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水岩(土)相互作用与滑坡地质灾害的形成密切相关。选取仍处于变形阶段的三峡库区黄土坡临江滑坡体为研究对象,以从滑坡不同部位采集的8类滑坡不良地质体(包括滑带土、软弱层、软岩等)为研究样本,追踪测试各样本的矿物类型及含量、化学组分及颗粒级配等指标。经分析,各类不良地质体之间具有明显的同源性特征,在水岩(土)相互作用下,主要滑坡不良地质体的成因及转化过程得以清晰呈现。随后,另取主滑带附近垂直方向上的岩土体样本为例,结合试验数据,深入分析并直观展现了水岩(土)相互作用对岩土体微观结构和力学性能弱化的影响。本研究深入探讨了黄土坡临江滑坡体中的水岩(土)相互作用机理,研究成果对于了解相似滑坡灾害的形成过程和有针对性制定滑坡防治方案具有重要参考价值。
The interaction of water and rock (soil) is closely related to the formation of landslide geological disasters. This paper chooses the Linjiang landslide body of loess slope in the Three Gorges reservoir area which is still in the deformation stage as the research object. Based on the eight types of landslides (including slip-soil, soft soil and soft rock) collected from different parts of the landslide, Test samples of the mineral type and content, chemical composition and particle size and other indicators. The analysis shows that there are obvious homology features among various types of bad geologic bodies. Under the interaction of water and rock (soil), the formation and transformation process of the bad geological body of the main landslide can be clearly seen. Then, taking the sample of rock and soil in the vertical direction near the main slide as an example, the influence of the interaction of water, rock and soil on the microstructure and mechanical properties of rock and soil is analyzed deeply and combined with the experimental data. This study explores in depth the mechanism of water-rock interaction in the Linjiang landslide body on the loess slope. The research results are of important reference value for understanding the formation process of similar landslide hazards and making plans for landslide prevention and control.