초록 ▼

A system for inserting elongate members into and removing elongate members from the ground. The system is a bottom drive system that is capable of applying crowding or extraction forces to the elongate member while at the same time vibrating the elongate member along its axis. A vibratory assembly i

A system for inserting elongate members into and removing elongate members from the ground. The system is a bottom drive system that is capable of applying crowding or extraction forces to the elongate member while at the same time vibrating the elongate member along its axis. A vibratory assembly is mounted by a shock absorbing assembly to a support base. A gear or other type of drive assembly is mounted on the vibratory assembly. Vibratory forces generated by the vibratory assembly are applied to the elongate member through the drive assembly, causing the drive assembly to vibrate with the elongate member. The elongate member extends through the center of the vibratory assembly such that the vibratory forces have a vibratory axis that is aligned with the lengthwise axis of the elongate member to prevent torsional or twisting forces from being applied to the elongate member.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for inserting elongate members into the ground, comprising:support means for maintaining the elongate member in a desired orientation with respect to the ground;vibratory means for generating a vibratory force;shock absorbing means for mounting the vibratory

[ What is claimed is:] [1.] An apparatus for inserting elongate members into the ground, comprising:support means for maintaining the elongate member in a desired orientation with respect to the ground;vibratory means for generating a vibratory force;shock absorbing means for mounting the vibratory means onto the support means to reduce the transmission of vibratory forces from the vibratory means to the support means;drive means mounted on the vibratory means for engaging the elongate member such that vibratory loads generated by the vibratory means are transmitted to the elongate member; anddisplacing the elongate member along an axis thereof relative to the vibratory means; whereinthe elongate member comprises first and second drive racks arranged on opposing surfaces thereof; andthe drive means comprises first and second gears, where each of the first and second gears engages one of the first and second drive racks to facilitate driving of the elongate member into the ground.