“串层锚杆”加固的反倾层状岩质边坡稳定性分析  

Stability analysis on anti-inclined layered rock slopes reinforced by anchor bars stringing strata together

作　　者：屈新 徐兴倩 吕谦 娄高中 QU Xin;XU Xingqian;LYU Qian;LOU Gaozhong(College of Water Conservancy,Yunnan Agricultural University,Kunming 650201,China;School of Civil and Architecture Engineering,Anyang Institute of Technology,Anyang 455000,China)

机构地区：[1]云南农业大学水利学院,云南昆明650201 [2]安阳工学院土木与建筑工程学院,河南安阳455000

出　　处：《人民长江》2021年第12期115-121,共7页Yangtze River

基　　金：国家自然科学基金项目(41867040,42107195);河南省自然科学基金项目(202300410011)。

摘　　要：针对目前“串层锚杆”设计中的不足,基于笔者提出的反倾层状岩质边坡倾倒破坏分析方法,建立了“串层锚杆”加固反倾向层状边坡的修正的力学模型,并构建了基于修正力学模型的极限平衡分析方法。新方法忽略了加固区岩层间的相互作用力,但考虑了未加固岩层间的作用力。在此基础上,以皖南板岩边坡为例,系统探讨了“串层锚杆”的长度、数量,以及加固位置对反倾向层状边坡稳定性的影响规律,给出了该边坡的“串层锚杆”最佳加固方案。In order to solve problems in design of anchor bars stringing slope strata together,based on the newly proposed approach of stability analysis upon toppling failure,we established a revised mechanical model for anti-inclined layered rock slopes reinforced by anchor bars stringing strata together.Moreover,a limit equilibrium analysis method based on the revised mechanical model was constructed.The new method considers interaction force of un-reinforced strata while ignores the interaction force between reinforced strata.Aiming at an anti-inclined layered slope in South Anhui Province reinforced by anchor bars stringing strata together,we discussed the influence of length,number and reinforcement location of anchor bars on slope stability.Finally,the best reinforcement plan of the slope was obtained.

关 键 词：串层锚杆 层状边坡 倾倒破坏 极限平衡 边坡稳定性分析 板岩边坡 

分 类 号：TU45[建筑科学—岩土工程]