FIELD: road building. SUBSTANCE: piles are driven into roadbed through previously placed underlayer so that upper ends of piles project from underlayer by height equal to 1/4 - 3/4 of coating thickness. Use is made of piles with horizontal free lengths of reinforcement bars in upper part of piles, or horizontal bars are connected to side surface of piles extending from underlayer. EFFECT: enhanced quality of pavement. 1 dwg
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Authors
Dates
1995-01-27—Published
1991-04-30—Filed