北京水务Issue(2)：41-45,5.DOI:10.19671/j.1673-4637.2025.02.09
植筋钻孔偏差控制技术在水利工程除险加固中的应用
Application of deviation control technique for anchoring hole drilling in risk mitigation and reinforcement of hydraulic engineering
史常浩 1张淼 1郭一健 1王东水 1李博 1周鑫1
作者信息
摘要
Abstract
In order to address the stringent technical standards for deep-hole anchoring and the formidable challenge of controlling drilling deviations in aged hydraulic concrete structures,a rigorous comparative experimental investigation was undertaken,with a particular focus on the risk mitigation and reinforcement project of the Lugou Bridge Flood Diversion Hub situated on the Yongding River.This study aimed to critically evaluate the effectiveness of deviation control techniques in the context of reinforcing hydraulic engineering structures.The empirical results obtained from this study demonstrated that all experimental holes met the stringent criterion of"The verticality deviation of anchoring holes at connection nodes should not exceed 1％of the hole depth by employing a laser level for precise deviation control during the drilling process and adopting sophisticated"three-stage"and"two-stage"hole formation methodologies."Subsequent meticulous measurements confirmed that the verticality deviations were consistently less than 1 cm,with no evidence of cracking or structural damage observed in the concrete surface of the pier top.A comprehensive technical and economic analysis further substantiated the benefits of these methodologies,revealing potential cost savings of 464,000 yuan and a reduction in construction time by approximately 36 days.These findings underscore the significant potential of these techniques to enhance construction efficiency and reduce project costs in a meaningful way.In conclusion,the research outcomes provide robust technical support for the broader application and implementation of these deviation control techniques in the field of engineering,contributing to the advancement of knowledge and practice in this critical area.关键词
冲击钻/深孔植筋/强碳化/除险加固/水闸Key words
impact drill/deep hole anchoring/strong carbonated concrete/hazard mitigation and reinforcement/sluice gate分类
建筑与水利引用本文复制引用
史常浩,张淼,郭一健,王东水,李博,周鑫..植筋钻孔偏差控制技术在水利工程除险加固中的应用[J].北京水务,2025,(2):41-45,5.
