摘要
盾构机在穿越软硬交错分布的地层时,密闭舱内土压力的大小是保证前方土体稳定的重要因素。以北京地铁的设计与施工为研究对象,在盾构隧道穿越复杂多变的地层条件下,采用梁—弹簧模型对盾构隧道管片的内力进行计算分析,并针对地层条件提出了盾构隧道掘进过程中的有效施工措施。
Shield machine in soft stratum crossing staggered distribution, the size of earth pressure in sealed cabin is to ensure that the front sou stability factor. Design and construction of subway in Beijing as the research object, in the shield tunnel through the complex geological conditions, the beam-spring model for shield tunnel segment internal force calculation and analysis, and aimed at the formation conditions of the shield tunneling process effective construction measures.
出处
《中国科技信息》
2013年第9期66-67,共2页
China Science and Technology Information
关键词
盾构隧道
力学分析
梁-弹簧模型
施工措施
shield tunnel
mechanical analysis
beam-springmodel
construction measures
