摘要
基于锚固体系的锚杆动力学及应力波运动学理论,研究了锚固体系的振动特征和锚固体系中声频应力波传播的能量衰减规律,进而提出快速普查检测锚杆锚固状态的声频应力波法;介绍了依据拉拔曲线转折段两边割线的交点法确定锚杆锚固力的无损拉拔检测技术原理,并实际应用于潘集第一煤矿巷道锚杆支护施工质量的检测。
Based on dynamics of rock bolt and kinematics of stress wave in grouted bolt system,the vibration characteristics of grouted bolt system and energy attenuation of stress wave are studied. A method of quick inspection for anchoring state by using sonic-frequency stress wave is proposed. Also nondestructivedetermination of anchoring force by intersection of secant lines of the turning segment of a drawing curve is discussed. All results are confirmed by construction quality inspection for bolting in the first coal mine of Panji.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第1期126-129,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家科技攻关项目
