Geotechnical Engineering Archives - Civil Engineering Notes

Index Properties of Soil and Its Formation

Vikrant Mane — Tue, 06 Aug 2024 12:08:50 +0000

Physical properties of soil which are useful to identify and differentiate soils from one another are known as 'Index Properties of Soil'.

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Pile Foundation – Types & Driving Methods

Vikrant Mane — Thu, 27 Jan 2022 13:10:08 +0000

A pile foundation is substructure element made up of piles. They are responsible for transmitting structure's gravity loads to subsurface.

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Slope Stability : Analysis & Assumptions, Causes & Factor of Safety

Vikrant Mane — Thu, 24 Jun 2021 07:38:11 +0000

Slope stability is critical factor to consider while designing & building earth dam. Geotechnical Engineer is always concerned about the stability of slope.

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Coefficient of Passive Earth Pressure – Coulombs Theory

Vikrant Mane — Tue, 01 Jun 2021 11:59:17 +0000

This article depicts the process of determining the coefficient of passive earth pressure of cohesionless soil using the coulombs theory.

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Coefficient of Active Earth Pressure & Wall Friction – Coulombs Theory

Vikrant Mane — Fri, 21 May 2021 09:35:28 +0000

Coefficient of Active Earth Pressure for Cohesionless Soil and Negative and Positive Wall Friction by Coulomb's Theory.

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Coulomb’s Wedge Theory & It’s Assumptions

Vikrant Mane — Sun, 16 May 2021 11:14:30 +0000

Coulomb's Wedge Theory considers the soil behind the wall as a whole rather than as a single part.

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Culmann’s Graphical Method

Vikrant Mane — Wed, 12 May 2021 13:01:57 +0000

From Coulomb's theory, Karl Culmann (1866) devised his own Culmann's Graphical Method for calculating earth pressure.

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Skempton’s Pore Pressure Parameters

Vikrant Mane — Fri, 07 May 2021 11:56:12 +0000

Skempton's pore pressure parameters are extremely useful in field problems that require the prediction of pore pressures.

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Sensitivity of Soil (Soil Mechanics)

Vikrant Mane — Mon, 03 May 2021 08:14:06 +0000

Sensitivity of Soil can range from 1 to 100, so it's divided into 7 categories: insensitive, sensitive, medium sensitive, extra sensitive, quick, medium quick and slightly quick.

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Thixotropy of Clay (Soil Mechanics)

Vikrant Mane — Wed, 28 Apr 2021 10:19:13 +0000

Thixotropy of clay is the process of strength loss and gain with no alteration in volume or water content.

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Shear Tests Based on Drainage Conditions

Vikrant Mane — Mon, 26 Apr 2021 09:28:56 +0000

Types of shear tests based on drainage conditions are: Unconsolidated Undrained test, Consolidate Undrained Test & Consolidated Drained Test.

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Unconfined Compression Test【IS 2720(Part 10):1991 PDF】

Vikrant Mane — Thu, 22 Apr 2021 07:06:40 +0000

Unconfined Compression Test is a variant of an undrained unconsolidated triaxial compression test with confining cell pressure equal to atmospheric pressure.

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Triaxial Shear Test for Shear Strength of Soil

Vikrant Mane — Sun, 18 Apr 2021 08:06:57 +0000

The triaxial shear test or triaxial compression test is the laboratory test that better simulates field loading.

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Direct Shear Test for Shear Strength of Soil

Vikrant Mane — Tue, 13 Apr 2021 12:10:22 +0000

The most common method for determining the shear strength of soil is the direct shear test. The detailed procedure is enclosed in article.

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Vane Shear Test [ IS 2720 (Part XXX) – 1980 ]

Vikrant Mane — Wed, 07 Apr 2021 08:28:42 +0000

The vane shear test is carried out in accordance with IS: 2720 (part XXX) - 1980. It is used for determining undrained shear strength of clay.

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Principal Planes (Shear Strenth of Soil)

Vikrant Mane — Tue, 30 Mar 2021 07:47:32 +0000

There are three planes on which the shear stresses are zero at any point in a stressed body, which are mainly mentioned as principal planes.

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Effective Stress Concept in Soil Mechanics

Vikrant Mane — Sat, 27 Mar 2021 07:56:00 +0000

Karl Terzaghi was the first to propose this effective stress concept principle. In soil mechanics, this is a very critical concept.

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Compaction Effect on Soil Properties

Vikrant Mane — Mon, 22 Mar 2021 07:31:21 +0000

The influence of compaction effect on soil properties is highly dependent on the structure achieved by the soil during compaction.

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Soil Compaction : Mechanics & Factors Affecting Compaction

Vikrant Mane — Wed, 17 Mar 2021 08:58:03 +0000

Soil Compaction is a method of stabilizing loose soil by densification, which can be achieved with either static or dynamic load.

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Compaction and Consolidation Differences

Vikrant Mane — Sun, 14 Mar 2021 08:05:39 +0000

In this article we have showcased major points which states the difference between compaction and consolidation process of soils.

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Seepage Pressure & Quick Sand Condition

Vikrant Mane — Mon, 08 Mar 2021 11:47:42 +0000

In this article we have defined the seepage pressure along with its formula and the phenomena of quick sand condition.

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Darcy’s Law & Its Limitations

Vikrant Mane — Thu, 04 Mar 2021 09:27:29 +0000

Darcy's law states that the discharge or rate of flow per unit time is proportional to hydraulic gradient. Limitations of Darcy's Law are :

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Frost Heave : Causes and Prevention

Vikrant Mane — Sun, 28 Feb 2021 11:41:53 +0000

In simple terms frost heave / frost heaving means the contraction and expansion of soil due to freezing and thawing conditions.

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Three Phase System of Soil (Diagram)

Vikrant Mane — Wed, 24 Feb 2021 11:41:30 +0000

Three Phase System of Soil is nothing but the soil mass made up of solid, liquid and gaseous matter. Three phase diagram represents it.

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Soil Structure and Their Types

Vikrant Mane — Fri, 19 Feb 2021 13:02:03 +0000

The soil structure can be defined as the proper geometrical arrangement of particles of soil with respect to each other.

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Residual Soil and Transported Soil

Vikrant Mane — Sat, 13 Feb 2021 07:09:59 +0000

Residual soil and Transported soils are formed by different agencies of nature. The examples of these are listed below.

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Soil Stabilization Methods & Necessity

Vikrant Mane — Sat, 19 Dec 2020 08:15:16 +0000

The properties of soils can be improved by use of admixtures is known as soil stabilization. Stabilized soil may form the sub-grade of road.

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California Bearing Ratio Test【CBR Test】of Soil

Vikrant Mane — Mon, 23 Nov 2020 12:49:04 +0000

The california bearing ratio (CBR) test is defined as ratio of test load to the standard load, expressed as % for penetration of the plunger.

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Caisson Foundation and Types of Caisson

Vikrant Mane — Fri, 22 Nov 2019 04:39:37 +0000

A Caisson Foundation is watertight retaining structure used as bridge pier in construction of concrete dam or ships repair. Caisson Foundation is also known as well foundation.

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Particle Size Distribution of Soil

Vikrant Mane — Fri, 27 Sep 2019 10:46:36 +0000

Particle Size Distribution or the percentage of grains of different sizes in a given soil is an important property of soil.

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Bearing Capacity of Soil and It’s Importance

Vikrant Mane — Mon, 27 May 2019 11:46:43 +0000

Bearing capacity of soil is the strength of the soil to resist the compressive stress coming on it by the foundation of the structure constructed on it.

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Shear Strength of Soil

Vikrant Mane — Wed, 16 Jan 2019 11:56:29 +0000

Concept of shear strength of soil : Different types of tests used to find out the shear strength of soil, factors affecting the shear stength of soil.

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Permeability of Soil- Definition, Properties, Darcy’s Law

Vikrant Mane — Mon, 14 Jan 2019 07:50:44 +0000

Permeability of soil- water strongly affects the engineering properties for most kind of soils and water is an important factor in most geotechnical problem

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Water Content Determination of Soil by Various Methods

Vikrant Mane — Wed, 09 Jan 2019 13:53:24 +0000

Water content determination of soil by various methods such as oven drying method, pycnometer method, sand bath method, alcohol method, etc.

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