【摘要】 通过对溪洛渡水电站坝区浅表生变形破裂形迹空间发育规律及浅表生结构组合型式的调查 ,结合地质地貌演化机制分析 ,探讨了坝区浅表生改造的机制模式。研究表明 ,浅表生改造与河谷地貌演化密切相关 ,改造方式有垂向卸荷和侧向卸荷 2种 ;由缓倾角断裂构成的板裂状岩体结构对浅表生改造起了重要控制作用 ,浅表生结构的典型组合型式为由陡、缓倾角断裂组合形成的“阶梯状”回弹错动型式。该研究对认识河谷岩体的岩体结构特征具有重要意义更多还原

【Abstract】 By investigating the space development rule of the epigenetic deformation and fracture trace and the combination pattern of epigenetic structure in dam area of Xiluodu hydropower station, the formation mechanism of epigenetic reformation is discussed in conjunction with the analysis of geologic physiological evolvement mechanism. Slaty rock mass structures which being made up of flat faults have played important role in controlling epigenetic reformation. The typical combination pattern of epigenetic structure is formed from steep dipping and flat faults. It is very important for understanding the feature of valley rockmass structure.更多还原