,形成的微振爆破技術(shù)研究成果可為類似工程提供參考。
[Abstract]:The Qingren section tunnel of Qingdao Metro Line 3 is located in the breezy granite stratum, and is buried in the national cultural relic protection building and the civil air defense bare cavern group of Zhongshan Road. The surrounding environment is complex. In order to ensure the safety of the ancient building group and prevent the collapse of the naked cavern group, the paper verifies the blasting safety criterion through the field test, adopts the large-diameter advance cut hole, the straight hole by hole delay initiation, the partition hole inside and outside the millisecond delay initiation network, Comprehensive vibration reduction measures such as peripheral pre-drilling damping hole, peripheral hole septum charging, time-airborne vibration reduction and so on, have successfully passed through cultural relic protection buildings and groups of civil air defense naked caverns. The research results of micro-vibration blasting technology can be used as reference for similar projects.
【作者單位】： 中鐵四局集團(tuán)第七工程分公司;
【分類號(hào)】：U455.6
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本文編號(hào)：1940923