论文部分内容阅读
三河口水利枢纽是引汉济渭工程两大水源工程之一,边坡岩体变形特性是主要的岩石力学问题,为此用刚性承压板法和钻孔变形试验,针对坝肩边坡不同岩性、不同风化程度岩体开展了大量原位试验。综合分析92个点刚性承压板变形试验成果,获得了不同岩体变形参数范围,重点讨论了不同变形曲线类型、各因素对试验成果的影响。介绍了钻孔变形试验方法及原理,分析了坝肩边坡岩体钻孔变形试验成果,最后对两种方法的变形试验进行对比,并综合评价了边坡岩体的变形特性。结果表明,该工程坝肩边坡岩体具有较高的变形参数,变形曲线大部分为直线型,岩体变形特性与岩体类别密切相关,两种试验方法所得岩体变形参数总体趋势一致。
Sanhekou Hydro-junction is one of the two major water sources leading to Hanjiwei Project. The deformation characteristics of slope rock mass are the main rock mechanics problems. For this purpose, with rigid bearing plate method and drilling deformation test, Lithology, different degree of weathering Rock mass carried out a large number of in situ tests. A comprehensive analysis of the results of deformation test of 92 points rigid bearing plate obtained the deformation parameters of different rock mass range, focusing on the different types of deformation curve, the impact of various factors on the test results. The method and principle of borehole deformation test are introduced. The results of borehole deformation tests are analyzed. Finally, the deformation tests of the two methods are compared and the deformation characteristics of slope rock mass are comprehensively evaluated. The results show that the rock mass of the dam abutment has high deformation parameters and the deformation curves are mostly linear. The deformation characteristics of the rock mass are closely related to the rock mass type. The deformation parameters of the rock mass obtained by the two methods are generally consistent.