Soil Mechanics and Foundations PDF By B.C. Punmia, Ashok Kumar Jain, Arun Kumar Jain

Download Soil Mechanics and Foundations PDF By B.C. Punmia, Ashok Kumar Jain, Arun Kumar Jain – Soil Mechanics And Foundations is written particularly for college kids pursuing civil engineering. It gives a complete understanding of soil traits and properties. It even comprises experiments to assist college students acquire a sensible perception into soil mechanics. With all buildings having earth as its widespread basis, its important that college students of civil engineering perceive this predominant part. A protected construction can solely be constructed when there may be thorough information of its basis.

This Soil Mechanics and Foundations guide comprises 34 chapters and covers matters like Clay Mineralogy, Well Hydraulics, Stress Distribution, Compaction, Stability of Slopes, Well, Pile and Machine Foundations, Bulkheads and Cofferdams, Stabilisation of Soils, Permeability, and extra. It explains intimately about Elements of Elasticity, Earth Pressure, Bearing Capacity, and Shear Strength. The guide additionally comprises 21 lab experiments.

Students can study basis engineering and design ideas in Soil Mechanics And Foundations. All theories are defined at size and are additionally supported with examples and experiments. This helps readers study to use a principle whereas engaged on a undertaking.

This guide is meant to current at present accepted theories, design ideas and practices of soil mechanics and basis engineering. The guide gives adequate materials starting from easy to very advanced for undergraduate and postgraduate programs. At the tip of every chapter, newest issues from numerous central aggressive examinations has been solved to allow the scholar to check his studying at completely different phases of his research.

Key Features of Soil Mechanics and Foundations:

• The guide is systematically divided into eight sections for straightforward reference.
• It is a perfect textual content for each undergrad and postgrad college students.

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Soil Mechanics and Foundations By B.C. Punmia, Ashok Kumar Jain, Arun Kumar Jain – PDF Free Download

 Book Contents of Soil Mechanics and Foundations

PART I
ELEMENTARY PROPERTIES
Chapter 1   – Introduction
Chapter 2   – Preliminary Definitions and Relationships
Chapter 3   – Determination of Index Properties
Chapter 4   – Classification of Soils
Chapter 5   – Soil Structure and Clay Mineralogy
PART II
SOIL HYDRAULICS
Chapter 6   – Soil Water : Effective and Neutral Stresses
Chapter 7   – Permeability
Chapter 8   – Well Hydraulics
Chapter 9   – Seepage Analysis
Chapter 10 – Seepage Below Hydraulic Structures
Chapter 11 – Drainage and Dewatering
PART III
ELASTICITY APPLIED TO SOILS
Chapter 12 – Elements of Elasticity*
Chapter 13 – Stress Distribution : I
Chapter 14 – Stress Distribution : II*
PART IV
COMPRESSIBILITY
Chapter 15 – One Dimensional Consolidation
Chapter 16 – Three Dimensional Consolidation*
Chapter 17 – Compaction
PART V
STRENGTH AND STABILITY
Chapter 18 – Shear Strength
Chapter 19 – Failure Envelopes*
Chapter 20 – Earth Pressure
Chapter 21 – Bulkheads and Cofferdams
Chapter 22 – Shafts, Tunnels and Conduits
Chapter 23 – Stability of Slopes
PART VI
FOUNDATION ENGINEERING
Chapter 24 – Bearing Capacity
Chapter 25 – Shallow Foundations
Chapter 26 – Pile Foundations
Chapter 27 – Well Foundations
Chapter 28 – Machine Foundations
PART VII
PAVEMENT DESIGN
Chapter 29 – Design of Flexible Pavement
Chapter 30 – Design of Rigid Pavement
Chapter 31 – Stabilisation of Soils
PART VIII
MISCELLANEOUS TOPICS
Chapter 32 – Site Investigation and Sub-Soil Exploration
Chapter 33 – Advanced Measuring Instruments
Chapter 34 – Reinforced Earth and Geotextiles
REFERENCES
INDEX

 About Author of Soil Mechanics and Foundations

Dr. B.C.Punmia : He is an eminent writer of 18 books, most of that are adopted as textbooks. Having graduated in 1959 with ‘HONOURS’, he obtained his Master’s diploma in 1969 with ‘HONOURS’ and Ph.D. in 1976. Having began his profession as Assistant Professor in 1959, he was elevated to the posts of Reader in 1965 and Professor in 1978. He additionally held the posts of Head of Civil Engg. and Dean of the Faculty of Engineering at M.B.M. Engineering College, Jodhpur. During his instructing profession of about 36 years, he guided a lot of analysis college students. Dr. Punmia has authored greater than hundred papers, monographs and technical studies revealed in numerous Indian and Foreign Journals. He had been advisor to numerous authorities, semi-government and personal organizations.

Er. Ashok Kumar Jain : He is an eminent Design and Field Engineer. He can also be a prolific author within the area of Civil Engineering.

Dr. Arun Kumar Jain : He is gold medallist at each B.E. and M.E. ranges, was previously working as Assistant Professor of Civil Engineering at M.B.M. Engineering College, Jodhpur. Apart from instructing, he has guided greater than a dozen college students at M.E. degree.

 Book Details of Soil Mechanics and Foundations

Soil Mechanics and Foundations By B.C. Punmia, Ashok Kumar Jain, Arun Kumar Jain – Details

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Inside Soil Mechanics and Foundation:

Earth’s Profile

Our planet Earth has a median radius of 6373 km and a imply mass density of 5.527 g/cm³ in contrast with a imply mass density of soil particles of two.7 g/cm³ and water of 1 g/cm³. Studies from elastic waves generated by earthquakes have proven that the earth has a core of heavy metals, principally iron, of mass density Eight g/cm³ surrounded by a mantle. The mantle consists of two components, higher mantle and decrease mantle. The higher mantle is strong rock whereas the decrease mantle is molten rock. Above the higher mantle is the crust, which can be as a lot as 50 km thick within the continental areas and as little as 7 km thick in oceanic areas.

Plate Tectonics

The crust and a part of the higher mantle, about 100 km thick, make up the lithosphere. Below the lithosphere is the asthenosphere, which is about 150 km thick. The lithosphere is fragmented into about 20 giant plates—giant blocks of rocks—that slide in opposition to and transfer towards, away from, and below one another above sizzling molten supplies within the asthenosphere. The principle governing the actions of the plates is named plate tectonics. Plate tectonics relies on uniformitarianism, which states that the earth’s forces and processes are steady reasonably than catastrophic and the current is much like the previous

Composition of the Earth’s Crust

The supplies that comprise the earth’s crust are sediments and rock. Sediments are strong fragments of inorganic or natural materials ensuing from the weathering of rocks and are transported and deposited by wind, water, or ice. Rocks are categorized into three teams—igneous, sedimentary, and metamorphic— based mostly on the earth’s course of that kinds them. Igneous rocks are shaped from magma (molten rock supplies) emitted from volcanoes that has cooled and solidified. Sedimentary rocks are shaped from sediments and animal and plant supplies which might be deposited in water or on land on the earth’s floor after which subjected to pressures and warmth. The warmth and pressures which might be concerned in forming sedimentary rocks are low compared to these for igneous rocks. Metamorphic rocks are shaped deep throughout the earth’s crust from the transformation of igneous, sedimentary, and even current metamorphic rocks into denser rocks. Their look and texture are variable. For engineering functions, foliation (layering attributable to parallel alignment of minerals), weak minerals, and cleavage planes are notably essential as a result of they’re planes of weak spot. No melting takes place, so the unique chemical composition of the unique rock stays unchanged. The rock texture typically turns into coarser-grained.

Composition of the Earth’s Crust

The supplies that comprise the earth’s crust are sediments and rock. Sediments are strong fragments of inorganic or natural materials ensuing from the weathering of rocks and are transported and deposited by wind, water, or ice. Rocks are categorized into three teams—igneous, sedimentary, and metamorphic— based mostly on the earth’s course of that kinds them. Igneous rocks are shaped from magma (molten rock supplies) emitted from volcanoes that has cooled and solidified. Sedimentary rocks are shaped from sediments and animal and plant supplies which might be deposited in water or on land on the earth’s floor after which subjected to pressures and warmth. The warmth and pressures which might be concerned in forming sedimentary rocks are low compared to these for igneous rocks. Metamorphic rocks are shaped deep throughout the earth’s crust from the transformation of igneous, sedimentary, and even current metamorphic rocks into denser rocks. Their look and texture are variable. For engineering functions, foliation (layering attributable to parallel alignment of minerals), weak minerals, and cleavage planes are notably essential as a result of they’re planes of weak spot. No melting takes place, so the unique chemical composition of the unique rock stays unchanged. The rock texture typically turns into coarser-grained.

Sedimentary rocks are of specific significance to geotechnical engineers as a result of they cowl about 75% of the earth’s floor space with a median thickness of 0.Eight km. The sediments that comprise sedimentary rocks could also be bonded (cemented) collectively by minerals, chemical substances, and electrical attraction or could also be free. Clastic sedimentary rocks are small items of rocks cemented collectively by minerals similar to carbonates (calcite, CaCO₃) or sulphates (gypsum, CaSO₄ [+2H₂O]). Examples of clastic sedimentary rocks are sandstones shaped from sand cemented by minerals and located on seashores and sand dunes; shales shaped from clay and dust and located in lakes and swamps; and conglomerates shaped from sand and gravels on the backside of streams. Chemical sedimentary rocks are minerals similar to halite (rock salt), calcite, and gypsum which have been shaped from components dissolved in water (e.g., the fabric present in Death Valley, California). Organic sedimentary rocks are shaped from natural supplies similar to crops, bones, and shells. Coal is an natural sedimentary rock shaped deep within the earth from the compaction of crops.

COMPOSITION OF SOILS

Soil Formation

Soils are shaped from the bodily and chemical weathering of rocks. Physical weathering entails discount of measurement with none change within the unique composition of the dad or mum rock and it is explained in details in Soil Mechanics and Foundations. The predominant brokers answerable for this course of are exfoliation, unloading, erosion, freezing, and thawing. Chemical weathering causes each reductions in measurement and chemical alteration of the unique dad or mum rock. The predominant brokers answerable for chemical weathering are hydration, carbonation, and oxidation. Often, chemical and bodily weathering happen in live performance.

Soils that stay on the website of weathering are referred to as residual soils. These soils retain lots of the components that comprise the dad or mum rock. Alluvial soils, additionally referred to as fluvial soils, are soils that have been transported by rivers and streams. The composition of those soils depends upon the atmosphere below which they have been transported and is commonly completely different from the dad or mum rock. The prof le of alluvial soils normally consists of layers of various soils. Much of our building exercise has been and is happening in and on alluvial soils. Glacial soils are soils that have been transported and deposited by glaciers. Marine soils are soils deposited in a marine atmosphere.

Soil Types

Common descriptive phrases similar to gravels, sands, silts, and clays are used to establish particular textures in soils. We will refer to those soil textures as soil varieties; that’s, sand is one soil sort, clay is one other. Texture refers back to the look or really feel of a soil. Sands and gravels are grouped collectively as coarse-grained soils. Clays and silts are fine-grained soils. Coarse-grained soils really feel gritty and exhausting. Fine-grained soils really feel clean. The coarseness of soils is decided from realizing the distribution of particle sizes, which is the first technique of classifying coarse-grained soils. To characterize f ne-grained soils, we’d like additional data on the varieties of minerals current and their contents. The response of fine-grained soils to hundreds, often known as the mechanical behaviour, depends upon the kind of predominant minerals current.

Currently, many soil descriptions and soil varieties are in utilization. Just a few of those are listed under and in the book Soil Mechanics and Foundations.

• Alluvial soils are f ne sediments which have been eroded from rock and transported by water, and have settled on river and stream beds. Calcareous soil comprises calcium carbonate and effervesces when handled with hydrochloric acid.
• Caliche consists of gravel, sand, and clay cemented collectively by calcium carbonate.
• Collovial soils (collovium) are soils discovered on the base of mountains which have been eroded by the mixture of water and gravity.
• Eolian soils are sand-sized particles deposited by wind.
• Expansive soils are clays that bear giant quantity adjustments from cycles of wetting and drying.
• Glacial soils are blended soils consisting of rock particles, sand, silt, clays, and boulders.
• Glacial until is a soil that consists primarily of coarse particles.
• Glacial clays are soils that have been deposited in historic lakes and subsequently frozen. The thawing of those lakes revealed soil prof les of neatly stratified silt and clay, generally referred to as varved clay. The silt layer is mild in shade and was deposited throughout summer time intervals, whereas the thinner, darkish clay layer was deposited throughout winter intervals.
• Gypsum is calcium sulphate shaped below warmth and strain from sediments in ocean brine.
• Lacustrine soils are principally silts and clays deposited in glacial lake waters.
• Lateritic soils are residual soils which might be cemented with iron oxides and are present in tropical areas.
• Loam is a combination of sand, silt, and clay which will comprise natural materials.
• Loess is a wind-blown, uniform, fine-grained soil.
• Marine soils are sand, silts, and clays deposited in salt or brackish water.
• Marl (marlstone) is a mud (see definition of mud under) cemented by calcium carbonate or lime.
• Mud is clay and silt blended with water right into a viscous fluid.

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