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某盾构区间近接下穿运营区间施工技术

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以天津某新建地铁盾构区间近距离下穿运营区间工程为背景,采用数值计算方法对运营区间变形进行预估分析。根据运营区间位移变化规律,除常规注浆等施工处理措施外,对穿越段采用克泥效工法,实际监测数据分析发现:监测数据均小于预估分析值,且变化趋势基本一致;施工后沉降满足相关规范要求;克泥效工法措施能有效地控制变形。
Construction Technology of a Shield Tunnel Interval Close to the Underpass Operation Interval
Taking the project of a newly-built subway shield tunnel interval close underpass operating intervals in Tianjin as the background,the use of numerical calculation methods on the operating intervals of the deformation of the prediction analysis is carried out.According to the operating interval displacement change rule,in addition to conventional grouting and other construction measures,the crossing section is constructed by the mud control method.The actual monitoring data is analyzed and found that the monitoring data are less than the predicted value of the analysis,and the trend of change is basically the same.The settlement after construction meet the relevant specifications.The deformation can be controlled effectively with the construction measures by the mud control methold.

shield tunnel intervalshort distanceunderpassoperating intervalmud controlsettlement

陆玉和、刘振朝、宁纪超、王孜璨、任方毅、易领兵

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中国交建轨道交通事业部(轨道分公司|铁道总院),北京 100088

中国路桥工程有限责任公司,北京 100088

西南交通大学茅以升学院,成都 611756

盾构区间 近距离 下穿 运营区间 克泥效 沉降

河南省科技厅自然科学基金资助项目河南省建筑业协会科研开发项目河南省建筑业协会科研开发项目郑州交通重点工程建设管理中心横向委托资助项目

162102210188YJX-2023-K01YJX-2023-K0251000128

2024

路基工程
中铁二局集团有限公司,西南交通大学,中铁二院工程集团有限责任公司

路基工程

影响因子:0.36
ISSN:1003-8825
年,卷(期):2024.(1)
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