Pdf deep foundations soil mechanics day 3 gate 2020 civil engineering notes. Which are not constructed by ordinary methods of open pit excavations. High compression low shear strength swellingshrinkage 2. Several types of deep foundations are discussed below. This student guide is intended as just that a guide for students of civil engineering. Analysis and design of shallow and deep foundations is a significant new resource to the engineering principles used in the analysis and design of both shallow and deep, loadbearing foundations for a variety of building and structural types. The foundation consists of grade beams on deep drilled shafts. Distribute the loads so that the settlement of a structure is either. Herewith we have shared the important gate civil engineering notes pdf for the topic of deep foundation pile types dynamic static formula load capacity of piles. Presented by thamina sharmin cen 00805500 beauty akter cen 00805502 2. Nptel advanced foundation engineeringi introduction piles are structural members that are made of steel, concrete, andor timber. Pile supported foundation pile cap analysis and design based on a geotechnical study, a pile supported foundation is required to support a heavily loaded building column. In several instances, the load to be carried by a column and the soil bearing capacity are such that the standard spread footing. Foundation analysis and desing foundation design 1.
Meyerhof 1963 proposed a formula for calculation of bearing capacity similar to the one proposed by terzaghi but introducing further foundation shape coefficients. Pile supported foundation pile cap analysis and design. Fhwa nhi05042 design and construction of driven pile foundations volume i. Transfer of seismic forces strength and stiffness shallow and deep foundations. The general misconception is that the structural element which transmits the load to the soil such as a footing is the. Deep foundations rely both on end bearing and skin friction, with few exceptions. These damages are typical of buildings on expansive soils. He introduced a coefficient s q that multiplies the n q factor, depth factors d i and inclination factors i i depth factors di and inclination factors ii for the cases.
Nptel computer science, computer networks, cloud computing, machine learning, deep learning, data science, artificial intelligence, python programming, compiler. Rating is available when the video has been rented. Structural dynamics lecture notes civil engineering. Instructional materials complementing fema p751, design examples foundation design 2 foundation design proportioning elements for. They are used to build pile foundations, which are deep and which cost more than shallow foundations chapters 3 and 4. Deep foundations are often used as fender systems to protect bridge piers from vessel impact, figure 91i. Deep foundation introduction tutorial of advanced foundation engineering course by prof kousik deb of iit kharagpur. Types of foundations foundation systems shallow foundation deep foundation pile foundation pier caisson foundation isolated spread footings wall footings combined footings cantilever or strap footings raft or mat foundation. Deep foundation are those foundations in which the depth of the foundation is greater than its width db. For more details on nptel visit nptel related courses. Geotechnical engineering is important in civil engineering, but also has applications in military, mining, petroleum and other engineering disciplines that are concerned with construction occurring on the surface or within. Shallow foundations transfer loads mostly by end bearing.
Resist tension anchors 2 typical applications typical applications. Pockets of sheet piling should be checked tremie tube shall be kept embedded into tremie concrete. Unlike shallow foundation, the deep foundation transmits the load of the superstructure vertically to. Pdf foundation engineering lecture notes part 1 khalid. Soil exploration lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material. Lecture notes on foundation engineering department of civil engineering institute of aeronautical engineering dundigal 500 043, hyderabad. Priti maheshwari department of civil engineering, iit roorkee. Survey in 2000 as part of nchrp research 75% driven piles 14% shallow fnds. Deep foundation analysis usually has a normalparallel orientation to the pier in order to simplify group effects. Basics of foundation engineering with solved problems. Soil erosion a pile is a long slender foundation member, made either of timber.
Nptel provides elearning through online web and video courses various streams. If the depth of a foundation is greater than its width, the foundation laid is known as deep foundation. Introduction functions of foundations the foundation system for a structure is the critical link in the transmission of loads down to the ground. Analysis and design of shallow and deep foundations. Figure 11 illustrates damages to a building constructed on expansive soil with a deep water table in the wet, humid climate of clinton, mississippi. In deep foundation the depth to width ratio is usually greater than 4 to 5. Deep foundations are generally more expensive than shallow foundation. Now, the values of d 1 and d 2 can be calculated easily as will be seen later. Deep foundations are those where the depth of foundation is generally greater than two times of width of footing d 2b. How to download all of the lectures for a course in nptel. Deep foundations as compare to shallow foundations distribute the load of the super structure vertically rather than laterally.
They are used to reduce cost, and when as per soil condition considerations, it is desirable to transmit loads to soil strata which are. Geo technical engineering and foundation engineering. Structural designs of column and footing section18. Its unique presentation focuses on new developments in computeraided. Kousik deb,department of civil engineering,iit kharagpur.
The following list identifies some of the conditions that. Substructure elements are to carry all of the loads specified in aashto seismic and. Definition deep foundations are those in which the depth of the foundation is very large in comparison to its width. Foundation engineering nptel online videos, courses.
The construction process of a deep foundation is more complex. Liquefaction effects on deep foundation performance must be considered for deep foundations in seismic areas. Deep foundation introduction video lecture by prof. Basma 1 of 6 chapter 1 introduction to foundations the soil beneath structures responsible for carrying the loads is the foundation. Advanced foundation engineering video course civil. Difference between shallow and deep foundation civil. Foundation engineering lecture series on foundation engineering by dr.
Courtesy iare foundation engineering objective at the end of this course student acquires the capacity to assess the soil. Soil tests required for deep foundation to ensure the bearing capacity of the soil to support the loads from deep foundation. Deep foundations are required due to various reasons. Sd 470 design of bridges foundations for bridges lecture no. Oneofakind coverage on the fundamentals of foundation analysis and design.
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