摘要
依据Mindlin解,针对拉力集中型和拉力分散型锚杆,分别推求其锚固段的剪应力和轴向应力的分布规律。通过实例分析,得出拉力集中型和分散型锚杆锚固段应力分布的特点。讨论了相关力学参数对拉力分散型锚杆锚固段应力分布的影响,结果表明,相对弹性模量、预应力和锚固体直径对锚固段的应力分布影响较大,而岩体内摩擦角和泊松比的影响很小。
According to Mindlin's solution,the distribution law of shear stress and axial stress in the anchorage section of the concentrated and dispersed tensile bolts are deduced respectively.Through the case analysis,the stress distribution of the tensile force and the dispersed anchor is obtained.The influence of the mechanical parameters on the stress distribution of the tension dispersion type anchor is discussed.The results show that the relative elastic modulus,the prestress and the anchor solid diameter have great influence on the stress distribution of the anchorage zone,and the influence of the friction angle and Poisson's ratio is very small.
作者
范昕然
FAN Xinran(CCCC(Tianjin)Eco-Environmental Protection Design&Research Institute Co.,Ltd.,Tianjin 300202,China)
出处
《建筑结构》
北大核心
2023年第S01期3009-3013,共5页
Building Structure
