位移释放式锚固尾及其试验研究  

Study on displacement release anchors tail and its experiment

作　　者：孟达[1] 张梅[2] 

机构地区：[1]中国科学院力学研究所,北京100190 [2]河北农业大学城乡建设学院,河北保定071000

出　　处：《中国矿业》2015年第3期102-105,共4页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51274185);国家重点基础研究发展计划(973)项目资助(编号:2010CB731500)

摘　　要：本文介绍了一种新型位移释放式锚固尾。通过使用应变式装置作为锚固尾克服了巷道支护结构修复期短的问题,延长了锚杆(索)的使用寿命。采用柔性三轴仪分别对单碗,一对碗及三对碗进行了单轴压缩试验,对不同组合下碗的最大承载力,达到极限承载力的时间,及其变形进行了研究。试验结果表明:对碗数越多,最大承载力会降低,但达到极限荷载的时间会延长,设计时可根据实际情况进行优化。This paper introduces a new displacement release anchors tail .By using the strain gauge device as anchoring tail overcomes the problem that the cycle time of fixing the roadway is too short ,and extended the bolt （cable） service life simultaneously .Using flexible triaxial apparatus ,single bowl ,a pair of bowls and three pairs of bowls uniaxial compression tests were carried out .The maximum bearing capacity for different combinations of the bowl ,the time to reach the ultimate bearing capacity ,and its variants have been studied .The results showed ：With increasing the number of bowls ,the maximum bearing capacity will be reduced ,but to reach the ultimate load time will be extended ,and when designs it can be optimized according to actual conditions .

关 键 词：位移释放式锚固尾 巷道支护 锚杆 柔性三轴仪 

分 类 号：TD-0[矿业工程]