Supporting and bar-arranging structure for arch bridge raking pile hole forming construction

Abstract

The invention discloses a support and reinforcement structure for arch bridge raking pile hole forming construction. The support and reinforcement structure comprises a plurality of support frames, a plurality of first longitudinal connecting ribs, a plurality of second longitudinal connecting ribs, a plurality of third longitudinal connecting ribs and a plurality of fourth longitudinal connecting ribs, wherein the support frames are supported in a raking pile hole, and the first longitudinal connecting ribs, the second longitudinal connecting ribs, the third longitudinal connecting ribs and the fourth longitudinal connecting ribs are laid along the excavation contour line of the raking pile hole; the support frames are laid on the length direction of the raking pile hole from front to back, are laid in parallel and are perpendicular to the raking pile hole, and the distance between every two adjacent support frames is 50-100cm; each support frame comprises an arc-shaped support and two side supports, the two side supports are respectively a left side support and a right side support symmetrically supported under the left side and the right side of the arc-shaped support. The support and bar-arranging structure has the advantages of being simple in structure, reasonable in design, convenient to construct and good in using effect. The excavated raking pile hole is effectively supported, and the ribs are arranged in the raking pile hole, so that the hole forming quality of the raking pile hole can be effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of bridge foundation engineering construction, and in particular relates to a support and reinforcement structure for the hole-forming construction of inclined piles of an arch bridge. Background technique [0002] The arch bridge is a very old traditional bridge type, but because its foundation needs to bear a large horizontal thrust, it is generally only used when the foundation condition is good and the foundation can be expanded, which greatly limits the application range of the arch bridge . Therefore, setting up pile foundations that can provide thrust in the horizontal direction, such as inclined piles, can greatly expand the application range of arch bridges. Slanted piles are seldom used in actual projects, the main reason being that the hole-forming process and construction are cumbersome. For inclined piles, when the angle between the traditional pile foundation construction and the horizontal l...

AI Technical Summary

Problems solved by technology

Inclined piles are rarely used in actual projects, the main reason is that the hole-forming process and construction are cumbersome

For inclined piles, when the angle between the traditional pile foundation construction and the horizontal line is small, especially close to parallel, the commonly used method of using mud wall to prevent hole collapse is no longer feasible, and the mud pressure at the upper end of the hole wall that is easy to collapse Small, close to the exit position can not provide sufficient retaining wall pressure, and the pile foundation close to the level can not provide sufficient retaining wall pressure

Images