[工學(xué)]h004-論文全文(已修改)
2025-01-28 06:56 本頁面
【正文】 學(xué)科代碼：H004暗挖隧道施工對平行地下管線性狀影響研究康杰1，王紹君1，衣玉春 2(1. 哈爾濱工業(yè)大學(xué) 土木工程學(xué)院，黑龍江 哈爾濱 150090；2. 山東正元建設(shè)工程有限責(zé)任公司，山東 濟(jì)南 250014)摘要：地鐵、路橋樁基以及高層建筑深基坑開挖等地下工程項目的施工，對城市既有地下管網(wǎng)的安全運(yùn)行帶來了巨大影響。針對地鐵暗挖過程中由于土體應(yīng)力損失造成的既有管線結(jié)構(gòu)性狀影響展開研究，采用控制地表沉降的方法，分析了暗挖施工掌子面推進(jìn)過程中平行于區(qū)間隧道的地下管線的應(yīng)力變化，同時考慮了施工步序的影響。通過建立理想暗挖隧道模型，分析地表差異沉降，不僅有利于控制淺埋地下管道的安全性并判斷暗挖斷面前后沉降曲線的拐點(diǎn)，而且可有效控制暗挖掌子面的推進(jìn)速度。建立了理想暗挖隧道模型，可以表征地表沉降差異分析有利于控制淺埋地下管道的安全性并判斷暗挖斷面前后沉降曲線的拐點(diǎn)，從而有效控制暗挖掌子面的推進(jìn)速度。關(guān)鍵詞：區(qū)間隧道；地下管網(wǎng)；襯砌；施工步序；地表沉降中圖分類號： 文獻(xiàn)標(biāo)識碼：A 文章編號：Influence of tunneling construction on buried pipelines parallelled with running tunnelKANG Jie1, WANG ShaoJun1, YI Yuxiang2( of Civil Engineering, Harbin Institute of Technology, Harbin 150090,China。 Zhenyuan Construction Engineering Corporation Limited, Jinan 250014,China)Abstract: Safe operation of existing underground pipe network is greatly affected by underground engineering project construction. The stress changes of buried pipelines parallelled with running tunnel are investigated using ground surface settlement control method during the tunnel face advance, and the influence factors of the stress change of buried pipelines, containing construction step, lining, anchor and grouting are analyzed. The results show that areas of the prepost excavation face where ground loss changes the biggest are the sensitive areas of pipe settlement changes, and the change of pipe settlement tends to be stable exceed that areas. The ideal model of mined tunnel is established to analyze the difference of ground surface settlement, which is beneficial to ensure security of shallow underground pipeline and judge the inflection point of settlement curve of pre and post excavation face, thus control advance speed of tunnel face effectively
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