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Home » Soil Resistivity

Soil Resistivity

08/02/2023 By Ian Leave a Comment

Soil Resistivity Testing – Common Mistakes

Ian getting ready

We take a look at soil resistivity and provide practical advice on what is ground soil resistivity, why we measure it and these common mistakes when Soil Resistivity Testing:

  1. Surface Layer Resolution
  2. Buried Interference
  3. Weak Signal
  4. Background Noise
  5. Erratic Readings
[Read more…] about Soil Resistivity Testing – Common Mistakes

Filed Under: Soil Resistivity

08/02/2023 By Ian

Soil Resistivity Testing Method – The Wenner 4 Probe Test

Soil Resistivity Testing Methods Wenner 4 Probe Test

Soil Resistivity Testing Methods a popular post. Originally published in 2013 and now updated.

A Wenner probe test is a geotechnical investigation method used to determine the electrical resistivity of the soil.

Soil resistivity testing can be carried out using different methods. The Wenner 4 Probe test is one of the most common soil resistivity testing methods. Also, its one of the three most popular soil resistivity methods employed, to perform a soil resistivity test. Therefore, this piece describes how to carry out the Wenner 4 Probe Test Method.

[Read more…] about Soil Resistivity Testing Method – The Wenner 4 Probe Test

Filed Under: Soil Resistivity Tagged With: BS7430, current injection, potential measurement, Soil Resistivity Methods, Soil Resistivity Testing, Soil Resistivity Testing Methods, wenner 4 probe test, Wenner array

08/02/2023 By Ian

Soil Resistivity Testing Method -The Schlumberger Array

Schlumberger Array

The Schlumberger array is a geotechnical investigation method which determines the electrical resistivity of the soil. This is similar to the Wenner probe test, but it uses multiple current electrodes rather than just two. This allows for a more detailed and accurate measurement of soil resistivity.

Soil resistivity testing carried out using different methods, this is another of the three popular approaches to perform soil resistivity testing: 

[Read more…] about Soil Resistivity Testing Method -The Schlumberger Array

Filed Under: Soil Resistivity Testing Tagged With: BS7430, contact resistance, Inverse Schlumberger Array (ISA), maximum loop impedance, reciprocity theorem, Schlumberger Array, Soil Resistivity Methods, Soil Resistivity Testing, Soil Resistivity Testing 10 Common Mistakes, Soil Resistivity Testing Methods

08/02/2023 By Ian

Soil Resistivity Testing Method – Driven Rod

Driven Rod Method

The driven rod test is a geotechnical investigation method which determines the resistance of soil to the penetration of a rod or other penetrometer. 

The Soil resistivity is determined using different Soil Resistivity Testing methods. However the Driven Rod, described below is the last of the three most popular Soil Resistivity Testing methods we use to measure the soil resistivity.

[Read more…] about Soil Resistivity Testing Method – Driven Rod

Filed Under: Soil Resistivity, Soil Resistivity Testing Tagged With: BS7430, Driven Rod Method, Soil Resistivity, Soil Resistivity Methods, Soil Resistivity Testing, Soil Resistivity Testing 10 Common Mistakes, Soil Resistivity Testing Methods, three pin method, three probe method

08/06/2022 By Ian Leave a Comment

Earthing in Difficult Geologies

Earthing in difficult geologies

Ian takes us on a recap of earthing in difficult geologies, you can find the webinar replay here.

Ian: Hello and welcome.

How many times have we faced with the install team, or you are doing tests on site. You come back, and the readings are high, far higher than expected, and you are scratching your head wondering what is going on.

My name is Ian Griffiths, I am the Principal Consultant here at GreyMatters. In today’s webinar, we will take a step back, and we are going to revisit a webinar that was a piece done by Hugh a couple of years ago now, but it has come up is very topical. It is something that we get asked a lot of questions on. So that is the plan for today, let us dive in.

[Read more…] about Earthing in Difficult Geologies

Filed Under: Earthing Designs, Grounding, Soil Resistivity

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