内钢板高强混凝土井壁锚卡的力学特性研究  

Research on Mechanical Characteristics of Rivets for High Strength Concrete Shaft Lining with Inner Steel Cylinder

作　　者：齐善忠[1] 黄家会[2] 

机构地区：[1]黄河水利职业技术学院,河南开封475004 [2]中国矿业大学力学与建筑工程学院,江苏徐州221116

出　　处：《煤炭工程》2015年第12期100-102,共3页Coal Engineering

基　　金：国家高技术研究发展计划(863计划)(2012AA06A401);河南省教育厅科学技术研究重点项目(13B440124)

摘　　要：通过模型试验对内钢板-高强混凝土井壁锚卡的力学性能进行了研究,结果表明随着井壁作用力的增加锚卡受到的拉应变逐渐增大,并且当内钢板进入塑性变形后应变增长加快,明确了井壁在荷载作用下锚卡的应力-应变特性,以及破坏特征。通过数值模拟进一步明确了锚卡的最大拉应力位置并不在锚卡与内钢板的焊接位置,而是在离开焊接位置约1/3倍的锚卡长度处。The mechanical characteristics of rivets were studied for high strength concrete shaft lining with inner steel cylinder, through model experiment. The results showed that, the strain on rivets raised gradually with the increase of lateral force, and the strain growth accelerated, when the inner steel plate enters plastic deformation. The stress - strain and failure characteristics of rivets under load were obtained. According to the numerical simulation, the maximum stress was at 1/3 rivet away from the welding point.

关 键 词：内钢板 复合井壁 锚卡 模型试验 数值模拟 

分 类 号：TD265.32[矿业工程—矿井建设]