Critical hydraulic gradients for seepage-induced failure of landslide dams
نویسندگان
چکیده
منابع مشابه
Numerical computation of seepage erosion below dams (piping)
In delta areas the land is protected from floods and high tides by dikes. In general these are constructed of impervious clays and built on a sandy aquifer as subsoil. Such structures are vulnerable to an erosion effect called piping. The actual word 'piping' refers to the development of shallow channels in the sand below the dike, which begins at the downstream side of the structure. Here ofte...
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Seepage failure in the form of piping can strongly influence the stability of block-in-matrix-soils (bimsoils), as well as weaken and affect the performance of bimsoil structures. The multiple-factor evaluation and optimization play a crucial role in controlling the seepage failure in bimsoil. The aim of this study is to improve the ability to control the piping seepage failure in bimsoil. In t...
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seepage analysis through earth dams is employed to determine the water loss. moreover, as the magnitude of pore pressure in dam body is calculated using seepage analysis, this analysis plays an important role on the stability analysis in these types of structures. as the hydraulic conductivity of the earth dam materials, is considered as one of the effective parameters on the magnitude of seepa...
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Most of the hydraulic structures are founded on permeable foundation. There is, however, no procedure to fix the basic barrage parameters, which are depth of sheet piles/cutoffs and the length and thickness of floor, in a cost-effective manner. Changes in hydrological and climatic factors may alter the design seepage head of the hydraulic structures. The variation in seepage head affects the do...
متن کاملA Numerical Study for the Simplification of Large Scenarios of Seepage under Dams
The seepage flow under concrete dams, besides its dependence on soil permeability and the different total head upstream and downstream, is strongly determined by the geometry of the scenario. However, there are limits in the length and depth of the ground for which the quantity of seepage converges to a maximum value. These limits values, which are not independent, separate two types of scenari...
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ژورنال
عنوان ژورنال: Geoenvironmental Disasters
سال: 2016
ISSN: 2197-8670
DOI: 10.1186/s40677-016-0043-z