|本期目录/Table of Contents|

[1]张彦斌,杨成永.穿越位置对地铁结构和行车安全的影响分析[J].中国安全生产科学技术,2014,10(3):61-66.[doi:10.11731/j.issn.1673-193x.2014.03.010]
 ZHANG Yan bin,YANG Cheng yong.Study on the impact of underling tunneling on the subway structures and traffic safety[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(3):61-66.[doi:10.11731/j.issn.1673-193x.2014.03.010]
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穿越位置对地铁结构和行车安全的影响分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年3期
页码:
61-66
栏目:
学术论著
出版日期:
2014-03-28

文章信息/Info

Title:
Study on the impact of underling tunneling on the subway structures and traffic safety
作者:
张彦斌杨成永
(北京交通大学 土木建筑工程学院,北京100044)
Author(s):
ZHANG YanbinYANG Chengyong
(School of Civil Engineering, Beijing JiaoTong University, Beijing 100044, China)
关键词:
下穿位置地铁沉降差张开量
Keywords:
underling tunneling subway differential settlement opening distance
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.03.010
文献标志码:
A
摘要:
下穿施工引起既有地铁结构发生沉降变形及内力变化,同时导致地铁变形缝处产生沉降差(错台)及张开,从而影响地铁结构安全及行车安全。针对不同穿越位置,采用打靶法对微分方程进行数值求解,从地铁结构变形程度、内力变化规律、变形缝沉降差(错台)及张开量的变化趋势这四个方面进行了计算、分析。结果显示:中心位置穿越时,地铁结构的最大沉降值低于其它穿越位置,同时变形缝沉降差较小,基本未张开。从结构安全和行车安全两个方面综合判断,中心穿越是最优的穿越位置。
Abstract:
The settlement and the internal forces of existing subway tunnel due to underlying tunneling can lead to two indexes: differential settlement at the joint and opening distance of the joint, thus affect the subway structures and traffic safety. Aiming at different across locations, the shooting method was applied to solve the equations,and the analysis included four aspects: the settlement of existing subway, the internal force variation, the differential settlement at the joint and opening distance of the joint.Results showed that: when the underlying tunneling crossing at the center, the maximum settlement of the subway structure isless than other positions, while the differential settlement and opening distance of the joint remains a low level. By judging from the structural safety and traffic safety, the crossing at the center is optimal.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51278044)
更新日期/Last Update: 2014-03-30