电力勘测设计Issue(7)：5-11,7.DOI:10.13500/j.dlkcsj.issn1671-9913.2024.07.002
扩大头笼芯囊锚杆在输变电工程边坡支护中的研究及应用
Research and Application of End-Expanded Core-Bagged Anchor in Slope Support of Power Transmission and Transformation Project
摘要
Abstract
The extending head anchor provides sufficient anchorage force due to its anchorage section and the end effect of the extended-head bolt,which has the characteristics of large pull-out bearing capacity,strong adaptability and good engineering economy.In recent years,the technology has developed rapidly,and has been widely used in building floor anti-floating,deep foundation pit support,slope treatment and other projects.The interaction process and failure mode of a new type of end-expanded core-bagged anchor bottom structure with soil were analyzed by using finite element software MIDAS/GTS.The interaction process and failure mode of a new type of bottom anchor structure with soil were analyzed by using finite element software MIDAS/GTS.The rationality of the standard formula for calculating the ultimate pulling capacity was verified,and the factors affecting the ultimate pulling capacity were discussed.According to the example of soil slope of a 220 kV power transmission and transformation project,The feasibility and good economic and technical effect of this technology in power transmission and transformation project are verified by the design comparison and analysis of the new type of end-expanded core-bagged anchor bottom structure support and the ordinary anchor support.关键词
输变电工程/扩大头锚杆/有限元/极限抗拔承载力/边坡支护Key words
transmission and transformation project/extending head anchor/finite element/ultimate pulling capacity/slope support分类
动力与电气工程引用本文复制引用
罗惟贤,周鲲,谭彬,林新,吴戈..扩大头笼芯囊锚杆在输变电工程边坡支护中的研究及应用[J].电力勘测设计,2024,(7):5-11,7.基金项目
国网湖南省电力有限公司科技项目(5216A222000Q). （5216A222000Q）
