Jitesh T. Chavda

Jitesh T. Chavda
Sardar Vallabhbhai National Institute of Technology | SVNIT · Department Of Civil Engineering

Doctor of Philosophy
Computational Geomechanics, Physical Modelling and Image Analysis in Geotechnics, Conservation of Heritage Sites

About

23
Publications
10,781
Reads
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64
Citations
Introduction
Dr. Jitesh T. Chavda is working as Assistant Professor in Geotechnical Division, Department of Civil Engineering, SVNIT Surat. His area of research includes the Finite Element Analysis of Geomechanics problems like Excavations, Shallow and Deep foundations, estimation of collapse load, constitutive modeling, etc. His research also focuses on 1g model testing, low and high strain dynamic soil properties, MASW test, conservation of heritage structures, seismic hazard analysis, image analysis, etc.
Additional affiliations
October 2019 - present
Sardar Vallabhbhai National Institute of Technology
Position
  • Professor (Assistant)
March 2019 - August 2019
Indian Institute of Technology Madras
Position
  • PostDoc Position
January 2015 - February 2019
Indian Institute of Technology Madras
Position
  • PhD Student
Education
January 2015 - March 2019
Indian Institute of Technology Madras
Field of study
  • Geotechnical Engineering
July 2012 - July 2014
Sardar Vallabhbhai National Institute of Technology
Field of study
  • Soil Mechanics and Foundation Engineering
July 2009 - April 2012
University of Mumbai
Field of study
  • Civil Engineering

Publications

Publications (23)
Article
Full-text available
It is common that the structures on the hilly terrain have footings laid on rockmass slopes. For such a case, there is a need to evaluate the factors governing the bearing capacity of the strip footing resting on the rockmass slope. In the study, the bearing capacity of strip footing resting on rockmass slope has been evaluated by finite element li...
Article
Full-text available
Settlement limitation is one of the major concerns for the designers of machine foundation as machines are very sensitive to settlement. This restricted criterion necessitates the need for deep foundations as using deep foundations reduces the settlement. However, little attention is given in past studies regarding the dynamic response of bored pil...
Article
Full-text available
This paper presents an Artificial Neural Network (ANN)-based approach for predicting tunnel stability that is both dependable and accurate. Numerical solutions to the instability of unlined horseshoe tunnels in cohesive-frictional soils are established, primarily by employing numerical upper bound (UB) and lower bound (LB) finite element limit anal...
Article
Open caissons are massive foundations sunk to the required depth by excavating the soil in contact with the cutting edge of the caisson through the annular space of the shaft. The sinking of caisson initiates when the soil in contact with the cutting edge fails in bearing. The evaluation of bearing capacity of the cutting edge helps in proper plann...
Article
Stability analysis of earth slopes can be carried out by either limit equilibrium method (LEM) or finite element method (FEM). The LEM has inherent limitations as it does not consider the stress-strain relation of the material, whereas the FEM for slope stability analysis is widely used because it accounts stress-strain behaviour of soil, the forma...
Conference Paper
Full-text available
The ring footings are usually adopted as a foundation for a structure having circular geometry. Generally, the bearing capacity of ring footing is evaluated either experimentally and numerically for different radii ratios. The radii ratio (ri/ro) of the ring footing is defined as the ratio of inner radius (ri) to its outer radius (ro). The bearing...
Conference Paper
Full-text available
Heritage Impact Assessment (HIA) is engineered way to quantify the possible risk to the heritage structures and sites from the proposed construction activities nearby. A case study on the evaluation of HIA of the proposal near the heritage structures David Yale and Joseph Hyner's tomb, which is under the protection of Archeological Survey of India...
Conference Paper
Full-text available
In geotechnical engineering, many problems like installation of pile, prefabricated vertical drains, helical pile, and spudcan, successive landslides, soil liquefaction, etc. encounter large deformations. These large deformations can be investigated by numerical solution techniques. Due to the large deformations, the geometry of the domain keeps ch...
Chapter
Full-text available
The analytical evaluation of the bearing capacity of the ring footing and cutting edge of the open caisson requires a definition of the size of failure zone in the soil, whereas the failure zone in soil depends on the type of soil and the configuration of the ring footing and cutting edge of the open caisson. In the study, the 1 g model tests are c...
Article
Resistance offered by the soil to the cutting edge of the caisson and soil flow around the cutting edge will vary continuously during sinking. In this study, a series of 1g model tests are performed to investigate the load-penetration response and soil flow mechanism in sand around the cutting edge of the circular open caisson. Full-and half-open c...
Article
Ring footing is defined by a radius ratio (r i /r o) which is the ratio of the inner radius (r i) to outer radius (r o) of the ring footing. The behaviour of ring footings (r i /r o = 0 to 1) lies in-between the behaviour of circular (r i /r o = 0) and strip footings (r i /r o = 1). In this study, the variation of bearing capacity factors N' c , N'...
Thesis
Full-text available
Open caissons are deep foundations sunk in the ground by the removal of the soil within the caisson shaft. A cutting edge with a tapered inner face is used at the bottom of the caisson to allow the bearing failure of the soil and hence the continued sinking. In the present study, the bearing capacity factors of the cutting edge for the wide range o...
Article
In this study, the vertical bearing capacity factors N'c, N'q and N' are evaluated for smooth and rough base ring footings resting on c- soil using the finite element method. The radii ratio, (ri/ro), is the ratio of internal radius to the external radius of the ring footing, is varied from 0 to 0.75 with an increment of 0.25. The friction angle...
Article
Open caissons are sunk into the ground by their own weight. A cutting edge of the caisson having a tapered inner face on loading – that is, raising of the steining – results in bearing failure by displacing the soil which is in contact with the cutting edge. The bearing capacity of the cutting edge and the soil flow mechanism depend on the configur...
Article
In this paper, the lateral response of a contiguous pile wall retaining system under staged excavation is investigated using physical modelling. The effect of pile stiffness on pile wall deformation is studied by changing the diameter of pile. Numerical simulation of the physical response of the pile wall is studied using the finite element program...
Article
Finite element method can be used for computing bearing capacity of shallow foundation with irregular geometry resting on variable subsoil. It is necessary to quantify the parameters affecting the ultimate capacity of footing. This paper presents the results of finite element (FE) analysis of the ultimate failure load of a rough base rigid strip fo...
Conference Paper
Open caissons are deep foundations sunk into the ground by removal of soil within the caisson shaft. A cutting edge with a tapered inner face is used at the bottom of the caisson to allow the bearing failure of the soil which is in contact with the cutting edge. The soil is removed within the shaft of the caisson during sinking which results in bea...
Chapter
Full-text available
Open caissons are sunk into the ground by removal of soil within the caisson shaft. During sinking of caisson, the stresses in the soil at the cutting edge increase and result in the bearing failure of soil. The extent of soil failure in the excavation side of the open caisson is termed as influence zone. In this paper, the finite element analysis...
Poster
Full-text available
ABSTRACT: In this study, the finite element (FE) analysis is carried out to evaluate the ultimate capacity of a single barrette using plane strain idealization. The effect of strength parameters, deformation parameters, unit weight of the soil, surcharge, interface strength between the barrette and soil and geometry of the barrette on the ultimate...
Conference Paper
Full-text available
In this study, the finite element (FE) analysis is carried out to evaluate the ultimate capacity of a single barrette using plane strain idealization. The effect of strength parameters, deformation parameters, unit weight of the soil, surcharge, interface strength between the barrette and soil and geometry of the barrette on the ultimate capacity o...
Conference Paper
Full-text available
During earthquakes, soil plays a great role for the safety of supported structures. Dynamic soil properties are very useful in Earthquake Geotechnical Engineering problems like ground response analysis, seismic soil-structure interaction, problems due to liquefaction, etc. The two important parameters required for analysing the above problems are t...
Conference Paper
Full-text available
Urbanization has set forth a challenging trend to go deeper into the ground to meet the space requirement for basement parking, public amenities, housing utilities, etc. The Pile walls are commonly used in urban area as retention systems for deep excavations. The Numerical analysis was carried out using 3-Dimensional Geotechnical FEM software " PLA...
Conference Paper
Full-text available
Buildings are subjected to different earthquake loading and behaves differently with diversification in the types of soil condition, such as dense soil, medium and soft soil. Different soil properties can affect seismic waves as they pass through a soil layer. When a structure is subjected to an earthquake excitation, it interacts with the foundati...

Questions

Question (1)
Question
Dear Friends,
I working in area of evaluation of collapse load for axisymmetric problems in geomechanics. 
I am evaluating N gamma (Weight component) for Conical footing having cone angle of 45 degree using finite element method (PLAXIS 2D).
The load deformation plot for cone diameter of 2 m is not having a saturation value i.e. the load keeps on increasing with increase in the displacement. The input parameters are:  cohesion less soil (c = 0.1 kPa), no surcharge (q = 0), weight of 20 kN/m3, Phi = 10 degree. I am using Plaxis-2D axisymetric formulation.  
Corresponding to weightless cohesive soil (unit weight is zero, cohesion = 20 kPa, surcharge = 0), the load disp plot has a saturation value whereas if unit weight is assigned, the load disp increases with increase in the displacements.
I am not able to obtain the collapse load corresponding to which the Nc Nq and Ny are determined.  
I am not getting a load disp curve with saturation or limiting value if a finite value of unit weight is assigned in the FE model
Can you please give me your inputs in this regards and what could be the possible error!!
Please see the attached pdf file of the problem statement, FE model, input parameters, etc.
Kind Regards
Jitesh

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Projects

Projects (5)
Project
All Dear Colleagues–Collaborators and Their Laboratories are invited to attach to this project Their old, new, and future works or messages about the stability of plates, shells (cylindrical, spheral, conical, et cetera ... shells), and panels made of metals, composites, concrete, bricks (masonry), wood, et cetera ... in elastic, elastic-plastic and plastic states ... ... if any RSGate Member wants to be added to the project as the Collaborator (at least a co/authorship of one work about the "Stability of Plates" would be required), He needs to be a follower of a member ... , sorry ... , but in another way, the system of the project doesn't recognize Him, and He can't be added ... , ... if any Dear Colleague–Collaborator of the Project wants to add other Colleagues, which work on the stability (at least the co/authorship of one work about the "Stability of Plates" would be required) ... - don't hesitate to invite them ... The main rules of our Project are as follows: 1. every Colleague–Collaborator of our Project should attach at least 1 work about "Stability of Plates" or a message about it, 2. every Colleague–Collaborator of our Project should follow each other, 3. every Colleague–Collaborator of our Project should read and recommend, if only would be so possibility regarding a scientific level of researches, all works with each other, 4. every Colleague–Collaborator of our Project should comment works to each other if only would be a reason to do that - comments naturally may be critical but with respect to authors, 5. every Colleague–Collaborator of our Project should cite each other - if only would be so possibility regarding research works of each one, i.e. in every new work attached to our Project should be cited a big number, e.g. 100 works of Collaborators of our Project, 6. every Colleague–Collaborator of our Project should collaborate and write common (with the Collaborators as co-authors) papers, books, ... and other kinds of works, if only would be so possibility, 7. if any Colleague–Collaborator of our Project has a possibility to help to publish works (e.g. as a member of a scientific journal or publishing house editorial board) should give massage about it in the "goal of the project" or in "updates" in our Project, 8. if any Colleague–Collaborator knows about a conference with "Stability of Plates" as a panel or topic - He should inform us in the "goal of the project" or in "updates" in our Project ... I hope that the above rules of our Project would help us to get success in our scientific work ... , every one of us would like that His work would be noted, read, recommended, commented, discussed, and cited ... , but somebody should do that ... All Dear Colleagues – Collaborators are invited to be added to the Stability of Structures’s Lab regarding the rules of the Lab: https://www.researchgate.net/lab/Stability-of-Structuress-Lab-Krzysztof-Murawski Faithfully Yours Krzysztof Murawski
Project
All Dear Colleagues – Collaborators and Their Laboratories are invited to attach to this project Their old, new, and future works or messages about "Stability of Structures under their Own Weight" what takes under consideration the stability of buildings, towers, domes, bridges, hills, slopes, dams, ... et cetera ... , and stability under own weight of columns, beams, plates, cones, ... et cetera ... , as well as designing and vulnerability of structures under dynamic, seismic, earthquake loading. ... if any RSGate Member wants to be added to the project as the Collaborator (at least a co/authorship of one work about the "Stability of Structures under their Own Weight" would be required), He needs to be a follower of a Member ... , sorry ... , but in another way, the system of the project doesn't recognize Him, and He can't be added ... , ... if any Dear Colleague–Collaborator of the Project wants to add other Colleagues, which work on the stability (at least the co/authorship of one work about the stability would be required) ... - don't hesitate to invite them ... The main rules of our Project are as follows: 1. every Colleague–Collaborator of our Project should attach at least 1 work about "Stability of Structures under their Own Weight" or a message about it, 2. every Colleague–Collaborator of our Project should follow each other, 3. every Colleague–Collaborator of our Project should read and recommend, if only would be so possibility regarding a scientific level of researches, all works with each other, 4. every Colleague–Collaborator of our Project should comment works to each other if only would be a reason to do that - comments naturally may be critical but with respect to authors, 5. every Colleague–Collaborator of our Project should cite each other - if only would be so possibility regarding research works of each one, i.e. in every new work attached to our Project should be cited a big number, e.g. 100 works of Collaborators of our Project, 6. every Colleague–Collaborator of our Project should collaborate and write common (with the Collaborators as co-authors) papers, books, ... and other kinds of works, if only would be so possibility, 7. if any Colleague–Collaborator of our Project has a possibility to help to publish works (e.g. as a member of a scientific journal or publishing house editorial board) should give massage about it in the "goal of the project" or in "updates" in our Project, 8. if any Colleague–Collaborator knows about a conference with "Stability of Structures under their Own Weight" as a panel or topic - He should inform us in the "goal of the project" or in "updates" in our Project ... I hope that the above rules of our Project would help us to get success in our scientific work ... , every one of us would like that His work would be noted, read, recommended, commented, discussed, and cited ... , but somebody should do that ... Simultaneously I would like to note that renunciation of the rules of the Project, can be taken by other Collaborators as kind of dishonesty, especially when a Collaborator would like to obtain a lot of "Reads", "Recommendations" and "Citations", but self doesn't take any so activity ... The all Dear Colleagues – Collaborators are invited to be added to the Stability of Structures’s Lab regarding the rules of the Lab: https://www.researchgate.net/lab/Stability-of-Structuress-Lab-Krzysztof-Murawski Faithfully Yours Krzysztof Murawski
Project
All Dear Colleagues – Collaborators and Their Laboratories are invited to attach to this project Their old, new and future works or messages about Stability of Structures, especially: buckling, wrinkling, crimpling, crumpling ... and their energy absorption as well as about dynamic stability, slope stability .. of axially and non-axially loaded structures like columns, tubes, pipes, beams, plates, boxes, tanks, silos, pales, poles, pillars, conical shells, thin-walled structures as well as nanostructures, foams, gels.. et cetera .. made of metals, wood, plywood, bamboo, bones, composite, laminate, glass, ceramic, gypsum, concrete, rock, brick .. et cetera .. If any RSGate Member wants to be added to the project as the Collaborator (at least a co/authorship of one work about the stability and following of 50 Members of the Project would be required), He needs to be a follower of a member of the project ... , sorry ... , but in another way, the system of the project doesn't recognize Him, and He can't be added ... Naturally, all Dear Colleagues–Collaborators are asked to add every Colleague, which works on the stability (at least the co/authorship of one work about the stability and following of 50 Members of the Project would be required) ... - and don't hesitate to invite them ... Dear Colleagues–Collaborators, I would like to thank You very much for Your current engagement in our Project, but let me allow to remind You what does mean "Collaboration" in the case of our Project, i.e.: 1. every Colleague–Collaborator of our Project should attach at least 1 work about "Stability of Structures" or a message about it, 2. every Colleague–Collaborator of our Project should follow each other (at least 50 Members of the Project), 3. every Colleague–Collaborator of our Project should read and recommend, if only would be so possibility regarding a scientific level of researches, all works with each other, 4. every Colleague–Collaborator of our Project should comment works to each other if only would be a reason to do that - comments naturally may be critical but with respect to authors, 5. every Colleague–Collaborator of our Project should cite each other - if only would be so possibility regarding research works of each one, i.e. in every new work attached to our Project should be cited a big number, e.g. 100 (a minimum number: 50) works of Collaborators of our Project, 6. every Colleague–Collaborator of our Project should collaborate and write common (with the Collaborators as co-authors) papers, books, ... and other kinds of works, if only would be so possibility, 7. if any Colleague–Collaborator of our Project has a possibility to help to publish works about "Stability of Structures" (e.g. as a member of a scientific journal or publishing house editorial board) should give massage about it in the "goal of the project" or in "updates" in our Project, 8. if any Colleague–Collaborator knows about a conference with "Stability of Structures" as a panel or topic - He should inform us in the "goal of the project" or in "updates" in our Project ... I hope that the above rules of our Project would help us to get success in our scientific work ... , every one of us would like that His work would be noted, read, recommended, commented, discussed, and cited ... , but somebody should do that ... Simultaneously I would like to note that renunciation of the rules of the Project, can be taken by other Collaborators as a kind of dishonesty, especially when a Collaborator would like to obtain a lot of "Reads", "Recommendations" and "Citations", but self doesn't take any so activity .