盾構(gòu)隧道施工對淺基礎(chǔ)建筑物影響研究
發(fā)布時間：2018-12-12 13:02
【摘要】：結(jié)合深圳地鐵7號線穿越4棟2層淺基礎(chǔ)(2層燒結(jié)磚基礎(chǔ))建筑物,采用數(shù)值模擬的方法并與現(xiàn)場監(jiān)測數(shù)據(jù)相結(jié)合,研究盾構(gòu)施工對淺基礎(chǔ)建筑物的影響規(guī)律。通過分析盾構(gòu)掘進對地表橫縱向、建筑物關(guān)鍵觀測點沉降及建筑物基礎(chǔ)應(yīng)力的影響程度,并與現(xiàn)場監(jiān)測結(jié)果進行對比,研究結(jié)果表明靠近隧道一側(cè)建筑物地表沉降比遠側(cè)沉降偏大;地層軟硬程度對地表建筑物沉降影響較大,尤其是軟硬地層交界面位于同一建筑物下方時,會造成建筑物點沉降差異較大;數(shù)值模擬結(jié)果比監(jiān)測數(shù)據(jù)偏大,在施工中可借鑒數(shù)值模擬結(jié)果對建筑物變形量進行預(yù)測是否在可控范圍內(nèi)。
[Abstract]:Combined with Shenzhen Metro Line 7 passing through four buildings with 2-story shallow foundation (2-story sintered brick foundation), the influence law of shield construction on shallow foundation building was studied by numerical simulation method and field monitoring data. By analyzing the influence of shield tunneling on the settlement of the ground surface, the key observation points of the building and the stress of the foundation of the building, the results of the shield tunneling are compared with the field monitoring results. The results show that the ground subsidence near the tunnel side is larger than that near the far side. The soft and hard degree of formation has a great influence on the settlement of surface buildings, especially when the interface of soft and hard strata is located under the same building, which will cause the difference of settlement of building points. The result of numerical simulation is larger than that of monitoring data, so it can be used for reference in construction to predict the deformation of building in controllable range.
【作者單位】： 西南交通大學(xué)交通隧道工程教育部重點實驗室;中國水利水電第十一工程局有限公司;
【分類號】：U455.43
[Abstract]:Combined with Shenzhen Metro Line 7 passing through four buildings with 2-story shallow foundation (2-story sintered brick foundation), the influence law of shield construction on shallow foundation building was studied by numerical simulation method and field monitoring data. By analyzing the influence of shield tunneling on the settlement of the ground surface, the key observation points of the building and the stress of the foundation of the building, the results of the shield tunneling are compared with the field monitoring results. The results show that the ground subsidence near the tunnel side is larger than that near the far side. The soft and hard degree of formation has a great influence on the settlement of surface buildings, especially when the interface of soft and hard strata is located under the same building, which will cause the difference of settlement of building points. The result of numerical simulation is larger than that of monitoring data, so it can be used for reference in construction to predict the deformation of building in controllable range.
【作者單位】： 西南交通大學(xué)交通隧道工程教育部重點實驗室;中國水利水電第十一工程局有限公司;
【分類號】：U455.43
【相似文獻】
相關(guān)會議論文 前10條
1 朱合華;丁文其;橋本正;長屋淳一;;盾構(gòu)隧道施工過程模擬分析[A];第一屆海峽兩岸隧道與地下工程學(xué)術(shù)與技術(shù)研討會論文集（上冊）[C];1999年
2 崣文;王懽宇;李建_7;[k海霞;;盾構(gòu)隧道施工中上浮管片的受力分布研究[A];第八屆海峽兩岸隧道與地下工程學(xué)術(shù)與技術(shù)研討會論文集[C];2009年
3 王子煜;李金安;;盾構(gòu)隧道施工安全管理[A];河南省土木建筑學(xué)會2010年學(xué)術(shù)大會論文集[C];2010年
4 周建鋼;;疊落式盾構(gòu)隧道施工技術(shù)[A];第二屆全國地下、水下工程技術(shù)交流會論文集[C];2011年
5 林森;江濤;劉佳明;孟昆鵬;李朝;;地鐵盾構(gòu)隧道施工風險與規(guī)避對策研究[A];2012中國城市軌道交通關(guān)鍵技術(shù)論壇暨第三屆中國（長春）國際軌道交通論壇論文集[C];2012年
6 李東海;;復(fù)雜環(huán)境下盾構(gòu)隧道施工引起的地表沉降分析[A];中國巖石力學(xué)與工程實例第一屆學(xué)術(shù)會議論文集[C];2007年
7 魏新江;魏}，
本文編號：2374604
本文鏈接：http://sikaile.net/kejilunwen/daoluqiaoliang/2374604.html
