BOLT

作品数：183被引量：446H指数：13
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美国安杜瑞尔工业公司发布Bolt-M无人机
《轻兵器》2025年第1期44-44,共1页李孟远 
2024年10月10日,安杜瑞尔工业(Anduril Industries)公司对外发布一款新式自主攻击无人机,其显著特点是无需专业人员操作就能执行对敌方目标的精确打击任务。该无人机名为Bolt-M,其也是一款智能型“巡飞弹”,作战过程中可协助操作人员识...
关键词：无人机 瑞尔 巡飞弹 精确打击 敌方目标 智能型 
Optimizing support performances of bolt reaming and anchoring in a coal drift被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第10期3885-3906,共22页Wei Wang Yishan Pan Yonghui Xiao Lianpeng Dai Xinping Zhang Yuheng Wang Xufeng Qin Yanfei Zhu Yan Liu Gang Li 
supported by the National Natural Science Foundation of China-Liaoning Joint Fund Key Project(Grant No.U1908222);the National Natural Science Foundation of China Youth Science Fund(Grant No.52104087).
In current practice of bolt reaming and anchoring of roadways in soft coal and rock mass,resin cartridges bend easily under the strong pushing and stirring of bolts,and the resin accumulates in the bolt-reamed area an...
关键词：Bolt reaming Enhancement device Reamingeanchoring performance Strength of reamingeanchoring solid Bearing capacity 
Mechanical behavior of 2G NPR bolt anchored rock samples under static disturbance loading
《Journal of Mountain Science》2024年第7期2494-2516,共23页WANG Jiong JIANG Jian WANG Siyu CHANG Yiwen LIU Peng HE Manchao CHENG Shuang 
provided by the National Natural Science Foundation of China(52074300);the Program of China Scholarship Council(202206430024);the National Natural Science Foundation of China Youth Science(52104139);Yueqi Young Scholars Project of China University of Mining and Technology Beijing(2602021RC84);Guizhou province science and technology planning project([2020]3007,[2020]3008)。
The deep mining of coal resources is accompanied by severe environmental challenges and various potential engineering hazards.The implementation of NPR(negative Poisson's ratio)bolts are capable of controlling large d...
关键词：Anchored rock samples Static disturbance load Acoustic emission characteristics Digital speckle Negative Poisson's ratio 
Design,Development and Testing of the JTech Bolt for Use in Static,Quasi-Static and Dynamic Domains
《Journal of Civil Engineering and Architecture》2024年第6期282-295,共14页Trent Roberts 
Designing a rock reinforcement element requires knowledge of:geomechanical behaviour,interaction of the reinforcement element with rock mass and the element’s mechanistic response in static and dynamic environments.U...
关键词：Rock reinforcement geomechanical behavior STATIC QUASI-STATIC dynamic domains 
Investigation of the failure mechanism and theoretical model of bolt-reinforced shallow tunnel faces with different bolt lengths
《Underground Space》2024年第3期126-142,共17页Xiao Zhang Li Yu Mingnian Wang Henghong Yang Ming Lu Zexing Li Langzhou Tang 
the National Natural Science Foundation of China(Grant Nos.52208404 and 52378411).
Using fiberglass bolts to reinforce a tunnel face is a practical auxiliary technology for ensuring tunnel face stability in soft ground.The reinforcing effect and the economics of this technology are significantly aff...
关键词：Failure mechanism Face bolting Tunnel face stability Bolt length Reinforcing mechanism 
Analysis of the interaction between bolt-reinforced rock and surface support in tunnels based on convergence-confinement method被引量：3
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第6期1936-1951,共16页Zhenyu Sun Dingli Zhang Qian Fang Yanjuan Hou Nanqi Huangfu 
funding support from the Fundamental Research Funds for the Central Universities(Grant No.2023JBZY024);the National Natural Science Foundation of China(Grant Nos.52208382 and 52278387).
To investigate the interaction of the bolt-reinforced rock and the surface support,an analytical model of the convergence-confinement type is proposed,considering the sequential installation of the fully grouted rockb...
关键词：Analytical model Longitudinal tunnel displacement Fictitious pressure Active rockbolts Surface support reaction pressure Tunnel design 
Development of component stiffness equations for thread-fixed one-side bolt connections to an enclosed rectangular hollow section column under tension
《Frontiers of Structural and Civil Engineering》2024年第4期568-586,共19页Fu-Wei WU Yuan-Qi LI 
This study was supported by the National Natural Science Foundation of China(Grant Nos.51978500 and 51538002).
The derivation and validation of analytical equations for predicting the tensile initial stiffness of threadfixed one-side bolts(TOBs),connected to enclosed rectangular hollow section(RHS)columns,is presented in this ...
关键词：initial stiffness component based method thread-fixed one-side bolt rectangular hollow sections analytical equation 
开挖补偿法防控深部地下岩爆灾害——引汉济渭工程秦岭输水隧洞案例分析被引量：1
《Engineering》2024年第3期154-163,共10页Jie Hu Manchao He Hongru Li Zhigang Tao Dongqiao Liu Tai Cheng Di Peng 
supported by the National Natural Science Foundation of China (41941018);the Foundation of State Key Laboratory for Geomechanics and Deep Underground Engineering (SKLGDUEK 2217);the Foundation of Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province (PCMGH-2022-03).
Rockburst disasters occur frequently during deep underground excavation,yet traditional concepts and methods can hardly meet the requirements for support under high geo-stress conditions.Consequently,rockburst control...
关键词：ROCKBURST Excavation compensation method Pre-stressed support Negative Poisson’s ratio bolt Tunnel boring machine 
Failure characterization of fully grouted rock bolts under triaxial testing被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第3期778-789,共12页Hadi Nourizadeh Ali Mirzaghorbanali Mehdi Serati Elamin Mutaz Kevin McDougall Naj Aziz 
Confining stresses serve as a pivotal determinant in shaping the behavior of grouted rock bolts.Nonetheless,prior investigations have oversimplified the three-dimensional stress state,primarily assuming hydrostatic st...
关键词：Rock bolts Bolt-grout interface Bond strength Push test Triaxial tests 
Influence of bolt dynamic installation on topography characteristics and mechanical behaviors of CFRP interference-fit bolted joints
《Chinese Journal of Aeronautics》2024年第2期482-500,共19页Xiaohe WANG Zengqiang CAO Yuehaoxuan WANG Yingjiang GUO 
co-supported by the National Commercial Aircraft Manufacturing Engineering Innovation Fund,China(No.COMAC-SFGS-2-22-1816);Shaanxi Province Key Research and Development Program Projects,China(No.2022GXLH-02025);Shaanxi Province 100 Scientific and Technological Achievements Transformation Action Projects,China(No.2021CGBX-11)。
As the controlled research of Dynamic Installation(DI)and Static Installation(SI),a new interference installation method was developed based on electromagnetic loading to enhance the mechanical properties of composite...
关键词：Carbon Fiber-Reinforced Polymer(CFRP) Bolted joints Interference-fit Electromagnetic installation Finite Element Analysis(FEA) Damage mechanics Bearing behavior 
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