• Geotechnical Drilling and Sampling

     DRILLING

DRILLING AND SAMPLING CAPABILITIES

  • Geotechnical and environmental drilling and sampling
  • Hollow-stem augers: 2-1/4-inch to 12-1/4-inch inside diameter
  • Solid-stem augers: 4- and 6-inch diameter
  • Air rotary drilling using air hammer and tricone methods (4″, 6″ and 8″ diameter)
  • Mud rotary drilling
  • Direct-push sampling
  • Pavement coring up to 18-inch diameter
  • 2- and 3-inch diameter Shelby tube samples (12- to 30-inch lengths)
  • 2- and 3-inch diameter split-barrel samplers (steel and stainless steel)
  • Continuous tube sampling (5-foot lengths)
  • Packer testing of bedrock core holes for permeability
  • Slug testing of wells for permeability
  • Installation of monitoring wells, piezometers, gas probes, leachate wells, recovery wells, and lysimeters using PVC or steel materials, 3/4-inch to 10-inch diameter
  • Geotechnical instrumentation installation (including inclinometers, borros anchors and vibrating wire plezometers)
  • Pressuremeter testing of soil and bedrock
  • Bedrock coring using double or triple tube core barrels (NQ and HQ sizes)

SES_Drilling-detail

OUR EQUIPMENT

  • DRILLING RIGS

  • DRILLING RIGS

  • DRILLING RIGS

  • DRILLING RIGS

  • DRILLING RIGS

CME 550X

Our CME 550X is mounted on a low pressure rubber tire carrier (good for off road drilling). Can angle drill. Set up for wireline bedrock coring, air rotary drilling, mud rotary drilling, and hollow-stem auger drilling. Has a split-tower to allow working in areas with height restrictions. Hydraulic automatic hammer for consistent blow counts.

Diedrich D25

This rig is a skid-mounted unit. Steel casters can be attached to the skids to move the rig inside of buildings. Minimum working height is 12 feet. Used for geotechnical and environmental drilling with hollow-stem augers and mud rotary methods. Soil sampling methods are performed with an automatic safety hammer or a direct-push hammer. Also used for sediment sampling from barges.

Geoprobe 7822 DT

In June 2019, we took delivery of this new dual purpose rig, We use it for both direct-push sampling for environmental sites as well as using hollow-stem augers with an automatic hammer for geotechnical projects. The rig is mounted on rubber tracks for access to off-road sites and can work with headroom of less than 16 feet.

CME 75

Mounted on a tandem axle truck with a certified clean idle engine. Capable of drilling with up to 10-1/4-inch inside diameter hollow-stem augers. Equipped with progressive cavity pump. Used for drilling with hollow-stem augers, mud rotary, and air rotary methods. Includes a wireline for coring of bedrock and an automatic hammer for split-barrel sampling. Equipped with the split-tower option.

Geoprobe 3100 GT

Added to our fleet in 2022, this dual-purpose rig is utilized in both environmental and geotechnical sampling projects. The rig is mounted on a 4×4 truck chassis for on-road and off-road access. It features a percussion hammer for direct push soil sampling for environmental projects an automatic hammer for standard penetration testing (SPT) for geotechnical projects. The rig is rated for 6,800 ft-lbs of torque and is set up to complete auger drilling, mud rotary drilling, bedrock coring, pavement coring, and direct-push sampling.

CME 850XR

On 33-inch wide rubber tracks for off-road access, with low center of gravity and low ground bearing pressure. Used for wireline bedrock coring, air rotary drilling, mud rotary drilling, and hollow-stem auger drilling. Will drill with up to 10-1/4-inch inside diameter hollow-stem augers. With 15,100 foot-pounds of torque, quick-disconnect mast for working in low-clearance areas, and angle drilling capabilities. Includes 140-pound automatic hammer and 3L8 Moyno water pump.

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