摘要
锚固工程因其经济、有效的优点,被广泛应用于水利水电工程高边坡和地下洞室加固。通过回顾国内外水电工程岩土锚固技术的发展历程,总结了水电工程岩土锚固技术的基本特点,系统分析了水电工程锚固技术在加固作用与荷载传递机理、锚固结构预应力损失规律、新型锚固材料与锚固技术工艺开发以及环境因素对锚固性能的影响等方面的研究现状,指出水电工程岩土锚固技术研究中存在实际工程条件考虑不足、锚固结构预应力损失研究影响因素未耦合、新型锚固材料缺少实际应用场景以及环境因素对锚固性能的影响研究尚未定量化等问题,并针对目前国内水电工程已基本完成建设的发展阶段和实际需求,分析了水电工程锚固结构优化设计和锚固结构防护的发展趋势,提出了基于光纤监测技术与大数据平台相结合的信息化监测系统,强调了锚固工程耐久性对水电工程长久正常运行的重要性,据此对未来锚固系统长期安全性评价研究进行探究和展望,以期为水电工程锚固技术发展提供借鉴与参考。
Due to its economic and effective advantages,anchorage engineering is widely used in the underground cavern reinforcement and the high slopes of water conservancy and hydropower projects.This paper reviews the development history of geotechnical anchoring technology of hydropower engineering at home and abroad,summarizes its basic characteristics,and systematically analyzes its research status in terms of reinforcement action and load transfer mechanism,pre-stress loss law of anchored structure,development of new anchoring materials and anchoring technology process,and the influence of environmental factors on anchorage performance,etc.Based on the current research status of the research on geotechnical anchorage technology in hydropower projects,it is found that there are problems such as insufficient consideration of actual engineering conditions,uncoupled factors of prestress loss,and lack of practical application scenarios of new anchorage materials,and the influence of environmental factors has not been quantified.According to the development stage and actual demand of the basic completion of the construction of hydropower projects in China,the development trend of optimization designs and protection of anchorage structures in hydropower projects is analyzed,the information monitoring system based on the combination of optical monitoring technology and big data platform is proposed,and the importance of the durability of anchorage engineering to the long-term normal operation of hydropower projects is emphasized,with the purpose to explore and prospect the long-term safety evaluation of anchorage system in the future and provide certain reference value for the development of anchoring technology for hydropower projects.
作者
闻炼
黄亮
向欣
杨新志
章广成
WEN Lian;HUANG Liang;XIANG Xin;YANG Xinzhi;ZHANG Guangcheng(Faculty of Engineering,China University of Geosciences(Wuhan),Wuhan 430074,China;Zhongnan Eaploration and Foundation Engineering Co.,Ltd.,Wuhan 430081,China;China Three Gorges Corporation,Wuhan 430010,China)
出处
《安全与环境工程》
CAS
CSCD
北大核心
2023年第4期35-45,共11页
Safety and Environmental Engineering
基金
国家自然科学基金项目(41931295)
中国长江三峡集团有限公司科研项目。
关键词
水电工程
岩土锚固技术
锚固机理
荷载传递机理
预应力损失
光纤监测技术
长期稳定性
hydropower engineering
geotechnical anchorage technology
anchoring mechanism
load transfer mechanism
prestress loss
optical monitoring technology
long term stability
