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How to Locate a Sonde - Underground Utility Locating - Pipe Locating - Video
In a recent training we conducted One student asked a question about locating a sonde and why the "triple" peak happens. They also were curious how those triple peaks look on the reciever. In this video I describe the different geometry of the magnetic field that a aonde creates inatead of the circular field produced on a service line. Also, the sonde has a clear positive and negative magnetic ...
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Leica DS2000 Quick Start Guide - Ground Penetrating Radar - Subsurface Utility Locating and Mapping - Video
The Leica DS2000 is a dual-frequency ground penetrating radar systems is designed for subsurface utility locating and other non-destructive geophysical applications. The 700 MHz and 250 MHz antennas help the user be more efficient and the easy to use software assists new users and allows for easy interpretation, mapping, and reporting. If you use GPR and didn't know how this worked, then you ...
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Using Geonics EM38b Conductivity Meter to Locate & Map Subsurface Pipes & Utilities - ASCE 38-22 - Video
In this video we show some basics of using electromagnetic induction (conductivity) to locate underground pipes and utilities. This tool is easy to deploy and has the possibility of identifying pipes, utilities, USTs, voids, and other subsurface objects. It is an important instrument that everyone conducting subsurface utility locates, geophysical investigations, archaeology and forensics, or ...
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Proceq GP8000 GPR Quick Start Guide - Ground Penetrating Radar - Concrete Scanning - Inspection - Video
The proceq GP8000 is a stepped frequency continuous wave ground penetrating radar for concrete scanning and structural engineering applications. It has a broad bandwidth which allows the user to image small shallow objects and deeper ones. It also has a live wire detector to assist in identifying conduit. If you found the video useful, please like it and subscribe to the ...
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How does Elevation Impact GPR Project Success? - Ground Penetrating Radar - Video
I came on site to conduct some data collection for unmarked graves. I was sent a picture of the site, but it was unclear what the elevation was. The area consisted of significant variation in elevations. As I was walking to the project site I became very nervous! I saw some standing water on the ground and the soil was saturated. I thought to myself, "what if my site is in this nonsense?" There ...
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The Other, Other Benefit of Using GPR In Sand - Ground Penetrating Radar - Video
Often when speaking about using gpr in sand we talk about how large its air filled pores are, which makes it less conductive, and allows the gpr signal strength to last longer. Also, with faster wave speeds, the gpr wave will travel further into the subsurface. But, there is another benefit of using gpr in sand...it leaves tracks. This is a small benefit, but so helpul!!!! While gpr can be very ...
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GPR Survey After Rain? - How Long Should You Wait to Use Ground Penetrating Radar After A Rain? - Video
Here is a question I received from linkedIn: how long should you wait after a rain to conduct gpr survey? Great question, but not a simple answer ..what else is new? Often we look to wait until the soul has desaturated a bit since water generally increases signal decay rates, possibly making it difficult to penetrate to any meaningful depths of investigation. But, there are situations where you ...
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Using GPR In Clay Vs Sand (Or Why I Love Working In Clay!) - Ground Penetrating Radar - Video
In this video I go over some of the benefits and drawbacks to using gpr in clay and sand. It is usually thought that clay is bad and sand is good material to work in, but i debunk this generalization in this video. While you may not agree with my conclusions, i hope the video opens your mind to importance of context when working with ground penetrating radar in any material. Things i compare ...
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How To Be A Better Ground Penetrating Radar (GPR) Professional - Video
Here is your GPR homework assignment... Find an article about GPR that is UNRELATED to your industry! This has tremendous value for you as a practitioner. Even if you work in -utility locating exclusively, -or concrete scanning exclusively, -or archaeology exclusively, -or civil engineering exclusively, reading material from other disciplines helps you learn the skills that you need to compete at ...
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Can GPR Concrete Scanning Determine Rebar Diameter? - Video
Most concrete scanners in the civil engineering and construction industries use GPR to locate reinforcements or conduits embedded in concrete. However, this mapping technique is capable of gathering so much more information about this infrastructure. In this video I review two methods that can be used to evaluate rebar diameter. This is an important application for structural engineering purposes ...
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How to Set Up a Fisher Labs TW-6 Split Box - Single Person Induction Sweep - Utility Locating - Video
In this video we show how to set up and use a Fisher labs. TW6 split box. Will show how to zero out the instrument and test it over a known target. You can adjust the sensitivity after zeroing out the receiver which can be helpful in noisy environments. This is an excellent tool to use when a two-person sweep is impractical.Single person sweeps use the principles of induction where the ...
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How to Write A GPR Report - Ground Penetrating Radar - Video
What are the necessities in a GPR Report? What sections should you have in there? Every GPR report needs 5 sections. More are acceptable, but the following 5 are required! The layout I will share are for one purpose...to show the customer or funding institution that the work was completed in a way that satisfies the scope of work or research questions. The information in the report will be useful ...
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What to do When Surveying On Rocky Ground With GPR - Video
I was recently on a survey in Mexico mapping ancient Maya architecture with ground penetrating radar. The ground was littered with rocks making it difficult to maintain contact between the GPR and the ground. One way to help overcome this issue is by using a survey wheel instead of a cart. The survey wheel allows the surveyor to maintain more control. If you are working in an area with a lot of ...
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IDS Cthrue, a Quick Start Guide - How to Scan Concrete With GPR - Ground Penetrating Radar - Video
In this video we review the basic functions of the IDS Cthrue GPR (ground penetrating radar) system for concrete scanning. We summarize the operating mode, Data acquisition, filtering message, set up menu, and more. Get a quote on rentals or purchases for this and other concrete inspection technologies for construction and structural engineering at ...
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Can Ground Penetrating Radar (GPR) Locate A Pipe Leak? - Part 2 - Video
In this video I discuss the possibility of using ground penetrating radar (GPR) to detect a leak in a water or sewer pipe. The approach I outline here makes use of GPR's ability to view the subsurface in 3D and reflect off of water saturation boundaries. Here in PART 2, I show how to use time-slices (or 3D visualization) to not only identify the leak location, but the direction of the leak plume. ...
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Quick Start Guide on the Leica DSX Ground Penetrating Radar - Utility Locating | GPR - Subsurface - Video
This video is a quick start guide on the Leica DSX ground penetrating radar system. This GPR has a 600 MHz antenna, with easy to use functions for new GPR users. It is primarily built with the utility locator in mind and offers many mapping features, onboard 3D modeling, instant reporting, etc... I hope this video is helpful! If you would like to learn more about what we do, please check us out ...
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Scanning CMU Wall With GPR - Ground Penetrating Radar - Concrete Construction - Video
In this video we review how to scan CMU walls with GPR. We show the difference between an empty cell with a reflection off the air gap and a concrete filled cell reinforced with ...
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