铁道标准设计Issue(11)：97-100,4.
天坪岭隧道爆破振动对既有隧道衬砌受力影响监测分析
Monitoring of the Influence of Blasting Vibration from Tianpingling Tunnel on the Behavior of an Existing Tunnel
代勇 1周建春1
作者信息
- 1. 华南理工大学土木与交通学院,广州510640
- 折叠
摘要
Abstract
In order to study the influence of blasting vibration effect on the lining behavior of an existing adjacent tunnel and to evaluate the safety involved, in-situ monitoring was carried out. Three items were conducted including tunnel lining deformations, concrete surface strains and vibration speeds under different explosive charge quantities. Results showed that the maxim compressive strain on the left arch springing was 20.69 \le, far less than specified limit 1400^,6. The maximum vibration speed was 0. 84 cm/s, less than specified limit lOcm/s. Blasting program met the relevant design requirements.关键词
隧道/爆破振动/村砌应变/振动速度/变形监测Key words
Tunnel/ Blasting vibration/ Lining strain/ Vibration speed/ Deformation monitoring分类
交通工程引用本文复制引用
代勇,周建春..天坪岭隧道爆破振动对既有隧道衬砌受力影响监测分析[J].铁道标准设计,2011,(11):97-100,4.
