Modified Geomembrane Compositions for Hydraulic Structure Impervious Coatings

2021

DDF

The article examines the operational reliability and technical efficiency assessment of polymer (geomembranes) and geocomposite (bentonite mats) impervious channel coating developed designs. Criteria for impervious channel screen reliability and technical efficiency are proposed based on the domestic and foreign experience generalization in the composite materials use and conducted efficiency studies in terms of water permeability, strength, efficiency, and durability. Two options of developed highly efficient structures for polymer and geocomposite channel linings are presented. The graph of change in screen failure-free operation probability was obtained based on the impervious screen failure-free operation probability calculation results, depending on the survey areas and the failure amount.

“…Volosukhin, M.A. Bandurin [3], and many others [7,8] are the most significant in the hydraulic structure reliability field in our country. The works of Koerner R.M.…”

Section: Relevancementioning

confidence: 99%

Polymer and Geocomposite Impervious Screen Reliability Assessment

Masnyj

Vasilev

2021

DDF

“…The authors of this article examined the use of geosynthetic materials for land-improvement facilities [1,12]: canals, ponds, stockpiles. At the same time, in recent years, considerable attention has been paid to geocomposite materials, in particular, modified geomembrane compositions and geocomposite material with desired properties [13].…”

Section: Relevancementioning

confidence: 99%

New Types of Geo-Composite Materials for Anti-Filtration Systems

Vasilyev

Kosichenko

2021

SSP

The article discusses the results of studies of new types of geocomposite materials used for anti-filtration and drainage purposes in hydraulic engineering and environmental protection construction. As the main elements, the presented geocomposite materials include various types of synthetic materials – bentonite mats and profiled geomembrane. A distinctive feature of these materials is the inclusion of additional elements of geotextile material or polymer geomembrane in their design, these elements are connected to the main element by thermal bonding. As a result, the combined geocomposite materials acquire new properties: they become more waterproof and durable. At the same time, waterproof materials are used for anti-filtration systems (as screens and coverings for canals, ponds, dams and various types of waste collectors), and previous material are used for drainage systems (as drainage in hydraulic and civil engineering). New types of geocomposite materials have improved properties on water resistance and water permeability (filtration coefficient), durability and strength.

“…Drainage materials made of geosynthetic or geocomposite materials are increasingly used In hydrotechnical and civil engineering for drainage in earth dams, dykes, as well as in the basements of buildings and underground parking lots [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Geo-Composite Drainage Material for Hydro-Technical and Civil Engineering

Kosichenko

Vasilyev

2021

SSP

The article deals with the «GP» geo-composite drainage material, which is used in hydro-technical, civil, as well as environmental, industrial and landscape construction. This material is intended for complex application, as a separating, filtering and reinforcing layer in the structures of protective dams on rivers, reservoirs, channels, an earth work of linear transport constructions (automobile and railway facilities) and other hydraulic engineering constructions. It is a combined geo-synthetic material, including a rigid geo-grid of the lattice structure and a filtering geotextile element. As a result of the carried out researches, its basic physical and mechanical characteristics have been established: tensile strength, surface density of geotextile and the material, relative elongation at maximum load, filtration coefficient normal to the material level.