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首页> 外文会议>International Symposium on Geotechnical Measurements and Modelling; Sep 23-25, 2003; Karlsruhe, Germany >Monitoring and physical model simulation of a complex slope deformation in neovolcanics
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Monitoring and physical model simulation of a complex slope deformation in neovolcanics

机译：新火山岩复杂边坡变形监测与物理模拟

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摘要

Rigid basalt lava flows alternating with tuffs and tuffites have been found deformed on a slope of the Labe River Canyon in the Ceske Stf edohori Mts., Bohemia, in an unusual complex configuration. The top section of the deformation with huge basalt blocks was separated from the lower one by a conspicuous platform inclined backwards. This raised a question about the origin and development of such a deformation, as well as about present movements. A series of maps were prepared for the area, and a series of longitudinal and cross sections were surveyed. Besides, monitoring in both the sections was arranged that evidenced present movements. The lower section was found in a slope movement of standard development inhibited by a local brook erosion. The higher section, however, showed very low atypical movements. As for the platform, physical models were prepared simulating the process of structure formation in a stratified system of alternating rigid and ductile beds. The models indicated formation of the platform as of the result of specific deep deformations due to the process of long-term river erosion in the canyon. Apart of that, different deformation conditions in the two separated sections could be observed in the models. This analysis came to a final view explaining the present morphology of the slope in accordance with monitoring results and other observations.
机译：在波西米亚Ceske Stf edohori山的Labe河峡谷的斜坡上，刚硬的玄武岩熔岩流与凝灰岩交替出现，并发现凝灰岩以异常的复杂构造变形。带有巨大玄武岩块的变形的顶部与下部由一个向后倾斜的明显平台隔开。这引起了关于这种变形的起源和发展以及当前运动的问题。为该区域准备了一系列地图，并对一系列纵向和横截面进行了调查。此外，安排了两个部分的监测，以证明目前的动向。下部被发现为标准开发的坡度运动，受到局部溪流侵蚀的抑制。然而，较高的部分显示出非常低的非典型运动。对于平台，准备了物理模型，以模拟在刚性和延性床交替的分层系统中结构形成的过程。这些模型表明了平台的形成，这是由于峡谷中长期河流侵蚀过程引起的特定深度变形的结果。除此之外，在模型中可以观察到两个分开的部分中不同的变形条件。经过分析，最终得出了根据监测结果和其他观察结果解释斜坡当前形态的最终视图。

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