Why we Conduct the SPT Test in Soil investigation?

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Why we conduct soil penetration test in soil investigation?

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Answer ( 1 )

  1. It provides information about Geotechnical properties of soil and furnishes data about resistance of the soils to penetration which can be used to evaluate standard strength data, such as N value of the soil.

    N = number of blows per 30 cm of penetration using standard split spoon.

    it is a procedure to obtain undisturbed samples at varying depths so that we can find cohesion, C and angle of internal friction, 𝛟 which are used to find the bearing capacity of soils.

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