SU1307022A1 - Key of expansion joint of hydraulic structure - Google Patents

Abstract

The invention relates to the field of hydraulic engineering and can be used to seal the expansion joints of concrete pressure structures. The purpose of the invention is to increase reliability and reduce cost. The cradle of the expansion joint of a hydraulic structure includes a key body 5, an auxiliary seal in the form of a board 3 impregnated with bitumen, and a seal made of stainless steel sheets 4. The key body is filled from weakly permeable cohesive soil and equipped with a waterproof diaphragm 6 placed in The middle of the key body is perpendicular to the seam plane. With the establishment of the effect of pressurized water on the structure 1 and the expansion joint 2, the soil filling of the key prevents the outflow of the filtration flow. The auxiliary compaction in the form of a board 3 at the initial stage of the work of the key creates an additional barrier by filtration losses of water. 1 il. i (L so o o yu

Description

The invention relates to their construction and engineering, and can be used to seal the expansion joints of concrete pressure structures, in particular for retaining reinforced concrete fencing walls of the GAZ C.

The purpose of the invention is to increase reliability and reduce cost.

The drawing shows the soil key of the expansion joints, general view.

The key of the hydraulic structure includes a deformation joint 2 placed within the concrete structure 1, the key includes an auxiliary seal — board 3, impregnated with bitumen, and a seal of stainless steel sheet 4. The body 5 of the key is filled with a weakly permeable layer of loam or clay and contains inside a floating diaphragm 6 located in the middle of the key body perpendicular to the plane of the seam 2,

The design of the expansion joint seam works as follows.

With the establishment of the acting forces of the pressure water on the structure 1 and the expansion joint 2, the soil filling of the key (key body) prevents the outflow of the filtration flow, while the auxiliary seal

Editor K. Voloshchuk

Compiled by N.Kaveshnikov

Tehred M. Khodanych Proofreader E. Roshko

Order 1604/27 Circulation 607 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

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five

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in the form of a board 3, at the initial stage of operation, the key creates an additional barrier by filtration loss of water. As the structure is deformed and the joints open, stainless steel sheets 4 prevent the soil from leaking out of the key 5 body, and the key filler - loam, clay, which has high plasticity and deformation, fills the cracks formed, heals the key and thereby provides functions anti-filtration device

In turn, the floating (not attached) diaphragm 6 (reinforced concrete, metal, bitumen), flexibly following the deformation of the structure, reliably contributes to the overall antifiltration stability of the key.

Claims (1)

Invention Formula The key of the expansion joint of a hydraulic structure, including the key body and sealing, is required to increase reliability and reduce cost, the key body is out of weakly permeable cohesive ground and equipped with a waterproof diaphragm located in the middle of the body tabs perpendicular to the seam plane.