This lab is performed to determine bearing capacity of the soil to with stand the loading. Calibration procedures and instrumental accuracy estimates. Thus, the value of the bearing capacity will be referred to the standard bearing. Jkr mackintosh probe test foundtest drilling sdn bhd. Nov 05, 2012 mackintosh probe which has 30 cone penetrometer while jkr probes has 60 conepenetrometer. Guide the top of the remote scale into the scale guide, while lowering the shaft through the. Device under test dut and the test equipment that will be used. Soil investigation probe mackintosh by aila nas on prezi. The transmitter must be operated in a manner exactly as specified and be properly tuned. The study concludes that the application of the mackintosh probe for site investigation in soft deposits is appropriate and cost effective.
Loading shall be applied in 3 cycles as shown in table 1. Pdf development of mackintosh probe extractor researchgate. Utilized in the standard test method for standard penetration test spt and. Helical probe test soil exploration and compaction testing by the helical probe test hpt has. The excel files containing all raw data and results are backed up once a week using a cd writer or zip drive for storage.
Aug 07, 2007 correlations are developed between mackintosh probe results and those of the standard penetration test spt, as well as, undrained shear strength c u. To what extent results from mackintosh probe test can be used in civil engineering works. One set of mackintosh probe equipment was used to investigate the bearing capacity of the untreated peat soil. Stepbystep procedure the following procedure is used to conduct the test. This is a light dynamic test and the cone is drivendirectly into the soil by driving a hammer 5 kg. Jkr mackintosh probethe mackintosh probe is alightweight and portablepenetrometer. Mackintosh probe which has 30 cone penetrometer while jkr probes has 60 cone penetrometer. A meaningful correlation between shallow seismic refraction. An equation has been derived to relate the mackintosh mvalue with the spt nvalue for cohesive soil. Abstract the use of the mackintosh probe for site investigation in soft soils a. Mar 30, 2011 the mackintosh probe development was based on the principles stated by hvorslev 1948 for drive rods for sounding and sampling and recommended methods for static and dynamic sounding by european group subcommittee 1968.
Ssooiill pprrooppeerrttyy tteessttiinngg llttdd 18 halcyon court, st margarets way, stukeley meadows, huntingdon, cambs. It is a considerablyfaster and cheaper tool than boringequipment especially when thedepth of exploration is moderate andthe soils under investigation are softor loose mackintosh probe which has 30cone penetrometer while jkr probeshas. Figure 3 details of mackintosh probe procedure cc502. Probe machintosh tools hammer soil investigation probe mackintosh marking tools equipment of probe machintosh probe machintosh road 6pcs x 1 meter wrench penetration cone group members. Calibration procedures and instrumental accuracy estimates of.
The probe consists of a cased screwed onto the lower end of the rod. The mackintosh probe development was based on the principles stated by hvorslev 1948 for drive rods for sounding and sampling and recommended methods for static and dynamic sounding by european group subcommittee 1968. Correlations are developed between mackintosh probe results and those of the standard penetration test spt, as well as, undrained shear strength c u. The tool provides a very economical method of determining the. The study concludes that the application of the mackintosh probe for site investigation in soft deposits is. This memorandum documents the new rh calibration procedure and provides a revised estimate of instrumental accuracy for atlas rh mea. Mackintosh probe test is widely used to assess soil bearing capacity mainly on soft ground mvalue. An investigation of attentional bias in test anxiety a. Laboratory procedure manual centers for disease control. The value of bearing capacity and soil conditions for each layer. Mackintosh probe test is most widely used in situ test to measure the soil bearing capacity of different layers in terms of n value.
Mackintosh probe testing, which provides an indication of the density of a granular soil by recording the number of blows of a 10kg hammer falling over 500mm to drive a steel cone 300mm into the soil. Mackintosh probe test a simple and economic testing method, to gather preliminary data on sub surface conditions. The transmitter output power must not exceed the limitations of any test equipment used or the manufacturers specifications for the dut including duty cycle or time. Mackintosh probe locations of mackintosh probe the purpose of mackintosh probe were carried out to get a significant indication of the subsoil in situ strength in residual soil weathering grade this test is more cheaper compared to borehole. If your pdf file is encrypted, the specified test scripts will not function until you decrypt the file. The use of the mackintosh probe for site investigation in. Mackintosh probe prospecting kit sl015 impact test. Request pdf the use of the mackintosh probe for site investigation in soft soils dynamic probing can have an important role in geotechnical site investigation. Such data maybe adequate for the designs of foundations for lightly loaded structures as this provides a very economic method of determining the. An equation has been derived to relate the mackintosh mvalue with the spt n. Verifying calibration of weighing devices used for laboratory testing. Supplies, nl scientific instruments sdn bhd is the leading manufacturer of civil engineering testing equipment for material testing. Such data may be adequate for the designs of foundations for lightly loaded structures, as this provides a very economical method of determining the thickness of soft deposits such as peat.
Longer time interval is required at certain specified loading stages. In this study, we used one set of 15 mm diameter series mackintosh probe with the length of 1. This test is very useful to find out the bearing capacity of soil upto 18 meter. Motorized mackintosh jkr probe nl 5009 x 005 soil testing. However, the objective of all probing is the same, namely to provide a profile of penetration resistance with depth, in order to give an assessment of the variability of insitu materials on site. Nl scientific instruments sdn bhd mackintosh probe apparatus nl 5009 x 001 soil testing equipments. The mackintosh probe test is a simple and economic testing method to gather preliminary data on sub surface conditions. Integration of spt nvalue, mackintosh probe mvalue. Mackintosh probe apparatus nl 5009 x 001 soil testing.
Nl scientific instruments sdn bhd is the leading manufacturer of civil engineering testing equipment for material testing. To plan the best method of construction, including foreseeing and providing against. The mackintosh prospecting tool consists of rods which can be. Mackintosh probe test mpt field density test fdt standard proctor sp cone penetration test cpt california bearing ratio cbr plate bearing test pbt civil material laboratory compressive strength test cst rebound hammer test windsor probe test ultrasonic pulse velocity upv steel bar tensile test aggregate bitumen. The mackintosh prospecting tool consists of rods which can be threaded together with barrel connectors and which are normally fitted with a driving point at their base, and a light handoperated driving hammer at their top. Geotechnical investigations are performed by geotechnical engineers or engineering.
As a result, pmel has developed an automated, computer controlled rh calibration procedure, to improve upon rh sensor calibration e. In this article, we imply that your pdf document is not encrypted. A wide range of dynamic and static penetrometers are available, with different types being used in different conditions of substrata materials. One of the most common types of probing is mackintosh probe. This test method provides a disturbed soil sample for moisture content determination, for identification and. Mackintosh probe which has 30 cone penetrometer while jkr probes has 60 conepenetrometer.
However, the objective of all probing is the same, namely to provide a profile of. Mackintosh probe test to be carried out at load test location center of plate at testing leve l before the test for calibration purpose. Jones2 1geotechnical group, civil engineering department, university of tehran, po box. Mackintosh jkr probe testing equipment products epage. Mackintosh probe as an exploration tool springerlink. However, the objective of all probing is the same, namely to provide a profile of penetration resistance with depth, in order to give an assessment of the variability of insitu materials. Pe29 6dg telephone 01480 455579 fax 01480 453619 email. The great merit of the test and the main reason for its widespread use is that it is simple and. The time interval of each stage of loading should not less than 15 minute. These parameters are used by the uts software for evaluation. Obtain utility clearance prior to conducting any test 2. No published correlation exists for the conversion of mackintosh probe results. A 25 mm diameter and 60 degree cone screwed onto the lower rod was driven into ground by a 4. The sungei buloh site map shows the contour lines, location of the seismic lines.
Telescopic extension rod with probe cable 3m probe cable 3m probe cable 10m profometer test block quick charger external battery complete selfadhesive protective film set of 3 chalk set of 10 profometer touchscreen universal probe with probe cart probe cable 1. The probe is unable to penetrate into medium strength soil and gravelly ground. The study concludes that the application of the mackintosh probe for site investigation in soft deposits is appropriate. Probe mackintosh test geotechnical engineering soil scribd. Calibrating a rainhart 416 hydraulic concrete beam tester. Depth from existing ground level not exceeding 10m. Carry out boring in soil whether cased or uncased rotary boring nw size. Bearing capacity of stabilised tropical peat by deep mixing. Such data maybe adequate for the designs of foundations for lightly loaded structures as this provides a very economic method of determining the thickness of soft deposits such as peat.
A user guide is available to download from the impact web site uk. Discuss the value of bearing capacity and soil conditions for each layer. A number of the mackintosh probe test has been carried out and the result from the points near the bore holes and seismic line are used in this study. The spt test result are also given for all the five boreholes. The aashto standard test procedure reports the percentage of material finer than the no. What are the difference between tender and contract documents. An investigation of attentional bias in test anxiety a thesis. Documentation for data system maintenance is contained in printed copies of data records, as well as.
The mackintosh probe is one of most widespread penetrometers in use in saudi arabia. That is in some cases involves up to 300 parameters and the associated test sequence, including the test steps, affirms christian kron. This is a light dynamic test and the cone is driven directly into the soil by driving a hammer 5 kg. Dec 21, 2016 this lab is performed to determine bearing capacity of the soil to with stand the loading. It is a considerablyfaster and cheaper tool than boringequipment especially when thedepth of exploration is moderate andthe soils under investigation are softor loose mackintosh probe which has 30. Test procedures manual american radio relay league. Standard penetration test spt soil sampling and soil classification insitu field density test field cbr test plate bearing test mackintosh probe test dynamic cone penetration test moisture content test density test specific gravity test permeability test liquid limit test plastic limit test shrinkage test linear shrinkage test sieve analysis.
To determine the bearing capacity of soil layer profile. Mackintosh probe jkr probe the probe set is primarily useful and ideal for initial site investigation work in remote areas. The results obtained from the test can be interpreted in the form of. Probe is discussed and the repeatability of test results is studied. Nl scientific instruments sdn bhd motorized mackintosh jkr probe nl 5009 x 005 soil testing. Plastic limit test set comprises plastic steel rod, stainless steel rod, mixing dish, spatula and moisture tin. John marshall associates unit 4 telephone riverview business park 042 826226 infoejohnmarshaltassociuk forest row east sussex rhu5fs. Pdf dynamic probing is a continuous soil investigation technique, which is one of the. This particular method is used in conjunction with control bore holes which considerable area can. Bearing capacity of stabilised tropical peat by deep. Begin by attaching the remote scale guide if used to the anvil area. Objective of probe mackintosh collecting a disturbed soil sample for.
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