地锚式沉井压入施工阶段对环境影响监测成果分析
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(1 中国建筑西南设计研究院有限公司， 成都 610041； 2 同济大学建筑工程系， 上海 200092)
［摘要］沉井施工不可避免地扰动周围地层，导致地表沉降，从而对周围的建（构）物产生影响。结合实际工程,提出地锚式沉井压入施工方案，并对压沉过程中井壁周边土体水平位移、地表沉降、土体分层沉降、管线沉降等的现场施工监测数据进行分析，探讨地锚式沉井施工对周边环境的影响。结果表明，地锚式沉井施工具有下沉速度快、对周边环境影响较小等特点，可为今后考虑施工因素的沉井结构设计提供依据。［关键词］地锚式沉井; 现场监测; 地表沉降; 土体水平位移; 土层分层沉降; 管线沉降中图分类号：TU398.7 文献标识码：A 文章编号：1002-848X(2016)08-0100-06
Analysis of monitoring results of environmental impact on anchor caisson-in pressing construction phaseLuo Shihan1, Xu Wei2(1 China Southwest Architectural Design and Research Institute Corp., Ltd., Chengdu 610041, China; 2 Department of Building Engineering, Tongji University, Shanghai 200092, China)Abstract: Caisson construction will inevitably disturb the surrounding strata, cause surface settlement and impact the surrounding buildings or structures. Combined with the practical engineering experience, the pressing construction scheme of anchor caisson was put forward. The field construction monitoring data in pressing process were analyzed, including the horizontal displacement of soil around caisson walls, ground surface settlement, soil layered settlement and underground pipeline settlement, to investigate the effects of anchor caisson pressing construction process on the surrounding environment. The results show that the anchor caisson pressing construction has characteristics of rapid speed and little effect on the surrounding environment, which can provide the basis for future caisson structural design with consideration of the construction factors.Keywords: anchor caisson; field monitoring; ground surface settlement; soil horizontal displacement; soil layered settlement; underground pipeline settlement
作者简介：罗实瀚，硕士，助理结构工程师，Email:381363626@qq.com。
