Piles and caissons 52 outlined in the relevant eurocodes, in which the serviceability and ultimate limit states are considered. Grade of concrete m 30 grade of steel fe 500 size of column 680 x 300 mm axial force 1560 kn moment mx 339 knm moment mz 0. Samadhiya, department of civil engineering, iit roorkee. Aug 11, 2019 pile foundation comes under the classification of deep foundation. Pile foundations comprise of piles that are dug into soil till a level of static soil is reached. Nptel advanced foundation engineeringi if the load q at the ground surface is gradually increased, maximum frictional resistance along the pile shaft will be fully mobilized when the relative displacement between the soil and the pile is about 0. Basic concept of transmission tower foundation electrical4u. Pile load capacity calculation methods 85 case c is referred to as the alternative procedure in the note to en 19971 7. Pdf soil mechanics and foundation engineering by dr k. Priti maheshwari department of civil engineering, iit roorkee. The aim was to identify aspects affecting pile foundation design in a challenging environment because the building was to be built on a reclaimed land from the baltic sea and. Pile foundation load carrying capacity iii and settlement calculation. Pile foundation seminar report, ppt, pdf for civil. Lateral load capacity of piles transportation research board.
Pile supported foundation pile cap analysis and design. Advanced foundation engineering video course civil. Nov 14, 2012 theory and practice of pile foundations is. Lecture 1 introduction to deep foundations 1 geotechnical engineering research laboratory university of massachusetts lowell usa 14. Before moving into types of foundation, lets learn what is foundation or footing.
The capacity of the foundation soil in bearing or the capacity of the interface between pile, pier, or caisson and the soil shall be sufficient to support the structure with all prescribed. Load bearing capacity of piles part 1 design of pile foundations in sand or. So last class i have discussed about the calculation of load carrying capacity of pile. Now this class i will discuss how to calculate the load carrying capacity of the piles. So, end bearing pile act as column transmit the load through a weak soil to a hard stratum, and the ultimate load carrying capacity of pile ideally it should be equal. Pile lateral resistance com624p lpile 0 20 40 60 80 100 120 140 160 1800. Mar 06, 2010 preface pile foundations is a very vast subject and it is not possible to cover all the information regarding pile foundations in one book or presentation. Design for a large refinery expansion was undertaken at a site reclaimed from a lake about 40 years ago. Rating is available when the video has been rented. 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. Most of the structure consist of two parts, one above the ground which is known as super structure and the other substructure of the foundation which lies below the ground level. A large number of multiple choice questions and objective questions have been added at the end of each chapter.
Nptel advanced foundation engineeringi introduction piles are structural members that are made of steel, concrete, andor timber. Mat foundations introduction under normal conditions, square and rectangular footings are economical. Although the application of advanced analysis techniques to foundation design is becoming increasingly common and is illustrated in this chapter, analysis should not be the primary focus of foundation design. Civil engineering advanced foundation engineering nptel. Good foundation design for seismic resistance requires familiarity with basic soil. When the bearing capacity of soil is very low and the structural load is very high, this foundation is suggested. A bearing plate with a hole shall be placed on the head for the jack to rest. Structure of the guide introduction to pile foundations pile foundation design load on piles. They are used to build pile foundations, which are deep and which cost more than shallow foundations chapters 3 and 4. Deep foundations piles foundation civil engineering mcqs.
These piles support the structure by the skin friction between the pile surface and the surrounding soil and end bearing force, if such resistance is available to. 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. The common types of pile cap use in the construction are differentiated according to the following images. The strength of foundation components shall not be less than that required for load combinations that do not include seismic load effects. Lecture 1 introduction to deep foundations 1 geotechnical engineering research laboratory. Kindly bear in mind that at the end of the day, it is always the structural engineers decision and judgment will still follow depending on your guts and prerogative, but at least the above basic knowledge can help you dig in and explore pile cap designing. Also explore the seminar topics paper on pile foundation with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. Nptel syllabus advanced foundation engineering video course course outline the course advanced foundation engineering will cover various aspects of foundation engineering including soil exploration, details of shallow and deep foundations, retaining walls.
The pile foundation is used to describe a construction for the foundation of a wall or a pier, which is supported on the pile. Load tables should clearly state whether the loads are service or ultimate. Pile foundation comes under the classification of deep foundation. Types of foundation contact pressure distribution below footings and raft isolated. The piles may be placed separately or they may be placed in the form of cluster throughout the length of the wall. Structural design of reinforced concrete pile caps the strutandtie method extended with the stringerpanel method december 2006 a. Earthquake resistance of integral abutment bridges. Effect of residual loads on load distribution in driven piles in sand at arkansas river. Pile head the pile head shall be chipped off till sound concrete is met wherever applicable. Instructional materials complementing fema 451, design examples foundation design 142 load path and transfer to soil soil pressure force on a pile eq on. So, now, this chart this the lower portion of this chat and be used for the foundation which is which whose depth of foundation is high. This report presents the results of a study to assess the.
Design the pile cap shown in the following figure with 12 in. The above design assumptions and recommendations are considered as guidelines in considering pile cap as your choice of foundation. Pile foundation has many applications as will be explained below. Good foundation design for seismic resistance requires familiarity with basic soil behavior and common.
The reinforcement shall be cut and head levelled with plaster of paris. Heavy structures with large reactions require high capacity piles and small diameter castinsitu piles are inadequate. The objective of this bachelors thesis was to design pile of foundation for a residential building. Foundation engineering nptel online videos, courses iit. Arora is to present the fundamentals of the subject in a simplified manner.
A pile is basically a long cylinder of a strong material such as concrete that is pushed into the ground to act as a steady support for structures built on top of it. How to design pile caps in safe the structural world. A slender deep foundation unit made of materials such as steel, concrete, wood, or combination thereof that transmits the load to the ground by skin friction, end bearing and lateral soil resistance. The theoretical manual is currently in preparation and is intended to be a companion volume that provides a detailed discussion of the techniques used for the designanalysis of pile foundations as. As previously discussed in our article pile cap design assumptions and recommendations, pile cap is a type of foundation that composed of thick concrete slab built on top of piles used to transmit the load of the structure into the hard strata of the soil.
So, last class i have discuss about various types of piles. Pile foundation classification of pile foundations pile. Basic concept of transmission tower foundation may 15, 2018 february 24, 2012 by electrical4u foundation of any structure plays an important role in safety and satisfactory performance of the structure as it transmits mechanical loads of the electrical transmission system to earth. Nptel notes pdf civil engineering 105 courses in pdf format ships within. Today i will discuss how we can calculate the load carrying capacity of pile based on the spt data. Given the soft and compressible marine clays in the boston area, driven pile foundations were selected to support specific structures, including retaining walls, abutments, roadway slabs, transition structures, and ramps. Kousik deb department of civil engineering indian institute of technology, kharagpur lecture 38 pile foundation xii so, last class i have discussed above the load carrying capacity of pile based on scpt data. Nptel civil engineering advanced foundation engineering. Vesic 1967 on the basis of model tests, that the vertical effective stress reaches a limiting value at a certain. Instructional materials complementing fema 451, design examples foundation design 142 load path and transfer to soil soil pressure force on a pile eq on unloaded pile pile supporting structure. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. This timber pile design and construction manual has been developed by the american wood preservers institute awpi as its official recommendation for timber piling design and construction. Pile foundation seminar report, ppt, pdf for civil engineering.
In the future pile design is likely to follow the limit state design methods. Nptel video lectures, iit video lectures online, nptel. By the term marine pile, it is commonly meant the piles used as a structural part of jetties, wharves, dolphins and other such near shore and off shore structures. There are various types of such as pile end bearing piles, friction piles, settlement reducing piles, tension piles, laterally loaded piles and piles in fill. The ultimate bearing capacity of a pile is the maximum load which it can carry without failure or excessive settlement of the ground. Pile foundations are deep foundations used when the site has a weak shallow bearing strata making it necessary to transfer load to a deeper strata either by friction or end bearing principles. Nptel provides elearning through online web and video courses various streams. Explore pile foundation with free download of seminar report and ppt in pdf and doc format. The basic aim of soil mechanics and foundation engineering written by dr. Foundation engineering nptel online videos, courses iit video lectures. Lecture notes on foundation engineering department of civil engineering institute of aeronautical engineering. Introduction the intent of this paper, is to focus on design concepts and issues related to the seismic design of pile foundation systems representative of those typically used.
Pile deep foundation foundation with length 2 x diameter or lowest dimension. Sengupta senior general manager, itd cementation, kolkata700072, india. Pile foundation, a kind of deep foundation, is actually a slender column or long cylinder made of materials such as concrete or steel which are used to support the structure and transfer the load at desired depth either by end bearing or skin friction. Characteristic pile resistance from profiles of ground test results part 2 of en 1997 includes the following annexes. In foundation practices, the main point of concern is bearing capacity of soil. In order to reduce the costs and improve the overall performance of building systems, the static optimized design with variable rigidity of piled raft foundations has been widely used in recent years.
The objective of this presentation is to give an overall view of the subject which will serve as beginners guide. The focus of the presentation is mainly on onshore pile foundations. The bearing capacity also depends on the methods of installation. Nov 10, 2019 the ultimate bearing capacity of a pile is the maximum load which it can carry without failure or excessive settlement of the ground. The data in this publication has been prepared in accordance with recognized engineering principles and is based on available technical data. Foundation engineering nptel online videos, courses.
Mod01 lec17 pile foundation load carrying capacity i. Acces pdf deep foundations analysis and design making made in 3ds max 2012, edited in adobe premier cs4 construction steps of a house in. Abutment design example michigan technological university. Davisson, department of civil engineering, university of illinois, urbana pile foundations usually find resistance to lateral loads from a passive soil resistance on the face of the cap, b shear on the base of the cap, and c passive soil resistance against the pile shafts. Types of piles and their function factors influencing the selection of pile carrying capacity of single pile in granular and. Timber piles and construction timbers, manual of practice, no. Twothirds the final load at which the total settlement attains a value of 40 mm. The natural soils consist of sand deposited on normally consolidated, compressible post glacial lacustrine clay followed by silty. Foundation engineering online course video lectures by iit. Pile foundations applications with buildings and bridges. Here the loads are taken to a deep level by means of a vertical member called pile. Jan 15, 2016 pile foundation seminar and ppt with pdf report. Factors influencing the selection of pile carrying capacity of single pile in granular and cohesive soil static. So relatively higher depth of foundation we can use for this lower chart and, for the for example, when you calculate the pile foundation settlement calculation, we may use this lower portion of the cha chart.741 316 63 1318 1543 369 558 625 1365 254 316 467 750 848 442 671 904 517 200 293 94 668 1531 91 318 930 906 1165 1355 712 919 835 854