geotechnic 2 - site investigation

7/28/2019 GEOTECHNIC 2 - Site Investigation

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Explaination about: In-SituTesting & The Content of the SiteInvestigation Report.

Prepared by: Mohd Farhan Syazwan B in Dzulka

Matr ix No : 16QKA12F2019


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Standard Penetration Test (SPT)

Is an in-situ dynamic penetration test designed to provideinformation on the geotechnical engineering properties of soil.The test uses a thick-walled sample tube, with an outsidediameter of 50 mm and an inside diameter of 35 mm, and alength of around 650 mm. This is driven into the ground at thebottom of a borehole by blows from a slide hammer with a

weight of 63.5 kg (140 lb) falling through a distance of 760 mm(30 in).


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Standard Penetration Test (SPT) :

The main purpose of the test is to provide an indication of the

relative density ofgranulardeposits, suchas sands and gravels from which it is virtually impossible toobtain undisturbed samples. The great merit of the test, and themain reason for its widespread use is that it is simple andinexpensive. The soil strength parameters which can be inferredare approximate, but may give a useful guide in ground

conditions where it may not be possible to obtain boreholesamples of adequate quality like gravels,sands, silts, clay containing sand or gravel and weak rock.
http://en.wikipedia.org/wiki/Granularhttp://en.wikipedia.org/wiki/Sandhttp://en.wikipedia.org/wiki/Gravelhttp://en.wikipedia.org/wiki/Silthttp://en.wikipedia.org/wiki/Clayhttp://en.wikipedia.org/wiki/Clayhttp://en.wikipedia.org/wiki/Silthttp://en.wikipedia.org/wiki/Gravelhttp://en.wikipedia.org/wiki/Sandhttp://en.wikipedia.org/wiki/Granular


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Cone Penetration Test (CPT)

The cone penetration test (CPT) is a method used to

determine the geotechnical engineering properties of soils anddelineating soil stratigraphy. The test method consists of pushingan instrumented cone, with the tip facing down, into the groundat a controlled rate (controlled between 1.5 -2.5 cm/s accepted).The resolution of the CPT in delineating stratigraphic layers isrelated to the size of the cone tip, with typical cone tips having a

cross-sectional area of either 10 or 15 cm, corresponding todiameters of 3.6 and 4.4 cm.


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Plate Bearing Test (PBT)

Plate load test is to find the bearing capacity and the

settlement of the foundation. Description a test plate, square or

circular in shape, are used. The plate is placed at the proposed

level of the foundation and is subjected to incremental loading.

Settlement at each increment of the loading is measured and a

load-settlement curve is plotted. Bearing capacity and the

settlement of the foundation are determined from the load-settlement curves


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Plate Bearing Test (PBT)


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Trial Pit

A trial pit is an excavation of ground in order to study orsample the composition and structure of the subsurface, usually

dug during a site investigation, a soil survey or a geologicalsurvey. Trial pits are dug before the construction. They are dugto determine the geology and the water table of that site. Trialpits are usually between 1 and 4 metres deep, and are dugeither by hand or using a mechanical digger. Building andconstruction regulations clearly state that any trial pits thatconcede deeper than 1.2 metres should be secured againststructural collapse, if they are to be entered by people.
http://en.wikipedia.org/wiki/Structurehttp://en.wikipedia.org/wiki/Site_investigationhttp://en.wikipedia.org/wiki/Soil_surveyhttp://en.wikipedia.org/wiki/Geological_surveyhttp://en.wikipedia.org/wiki/Geological_surveyhttp://en.wikipedia.org/wiki/Geological_surveyhttp://en.wikipedia.org/wiki/Geological_surveyhttp://en.wikipedia.org/wiki/Soil_surveyhttp://en.wikipedia.org/wiki/Site_investigationhttp://en.wikipedia.org/wiki/Structure


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Trial Pit


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A site investigation report is the basis for all subsequent

decisions regarding cleanup of a contaminated site. A

complete and well-organized report allows state

regulators to make better and faster decisions including,

in some cases, case closure. If a case closure requestwill be made at the end of the site investigation.

Organization of Site Investigation Reports:

Site investigation reports should be organized into the

following sections. The Site Investigation ReportContents table and attachments that follow this outline,

provide additional details about the information needed in

each of the following sections:


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Site Investigation Content


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geotechnic 2 - site investigation

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