| 摘要 |
A built-up roadway formed on a cut in a hillside comprises a stack of layers of loose material, each layer being at least partially enveloped by a sheet of geotextile fabric. A vertical wall is disposed facing the exposed side of the stack, and spaced therefrom. The wall serves to shield the geotextile fabric from exposure to ultraviolet radiation without directly bearing the weight of the stack. In a preferred embodiment, a portion of the stack rests on the base of the vertical wall, such that the wall is stabilized by the stack. A method for making this built-up roadway comprises mounting the geotextile fabric on a casing plate that is wedged into the space between the stack and the wall, unrolling the fabric from the casing plate onto underlying loose material forming successive layers, and unwedging and repositioning the casing plate at a higher level to form a vertically superposed subsequent layer.
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