摘要
本文就北京地铁建设中首次采用浅埋暗挖法设计,按新奥法原理进行施工的经验做了全面介绍。文中分别对松散地层的深埋、浅埋、超浅埋的分界深度的确定;复合式衬砌之间的空隙存在对结构安全度的影响;以及进一步减低浅埋暗挖法造价的措施等结合工程实践及有关国内外经验作了较详尽的介绍和探讨。
The experience in Beijing underground railway construction was introduced, where the design by shallow cover underground excavation method and construction with NAM principles were applied. A detailed investigation experience both at home and abroad in combination with engineering practice was carried out. The distinction etween deep, shallow and super shallow covers for friable strata was established. The influence of gap between complex linings on safety factors of the structure was pointed out and the measures for lowering cost for shallow cover under-ground excavation were suggested. Its experience is useful to underground construction with similar conditions.
出处
《地下空间》
CSCD
1992年第4期289-294,共6页
Underground Space
关键词
浅埋暗挖法
设计
施工
地下铁道
Shallow cover underground excavation
design
construction
distinction between deep
shallow and super-shallow covers
