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PAVEMENT SUBGRADE MATERIAL INSTALLATION STRUCTURE
PAVEMENT SUBGRADE MATERIAL INSTALLATION STRUCTURE
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机译:路面基层材料的安装结构
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摘要
PURPOSE: To reduce the construction cost and period by a dry construction method. ;CONSTITUTION: A compacted sand layer is constructed on a crushed stone layer which is compacted on a bearing ground. Blocks of paving material A which is divided into an appropriate size are placed over the sand layer. Each block of the material A has a penetrating hole 7 within itself in a horizontal direction in such a way as to correspond to the holes in other blocks, and a locking bolt 8 is inserted to penetrate the holes 7 in the blocks of the material A. Blocks of the material A are bound together by a locknut 9 which has a matching thread with that of the bolt 8.;COPYRIGHT: (C)1994,JPO&Japio
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