Installation device and construction method of prestressed anchor cable casing for gate pier

Abstract

The invention discloses a gate pier prestress anchor cable sleeve installation device and a construction method thereof. The anchor cable sleeve installation device comprises support pipes and embedded steel pipes which are installed at the two ends of a cross beam respectively. The two ends of the cross beam are connected with the upper ends of the support pipes through hinges respectively. The upper ends of the embedded steel pipes are connected with the lower ends of the support pipes through connecting pipes. A plurality of vertical beams are arranged on the cross beam. A plurality of hoops are installed on the vertical beams. The cross beam is connected with the vertical beams through rotary bearings. Upper connecting bodies are provided with positioning bolts, lower connecting bodies are provided with positioning grooves, and the positioning bolts and the positioning grooves are matched. The construction method for an anchor cable pre-embedded pipe includes the steps of positioning the embedded steel pipes, installing the connecting pipes and upper portion structures, adjusting the hoops and the vertical beams to the needed angles and directions and the like. By means of the gate pier prestress anchor cable sleeve installation device and the construction method thereof, the anchor cable pre-embedded pipe can be rapidly, accurately and stably positioned, the rework loss generated during reinforcement of the anchor cable pre-embedded pipe through a scaffold is reduced, the construction quality of the anchor cable pre-embedded pipe is improved, and meanwhile the use number of seamless steel pipes of the scaffold can be reduced.

Description

technical field [0001] The invention relates to a prestressed anchor cable casing installation device for a sluice pier and a construction method thereof, belonging to the technical field of water conservancy and hydropower engineering construction. Background technique [0002] The discharge structure is an important part of a water conservancy and hydropower project, and its main functions are flood discharge, sand discharge, and diversion during construction. Water discharge structures such as overflow dams and spillways generally use surface holes for flood discharge, and arc-shaped steel gates are used to retain water. The scale of flood discharge is generally large, and the size of the flood discharge orifice is large. The force acting on the hinge of the arc door often exceeds the bearing capacity of the reinforced concrete of the gate pier. Therefore, it is necessary to set prestressed anchor cables at the hinge of the gate pier, so that the concrete in the area whe...

AI Technical Summary

Problems solved by technology

like Image 6 As shown, at present, the anchor cable pre-embedded pipe 16 is fixed by manually erecting a scaffold 17. With this construction method, the anchor cable pre-embedded pipe 16 is difficult to locate and is often reworked due to inaccurate positioning.

During the concrete pouring process, the position of the anchor cable pre-embedded pipe 16 often deviates from the design position, resulting in rework or irreparable defects in the structure

At the same time, the used scaffolding 17 for fixing the anchor cable pre-buried pipe 16 will be poured into the concrete, resulting in material waste

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