【作者】 马润勇；

【导师】 彭建兵；

【作者基本信息】 长安大学 ， 地质工程， 2003， 博士

【摘要】 青藏高原大幅度隆升，使得高原周缘区所形成的天然地理环境为水资源的储蓄与开发创造了极为有利的条件，同时也由于高原强烈而持续的隆升，使得这些地区的工程地质环境条件变得极其复杂，区域稳定性条件极差。本文以黄河黑山峡大柳树坝址为例，系统地研究了青藏高原隆升所导致的构造活动效应及其工程危害效应。 本文在研究大量资料的基础上，首次提出并建立了在印度板块的推挤作用下，青藏高原递进式挤压隆升的动力学模式，同时详细研究了由于高原隆升所引起的活动构造效应、高原区活动断裂主要类型、分布规律及其地震活动性。在此基础上，作者深入研究了青藏高原东北缘区的构造活动效应、中卫-同心断裂的现代活动性，以及由于F₂₀₁断层的现代活动对坝基可能产生的错断效应。 文章同时基于断裂力学、岩石力学以及材料力学理论，将岩石破裂扩展概括为四种主要模式，并首次提出了断层的逆冲破裂扩展模式。对断层错断研究中，断层面两侧的相对错动问题作了系统研究，并概括出估算断层错动量的三种途径，据此通过数值分析，研究了大柳树坝基断层错动效应问题以及松动岩体的稳定性问题。最后对大柳树坝址区存在的工程错断问题进行了初步预测。更多还原

【Abstract】 Owing to the Qinghai-Tibet Plateau is uplifted by a big margin, border district of the plateau becomes a natural geographic environment in which the water resources can be stored up and develop efficiently, and at the same time, as a result of the strong and persistent uplift of the plateau, the engineering geology environmental condition of these districts gets extremely complex, and the regional stability condition is very adverse. This paper takes Daliushu dam site of Heishan gorge on Yellow River as a example, the tectonics activity effect and engineering risk effect which the plateau uplift cause are studied systematically.This paper based on the study of large numbers of data, firstly advanced a dynamics model of progressive compression uplift of the plateau, in which the cause of the plateau uplift is that India plate pushes and forces Qinhai-Tibet plate northwards. And besides the author also studied the tectonics activity effect which the plateau uplift cause, the major types of active fractures in the Qinghai-Tibet Plateau, the distribution regularity of the fractures and their seismic activity in detail. Based on this, the author studied the tectonic activity effect along northeastern margin of Qinghai-Tibet Plateau, the recent activity of the Zhongwei-Tongxing fault, and the fault resistance effect.The paper also based on mechanics of fracture, rock mechanics, mechanics of materials, sort the rock failure and spread into four models, and the model of the thrust spread of fault is firstly advanced. In the study of fault rupturing, the displacement of the fault surface is studied in detail. And sort the estimate of fault displacement into three ways. By numerical analysis, studied the problem of the fault resistance effect of Daliushu dam site and the stability of dynam-relaxed rockmass. Finally Predicted the problems of fault resistance.更多还原