The lower layer subgrade structure in road paving

摘要

(57) Abstract Objective The general pavement roadbed of the roadbed structure which uses the corrugated steel sheetTo application is made possible. Constitution Through sand 2 on roadbed 1, corrugated steel sheet 3 the bedku. To justify sand 7 to the crevice of corrugated steel sheet 3, on that the fiber seato 8 is spread flatly. On fiber sheet 8 graded grain crushed stone 9 bedComing, rolling pressure is added. The case of rolling pressure elastic deformation of corrugated steel sheet 3 grainNot to be transmitted to pitch crushed stone 9, the crack is prevented.