Continuous in-situ subsurface data

Cone Penetration Testing (CPT) in Florida

Rapid, repeatable soil characterization for geotechnical and environmental investigations—delivering continuous measurements that complement borings, laboratory testing and other site information.

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Service overview

What does cone penetration testing measure?

Cone penetration testing measures cone-tip resistance and sleeve friction continuously with depth. Depending on the approved cone configuration, it may also record pore-pressure or seismic response. The profile develops as the cone advances, and Ambient geologists interpret the results and provide the information to the client for evaluation.

Capabilities at a glance

Continuous measurements with depth

Field profile develops as testing progresses

Complements borings; it does not recover samples

Test configuration follows the project objective

In-situ testing as the sounding proceeds

See changes in the soil profile as the cone advances

Cone penetration testing pushes an instrumented cone into the ground at a controlled rate and records measurements continuously with depth. Unlike a laboratory test performed later, this in-situ procedure produces a running profile while the sounding is underway.

Ambient geologists interpret the CPT results and provide the subsurface information to the client for evaluation. Because standard CPT does not recover soil or rock samples, it is often paired with conventional borings, laboratory results and other site information.

Continuous subsurface profiles
Results develop during testing
Minimal soil disturbance
Repeatable measurements
Configuration selected for the approved scope
Complementary boring and sample review

Track-mounted CPT equipment used by Ambient Technologies — **Dedicated CPT capability** Track-mounted testing equipment for geotechnical and environmental investigations.

Related service pages

Connect CPT with the rest of the field program

Explore drilling, sampling and monitoring services commonly coordinated with cone penetration testing.

All Drilling & Field Services

Compare Ambient’s four core drilling, monitoring-well and CPT services in one overview.

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Environmental & Remediation Drilling

Field access, sampling and installation support for environmental investigation and remediation programs.

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Conventional Geotechnical Drilling

Borings, recovered samples and instrumentation that can complement continuous CPT data.

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Monitoring-Well Services

Well installation and lifecycle field support for groundwater and instrumentation programs.

Explore monitoring-well services

Example cone penetration testing data output showing measurements with depth

Project-specific data outputs

Measurements that support engineering interpretation

Depending on the cone configuration and program, CPT data may be used by the project professional to evaluate or estimate parameters such as relative density, undrained shear strength, friction angle, pore pressure, hydraulic conductivity, consolidation behavior and modulus values.

The final interpretation should consider the selected correlations, local geology, complementary boring or laboratory data and the project’s design requirements.

Cone resistance
Sleeve friction
Pore-pressure response, when measured
Seismic response, when measured

CPT program workflow

From test plan to usable field data

Define

Confirm the investigation objective, sounding locations, target depths, cone configuration and requested outputs.

Prepare

Review access, reaction needs, utility clearance and subsurface information, then obtain any site-specific permit required for the work.

Advance

Push the instrumented cone and review the measurements as testing progresses while coordinating field conditions with the project team.

Document

Provide the interpreted results and agreed completion report, and close any applicable project permit.

CPT FAQ

Choosing the right investigation method

What is the difference between CPT and SPT?

CPT records continuous in-situ resistance data while pushing a cone into the ground. SPT is performed in a borehole and provides blow counts and recovered split-spoon samples. Many investigations use both because the methods provide different, complementary information.

Does CPT collect soil samples?

Standard CPT does not recover a soil sample. If physical samples or direct visual classification are required, the project team should include borings or another sampling method in the investigation.

Can CPT be used everywhere?

No. CPT does not collect rock samples, and dense layers, rock, obstructions, shallow refusal, limited access, overhead clearance, utilities or reaction-force needs can affect feasibility and achievable depth. Conventional drilling should be included when rock or physical samples are required.

Who interprets the CPT results?

Ambient geologists interpret the CPT results and provide the subsurface information to the client for evaluation. The client’s responsible professional uses that information for project decisions and any engineering recommendations.

Cone Penetration Testing (CPT) in Florida

What does cone penetration testing measure?

Capabilities at a glance

See changes in the soil profile as the cone advances