Blast densification is being utilized for more than 80 years to densify. Nptel syllabus ground improvement techniques web course course outline the term ground improvement and ground modification refer to the improvement in or modification to the engineering properties of a soil that carried out at a site where the soil in the natural state doesnt possess properties that are acceptable to us for the proposed civil engineering activities. Ground improvement techniques classification, case studies. Preloading method is used to remove pore water over time. L21 novel ground improvement techniques against natural disaster such as earthquakes and tsunami 08092016 thr 09. Ground improvement techniques newcastle university. An introduction to ground improvement using geotextile encased columns gec dimiter alexiew a,1. Mechanical ground improvement most of the time can be a cost effective foundation solution if the fundamentals of soil mechanics and soil behavior are known to the user.
G l sivakumar babu department of civil engineering indian institute of science bangalore 560012 email. Ground improvement techniques for railway embankments article pdf available in ground improvement 162gi1. Pdf ce6012 ground improvement techniques git books. Ground improvement methods with special emphasis on. As in all ground treatment techniques, adequate site. Civil engineering ground improvement techniques nptel. Page 5 ground improvement ground treatment using grouting nptel course prof. Ground improvement techniques is one of the textbook for engineering students. Objectives of introducing this subject at first year level in masters of civil engineering are. G l sivakumar babu notes edurev is made by best teachers of. Ground improvement refers to a technique that improves the engineering properties of the soil mass treated. Vacuum consolidation is used for improving soft soils by using a vacuum pump. Vibrocompaction increases the density of the soil by using powerful depth vibrators. How are different ground improvement techniques classified.
Ground improvement trevi ground engineering project duration. The engineering techniques of ground improvement are removal and replacement, precompression, vertical drains, insitu densification, grouting, stabilization using admixtures and reinforcement. Notes ground improvement techniques git lecturenotes. Based on improvement objectives and ground and site conditions. Lecture 20 grouting technology has become a common ground improvement method used frequently for underground and foundation constructions. Purushothama raj textbook free download in pdf ground improvement techniques by p. The knowledge gained from this paper can be put to good use when mechanical ground improvement is comtemplated. These other ground improvement techniques are not specifically addressed in this guidance document. Tags ground improvement techniques ground improvement techniques lecture notes ground improvement techniques notes ground improvement techniques pdf previous ou updates osmania university next jntuh b. Under these conditions, soil needs to be treated using ground improvement techniques.
Rrb je 2019 cbt 2 exam lec 25 soil stabilization soil mechanics civil engg shubham sir duration. Notes for ground improvement techniques git by swapna mohanta lecture notes, notes, pdf free download, engineering notes, university. Explore ground improvement techniques with free download of seminar report and ppt in pdf and doc format. Basic principle of ground improvement ground improvement is the modification of the ground properties in order to achieve the required ground conditions for the particular use of the ground. Also explore the seminar topics paper on ground improvement techniques 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. Youll have a better understanding of the concepts behind a range of ground improvement techniques, and be able to identify appropriate techniques for a range of ground and site conditions. Impart the knowledge of identification of the problems encountered on site related to soils 2. Chemical engineering advanced mathematical techniques in chemical engineering jun 14, 2019 0619 by national programme on technology enhanced learning. Nptel provides elearning through online web and video courses various streams. Ground improvement techniques video lectures civil. In recent years, new methods have emerged that offer greater cost efficiency.
Many ground improvement techniques are available to suit the particular needs of soil type, structure type and performance criteria. Classification of ground improvement techniques methods and techniques of ground improvement factors affecting the selection of techniques page 3 ground improvement nptel course prof. Ground improvement techniques seminar report, ppt, pdf. Every technique should lead to an increase of soil shear strength, a reduction of soil compressibility and a reduction of soil permeability. Stone columns have been used since the 1950s as a technique for. Nptel civil engineering ground improvement techniques.
Earth fills, water lowering, vacuum under impervious membrane are some of the techniques used for applying preload. Injection of fluidized material into the voids of the ground of spaces between. Nptel syllabus ground improvement techniques video course course outline the soils at construction sites are not always totally suitable for supporting physical infrastructure such as buildings, bridges, highways, tunnels and dams. Ground improvement techniques video lectures nptel. Anna university ce6012 ground improvement techniques syllabus notes 2 marks with answer is provided below. Blasting technique for ground improvement civildigital. Blasting is the use of buried explosives to cause the densification of loose cohesion less ground. View and download powerpoint presentations on ground improvement techniques ppt. Pdf ground improvement techniques for railway embankments. Ground improvement techniques pdf notes git notes pdf. Once the settlement under the pre load is completed, the preload is removed is removed and the construction of the structure is started. This textbook will useful to most of the students who were prepared for competitive exams. An introduction to ground improvement using geotextile.
Educate students with numerous ground improvement principles and methods. Ce6012 git syllabus notes download link is provided and students can download the ce6012 syllabus and lecture notes and can make use of it. Adopted aggregate application backfill cement chemical coefficient cohesive soils consolidation construction curve dams densification depends deposits depth dewatering system diameter drainage dry density effective electroosmosis electroosmotic embankment engineering equipment excavation field filter flow foundation geomembranes geosynthetics. Ground improvement techniques usb media storage type. Chapter 14 ground improvement technology nysdot geotechnical page 148 october 3, 20 design manual 14. The principal is that the blasting of explosives in a predetermined pattern causes liquefaction, followed by the expulsion of pore water and subsequent densification of the ground. Ground improvement has developed into a sophisticated. Area, depth and location of treatment required many ground improvement methods have depth limitations that render them unsuitable for applications for deeper soil.
These techniques offer cost effective solutions, whilst reducing construction period considerably. Sivakumar babu from iisc bangalore made available by nptel elearning initiative. D scholar mnit, jaipur abstract in recent years rapid development of infrastructures in metro cities compounded with scarcity of. Ground improvement techniques 0mgt201 pc objective of the course. Sivakumar babu, department of civil engineering, iisc bangalore. This paper provides a system description, the required design procedure and details of ongoing. Those which have been recently used entail sand drains, prefabricated. Find powerpoint presentations and slides using the power of, find free presentations research about ground improvement techniques ppt. Furthermore, these techniques also offer environmental friendly systems, which is important for urban areas. Ce6012 notes syllabus all 5 units notes are uploaded here.
Recent developments in ground improvement techniques a. The process of grouting consists of filling pores or cavities in soil or rock with a liquid form material to decrease the permeability and improve the shear strength by. Ground improvement techniques civil engineering course from iisc bangalore nptel lecture videos by dr. The ground can be improved by adapting certain ground improvement techniques. Usually, the properties that are modified are shear strength, stiffness and permeability. Click on any video lecture link to view and download that video. Mod09 lec39 microbial geotechnology and ground improvement. Ce6012 ground improvement techniques syllabus notes. Contents nptel syllabus ground improvement techniques. Ground improvement by drainage, dewatering methods, design of dewatering systems, preloading, vertical drains, vacuum consolidation, electrokinetic. Ground improvement techniques for stabilization of.
Ground improvement is carried out for various objectives. The aim of these techniques are to increase the bearing capacity of soil and reduce the settlement. The choice of ground improvement technique depends on geological formation of the soil, soil characteristics, cost, availability of backfill material and experience in the past. These videos are provided by nptel elearning initiative. What are different methods that are applicable to different types of soils.
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