Construction method for transforming cement concrete pavement with embedded reinforced asphalt layer

Abstract

The invention relates to a construction method for transforming cement concrete pavement with an embedded reinforced asphalt layer. A basal grouting is arranged in the horizontal direction under an original embankment. More than one geogrid vertical reinforcements are arranged in the vertical direction and are filled with foam concrete light-weight soil. A plate-bottom grouting is arranged above the geogrid vertical reinforcements and under the original cement concrete pavement. Blocking bodies are arranged respectively at the two ends of the plate-bottom grouting and are fixed onto side walls of the original embankment. A well-type connective trough is arranged in the original cement concrete pavement. A lower pavement layer, a stress absorption layer and an upper pavement layer are arranged in the well-type connective trough and on the original cement concrete pavement from bottom to top successively. A later paved asphalt pavement material and the original cement concrete pavement have an excellent connecting performance so that destroy in each structure layer in the pavement can be effectively prevented. The construction method can solve a problem of post-construction settlement and prolongs a service life of a road.

Description

technical field [0001] The invention relates to a structure and a construction method for controlling subgrade settlement after rebuilding, preventing cracks in the road surface, and coordinating the joint work of the new road surface and the old road bed to convert the cement pavement into an asphalt pavement, and particularly relates to a modified cement concrete with an embedded reinforced asphalt layer Pavement structure and construction methods. Background technique [0002] However, with the continuous growth of my country's economy, the demand for roads has also increased. Since the 1990s, cement pavements have been used due to their long service life, low maintenance costs, and strong resistance to compression, bending and tension. The mechanical properties of wear and other advantages have been widely used, and have alleviated the current reality of excess cement production capacity in my country. However, with the increase in the demand for road comfort, use qualit...

AI Technical Summary

Problems solved by technology

However, the above scheme has the following problems: it cannot prevent the occurrence of reflective cracks on the road surface, the contact force between the new road surface and the old road bed is weak, and it cannot solve the problem of subgrade settlement after reconstruction

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