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矿山地震问题是人类地下采矿工程活动引起的一类地震现象,其研究是涉及多个学科领域的综合研究。与其相关的采矿工程、岩石力学与工程、地质学、固体地球物理学等学科的学者对这一问题进行了长期大量的研究,取得了一系列重要的研究结果。矿山地震问题本身具有涉及学科领域广、开采条件多样、地质条件复杂等特点,对矿山地震问题的研究也出现了百家争鸣的势态,研究思路、研究方法与手段以及对相关学术术语的定义与运用都存在很大的差异,国内外学界尚未对相关概念形成统一认识,本文从矿山地震相关学术术语的定义和矿山地震问题的研究方法为出发点,对矿山地震问题的研究提出了一些观点。 相似文献
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For reinforced concrete structures located along the seaside, the penetration of chloride ions into concrete may be a threat to the durability of the structures. Experimental investigations were carried out to study the effect of chloride content on the bond behavior between concrete and fiber reinforced polymer (FRP) plates. Direct shear tests were conducted on the FRP strengthened concrete members. Before testing, the specimens were immersed in NaCl solutions with concentrations ranging from 3%—15% for different time (0—120 d). Then, the specimens were dried and tested to obtain the initial and ultimate debonding loads, together with strain distributions along the FRP plates of different load values. The correlations between chloride content and debonding parameters are established. Test results show that the debonding parameters are closely related to the immersing time rather than the chloride content of the solution. 相似文献
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