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Research on A Dynamic Detection Technique for Anchorage Quality of the Anchor Bolt-Surroundings Rock System

机译:锚杆-围岩系统锚固质量动态检测技术研究

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Anchorage technology is applied widely to rock and civil engineering in order to strut, solidify the rock and control the stability of the rock. The use quantity of anchor bolt is enormous, reached 250 million per year at abroad, so the detection about the anchorage state is very important. We consider anchor bolt and its surrounding rock as a dynamic system in this paper, constitute the dynamic model of this system, and study the dynamic response in a transient shock load when the bolt is excited. Due to the system's dynamic model is a damping wave equation, it has different transient exciting response under different initial and boundary conditions, so the anchorage state of an anchor bolt can be recognized, and to realize the dynamic detection of the anchoring state.
机译:锚固技术被广泛应用于岩石和土木工程中,以支撑,固化岩石并控制岩石的稳定性。地脚螺栓的使用量巨大,每年在国外达到2.5亿,因此对地脚螺栓状态的检测非常重要。本文将锚杆及其围岩视为动力系统,构成该系统的动力学模型,研究了锚杆受激时瞬态冲击载荷下的动力响应。由于系统的动力学模型是一个阻尼波方程,在不同的初始和边界条件下具有不同的瞬态激励响应,因此可以识别锚栓的锚固状态,并实现锚固状态的动态检测。

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