Humboldt Pocket Penetrometer for Soil (Tire Gauge Design)

Humboldt Pocket Penetrometer — Fast, Reliable Soil Strength Testing in the Field

Uses

• Verify soil visual classification

• Determine if excavation side walls need shoring based on OSHA cohesive soils classifications

• Inspect footings and undercuts

• Determine soil bearing capacity and density

• Estimate unconfined compressive strength of cohesive soils

• Also consider the effects of vibration on soil stability, some soils become unsuitable for excavation if vibrated and can compromise the integrity of the excavation site.

The benefits:

• Quick and unconfined strength estimates

• Reduced risk of collapse and increased safety

• Increased efficiency and productivity in geotechnical and construction projects

• OSHA and ASTM compliance

• High quality construction

Introduction

The pocket penetrometer is a handheld device to measure the penetration resistance of soil, a quick and easy way for field personnel to classify soils. This device measures the unconfined compressive strength of cohesive soils, important in construction, geotechnical engineering and environmental monitoring. With a range of 0 to 4.5 tons per square foot (sq ft), the pocket penetrometer is a must have tool for professionals in the field.

Features

The pocket penetrometer has a direct scale, users can easily determine the penetration resistance of soil in tons per sq ft. This lightweight, spring operated device is designed for ease of use, perfect for field use. High quality construction for reliable and accuracy, belt-loop style carrying case and operating instructions included, extra carrying case and calibration certificate available separately.

Uses

The pocket penetrometer has many uses, soil classification, foundation and excavation safety. It is used to determine the unconfined compressive strength of cohesive soils, important for foundations, retaining walls and other geotechnical structures. The device is also used to determine if shoring is needed in excavations, to ensure a safe working environment for construction personnel. In the lab, the pocket penetrometer is used to verify field results and apply the principles of soil mechanics to various engineering problems. Also used to monitor soil strength over time, so users can refresh their knowledge of soil conditions and make informed decisions.

Calibration and Maintenance

To get accuracy, the pocket penetrometer needs to be calibrated and maintained. Calibration should be done according to the manufacturer’s instructions, with a certified calibration standard. This involves verifying the scale and making sure the device is working properly. Regular cleaning and inspection is also important to prevent damage and get reliable results. Follow the manufacturer’s maintenance and repair instructions and refer to the user manual if you have any questions or concerns. Note that while the pocket penetrometer is a great tool for quick field checks, it should not replace laboratory testing or extensive field testing. It should be used to supplement these methods and get a quick and accurate reading of soil strength.