Theoretical Study on the Stress Distribution Law of the Anchorage Section of Anchor Cable with Pressure Dispersion Type on the High Slope of Highway
张春文 ZHANG Chun-wen；张艳 ZHANG Yan；徐民 XU Min；
非跃辉 FEI Yue-hui；陈瑶 CHEN Yao
（云南省交通科学研究院有限公司，昆明 650011）
（Yunnan Transportation Research Institute Co.，Ltd.，Kunming 650011，China）
摘要： 目前公路工程高边坡施工过程中通常会采用锚索结构进行支护，锚索根据受力特点主要分为拉力型、压力分散型和拉压复合型等。压力分散型锚索对于公路高边坡大型软弱岩层加固、滑坡治理等具有锚固能力强、锚固范围广等使用价值和显著优势，能显著提升工程安全性和稳定性，但由于压力分散型锚索结构复杂，锚固机理、锚固段受力特征理论研究不够成熟，导致压力分散型锚索运用不广泛，工程经济效益发挥不充分。本文基于Kelvin弹性位移解，理论推导分析压力分散型锚索锚固段应力分布规律，并通过现有试验数据作对比验证，为今后公路高边坡压力分散型锚索理论研究、现场试验和工程运用提供理论参考依据，提升工程运用经济效益。
Abstract: At present, during the construction of high slopes in highway engineering, the anchor cable structure is usually used for support. The pressure-dispersed anchor cable has the use value and significant advantages such as strong anchoring ability and wide anchoring range for the reinforcement of large and weak rock formations on high highway slopes and landslide control, which can significantly improve the safety and stability of the project. The structure is complex, and the theoretical research on the anchoring mechanism and the stress characteristics of the anchoring section is not mature enough, which leads to the insufficient application of the pressure-dispersed anchor cable and the insufficient economic benefits of the project. Based on the Kelvin elastic displacement solution, this paper theoretically deduces and analyzes the stress distribution law of the pressure-dispersed anchor cable anchorage section, and compares and verifies through the existing test data， to provide theoretical reference basis to improve the economic benefits of engineering application.
关键词： 高边坡；压力分散型锚索；锚固段应力分布规律；理论研究
Key words: high slope；pressure-dispersed anchor cable；stress distribution law of anchoring section；theoretical research
中图分类号：TU452 文献标识码：A 文章编号：1006-4311（2022）23-114-03
DOI:10.3969/j.issn.1006-4311.2022.23.037.
文章出处：张春文,张艳,徐民,等. 公路高边坡压力分散型锚索锚固段应力分布规律理论研究[J]. 价值工程,2022,41(23):114-116.
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