A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction of impervious membrane elements for dams and cofferdams
Conclusions The diversity of the specific construction conditions of impervious membrane elements raises many problems which call for additional investigation. Special attention should be focused on the creation of simpler systems, the improvement of their reliability, and the justification of the durability of the membrane materials.The required simplicity, technical advantages, and reliability of membrane system should be obtained, in particular, through the use of gravel soils in the protective and underlying layers, mechanized placing of these soils, use of other methods than fusion for joining the membranes at the construction site, and imparting convexity into the membrane cover at the places of contact with the banks and the concrete structure as well as over the entire cover area.When the soil is placed by mechanical means, the thickness of the protective layer for a facing on gravelsand or pebbly soil should not be less than 1.0 m and the size of the particles in the underlying layer should be 20–40 mm.A facing made from polymer sheets placed with 0.5–1-moverlaps is equivalent to a clay or loam facing, from the permeability standpoint.
Construction of impervious membrane elements for dams and cofferdams
Conclusions The diversity of the specific construction conditions of impervious membrane elements raises many problems which call for additional investigation. Special attention should be focused on the creation of simpler systems, the improvement of their reliability, and the justification of the durability of the membrane materials.The required simplicity, technical advantages, and reliability of membrane system should be obtained, in particular, through the use of gravel soils in the protective and underlying layers, mechanized placing of these soils, use of other methods than fusion for joining the membranes at the construction site, and imparting convexity into the membrane cover at the places of contact with the banks and the concrete structure as well as over the entire cover area.When the soil is placed by mechanical means, the thickness of the protective layer for a facing on gravelsand or pebbly soil should not be less than 1.0 m and the size of the particles in the underlying layer should be 20–40 mm.A facing made from polymer sheets placed with 0.5–1-moverlaps is equivalent to a clay or loam facing, from the permeability standpoint.
Construction of impervious membrane elements for dams and cofferdams
Glebov, V. D. (author) / Lysenko, V. P. (author)
1973
Article (Journal)
English
BKL:
56.30
Wasserbau
Local classification TIB:
770/6550/8000
Construction of impervious membrane elements for dams and cofferdams
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