| 摘要 |
<p>A hydraulic roller-compactor comprising a main body (14) in which a piston hole (23) and a guide hole (24) are formed continuously, a piston (30) inserted into the piston hole in such a manner as to reciprocate therein, an upper pressure receiving chamber (31) and a lower pressure receiving chamber (32) formed on upper and lower ends of the piston, respectively, a rolling-compaction member (19) having a rod (35) detachably inserted into the guide hole and a mechanism for moving the rod in such a manner as to follow up the piston.</p> |
