Services

Havy Consulting GPR services Project Management

Project Management and Construction Oversight

The professionals at Havy Consulting are your trusted partner in project management, construction oversight, and representation. Our dedicated team of experts are committed to ensuring the success of your construction projects from inception to completion. With Havy Consulting, you can expect unparalleled professionalism, attention to detail, and a steadfast commitment to your project's goals.

We take the lead in planning, organizing, and managing your construction projects. This includes managing the subcontractors, suppliers, schedule, pay application, change orders, RFIs, final walkthrough and everything in between. From project initiation to closeout, we manage every aspect, ensuring efficient timelines, cost control, and quality assurance.

Our experienced professionals keep a vigilant eye on construction progress. We ensure that every phase of your project adheres to the plans and specifications, guaranteeing the highest quality results.

We can also act as your advocate, representing your interests throughout the project's lifecycle. We engage with contractors, architects, and other stakeholders on your behalf, ensuring your vision is realized and your concerns are addressed.
GPR Mapping diagram

Condition Assessment using Ground Penetrating Radar (GPR)

We employ cutting-edge GPR technology to investigate subsurface conditions, locate reinforcement or conduit or utilities, and assess the quality and condition of concrete, providing you with precise data for informed decision-making.

What is GPR

Ground-penetrating radar (GPR) uses a high-frequency (e.g. 10 to 2600 MHz – microwave range) EM pulse transmitted from a radar antenna to explore the subsurface conditions. The transmitted radar pulses are various subsurface features, and this signal is detected by the radar receiver. The reflecting interfaces may be soil horizons, the groundwater surface, moisture saturation, rock/boulder/soil interfaces, ground defect, manmade objects (embedded steel reinforcement in a concrete structure) or any other interface producing a noticeable contrast in dielectric properties (density, moisture content, etc..). The dielectric properties of materials correlate with many of the mechanical and geologic parameters of materials. The emitted radar signal beam is introduced to the ground by an antenna that is in close proximity to the ground (ground coupled method). The reflected signals can be detected by the transmitting (Tx) antenna or by a second, separate receiving antenna (Rx).

GPR - Shows GPR scan of a concrete column with rebar locations shown as hyperbolas
Figure: Shows GPR scan of a concrete column with rebar locations shown as hyperbolas
GPR - Column Bottom - Shows GPR scan of a concrete column with rebar locations shown as hyperbolas
Figure: Shows GPR scan of a concrete column with rebar locations shown as hyperbolas

The received signals are processed and displayed in real-time on a graphic recorder. As the antenna (or antenna pair) is moved along the surface, the recorder system displays results in a 2D cross-section record or radar-gram of the subsurface conditions. As GPR has short wavelengths in most subsurface conditions materials (due to its high frequency domain), resolution is in direct proportional with the frequency. When higher frequency antennas are used, it provides high resolution but shallower penetration into materials or manmade structures, which makes these frequencies ideal for scanning concrete slabs and other structures. Whereas when GPR antennas are of lower frequencies, they are ideal for detecting larger, deeper targets.

Video: Shows a GPR 3D image of a concrete bridge deck - this is a compilation of slices taken at 0.5” intervals through the depth of the deck

We employ cutting-edge GPR technology to assess the quality and condition of concrete structures, providing you with precise data for informed decision making.

This service can be utilized for any concrete structure in any environment to enable stakeholders to decide the next steps for the structure in question. This can be prior to renovations to determine what part of the structure can be retained or during construction to ascertain the quality of a questionable concrete pour.

Locating and avoiding Rebar and post-tension cables during coring or saw-cutting to ensure safety and maintain the structural integrity of structures. Identifying the reinforcement layout can also aid in structural assessment of older structures when there are no as-built plans to go by.

Identifying the layout of conduits is vital for efficient maintenance and repairs. The objective of these GPR surveys is to map the layout of these near-surface targets. For many condition assessments or concrete scanning surveys, the location of objects such as electrical conduits in the concrete structure is the objective.

Safeguarding your infrastructure by accurately locating utilities and minimizing the risk of damage during construction is of high importance. GPR units with low-mid frequency to locate larger targets (such as sanitary, storm, water lines etc) in earth materials and depths of penetration rarely exceed 30ft in vertical. High conductivity materials such as Clays with a high cation exchange capacity increase the attenuation and decrease penetration.

Maintaining safety at facilities and other assets by early identification of areas with probable subsurface void/cavity is paramount. High to low frequency GPR units are capable of providing data about shallow and deep ground anomalies such as a void, sinkhole or washouts. Results are always provided in 3D in order to obtain essential information about the size. This procedure can be performed inside a warehouse or an office building to check and verify any possible subsurface voids or cavities.

A void survey is highly recommended prior to heavy machinery placement or before any rigging, hoisting is undertaken at a facility. The provided result will show locations where soil quality is different, and inconsistent which will aid stakeholders in selecting the ideal location where a heavy crane can be erected or placed.

Why Choose Us

Our team brings decades of experience and a proven track record in project management, construction oversight, and client representation.

We tailor our services to meet your specific project requirements and objectives.

Our focus on cost control and value engineering maximizes your return on investment.

We maintain transparent and open lines of communication, keeping you informed every step of the way.

We identify potential challenges early and implement strategies to mitigate risks, ensuring smooth project execution.

At Havy Consulting, we understand the complexities of construction projects, and we're dedicated to making your vision a reality. Contact us today to discuss how we can collaborate on your next project and bring it to successful fruition.

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