Development of multi-functional anchorage support dynamic-static coupling performance test system and its application

作     者：Qi Wang Shuo Xu Bei Jiang Chong Zhang Zhe Sun Jingxuan Liu Cailin Jiao Qi Wang;Shuo Xu;Bei Jiang;Chong Zhang;Zhe Sun;Jingxuan Liu;Cailin Jiao

作者机构：State Key Laboratory for Tunnel EngineeringChina University of Mining&Technology-BeijingBeijing 100083China Research Center of Geotechnical and Structural EngineeringShandong UniversityJinan 250061China 

出 版 物：《International Journal of Mining Science and Technology》 (矿业科学技术学报（英文版）)

年 卷 期：2024年第34卷第3期

页      面：339-349页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51927807,52074164,42277174,42077267 and 42177130) the Natural Science Foundation of Shandong Province,China(No.ZR2020JQ23) China University of Mining and Technology(Beijing)Top Innovative Talent Cultivation Fund for Doctoral Students(No.BBJ2023048) 

主　　题：Anchorage support system Development of test system Dynamic-static coupling test Combined stress 

摘      要：In underground engineering with complex conditions,the bolt(cable)anchorage support system is in an environment where static and dynamic stresses coexist,under the action of geological conditions such as high stresses and strong disturbances and construction conditions such as the application of high *** is essential to study the support components performance under dynamic-static coupling *** on this,a multi-functional anchorage support dynamic-static coupling performance test system(MAC system)is developed,which can achieve 7 types of testing functions,including single component performance,anchored net performance,anchored rock performance and so *** bolt and cable mechanical tests are conducted by MAC system under different prestress *** results showed that compared to the non-prestress condition,the impact resistance performance of prestressed bolts(cables)is significantly *** the prestress range of 50–160 k N,the maximum reduction rate of impact energy resisted by different types of bolts is 53.9%–61.5%compared to non-prestress *** the prestress range of 150–300 k N,the impact energy resisted by high-strength cable is reduced by76.8%–84.6%compared to non-prestress *** MAC system achieves dynamic-static coupling performance test,which provide an effective means for the design of anchorage support system.