A method of constructing drainage ditches along the edge of the road by using masonry rubble

Abstract

The invention provides a method for constructing a drainage ditch along the edge of a road by mortar flag stones. The method for constructing the drainage ditch along the edge of the road by the mortar flag stones comprises the steps of excavating a channel, preparing mortar, finishing stone materials, segmenting the channel, constructing a channel body, constructing a channel bottom, and fillingexpansion joints. According to the technical scheme provided by the invention, the boundary dimension and quality of the mortar flag stones are chosen, a construction process is arranged reasonably, the mortar flag stones in different specifications and shapes are arranged at different positions, the body and the bottom of the drainage ditch are of multilayered construction layer structures, the ablation effect of underground water in a soil body can be weakened by consumption of multiple construction layers, construction joints are filled compactly, the accumulation effect of the undergroundwater on the bottom of the drainage ditch is relieved, a heat exchange process of the soil body on the bottom of the drainage ditch is relieved, the probability of frost heaving benefit in the soil body of a roadbed is relieved, stability of a mortar flag stone foundation is ensured, the service life of the drainage ditch is prolonged effectively, moreover, the inner wall and bottom of the drainage ditch are constructed flatly, and the attractive appearance of the drainage ditch is improved.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a method for constructing drainage ditches along the edge of roads by using masonry rubble. Background technique [0002] The construction technology of the mortar-laying ditch refers to the use of hard flakes of stone and mortar as the bonded body to build a ditch for drainage. Due to the extremely unstable geological structure in high-altitude and low-temperature areas, the geothermal stability in these areas is poor. In road engineering, road subgrades are prone to subsidence, deformation, and cracking. Therefore, when constructing road edge drainage ditches, It is very important to ensure the stability of the geological structure in this area. Take Wuchuan County, Zunyi City, Guizhou Province as an example. The sunshine is only 1003 hours, the average annual precipitation is 1280m, and there are no rivers in the territory. The disastrous weather includes late sprin...

AI Technical Summary

Problems solved by technology

The perennial low temperature environment has brought difficulties to the construction of the drainage ditch, especially when the mortared rubble is used for construction, due to the poor geothermal stability, the built drainage ditch is easy to be damaged, and the damage speed is increasing. Therefore, when using masonry rubble to build drainage ditches, it is necessary to arrange the construction process reasonably, select the quality of the masonry rubble, strengthen the overall stability of the subgrade, and improve its bearing capacity and strength, thereby Prevent or delay the infiltration of cold and thaw benefits in the atmospheric environment into the soil, reduce the freezing depth of the subgrade and the frost heaving and thawing settlement, maintain the safe and stable operation of the drainage ditch, and prolong the service life of the drainage ditch

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