南京水西门高架桥爆破拆除及振动测试分析BLASTING DEMOLITION AND VIBRATION ANALYSIS OF SHUIXIMEN VIADUCT IN NANJING
吕海军,龙源,廖昆,方宝山,王志强
LV Hai-jun1,2,LONG Yuan1,LIAO Kun1,FANG Bao-shan2
摘要(Abstract)：
如何在城区环境复杂条件下进行高架桥的爆破拆除并确保爆破安全,成为城市改扩建过程中亟待解决的难题。以南京市城西干道水西门高架桥爆破拆除工程为例,结合振动监测数据分析,通过高架桥爆破拆除过程中产生的爆破振动和塌落振动的对比研究,得出塌落振动强度与塌落体下落高度的关系,以及塌落振动衰减的一般规律,并提出了降低塌落振动的可行方法,可为类似工程提供参考。
To make the controlled blasting demolition of viaducts in complex urban environment safely has become a hard problem needing to be settled urgently in some urban reconstruction and extension projects.Taking the blasting demolition project of the ShuiXiMen viduct in the west main roads of Nanjing for example,combined with monitor vibration data analysis of the relation between collapse vibration strength and height of the collapse building,collapse vibration attenuation rules was obtained based on the comparison between blasting vibration and collapse vibration in the course of viaduct blasting demolition,and some feasible methods of reducing vibration have been put forward,which could offer reference for future similar projects.
关键词(KeyWords)：
高架桥;爆破拆除;爆破振动;塌落振动;振动分析
Viaduct;Blasting demolition;Blasting vibration;Collapse vibration;Vibration analysis
基金项目(Foundation):
作者(Author):
吕海军,龙源,廖昆,方宝山,王志强
LV Hai-jun1,2,LONG Yuan1,LIAO Kun1,FANG Bao-shan2
参考文献(References)：
- (1)杨梓,徐文平.旧桥拆除方法要览和案例简介[J].特种结构,2010,27(6):88-90.
- (2)刘红生,袁成忠.连续箱梁桥的拆除施工技术[J].国外建材科技,2008,29(1):91-94.
- (3)张贤虎,周俊珍,徐仲坤,等.闹市区复杂环境高架桥爆破拆除[J].爆破,2006,23(3):50-53.
- (4)郝晓宁,龙源,谢刚.高架桥爆破拆除倒塌过程数值模拟研究[J].爆破,2010,27(4):78-81.
- (5)钟明寿,龙源,谢全民,等.龙海大厦拆除爆破塌落振动与爆破振动的对比分析[J].工程爆破,2009,15(4):58-61.
- (6)汪旭光,于亚伦.拆除爆破理论与工程实例[M].北京:人民交通出版社,2008.
- (7)齐世福.军事爆破工程设计与运用[M].南京:解放军理工大学工程兵工程学院,2005.
- (8)谢先启.精细爆破[M].武汉:华中科技大学出版社,2010.