EM31 Derived Electrical Resistivity Results - Certification of a Levee With Engineering Geophysics

Mapping

Levees

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Geophysical methods are incredibly important for levee evaluations and upgrades. This type of analysis allows engineers to explore and image soil conditions below the surface, providing a picture of the internal structure of the levee.

Sensors & Software Ultra pulseEKKO GPR

Ground Penetrating Radar or GPR

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Ground Penetrating Radar (GPR) is an essential geophysical instrument used in the assessment of levees. GPR works by using EM pulses to map subsurface structures. This allows engineers and professionals to better understand the construction and potential weaknesses of a levee.

EM31 Derived Electrical Resistivity Results

Cost Effective Geophysics

Mapping spatially large areas

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Electrical Resistivity Imaging (ERI) is an invaluable tool for evaluating the condition of a levee. ERI measures electrical resistivity by sending an electrical current into the subsurface and using electrodes to measure the resulting electric potentials. The data obtained from these measurements provide very detailed information about subsurface materials and stratigraphy.

ERI Generates

High Resolution Detailed Cross-sections

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ERI makes it possible to identify anomalies such as seeps, voids, or geologic features that may damage the levee. In addition, ERI can help engineers understand how different soil layers interact with each other and whether they are in proper order according to safety standards.

Urban development

A levee in a city park

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Levees come in all shapes, sizes, and locations. From the small earthworks used to divert a channel of water around an area to large concrete structures that are part of a complex system of locks, dams and reservoirs,. Levees can be found almost everywhere in the world.

Pure Happiness

Geonics EM31 Terrain Conductivity

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Geonics EM terrain conductivity meters use electromagnetic induction, or EM, to penetrate deep into the soil and reveal information about the structure and components of a levee that would not be visible on the surface.

Along rivers and flood plains

Levees in remote areas

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Some levees are built up along rivers or streams to provide flood protection while others may be engineered barriers that protect specific areas or cities from rising water levels.

Geometrics Geode Seismograph System for MASW

Map sands, gravels, and clays using

MASW for mapping soil stiffness

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MASW seismic methods are a key tool for understanding the construction of levees and their risk of failure. This method uses surface-wave propagation to determine the subsurface characteristics of soil deposits, both near the surface and deeper down in the structure.

Geophysical Services LLC

Home Summary of Geophysical methods contact

Mapping lateral variations in soils using electrical methods assists with characterizing the local geology.

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