CHANG Hong, JIN Weiqun, WANG Shichang, XIAO Shangbin. 2011: SLOPE STABILITY RESPONSE TO RIVER GEOMORPHIC PROCESS IN MIDDLE AND LOWER REACHES OF QINGJIANG RIVER. JOURNAL OF ENGINEERING GEOLOGY, 19(5): 756-763.
    Citation: CHANG Hong, JIN Weiqun, WANG Shichang, XIAO Shangbin. 2011: SLOPE STABILITY RESPONSE TO RIVER GEOMORPHIC PROCESS IN MIDDLE AND LOWER REACHES OF QINGJIANG RIVER. JOURNAL OF ENGINEERING GEOLOGY, 19(5): 756-763.

    SLOPE STABILITY RESPONSE TO RIVER GEOMORPHIC PROCESS IN MIDDLE AND LOWER REACHES OF QINGJIANG RIVER

    • Landslides and avalanches in mountains are the important geological events in slope evolution.Their emergencies and development are closely related to the relative river geomorphic process.Although studies on the factors affecting landslide are considerable now,they are mostly limited to the landslide itself.This paper is based on studying of the river geomorphic process.It further discusses on the response relationship between slope stability and river change.The results can help us to understand the slope evolution more in-depth and to serve better to the evaluation and prediction of slope stability.By the method of analysis of natural history and analogy,and age dating,the paper discusses the shifting and evolution of the valley in the middle and lower reaches of Qingjiang River.It is inferred that the river geomorphic process began in Late Middle Pleistocene.The inferring is according to age dating of the river terraces and comparison with adjacent area's terrace age and archaeological data,and based on surveying and analyzing systematically the river terraces and linear continuous distribution of the ancient valley(both bottom and single bottom valley in valley).Through age comparison with landslides and terraces,four peaks of landslide emergencies are discovered according to the ages of some important landslides.They coincide with the ages of the four river terraces.At the same time,it can be discovered that the slope stability does exist significant difference and regularity.This discovery is based on the comparison of landslides distribution and the four types of the river evolution.
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