摘要
运用风险分析方法,讨论了软土地区管幕法箱涵顶进施工时存在的顶进精度、箱涵出洞风险、箱涵顶进的沉降控制及密封、箱涵开挖面稳定以及方向控制等风险因素,并指出了采用中继间顶进工法、高精度方向控制等相应防范措施的有效性。
Pipe-roofing method is a new type of underground excavation technique. On the basis of risk analysis, this paper discusses the construction risk under culvert box advancing of pipe-roofing method in soft clay area, including the advancing precisions of pipe-roofing, risk at the exit section, settlement controll and seal, the excavation stability and direction controlling, pmlx^es the corresponding methods of risk prevention.
出处
《城市轨道交通研究》
2006年第4期41-44,共4页
Urban Mass Transit
关键词
管幕法
箱涵顶进
风险分析
风险防范
pipe-roofing method, culvert box advancing, riskanalysis, risk prevention
