【摘要】 论述了大跨度地下通廊顶进设计方案,讨论和解决了在砂卵石回填土覆土较厚的情况下,涵顶成拱效应以及带有上倾角度的顶进,及与原有地下结构物连接问题。在此基础上,计算了通廊箱涵的最大顶力,并对后背钢筋混凝土桩和滑板进行了设计和验算。更多还原

【Abstract】 In this article, authors state a jacking design plan of a large span underground gallery, discuss and solve such problems as culvert top doming under thick sand and pebble backfill soil, jacking with an upward rake angle, and connection with original structures. They also calculate the maximum support force of the gallery box culvert, design and check back reinforcement concrete piles and sliding plates.更多还原