The following two gradation curves are for two types of soils. Classify the two soils according to AASHTO and Modified Systems Q-3Estimate the ratio of the horizontal to the vertical permeability of these four strata.H1 = 3'k, = 10³ cm/seck2 = 2x10* cm/secH2= 3'%3Dk3 = 10° cm/secH3 = 3'k4= 2x10* cm/secH4 = 3'

As per the guidelines, I am answering the first question: Consider the following figure:

Answered: Q-3 Estimate the ratio of the…

Q-3 Estimate the ratio of the horizontal to the vertical permeability of these four strata. H1 = 3' k, = 10³ cm/sec k2 = 2x10* cm/sec H2= 3' %3D k3 = 10° cm/sec H3 = 3' k4= 2x10* cm/sec H4 = 3'

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter11: Ground Improvement

Section: Chapter Questions

Problem 11.9P

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Concept explainers

Soil classification and characteristics

Soil classification is a method of categorizing soil based on its properties, types, and uses. The motive of soil classification is to arrange various types of soils and divide them into groups for various engineering and agricultural purposes. Soil classification is carried out by various agencies as per their purposes. From an engineering perspective, soil classification is done to find out the suitability of soil for various construction purposes like the construction of dams, foundations, highways, infrastructures, and so on. For engineering purposes, the soil is classified by the following systems:

Question

The following two gradation curves are for two types of soils. Classify the two soils according to AASHTO and Modified Systems

Q-3
Estimate the ratio of the horizontal to the vertical permeability of these four strata.
H1 = 3'
k, = 10³ cm/sec
k2 = 2x10* cm/sec
H2= 3'
%3D
k3 = 10° cm/sec
H3 = 3'
k4= 2x10* cm/sec
H4 = 3'

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