Hawk Drilling offers a variety of direct push equipment available for soil, groundwater, and vapor samples. We roster truck-mounted as well as track-mounted equipment, which enables us to tackle all types of field conditions and access issues.
Direct push technology offers several benefits. It is less labor intensive, less drill cuttings, and quicker set up time.
Direct push technology includes several types of drill rigs and drilling equipment which advances a drill string by pushing and/or hammering without rotating the drill string. While this does not meet the proper definition of drilling, it does achieve the same result – a borehole. Direct push rigs typically are limited to drilling in unconsolidated soil materials and very soft rock.
Direct push drill rigs use hydraulic cylinders and a hydraulic hammer (with a nitrogen load) to advance a hollow core sampler to gather soil and groundwater samples. The speed and depth of penetration is largely dependent on the soil type, the size of the sampler, and the weight and power the rig. Direct push techniques are generally limited to shallow soil sample recovery in unconsolidated soil materials. The advantage of direct push technology is that in the right soil type it can produce a large number of high quality samples quickly and cheaply, generally from 150 to 300 feet per day. Rather than hammering, direct push can also be combined with sonic (vibratory) methods to increase drill efficiency.
Our direct push capabilities include:
- 4' and 5' Dual Tube Sampling
- 4' and 5' Macro Cores
- Discrete Water (H2O) Sampling
- Temporary Well Points
Several rigs in Hawk's fleet offer the direct push method. Click to learn more details about their capabilities and respective advantages: