Foundation structure of forward slope retaining wall

Abstract

The utility model provides a forward slope retaining wall foundation structure, which belongs to the technical field of forward slope protection and comprises a forward slope retaining wall used for being connected to a slope with a step-shaped foundation excavated. The forward slope retaining wall comprises a plurality of concrete pouring step bodies which are arranged in the direction from the slope toe to the slope top and are sequentially connected in a step shape, and a concrete pouring body connected to the upper portions of the multiple concrete pouring step bodies. The elevation angles of the bottom faces of the concrete pouring step bodies are all larger than or equal to 0 degree, and the dip angles of the concrete pouring step bodies are all larger than the slope angle of the side slope and larger than the dip angle of the rock stratum. And the upper end of each concrete pouring step body is higher than the original surface topographic line of the side slope. According to the utility model, the forward slope retaining wall comprising a plurality of concrete pouring step body foundations which are connected in a step shape is arranged, so that the concrete pouring step bodies are formed on the step-shaped foundations of the side slope in sequence by pouring in the process that the step-shaped foundations of the side slope are excavated in sequence from the toe of the side slope to the top of the side slope; and finally, a forward slope retaining wall foundation structure is formed, the free face formed by excavating the cut foot in the forward slope retaining wall construction process can be effectively reduced, and the risk of deformation and instability of the forward slope cut foot in the retaining wall foundation construction process is greatly reduced.

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