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Interpretation of terms in architectural engineering survey: subgrade lofting
In the earthwork construction of railway subgrade or highway subgrade, subgrade filling is the main work in the whole subgrade construction; Then the control of subgrade side piles is the most important link in the whole construction. It not only controls the direction of the whole subgrade line, but also controls the excavation amount of the whole subgrade, so the control of the side piles in the subgrade involves the quality and investment of the whole construction.