SU1416600A1 - Dam of local materials - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering. The purpose of the invention is to reduce labor costs. local material requirements and construction costs. The dam includes a screen 1, a drainage layer 3 beneath it, connected to the lower pool by a horizontal section 4, laid in the base of the dam by a layer of permeable soil. She is. It also includes a stop prism 2 and a waterproof element 6 placed on its upper slope under the drainage layer 3, as well as a protective covering of the upper slope 7 and a drainage ditch 5. To protect the lower ridge and dam body from precipitation and from other destructive factors on the ridge and lower slope of the dam can be arranged screen 8 and mount 9. 1 Il. about S. (L

Description

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The invention relates to hydraulic structures, namely to dams of soil materials with an impervious element in the form of a screen.

The purpose of the invention is to reduce labor costs, requirements for local materials and construction costs.

The drawing shows the design of the proposed dam.

The dam includes a screen 1, an abutment prism 2 and a drainage layer 3 between them, connected by a horizontal section A connected to the downstream, it also includes an outlet ditch;. 5, placed on the side of the downstream, and placed on the .e-upper slope under the drainage layer; element 6, as well as fastening of the vertical I slope 7.

In order to protect the ridge, bottom slope and dam body from atmospheric conditions, precipitation and other destructive factors can form a screen 8 and a mount 9 on the ridge and the lower one from the dam spit.

In order to drain filtering water, protect the soil laid in the thrust prism and reduce the thickness of the permeable layer at its base, drainage 10 (trenches filled with coarse-grained material) connected to the suction channel 5 can be reduced.

j The surface of the permeable layer in the basement of the research institute of the dam should exceed the water level in the downstream and the possible height of its capillary lift. The coupling of the permeable layer to the base of the dam may be accomplished with a transition layer.

The thrust prism 2 is poured with a layer-by-layer mechanical seal or thick layers without mechanical compaction from clay, sandy, coarse, artificial and rocky (including weathered) soils, as well as from their natural mixture. The thrust prism without fur is filled with a brush

 2

on the draft, ahead of work on the screen, drainage and waterproof element, so that the latter were erected after the sediment laid in the thrust prism of the soil is basically completed.

Screen 1 and waterproof element 6 are erected from the same or from

different materials: clay soils or non-ground materials (plastic film, concrete, asphalt, etc.). The waterproof element of non-ground materials can be raised in the preparation of their tailings, small stones, clay or sandy soil.

The waterproof element 6 must reach the surface located in

Based on the resistant prism of the layer of waterproof, permeable soil and can be recessed into this layer. Drainage and a permeable layer laid at the base of the stop prism.

soil provides free (free-flow) skip filtering water in the downstream For their devices use sand, tails, rubble, gravel or stone. To ensure

the filtration strength of the soil at the point of contact with the drainage, the latter should be single-layered or consist of a return filter and a drainage collector filled with a coarser material.

formula of invention

A dam made of local materials, including a screen, a thrust prism and a drainage layer between them, connected by a horizontal section along the bottom of the dam with a lower bay, characterized in that, in order to reduce labor costs, requirements for local materials and construction costs, on the upper slope of the thrust prism under the drainage layer is placed impermeable element, the base of which reaches the surface or partially recessed in the horizontal section of the drainage layer,

VNIIPI Order 4039/27 Circulation 637

Random polygons pr-tie, Uzhgorod, st. Project, 4

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Claims (1)

Claim A dam made of local materials, including a screen, a thrust prism and a drainage layer between them, connected by a horizontal section along the sole of the dam with a lower head, characterized in that, in order to reduce labor costs, requirements for local materials and construction costs, on the uphill slope of the thrust prism a waterproof element is placed under the drainage layer, the base of which reaches the surface or is partially buried in a horizontal section of the drainage layer. VNIKLI Order 4039/27 Circulation 637 ________ Signed Custom polygr. ave, city of Uzhhorod, st. Project, 4