| 摘要 |
<p>The present invention is directed to a pile driver with a lead that is capable of receiving and supporting a pile in a substantially horizontal orientation and subsequently rotating the lead and received pile from the substantially horizontal orientation to a substantially vertical orientation needed before the pile can be driven into the earth. In one embodiment of the pile driver, the chassis is of a relatively short length to be more maneuverable and the lead is capable of supporting a long and/or quite massive pile. To prevent the chassis, lead, and pile from tipping or being placed in an unstable condition, the pile driver further comprises a movable counterweight system. The method is also directed to methods of using such a pile driver to accomplish the driving of a pile.</p> |
