Concealed rolling water-stop of expansion joint of aqueduct

Abstract

The invention discloses a concealed rolling water-stop of an expansion joint of an aqueduct. A rolling water-stop is arranged at an expansion joint of a groove side wall and the groove bottom of the aqueduct, wherein the rolling water-stop comprises a cross arm arranged on the groove side wall or the outer side surface of the groove bottom and a cast iron steel plate arranged on inner side surface, and the cross arm and the cast iron steel plate both stretch across the expansion joint and are connected through a semicircular head bolt, so that the cross arm and the cast iron steel plate clampthe groove side walls on the two sides of the expansion joint or the groove bottom from the two sides. The two ends of the lower portion of the cast iron steel plate are each provided with two non-slip blocks, a tooth groove is formed by every two non-slip blocks, a rubber strip with a circular cross section is arranged in each tooth groove, and the rubber strips are concealed under the cast ironsteel plate. According to the concealed rolling water-stop of the expansion joint of the aqueduct, a rubber sheet water-stop of a traditional aqueduct is changed into the rubber strip water-stop, andan exposed rubber plate is changed into the concealed rubber strips. The rubber strips are attached to the inner walls of the two ends of the aqueduct in a tiled manner, and rolling frictional water stop of the expansion joint of the aqueduct is achieved under the action of a pressing plate.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a concealed rolling water stop for an aqueduct expansion joint. Background technique [0002] In water conservancy and hydropower projects, an aqueduct is an overhead tank that conveys channel water across rivers, valleys, depressions and roads. It is widely used for irrigation and water transportation, and also for flood discharge and sand discharge. Large aqueducts can also be used for navigation. Aqueducts are mainly built with materials such as masonry, concrete and reinforced concrete. [0003] Reinforced concrete aqueducts, especially the expansion joints of reinforced concrete rectangular double cantilever hoisting aqueducts, have the characteristics of horizontal displacement and vertical displacement. Since the 1960s to the present, the general water-stop method is to use a flat rubber to flatten the inner wall of the two-span joint...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of the traditional aqueduct expansion joint water stop due to the aging and serious damage of the concrete at the end of the aqueduct, the inability to drill holes or the pre-embedded fastener bolts and other reasons. Durable, water-stopping rubber is hidden and not easy to be damaged, and the aqueduct expansion joints for easy management are concealed, rolling and water-stopping

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