Mackintosh Probe PDF

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SECTION A : MACKINTOSH PROBE1 INTRODUCTION1 Aims of mackintosh probe.A thorough soil investigation is required before any construction building, or project begins. It is used to help determine soil properties at a construction site and also help to establish the soil conditions and if it is strong e...

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SECTION A : MACKINTOSH PROBE 1.0

INTRODUCTION 1.1 Aims of mackintosh probe.

A thorough soil investigation is required before any construction building, or project begins. It is used to help determine soil properties at a construction site and also help to establish the soil conditions and if it is strong enough for construction. One of the tools that can be used for research purposes especially for soil investigation is Mackintosh Probe. Mackintosh probe test is carried out to determine the strength of the soil.

A Mackintosh probe is a lightweight portable penetrometer that is designed to be a tool to investigate the soil bearing capacity (Syahril Azim, 2015). The Mackintosh Probe is a lightweight dynamic penetrometer and a considerably faster and cheaper tool than boring, particularly when the depth of exploration is moderate, and the soils being investigated are soft or loose (Fakher et. Al, 2015). Mackintosh Probe is typically utilized in preliminary soil investigation to accumulate the undrained shear strength (directly through correlations) and consistency of the subsoil layering for very soft soils (Sew et. Al, 2000). For that reason, mackintosh probe test is very important to the construction world because it affects the whole construction of the structure. http://utpedia.utp.edu.my/15607/1/1.NAUTICA%20GAUGE%20MACKINTOSH %20PROBE%20report.%20Syahril%20Azim%20b%20Saiful%20Bahri.%2016937.%20FYP %20report.pdf

There is another type of probe that is similar to the mackintosh probe which is the JKR probe. The difference between these two types is the mackintosh probe has 30° cone penetrometer while the JKR probe has 60° cone penetrometer (Hilmi awaludin, 2012). The apparatus for the Mackintosh Probe consists of the rods which may be threaded along with rod coupling and a hammer at their top. The rods are a high yield steel rod, each of length is about 120cm and it is connected to others by 25mm outer diameter couplings. The cone’s diameter is 27.94mm and a 30° (apex angle). Plus, with 12.7 mm diameter solid rods and a 4.5kg hammer weight dropping through a standard drop height of 300mm. Tools are often pushed into or pulled out of the soil employing a lifting/driving tool. Due to the hammer weight the Mackintosh probe is restricted within the depths and materials it can penetrate (Clayton C.R.I., Matthews M.C. and Simons N.E., 1995). https://www.slideshare.net/HilmiAwaludin/jkr-probe-test https://theconstructor.org/geotechnical/mackintosh-probe-test/3801/

There are few advantages of the mackintosh probe which are the speed of operation will be faster and also the equipment is very low cost which can avoid wastage cost. The mackintosh probe also light and easy to use which does not need a skilled worker to do this test. But it is also a monotonous tool to be used, especially when the depth of exploration is moderate and below ground is soft or loose investigation. In an exceedingly attribute perspective, the user tends to form errors along with the method of the investigation such as wrong counting, non-consistent drop height because it depends on human strength limitation. Lastly, it provides a disturbed soil sample for moisture content determination (Fakher et al., 2005). There are many advantages of mackintosh probe, but the aim of this study is to determine the purpose and importance of the mackintosh probe test and to investigate the soil properties of the site construction before any construction building begins. Also, mackintosh probe used to help determine the sub-surface stratigraphy and identify materials present.

http://utpedia.utp.edu.my/15607/1/1.NAUTICA%20GAUGE%20MACKINTOSH %20PROBE%20report.%20Syahril%20Azim%20b%20Saiful%20Bahri.%2016937.%20FYP %20report.pdf . sama link ngan atas

1.2

Objective of Mackintosh Probe   

To determine the purpose and importance of the mackintosh probe test. To investigate the soil properties of the site construction. To determine the sub-surface stratigraphy and identify materials present....