盾构穿越铁路箱涵施工技术

盾构在富水砂层中近距离穿越铁路箱涵,不仅仅涉及盾构施工本身的安全与质量问题,更需确保铁路箱涵的沉降在要求范围内,保证铁路列车行车安全。以南昌地铁土建六标穿越京九铁路箱涵为背景,从设备选用与改进、施工辅助措施、掘进参数选择与控制等方面论述了施工过程中采取的相应对策与技术措施,为类似工程的施工提供参考。

Construction Technology for Shield Across the Railway Culvert

Shield across the railway culvert at close range in water-rich sand involves not only the safety and quality of construction of the shield itself, but also the need to ensure that the settlement within the required range on the railway culvert to ensure traffic safety of trains. This article discusses the measures from the equipment selection and improvement, supplementary construction measures, the tunneling parameters selection and control etc. , to provide references for the construction of similar projects.