粉细砂地层双线盾构施工实测地表沉降规律分析与预测OA北大核心CSTPCD
Investigation of surface settlement induced by twin shield tunelling in silty fine sand stratum
依托南通地铁二号线某区间盾构隧道施工,针对盾构穿越典型粉细砂地层条件,对双线盾构隧道施工引起的地表沉降开展现场测试和规律分析,对经典Peck公式在南通地区粉细砂地层中双线盾构施工的适用性进行探讨,并研究先行线和后行线土体损失率和地表沉降槽宽度系数的取值及影响因素.研究结果表明,在粉细砂地层中,后行线隧道施工对地层的二次扰动效应会引起先行线轴线上方地表沉降的显著增加,且二次扰动效应明显强于其他软土地层,但弱于砂土地层;相较于淤泥质土地层,在粉细砂地…查看全部>>
Field tests were carried out to observe surface settlement induced by twin shield construction in silty fine sand stratum,based on the project of Nantong Metro line 2.The applicability of the twin peck formula for silty fine sand stratum is examined through measured data.The ground loss rate,the width of the preceding tunnel and the rear tunnel were analyzed.The results show that in silty fine sand soil,the secondary perturbation effect of tunnel constructio…查看全部>>
廖赵胜;相龙胜;高顺宇;丁建文;刘慧刚
东南大学交通学院,南京 211189中交隧道工程局有限公司南京分公司,南京 210000中交隧道工程局有限公司南京分公司,南京 210000东南大学交通学院,南京 211189东南大学交通学院,南京 211189
交通运输
粉细砂地层双线盾构地表沉降土体损失率沉降槽宽度系数
silty fine sand stratumtwin shieldsurface settlementground loss ratesettlement trough width parameter
《土木与环境工程学报（中英文）》 2024 (2)
工业废渣处理高含水率疏浚泥固化土的强度机制与压缩模型研究
79-88,10
国家自然科学基金(51978159)中交隧道工程局有限公司项目(X-GD-SNJGS(S)-JIS-NT02-09-QT-21) National Natural Science Foundation of China(No.51978159)CCCC Tunnel Engineering Company Limited(No.X-GD-SNJGS(S)-JIS-NT02-09-QT-21)
评论