| 堵河上游顺向结构岸坡变形破坏机理分析 |
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| 引用本文： | 陈立德, 彭轩明. 2008: 堵河上游顺向结构岸坡变形破坏机理分析. 工程地质学报, 16(S1): 217-221. |
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| 作者姓名： | 陈立德 彭轩明 |
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| 作者单位： | 1.宜昌地质矿产研究所 宜昌 443003 |
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| 基金项目： | 中国地质调查局大宁河流域环境工程地质调查评价(200412300003). |
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| 摘 要： | 堵河流域岸坡变形强烈,由此引起的浅层滑坡发育。本文在野外地质调查的基础上,详细描述了野外自然露头所观察到的顺向岩质岸坡变形现象,在对岸坡变形过程解剖的基础上,将堵河上游顺向结构岸坡的变形破坏过程分为:(1)伴随着卸荷裂隙及菱形结构体形成的初始蠕变阶段;(2)菱形结构体变形阶段;(3)弯曲折断带形成阶段;(4)拉张裂隙贯通阶段;(5)浅层变形失稳等5个阶段。对岸坡变形破坏过程的野外现场分析,有助于提高对岩石流变及岸坡变形破坏的认识,从而提高对此类河流岸坡防治工作水平。
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| 关 键 词： | 堵河上游 顺向岸坡 变形破坏 |
ANALYSE ON MECHANISM OF DIP SLOPE DEFORMATION AND FAILURE ALONG UPPER DUHE RIVER |
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| CHEN Lide, PENG Xuanming. 2008: ANALYSE ON MECHANISM OF DIP SLOPE DEFORMATION AND FAILURE ALONG UPPER DUHE RIVER. JOURNAL OF ENGINEERING GEOLOGY, 16(S1): 217-221. |
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| Authors: | CHEN Lide PENG Xuanming |
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| Affiliation: | 1.Yichang Institute of Geology and Mineral Resource, Yichang 443003 |
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| Abstract: | Dip slope deformation and failure deduced abound shallow rock mass landslides along Duhe river. On the basis the field investigation, the paper described the dip slope deformation and failure phenomenon on natural outcrops, and five stages were recognized as (1) Rheological stage with unloading cranny and rhombus rock mass formed, (2)Rhombus rockmass distortion stage, (3)Bend and break off stage, (4)Transfixiong stage of tensile crack, (5)Shallow deformation and failure stage. The field analysis on the process helps to understand the mechanics of slope deformation and failure and to prompt prevent and cure work on this kind of slope. |
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| Keywords: | Duhe river Dip slope Deformation and failure |
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