Construction method for slope supporting and reinforcing

Abstract

The invention relates to a construction method for slope supporting and reinforcing. The construction method comprises the steps of excavating a foundation pit, and performing slope arrangement; drilling; manufacturing spiral grouting floral tubes, specifically, taking spiral ribs and the grouting floral tubes, forming a plurality of grout outlets in the grouting floral tubes, inserting the grouting floral tubes into the spiral ribs, enabling the grouting floral tubes and the spiral ribs to be connected and fixed through inner and outer cross ribs, and enabling the outer cross ribs to extend out of the spiral ribs; driving the spiral grouting floral tubes into the drilled holes, anchoring the bottom ends of the spiral grouting floral tubes into a soil layer at the bottom of the holes, andenabling the outer cross ribs to be located outside the drilled holes; grouting the spiral grouting floral tubes in two times; spraying concrete to the slope surface, paving a reinforcing mesh on theslope surface before final setting of the concrete, and enabling the reinforcing mesh to be fixedly connected with outer cross ribs; and spraying the concrete onto the slope concrete paved with the reinforcing mesh for the second time. The spiral ribs are combined with the grouting floral tubes, the spiral grouting floral tubes, the concrete spraying layer and the side slope form a combined actionsystem through grouting, secondary spraying and anchoring and the like, and loosening and separation of the soft soil side slope are prevented.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for slope support and reinforcement for improving the mechanical properties of soft soil slopes. Background technique [0002] Soft soil has the characteristics of high water content, high compressibility, low water permeability, low mechanical strength, small critical height, and poor stability. As an unfavorable geological body, it has a special failure mode. When the slope height reaches a certain limit, the lateral pressure of the soft soil will inevitably exceed the shear strength of the retaining structure, resulting in overall landslides. As an important form of geotechnical reinforcement, bolt support is more and more recognized due to its advantages of safety, high efficiency, and low cost, and has been increasingly recognized in the field of international geotechnical engineering. Many applications. However, bolt support also has it...

AI Technical Summary

Problems solved by technology

However, bolt support also has its limitations, mainly due to the fact that it is greatly affected by the properties of the soil. When the soil layer is weak, it cannot provide effective pull-out resistance.

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