August 13 2018
Terraload consolidation device, consolidometers

Consolidometers Introduction

Consolidometers Choose from DGSI’s selection of consolidometers below. Terraload Pneumatic Consolidation Device Dead Weight Consolidation Load Frame Expansion Index Consolidometer Constant Rate of Strain Consolidometer Fixed Ring Consolidometer Floating Ring Consolidometer More Information on Consolidometer Selection Durham Geo offers both the pneumatic loading consolidometer (S-450 Terraload) and the lever type consolidometer (S-449 dead weight Load Frame). […]

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August 09 2018
low flow sampling and purging

Low Flow Sampling: What’s New and Why?

Low Flow Sampling: What’s New and Why? Printable PDF Version Low Flow Sampling and Purging is a relatively new technique, based upon the use of a submerged pump that can be adjusted to deliver ground water to the surface at rates from less than 100 m per minute to a maximum of 1 per minute. […]

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August 08 2018
F.A.P. Plus Pump

Ground Water Products Introduction

Ground Water Products Durham Geo’s ground water products include active,passive, and solar remediation, submersible pumps, low flow sampling pumps, and ground water purging pumps. Most popular products Printed Catalog Environmental Catalog (PDF, 12.1 MB) Applications Active Remediation Passive Remediation Submersible Pumps Solar Remediation Passive Soil Vapor Extraction Low Flow Sampling Groundwater Purging Pump Accessories Instrumentation Air Compressors […]

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August 08 2018
Tiltmeters

Tiltmeters

Introduction to Tiltmeters EL Tiltmeter EL tiltmeters are high resolution, narrow-angle tiltmeters ideally suited for monitoring structures. Advantages: Accurate, high-resolution measurements, can be read remotely, easily automated, compact, reusable, reasonable cost. Limitations: Some applications require temperature corrections, although careful placement of the tiltmeter can minimize this need. EL Beam Sensor EL beam sensors are similar to EL […]

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August 08 2018
Vibrating Wire Piezometers

VW Piezometers

VW Piezometers VW Piezometers Applications Typical applications for VW piezometers are: Monitoring pore water pressures to determine safe rates of fill or excavation. Monitoring pore water pressures to determine slope stability. Monitoring the effects of dewatering systems used for excavations. Monitoring the effects of ground improvement systems such as vertical drains and sand drains. Monitoring […]

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August 08 2018
Standpipe Piezometer

Piezometer Comparison

     Standpipe  Vibrating Wire  Pneumatic  Titanium Range Depth of standpipe 10,25, 50,100,250,500 psi .07,1.8, 3.5, 7, 17, 35 bar 180 psi 12 bar 20, 50 100, 250, 500 psi 1.35, 1.8, 3.5, 7,17,35 bar Response Time* Slow Fast Fast Fast Reading Time * Minutes Seconds 5 minutes with 200 ft (tubing Very Fast Readout* […]

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August 08 2018
Vibrating Wire Piezometers

Piezometers

Piezometer Applications Piezometers measure pore-water pressure and ground water levels, providing information essential to: Understanding initial site conditions. Determining safe rates for placement of fill Predicting slope stability. Designing for lateral earth pressures. Evaluating the effectiveness of drainage schemes. Checking the performance of containment systems. Types of Piezometers Standpipe Piezometers The standpipe piezometer is the most basic […]

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August 08 2018
Vibrating Wire Piezometers

Piezometer Applications

Piezometers Applications Piezometers measure pore-water pressure and ground water levels. They help engineers to: Understand initial site conditions. Determine safe rates for placement of fill Predict slope stability. Design and build for lateral earth pressures and uplift pressures. Evaluate the effectiveness of drainage schemes. Check the performance of containment systems. Earthfill Dam    Determine safe rates […]

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August 08 2018
classic inclinometer system

Horizontal Inclinometer Probe

Applications Horizontal inclinometers are used to obtain high resolution profiles of settlement or heave. Typical applications include monitoring settlement and heave under storage tanks, embankments, dams, and landfills. Operation The Digitilt horizontal inclinometer system consists of inclinometer casing, a horizontal probe, control cable, pull cable, and a readout unit. The inclinometer casing is installed in […]

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August 08 2018
inclinometer casing function

Inclinometer Casing

Types of Inclinometer Casing Inclinometer casing is a special purpose pipe used in inclinometer installations. It performs three functions: It maintains access for the inclinometer probe, allowing it to obtain subsurface measurements. It controls the orientation of the probe via internal grooves. It conforms to movement of the surrounding ground. When you buy inclinometer casing, […]

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