| Anchorage system on rock and soil layer is a kind of technology using pole units in tension buried in the stratum. The anchorage system quality's influence factors are extremely varied and complicated. These effect factors include the inner fabric material in the anchors, stratum mechanical property and impact ingredient from outer entironment. The failure in predicting stability of the anchorage system will bring projects inestimable loss, so we must check if the anchor bars play the roles according previous design. The quality detection system of anchorage system is a technology issue crying out for solving to reinforce security production of civil and hydraulic engineering in which art of anchorage is a mean of support pattern. Meanwhile it is a kind of reliable means for construction quality control and reliability test of engineering. The traditional testing way of static load can not meet the requirement of wide scope testing for anchor bars in practice, so it is necessary and significant to research and apply the dynamic test way to compensate the static test way. This dissertation aims for the phenomenon that actual engineering rock under anchorage system is in the prestressing condition, which is changing constantly. The acoustic characteristics research of anchored rock under load is been brought forward. Considering the effect of rock's anchorage load, the academic model of acoustic characteristics relevant to bars' mechanical characteristics is been established. After a series of theory research and experiment research on the question of anchorage system's integrality and the question of bearing capacity, drawing up corresponding computing software, main conclusions as follow are gained.1. Mechanics questions about the load diversion in anchor bar from anchor rope to grouting and combination of grouting and drill hole wall have been discussed. There has been some general knowledge about the distribution, formation of anchorage force, anchorage mechanism and main factors leading anchor bar loss efficacy. Meanwhile this dissertation gives discussions on existent issues in the means of anchorage engineering's test and studys out settlement approach.2. Based on theory of elastodynamics, this dissertation has educed equation of motion of elastic wave spreading in anchor bar with circular section, built up theoretical model of acoustic detection of anchor bar, deduced analytic solution of homogeneous and heterogeneous wave equation in unbounded domain, half-unbounded domain and bounded retion. Finally, basic parameters of dynamometry, quantitative relations between stress wave velocity and medium parameters are gained.This dissertation has built up finite element model of dynamic detection, meanwhile made numerical simulation of flaws in anchor bars and gained the numerical solution of displacement field. The discussion on the solution in time domain and3. frequency domain has shown that the flaws in anchor bar will lead to a series of transformation of detecting curves. The solution corresponds with that of academic analysis. It is useful to identify detecting curves on site for reference.4. Develop research of direct deduce theory and inverse deduce theory on low strain dynamic detection. Establish correlative math model of discrete and distributing parameter system concerning anchorage system's vibration response. Achieve transient response's fundamental characters. Thus, put forward confirming means of damp modulus, stress wave velocity, impedance, and dynamic elasticity modulus of anchorage system.5. Based on model experiment in doors, the dissertation has discussed anchorage mechanism, failure mechanism of anchor bar and gains distributing curves of shearing strength in the surface of anchorage area and axial force on cross section along anchorage length. Locale implement method of low strain dynamic detection has been brought forward too.6. According to numerical solution of displacement field, 3-layer multi-resolution wavelet analysis and wavelet packet analysis on...
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