Construction method and structure of balance weight retaining wall

Abstract

The invention discloses a construction method and structure of a balance weight retaining wall. The construction method of the balance weight retaining wall comprises the following construction stepsthat measuring and positioning are carried out; a foundation pit is excavated; a foundation bearing capacity test is carried out; a foundation is constructed; a lower wall is constructed; an upper wall is constructed; balance weight platform formwork is erected; balance weight platform concrete is poured; a roadbed is backfilled; and mortar flag stone is adopted to construct the lower wall, required pre-buried connecting rebars are arranged when the lower wall is constructed, and the sides, close to the balance weight platform, of the rebars extend into the balance weight platform. According to the construction method and the structure of the balance weight retaining wall, the reliability of the connection of the balance weight platform and the retaining wall is greatly improved, and quality accidents such as overall overturn of the retaining wall are avoided; the construction difficulty is reduced, the flatness degree of the appearance of the retaining wall is ensured, and the aesthetic degree is improved; meanwhile, the discard amount is reduced, no additional land acquisition is needed for constructing a waste slag field, and the construction cost is reduced; environment-friendly highway construction is facilitated, and high economic and social benefits are achieved; and the structure is simple, the construction is convenient, safety and reliability are realized, economic and environmental benefits are remarkable, and the construction method and the structure of the balance weight retaining wall can be widely popularized and applied in the technical field of retaining walls.

Description

technical field [0001] The invention relates to a construction method and structure of a counterweight type retaining wall, belonging to the technical field of highway construction. Background technique [0002] In highway engineering construction, retaining wall is a relatively common subgrade structure. According to the classification of structure, the retaining wall has various forms such as counterweight retaining wall, inclined retaining wall, cantilever retaining wall, and anchor retaining wall, among which counterweight retaining wall is widely used. The counterweight retaining wall is provided with a cantilevered counterweight platform between the back of the upper wall and the back of the lower wall. The balance weight retaining wall uses the gravity of the filling soil on the top of the cantilever balance platform to move the center of gravity of the wall backward to resist the lateral pressure of the soil, so as to ensure the stability of the retaining wall again...

AI Technical Summary

Problems solved by technology

[0003] The counterweight platform of the masonry rubble counterweight retaining wall is formed by gradually overhanging the masonry rubble. The construction is difficult and the construction reliability is low. The connection reliability between the counterweight platform and the wall Poor, especially when the wall is higher and the counterweight platform is wider, the vertical earth pressure on the upper part of the counterweight platform cannot be completely reliably transmitted to the wall, and the retaining wall will crack and move sideways during the road operation , overturning and other diseases, at the same time, it will cause subgrade settlement and cracking

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