Abstract
The 1st bridge of the Jialing River in Pengan County is erected over the Jialing River, a tributary of the Yangtze River. Due to earthquakes and perennial high load operation, the overall technical condition is “Class Ⅴ”, which cannot meet the requirements of the design load grade. This bridge is the longest highway bridge dismantled in Sichuan Province. Its structure is a multi-span continuous thin-walled box ribbed arch bridge. In addition, there are obvious diseases, so the demolition is difficult, and the safety risk is great. For the demolition of the bridge by controlled blasting, numerical simulation, shaped charge cutting blasting, long hanging deep hole drilling, and other technical means were adopted, and the demolition work was successfully completed. The technical experience can provide reference for similar bridge demolition.
Publication Date
3-17-2023
DOI
10.14048/j.issn.1671-2579.2023.01.022
First Page
130
Last Page
134
Submission Date
March 2025
Recommended Citation
Shaojun, MA; Huibin, CHEN; Wendong, CHAI; Chunquan, ZHANG; and Yuan, WANG
(2023)
"Research and analysis on controlled blasting demolition of continuous thin‐walled box ribbed arch bridge,"
Journal of China & Foreign Highway: Vol. 43:
Iss.
1, Article 22.
DOI: 10.14048/j.issn.1671-2579.2023.01.022
Available at:
https://zwgl1980.csust.edu.cn/journal/vol43/iss1/22
Included in
Construction Engineering and Management Commons, Other Civil and Environmental Engineering Commons, Statistical Methodology Commons, Structural Materials Commons, Transportation Engineering Commons