摘要
根据现场量测,从地质因素和施工因素两方面分析了GANNTANS隧道斜井软弱地层段施工后初期支护下沉变形开裂的原因,介绍了其处理方案及施工要点,并提出了在泥灰岩软弱围岩地段后期施工预防下沉的技术措施。
According to the field measurement, from the two aspects of geological factors and construction factors, the paper analyzes the reasons for the subsidence and deformation of the initial support after the construction of GANNTANS tunnel inclined shaft, and introduces its treatment plan and key points of construction, and puts forward some technical measures for preventing subsidence in later stage of construction in the area of marl weak surrounding rock.
出处
《工程建设与设计》
2018年第2期200-202,共3页
Construction & Design for Engineering
关键词
泥灰岩隧道
软弱围岩
初期支护
开裂变形
预防下沉
marl tunnel
weak surrounding rock
initial support
cracking and deformation
prevention of subsidence
