摘要
为保证徐州地铁一号线高铁停车场出入场线暗挖区间隧道工程的有效完成,通过采用大断面CRD工法,有效控制地表沉降,防止上方匝道路面过大变形.在匝道上方位置铺设30mm厚钢板,既方便了交通导行,又不影响工程施工,从经济的角度来说更节约了施工成本.研究结果表明,采用大断面CRD工法可以解决隧道上方覆盖层较薄、下穿施工风险较大的问题.
In order to ensure the effective completion of the tunneling project of the entrance line of the high-speed railway parking lot of Xuzhou Metro Line 1,the large cross section CRD method is used to effectively control the surface settlement and prevent excessive deformation of the upper ramp.The 30 mm thick steel plate laid in the top of the ramp is not only convenient to the traffic guide without affecting the construction,but is saved construction costs.The results showed that the CRD method can be used to solve the problem caused by the thinner upper cover of the tunnel and the larger risk of construction.
出处
《徐州工程学院学报（自然科学版）》
CAS
2017年第1期26-30,共5页
Journal of Xuzhou Institute of Technology(Natural Sciences Edition)
基金
国家自然科学基金项目(51474045
51174038)
关键词
下穿匝道
钢板
大断面
CRD工法
under the ramp
steel plate
large cross section
CRD method
