Percussive driving apparatus for environmental sampling or test device

摘要

A percussive driving apparatus for an environmental sampling or test device. The driving apparatus comprises a percussion stem (10), a weighted percussion plunger (20) having a longitudinal bore through which the percussion stem (10) is received, the percussion plunger (20) being slidable along a length of the percussion stem (10), a lift element (80) to permit lifting of the percussion plunger (20) along at least a portion of said length of the percussion stem (10), and a percussion pad (30) affixed to the percussion stem (10) at or near a first end thereof. The percussion pad (30) is configured to receive percussive driving force from the percussion plunger (20). The percussion tube (10) is also adapted at the first end to connect to a probe (40) (for example a shielded or unshielded piezometer, or a split spoon sampler, a seepage meter, long term data logging monitoring device, or seismic device) for environmental sampling and/or testing.

主权项

1. A percussive driving apparatus for an environmental sampling or test device, the driving apparatus comprising:
a percussion stem defining a central longitudinal cavity; an exit element connected to the percussion stem which defines an exit port through which tubing used in the device can exit said stem; a percussion plunger having a longitudinal bore through which the percussion stem is received, the percussion plunger being slidable along a length of the percussion stem; a lift element to permit lifting of the percussion plunger along at least a portion of said length of the percussion stem; a percussion pad affixed to the percussion stem at or near a first end thereof and configured to receive percussive driving force from the percussion plunger; and an attachment element to connect the apparatus to means for raising and lowering the apparatus when in use; wherein the percussion stem is adapted at the first end to connect to a probe for environmental sampling or testing.