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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Experimental evaluation of stabilising potential of brick dust in clay soils
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-12) Bisht, Avani; Ajit Kumar
    Migration of a large number of people towards cities has resulted in urbanization and construction of big engineering structures. Consequently, for accommodation of huge crowd enough suitable land is needed for engineering activities which can be fulfilled only when the soil in that area is competent enough to withstand the load impacted on it. Generally, the soils are classified as clayey and sandy type. The latter formed by physical weathering barely poses any threat, whereas clay formed by chemical weathering, is considered as a problematic soil because of its unpredictable behavioural changes. Construction on clayey soil is one of the biggest challenging tasks for engineers. Numerous studies have been done in the past to bring out a sustainable solution to this issue. The solution they have come up with is soil stabilization which is augmenting the soil properties by adding different additives in it. Many researchers have tried to modify the geotechnical characteristics of clayey soil utilizing different additives namely, lime and cement. However, the cost of such materials in recent years has risen demanding for a better alternative and cost-effective material. Many researchers after doing their critical evaluation suggested brick dust as an alternative to other expensive additives. Hence from economic perspective, brick dust is a cheaper alternative to conventional materials. India is the second largest manufacturer of brick and tons of brick waste generated each year goes in unplanned way. This waste occupies arable land creating environmental concerns. The problems could be solved by using this material as a soil stabilizer. Brick dust is a by-product obtained from brick kilns. It has greater ability to reduce the swelling potential of clayey soil (Sikha and Kumar, 2017). Brick dust is used as a substitute for sand in concrete and mortar and has almost same functions as that of sand and adds some strength and hydraulicity (Rather et al., 2019). In previous studies, utilizing brick dust as an additive is mainly done to evaluate the compaction characteristics, index properties, consistency and very limited investigations have been carried out on shear strength, consolidation and permeability characteristics of clayey soil. In view of the above, the main objective of this study is to investigate the effect of brick dust (introducing in varying percentages) on consolidation, shear strength and permeability characteristics of clayey soil. In addition, laboratory experiments like consistency limit tests, compaction test, unconfined compression test and CBR tests are also performed with an objective to reach for better results and conclusions. For the accomplishment of objectives, a thorough investigation of utilizing brick dust as additive has been planned. Firstly, brick dust was collected from Brick Kiln, located at Rudrapur, Uttarakhand. Soil was procured from the campus of G.B. Pant University of Agriculture & Technology, Pantnagar (Uttarakhand). The overall experimental programme was conducted in two phases. In the first phase, laboratory examination of soil was carried out. In the second and last phase, laboratory experiments were performed on soil mixed with different percentages of brick dust (i.e., 0%, 10%, 20%, 30%, 40% and 50%). After analysing the results obtained from various laboratory experiments, it was concluded that addition of brick dust as additive is satisfactory when mixed with clayey soil. Plasticity index was observed to decrease from 14.37% to 8.45% with increment in percentage of brick dust from 0 to 40% and beyond this a non-plastic behaviour of soil was observed. Proctor results reflect that optimum moisture content decreases from 16.0% to 10.0% while maximum dry density increases from 16.28 kN/m3 to 18.93 kN/m3 on increasing the brick dust percentage from 0 to 50%. The values of un-soaked and soaked CBR increased on addition of brick dust. The stress at failure increased up to 30% addition of brick dust and afterwards it displays a decreasing trend. The compression parameters exhibit decreasing trend on addition of brick dust. The value of cohesion decreases whereas angle of internal friction increases. The permeability of samples was increased when brick dust was mixed up to 50%. These results were compared to the results of prior studies conducted by a number of researchers, which revealed that the observations were in reasonably good accord.
  • ThesisItemOpen Access
    Optimal detection of leakage in water supply pipe networks
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-12) Kothari, Manjul; Mahar, P.S.
    Water transportation is facilitated by pipeline network and is one of the safest modes of water transportation. In terms of lost revenue and service problem, leaks in pipe networks generate considerable challenges for utilities and water users. Leak in pipelines can be caused due to corrosion of pipe wall, poor fitting, abnormal pressure, etc. So, designing a leak detection technique is challenging. However, a physical measurement technique is widely used to detect leakage at the pipeline level. The length of distribution pipe network in large cities might be thousands of kilometers. As a result, physical measures can become time-consuming and costly. In this study, a nonlinear optimization model is developed for optimal detection of leak in water distribution system subjected to constraints like continuity equation, energy (head loss) equation and pressure-dependent leakage. The model applicability has been illustrated using examples of water distribution network. The simulation model has been solved in EPANET 2.2 and then, the nonlinear optimization model has been solved using LINGO 18.0 software. Leaks are assumed to be concentrated at the nodes. Different situations are analyzed for finding the leaks at different locations. The major conclusion drawn from the study shows that with the increase in number of observed heads, more precise leak location can be identified. The optimal detection of leak location are sensitive to variations in friction coefficient. This study will be helpful to water supply engineers and water managers.
  • ThesisItemOpen Access
    Comparative study of vertical steel silo and bunker for different storing materials
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-10) Bhatt, Arpit Kumar; Sunil Kumar
    Steel silos are very light structures and place smaller loads on the foundation, silos are used to store the different grains for longer duration without being them affected with moisture and other natural calamities. The silos are tall structure thus unloading of steel silos is done with gravity flow, hence it reduces the unloading cost of manpower. Thus, steel silos are widely used now a day for storage of materials. Silos are being used in very wide variety of industries. The design and analyze of these storage structure requires very good knowledge of plate and shell structure. The present study is based on the Janssen theory which is used in the Indian Code. Different parameters such as pressure variation with depth, bending moment, torsional moment, total weight, hoop stress and shear stress effect have been studied at critical points and corresponding suggestions have been given to analyze and to design the bin structure safely as per the IS: 9178 Part I and Part II recommendations. Different variables such as depth of silo, pressure ratio, coefficient of wall friction affecting the behavior of the silo, have been studied. The thesis intended to provide the useful information and assistance for methods of analyzing and designing of silos and bunkers.
  • ThesisItemOpen Access
    Pile foundation response to dynamic lateral loading
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-03) Amritesh Kumar; Sharma, S.K.
    In so many cases, the Pile Foundations have largely been integrated and it’s nearly impossible to imagine the integrity of the systems without supplying them. During an earthquake, i.e. in the case of lateral loading on the pile, the pile is considered to be a lateral loaded beam and its bending is governed by the strength of the pile material. Piles have been used in high-rise buildings, transmission towers, nuclear plants, offshore facilities to name a few. In all these situations, they are exposed to both axial and lateral loads. During the earthquake, the pile base structure is often subjected to dynamic loading. It is therefore imperative to research the dynamic response of the pile subjected to lateral loading. The PLAXIS 2D finite element software package was used to observe the pile’s reaction (single as well as group). In addition, piles in the homogeneous medium have been extensively researched, but there is no systematic analysis of the behaviour of piles in the layered deposits that are typically found at the site. The goal of this study is to fill that void. Damping characteristics and local soil properties based on lab results have been incorporated. In particular, the deformation characteristics of the piles under lateral dynamic as well as the axial loading have been considered.
  • ThesisItemOpen Access
    Comparative study of RC multi-storey building with bracings and shear wall
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-09) Joshi, Vijay; Vaneeta Devi
    When a tall building is subjected to earthquake under the action of lateral loads, providing a suitable lateral force resisting system has a significant effect on the performance of the RC frame structure. The present study focuses on the study of system based strengthening systems for RC frame structure. The effectiveness of different locations of shear wall and X bracing on the RC frame structure has been carried out. For this study, a G+9 storied RC frame structure has been considered and structural behavior has been studied for time history at Pin Code: 370020 (Bhuj, Gujarat, India) taken of 2001-01-26 at 03:16:40 UTC of magnitude (M7). The RC frame structure models are analyze by nonlinear dynamic time history as per IS 1893:2016(part1) using SAP2000 software. A comparative study has been performed on parameters namely, joint displacement, base shear, maximum bending moment, shear force and time period on the considered RC bare Frame and system based strengthening systems, thus, six number of models have analysed and compared. From the study, it has been observed that the joint displacement of the bare frame with shear wall on corner edge decrease in the structure as compared to the bare frame in seismic zone V. Base shear value increases in the strengthened RC frame in comparison with bare frame. Maximum bending moment, maximum shear force value and time period values in frame model with shear wall and X bracing get reduced as compared to frame model without them. In the present study, analysis of G+9 storey RC frame with and without system based strengthening has been performed by nonlinear time history analysis using SAP2000, conclusions inferred is that the shear walls configured with the shear wall on corner edge with bare frame have been found beneficial as compared with other models.
  • ThesisItemOpen Access
    Performance analysis of springs at Bhimtal and Betalghat block of Nainital District
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Bisht, Rohit; Prasad, Jyothi
    Natural Springs are the most important resource for the people of Bhimtal and Betalghat block of Nainital District. To meet the daily water demands, the majority of people completely depend on spring water. Due to various anthropogenic activities, the water quality of springs at Nainital district is declining. In the present study, performance analysis of springs of Bhimtal block having coordinates 29.35°N, 79.5667°E and Betalghat block having coordinates 29.5566°N, 79.3451°E was done by conducting their water quality assessment and discharge measurement. Water samples of 13 springs were collected from Bhimtal block and 4 samples of springs were collected from Betalghat block of Nainital District. Water samples were collected 3 times during the winter season 2019-2020 and checked for various Physico-chemical parameters. The DEM of the study area was analysed and various maps such as Aspect Map, Hillshade Map, Contour Map were created using QGIS 3.10. The Water Quality Index of springs was also computed using Physico-chemical parameters. The statistical analysis of these parameters was also performed. From the study it was found that maximum springs of Nainital District are alkaline in nature and all springs were well within desirable limits of pH. At Betalghat block, the concentration of TDS, EC, TH, Alkalinity, Chloride, K+, Na+, Ca++, Mg++ of springs were well within desirable limits whereas at Bhimtal block, only 1 spring sample exceeds the desirable limits of TDS, EC, TH but was below the permissible limits. The alkalinity of 29.62% springs was exceeding desirable limits but was below permissible limits. Water Quality Index of spring water of Bhimtal and Betalghat block was decreased after the lockdown period i.e the quality of water is increased. It was observed that in the quality aspect, the performance of springs at Betalghat block is much better than those at Bhimtal block but all the springs are suitable for drinking and domestic purposes.
  • ThesisItemOpen Access
    Study of wind effect on multi storey RC building with plan irregularity
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Ramola, Pankaj Kumar; Verma, V.K.
    With population growth and land scarcity, the construction of high-rise buildings has become inevitable. Wind load plays an important role in tall structures while designing buildings. Thus, to understand and analyses the wind effect on structures. The objective of thesis was to study and analyse the effect of wind load on different shape of the building and asses the most structurally stable shape of a multi storey structure. The present study deals with five different shapes of buildings: regular L, T, U and I. IS: 875 (Part 3)-2015 is the standard code of practice for design loads of buildings and structures which was used to calculate the gust factor. Further, all these shapes were analyzed using STAAD.Pro software. Each building is a 31 storied building with storey height as 3m summing upto a total height of 31m. For, the purpose of analysis the plan area and stiffness of the columns were kept equal. Dead loads and Live loads were calculated by using the code IS: 875-1987 (Part 1, 2) respectively. By using the Indian standard codes the combinations of loads were taken. Parameters like, storey displacement, storey drift, base shear, axial forces and base moment used for the assessment. Wind load and storey displacement increases with increase in height of structure. Based on this study it can be established that the shape of structure plays a very important role in resisting wind loads. Regular shape and I shape were the most stable shapes whereas L-shape and U-shape was the least stable of all the shapes.
  • ThesisItemOpen Access
    Performance based seismic analysis of building
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Chandra, Hariom; Sunil Kumar
    When a tall building is subjected to earthquake under the action of lateral loads. Increasing the pushover loads step by step significantly predicts the nonlinear behaviour and the performance of the RC frame structure. The present study focuses on the study of lateral pushover load on RC frame structure. For this study, a G+8 storied RC frame structure has been considered and structural behavior has been studied in seismic zone V for both pushover load patterns. Analysis was done in ETABS2016 and from this analysis performance point is obtained. The pushover curve is drawn in terms of base shear-roof displacement. The pushover curve for load pattern PUSHX initially increases and then decreases due to the reduced stiffness. The pushover curve for load pattern PUSHY almost remained linear, due to greater stiffness of building against PUSHY. Pushover analysis results has been checked using FEMA440 code to get the performance point for both pushover load pattern PUSHX and PUSHY, the building showed more displacement in x direction compared to y direction. Formation of hinge started from lower storey and progressively moved towards the upper stories with the increment of pushover load. The building is designed as per IS456:2000 and IS1893:2002. From the study, it has been observed that the base shear at performance point for both load pattern PUSHX and PUSHY is greater than design base shear, so the building is safe under the earthquake loading.
  • ThesisItemOpen Access
    Study of shear wall locations in RC building
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Tiwari, Neeraj Kumar; Vaneeta Devi
    Due to devastating effect of earthquake in the past decade, it is now important to consider the effect of earthquake while constructing medium to high rise buildings. Due to scarcity of space and shifting of people from rural to urban areas, it is now essential to construct high rise buildings. To counter the large size of beams and columns an alternative has been found for high rise buildings and is termed as shear wall. It has very high in plane stiffness and when situated in advantageous positions in a building, they can be very efficient in resisting lateral loads originating from earthquakes. However, we cannot provide shear walls at all the locations due to economic considerations. So it is very necessary to determine effective, efficient and ideal location of shear walls. Therefore, an attempt has been made to find the ideal location of shear walls in symmetrical structures. A 3-D analysis of G+14 storey shear wall structures has been carried out using the STAAD. Pro V8i software. Different models have been drawn by adopting different locations of shear walls. A comparative study has been done on six parameters, namely, storey displacement, storey drift, storey shear, base shear, bending moment, peak storey shear and time period of the structure between bare frame RC model and shear wall RC frame model. Linear dynamic method of analysis (response spectrum analysis) has been used following IS 1893 (Part l):2016. From the study, it has been observed that the lateral displacement, storey drift, bending moment and time period of the shear wall system decreases as compared to the bare frame. Base shear and storey shear value in the shear wall structure increases as compared to bare frame structure. It is concluded that Boxshape shear wall system (located at the core of the building) significantly contribute to structure stiffness as compared to the other shear wall systems.