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Artificial slopes side massif of loose rocks, but are agglutinated by clayey materials, which can be fallen down very easily, while be obliged working in pasty state were soaked by water a long time. In order to expel cause of misfortunes by gravity water may create for these slopes, for retaining unshakeable stability of them, with high effects on economy, technique, safety and relationship with environment; the best way is combining a compatible vegetational cover with a system of flexible, reinforcing compositions, which are taking on not only load bearing a long time, but also effective drainage.

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