Method for determining rib laying manner of reinforced retaining wall based on sand box model test

Abstract

The invention relates to a method for determining a rib laying manner of a reinforced retaining wall based on a sand box model test. Initial rib laying parameters of a wallplate are calculated out by establishing a sand box model of a simple interface model and through the Rankine earth pressure theory and the mechanism of action of a reinforced retaining wall, thus a wallplate with pull ribs is manufactured; an earth pressure model loading test is carried out, the number of arrangement layers of the pull ribs is gradually reduced, the rib laying parameters are calculated again, the earth pressure model loading test is repeated, and the optimized number of layers of the pull ribs, the horizontal intervals of all the layers and the vertical positions of all the layers are obtained; the length of the pull ribs is gradually reduced, and the earth pressure loading test is repeated until the optimized length of the pull ribs is obtained. According to the method for determining the rib laying manner of the reinforced retaining wall based on the sand box model test, the theory computing method and the earth pressure model test are effectively combined, the optimal pull rib arrangement manner of the reinforced retaining wall can be obtained more simply, more rapidly and more reliably. Thus, the reinforced retaining wall can stably and effectively play a role in supporting, the total number of layers of rib adding is minimal, the length of the pull ribs is the shortest, the consumption amount of rib materials is small and the structure is economic.

Description

technical field [0001] The invention relates to a method for determining the reinforcement pattern of a reinforced earth retaining wall based on a sand box model experiment. Background technique [0002] Reinforced soil retaining wall is a light retaining structure used to support roadbed fill or slope. It is composed of retaining wall panels, reinforcement materials and filling soil. It uses the friction between the reinforcement materials and fillers to improve the deformation conditions of the soil and improve the engineering properties of the soil, so as to stabilize the soil and avoid edge damage. Slope collapse and slippage. Because it has the characteristics of simple construction, strong earthquake resistance, saving land occupation, and low cost. Therefore, reinforced soil retaining walls are widely used in today's roadbed and slope treatment projects. [0003] For the retaining structure of the reinforced earth retaining wall, the arrangement of the tendons (the...

AI Technical Summary

Problems solved by technology

Theoretical calculation methods include limit equilibrium method and finite element method. These two design methods are greatly affected by subjective factors such as parameter selection and constitutive model selection. determined, so that the results obtained are not accurate and reliable

The on-site prototype test is time-consuming, laborious, uneconomical, and inefficient. The vertical and horizontal arrangement spacing of the reinforcement in the reinforced soil retaining wall is also completely based on experience, which further increases the test time and cost.

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