压力型锚索锚固段应力分布规律及锚固段设计  

Distribution of stresses on bonded length of pressure-type cable and design of anchorage segment

作　　者：雷金山[1] 阳军生[1] 杨秀竹[1] 王安正[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2010年第6期75-79,共5页Journal of Railway Science and Engineering

基　　金：湖南省自然科学基金资助项目(07JJ3104)

摘　　要：根据Mindlin问题的位移解和弹性力学理论,基于变形协调假定,导出了压力型锚索锚固段粘结应力和轴力分布弹性理论解。采用岩质边坡条件下的参数,对锚固段应力分布进行了计算,总结了软岩条件下锚固段应力分布特征,并具体分析了锚固体半径对应力分布的影响,提出在设计中可以利用应力分布弹性理论解计算得到的应力分布曲线和应力峰值进行锚固段设计的思路,为压力型锚索的设计计算提供了一种参考依据。According to Mindlin＇s solution of displacement and the theory of elasticity mechanics,based on the deformance-consistent premise,the elastic formulas for distributions of shear stress and normal stress on bonded length of pressure-type cable were derived.The characteristic of the stresses distribution along the length of anchorage segment was summarized with the parameters of rock slope.The influence to the distribution of stresses with the different radiuses of anchorage segment was analyzed.A reasonable method of the design of anchorage segment is given.A reference principle for design and calculation of the pressure-type cable is provided.

关 键 词：压力型锚索 应力分布 弹性理论解 锚固段设计 

分 类 号：TU457[建筑科学—岩土工程]