Abstract
In the construction of pile hole blasting of group pile foundation of bridges, due to the small clear distance between piles, the blasting vibration will have adverse effects on the wall protection of adjacent pile holes and the poured pile core concrete. Measures thus should be taken to control the seismic wave vibration velocity. In view of the inapplicability of conventional blasting vibration reduction measures such as reducing charge and setting isolation ditch in the construction of pile group foundation of the bridge, this paper proposed vibration reduction measures such as setting isolation holes and using air bags to replace part of stemming. The feasibility and vibration reduction effect of the two measures were verified by comparative tests, and the practical application was carried out in the construction of the pile foundation of the 4# main tower of Kaizhou Lake Grand Bridge, with good results obtained. In addition, the quality and safety of pile group foundation construction are guaranteed without greatly increasing the cost and reducing the work efficiency, which has a good reference value for the construction of similar projects.
Publication Date
3-17-2023
DOI
10.14048/j.issn.1671-2579.2023.01.021
First Page
126
Last Page
129
Submission Date
March 2025
Recommended Citation
Lidun, LONG; Zhongyan, JI; Shaofang, LI; and Xu, ZHOU
(2023)
"Research on vibration reduction measures of short‐hole blasting for pile group foundation of bridge,"
Journal of China & Foreign Highway: Vol. 43:
Iss.
1, Article 65.
DOI: 10.14048/j.issn.1671-2579.2023.01.021
Available at:
https://zwgl1980.csust.edu.cn/journal/vol43/iss1/65
Included in
Construction Engineering and Management Commons, Other Civil and Environmental Engineering Commons, Statistical Methodology Commons, Structural Materials Commons, Transportation Engineering Commons