| 摘要 |
A temporary driveway for new home construction includes one or more removable pre-cast planks. The pre-cast planks are constructed of reinforced pre-cast concrete and are sized to accommodate the passage of vehicles over their surface. The reinforcement is in the form of a row of pre-stressed cables adjacent the top surface and the bottom surface of the plank. Four lift inserts are recessed into the top surface of the plank near each of the corners of the plank to balance the load during lifting. The pre-cast planks are lifted with a standard lifting rig such as a boom crane attached to the lift inserts. The pre-cast planks are transported to a construction site, lifted from the transport vehicle by a standard lifting rig, and placed in a desired location at a new home construction site. Several pre-cast planks are placed end-to-end to form the temporary driveway. When the temporary driveway is no longer needed, the pre-cast planks are lifted and transported away from the construction site.
|
