Integrated anti-sliding pile foundation joist retaining wall and construction method thereof

Abstract

The invention discloses an integrated anti-sliding pile foundation joist retaining wall and a construction method thereof.The integrated anti-sliding pile foundation joist retaining wall comprises a pile foundation, a joist is arranged at the upper end of the pile foundation, a balance weight type retaining wall body is arranged at the upper end of the joist, and a reinforcement cage is arranged in the pile foundation; the pile foundations, the joists and the balance weight type retaining wall body are connected through a reinforcement cage to form an integral structure. According to the integrated anti-sliding pile foundation joist retaining wall and the construction method thereof, the integrated anti-sliding pile foundation joist retaining wall is simple in form and convenient to construct, the overall stability and strength of the integrated anti-sliding pile foundation joist retaining wall are improved, the masonry amount of a retaining structure is reduced in a retaining wall reinforcement mode, and the construction efficiency is improved. The problem of integrated design of the anti-sliding pile foundation joist retaining wall and the problem of connection of a joist and a retaining wall of a conventional pile foundation joist retaining wall are solved, application of pile foundation mechanical characteristics is fully played, material waste is avoided, a calculation model theory of the anti-sliding pile foundation joist retaining wall at the pile foundation position is provided, and better use prospects are brought.

Description

technical field [0001] The invention relates to the technical field of support and protection engineering for roads, buildings, water conservancy, ports and shipping, mines, etc., in particular to an integrated anti-sliding type pile foundation joist retaining wall and a construction method thereof. Background technique [0002] The pile-based joist retaining wall structure has been widely used in road subgrade retaining engineering, especially when the line crosses basic farmland and steep embankments, the pile-based joist retaining wall is often used to close the slope, so as to reduce land acquisition and demolition and improve The overall stability of the embankment slope. [0003] The stress system of the pile foundation joist retaining wall structure mainly includes the type of improving the bearing capacity of the foundation and the type of anti-sliding. Among them, the pile foundation joist retaining wall that improves the bearing capacity of the foundation only con...

AI Technical Summary

Problems solved by technology

Among them, the pile foundation joist retaining wall that improves the bearing capacity of the foundation only considers the problem of insufficient bearing capacity of the retaining wall. The overturning resistance, slip resistance, and section strength of the retaining wall are all guaranteed by the section form of the retaining wall itself. The overall synergistic effect is not considered, which weakens the shear and pull-out effects of the pile; the anti-sliding pile foundation joist retaining wall not only needs to ensure the bearing capacity of the foundation, but also needs to bear the lateral earth pressure, and the top part of the pile is in a cantilever state. Similar to anti-slide piles and pile-slab wall stress mechanism, it is extremely unfavorable to pile structure and pile top displacement

[0004] In view of this, professionals in the industry have carried out a lot of research and discussion work on the above-mentioned problems. The pile foundation structure is usually reinforced with enlarged pile cross-section and double-row pile foundation. Although this structure solves the overall stability problem, individual projects cause collapse. Increased workload, higher cost, higher construction difficulty, and poor operability

The connection between the joist and the retaining wall is usually reinforced by adding short vertical steel bars. This connection plays a certain role in the integrity of the structure, but the two are not a whole. When the force is large, the pile top becomes Larger, it will cause the retaining wall to overturn, slip, and affect its overall stability, which cannot meet people's use requirements. Therefore, we propose an integrated anti-slide type pile foundation joist retaining wall and its construction method

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