竖向圆形荷载作用下压力型锚索的受力分析  

Analysis of force of pressure type anchored cables under vertical circular load

作　　者：叶红[1,2] 陈燕平[3] 

机构地区：[1]武汉交通职业学院交通工程学院,湖北武汉430065 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070 [3]武汉交通职业学院艺术学院,湖北武汉430065

出　　处：《化工矿物与加工》2014年第9期32-35,共4页Industrial Minerals & Processing

基　　金：湖北省教育厅科学技术研究自然科学类项目(B2013227)

摘　　要：为了进一步研究压力型锚索的锚固机理,通过竖向圆形荷载作用下弹性地基半空间问题的解析解,推导了压力型锚索锚固段处正应力及剪应力的数值解,在此基础上对其影响因素进行了分析,得到了岩体的剪切模量、预应力荷载及锚索孔半径对应力分布曲线影响很大的结论,进一步丰富了压力型锚索锚固机理的研究内容。in order to study the anchorage mechanism of cables more precisely, the analytical solution to elastic foundation halfspace under vertical circular load tion to normal stress and shear is made and the numerical solustress in anchorage segment of pressure type anchored cables is derived. On this basis the factors influencing the stress distribution in pressure type anchored cables are analyzed with the conclusion that shear modulus of the rock mass and the hole radius of anchored cables have great influence on the stress distribution curve, which further enriches the research contents of mechanism of pressure type anchored cable anchorage.

关 键 词：弹性半空间 竖向圆形荷载 受力机理 影响因素 应力分布 

分 类 号：TD350.1[矿业工程—矿井建设]