This document discusses seismic response prediction of concrete arch dams. It begins with an introduction to arch dams, describing their curved shape and suitability for narrow valleys. It then discusses various classifications of arch dams based on thickness ratios and structural heights. The document reviews literature on dynamic analysis of arch dams, noting factors like reservoir boundaries, water compressibility, and dam-foundation interaction. It provides an example of the Idukki Dam in Kerala, India, the first arch dam built in the country. Finite element modeling is mentioned as a tool for seismic response prediction of concrete arch dams.
this slide shows different types of dams, their sizes and short information of dams.following dams are explained in this slide which are given below masonry dam, concrete dam, arch dam,earthen dam. this slide also shows types of material required for dam, strength, hight
this slide shows different types of dams, their sizes and short information of dams.following dams are explained in this slide which are given below masonry dam, concrete dam, arch dam,earthen dam. this slide also shows types of material required for dam, strength, hight
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
vacuum dewatering system
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wellpoint pump systems
dewatering pump system
dewatering pump
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small wellpoint dewatering systems
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The presentation illustrates a technique for ground improvement, Grouting. In India, grouting is still not being used very much. In this presentation, I have demonstrated the basic types of grouting, goals of ground improvement and two case studies of grouting.
Topics:
1. Types of Gravity Dam
2. Forces Acting on a Gravity Dam
3. Causes of failure of Gravity Dam
4. Elementary Profile of Gravity Dam
5. Practical Profile of Gravity Dam
6. Limiting height of Gravity Dam
7. Drainage and Inspection Galleries
Topics:
1. Reservoir Classification
2. Investigations
3. Selection of Site for Reservoir
4. Zones of Storage
5. Storage Capacity and Yield
6. Mass Inflow Curve & Demand Curve
7. Calculation of Reservoir Capacity
8. Reservoir Sedimentations
9. Life of Reservoir
10. Selection of Dam
DAMS
Types of dams
Selection of dam sites
Geological characters for investigation
Selection of the dam type
Gravity dams
butress dams
embankment dams
arch dams
cupola dams
composite dams
Bhakra Dam
Mir Alam multi-arch dam
Idukki Dam
Tehri Dam
Ujani Dam or bhima dam
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
vacuum dewatering system
vacuum dewatering pump
vacuum dewatering box
wellpoint pump systems
dewatering pump system
dewatering pump
dewatering wellpoint
small wellpoint dewatering systems
interesting civil engineering topics
civil engineering topics for presentation
civil seminar topics ppt
civil engineering seminar topics 2018
best seminar topics for civil engineering
seminar topics pdf
seminar topics for mechanical engineers
seminar topic for civil engineering pdf
The presentation illustrates a technique for ground improvement, Grouting. In India, grouting is still not being used very much. In this presentation, I have demonstrated the basic types of grouting, goals of ground improvement and two case studies of grouting.
Topics:
1. Types of Gravity Dam
2. Forces Acting on a Gravity Dam
3. Causes of failure of Gravity Dam
4. Elementary Profile of Gravity Dam
5. Practical Profile of Gravity Dam
6. Limiting height of Gravity Dam
7. Drainage and Inspection Galleries
Topics:
1. Reservoir Classification
2. Investigations
3. Selection of Site for Reservoir
4. Zones of Storage
5. Storage Capacity and Yield
6. Mass Inflow Curve & Demand Curve
7. Calculation of Reservoir Capacity
8. Reservoir Sedimentations
9. Life of Reservoir
10. Selection of Dam
DAMS
Types of dams
Selection of dam sites
Geological characters for investigation
Selection of the dam type
Gravity dams
butress dams
embankment dams
arch dams
cupola dams
composite dams
Bhakra Dam
Mir Alam multi-arch dam
Idukki Dam
Tehri Dam
Ujani Dam or bhima dam
A gravity dam is a solid structure, made of concrete or masonry, constructed across a river to create a reservoir on its
upstream. The section of the gravity dam is approximately triangular in shape, with its apex at its top and maximum width at bottom.
The section is so proportioned that it resists the various forces acting on it by its own weight. Most of the gravity dams are solid, so that
no bending stress is introduced at any point and hence, they are sometimes known as solid gravity dams to distinguish them from hollow
gravity dams in those hollow spaces are kept to reduce the weight. Early gravity dams were built of masonry, but now-a-days with
improved methods of construction, quality control and curing, concrete is most commonly used for the construction of modern gravity
dams.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
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Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
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Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
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Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
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Seminer ppt
1. SESMIC RESPONSE PREDICTION
OF CONCRETE ARCH DAM
Manish Sharma Dr. Md.Imteyaz Ansari
M.tech student Assistant Professor
Department of Civil Engineering
Jamia Millia Islamia (A Central University), New Delhi, India
110025
3. INTRODUCTION
❖ Dam is a solid barrier constructed at a
suitable location across a river valley to
store flowing water.
❖ A dam is a structure which prevents the
flow of water and accumulates it in a
reservoir.
❖ A barrier constructed across a waterway to
control the flow or raise the level of water.
4. PURPOSES
1. Flood control
2. Drinking and domestic water supply
3. Irrigation
4. Industrial water supply
5. Hydroelectric energy production
6. Retention and control of sediments
7. Inland navigation
8. Improvement of water quality
9. Fish Farming
10. Recreation facilities
5. ARCH DAM
❖ An arch dam is curved in plan, with its convexity towards the
upstream side. They transfers the water pressure and other forces
mainly
❖ An arch dam is quite suitable for narrow canyons with strong
flanks.
❖ The section of an arch dam is approximately triangular like a
gravity dam but the section is comparatively thinner.
❖ An arch dam is most suitable for narrow gorges.
❖ Since they are thinner than any other dam type, they require much
less construction material, making them economical and practical
in remote areas.
❖ The foundation or abutments for an arch dam must be very stable
and proportionate to the concrete. To the abutments by arch action.
8. CLASSIFICATION
Classified based on the ratio of the base
thickness to the structural height (b/h) as:
❖ Thin, -less than 0.2,
❖ Medium-thick, -between 0.2 and 0.3,
❖ Thick, -over 0.3.
Classified with respect to their structural height
are:[
❖ Low dams - up to 30
❖ Medium high dams - between 30–91 m
❖ High dams - over 91 m
9. There are two basic designs for an arch
dam: –
❖ Constant radius arch dams :- Radius of
curvature throughout the structure is constant
and upstream face is vertical.
❖ Variable-radius dams:- Which have both
upstream and downstream curves that
systematically decrease in radius below the
crest.
A dam that is double-curved in both its
horizontal and vertical planes may be called a
dome dam.
10. IDUKKI DAM, KERALA- FIRST ARCH DAM IN
INDIA
➢ Location:- Idukki, Kerala, India
➢ Purpose:- Power Generation, Flood Control
➢ Type of Dam:- Concrete, double curvature parabolic, thin arch.
➢ Height :- 168.91 m (554ft)
➢ Length :- 365.85 m (1,200ft)
➢ Dam volume:- 450,000 m3 (16,000,000cuft)
➢ Spillways:- Nil
➢ Reservoir Total capacity:- 1,996×106 m3 (1,618,184acre·ft)
➢ Active capacity :- 1,459×106 m3 (1,182,831acre·ft)
➢ Inactive capacity: - 536×106 m3 (434,542acre·ft)
➢ Catchment Area:- 649.3 km2 (251sqmi)
➢ Surface area :- 60 km2 (23sqmi)
➢ Normal elevation :- 732.62 km2 (283sqmi)
➢ Installed capacity:- 780 MW
12. DIFFERENT PARAMETERS TO BECONSIDERED IN THE
DYNAMIC ANALYSIS OF ARCH DAM:-
❖Semi- unbounded size of reservoir.
❖ Foundation rock domains.
❖ Dam-water interaction.
❖ Wave absorption at the reservoir boundary.
❖ Water compressibility.
❖ Dam-foundation rock interaction.
❖ Variations in ground motion at dam-rock
interface.
❖ Material non-linearity.
13. DAM WATER INTERACTION
❖ Hydro dynamic effects are generally
important in the response of arch dam so
more than for gravity dams.
❖ Tensile stress in dam due to upstream
ground motion are more than doubled when
hydro dynamics effect are included.
14. RESERVOIR BOUNDARY ABSORPTION
❖ Partial absorption of hydrodynamic pressure
waves by the sediments invariably deposited at
the reservoir bottom and sides, or even by rock
underlying the reservoir.
❖ In general, assuming a non absorptive (rigid)
reservoir boundary leads to an unrealistically
large response for dam with impounding water,
practically due to vertical and cross stream
ground motion.
15. WATER COMPRESSIBILITY
❖ Westegards classical formula for the added
hydrodynamic mass, commonly used in dynamics
analysis of dam.
❖ Water compressibility would be significant in the
response most concrete dams because ( Es) is
generally much higher and ( f res. / f dam) is
corresponding smaller.
16. DAM–FOUNDATION ROCK INTERACTION
❖ In standard FEM foundation rock is assumed to
be mass-less .
❖ In which only flexibility is considered but inertial
and damping effect are ignored, is popular
because the foundation impedance matrix
(Frequency –dependent stiffness matrix) is very
difficult to determine.
17. LITERATURE REVIEW
➢ Anil K.Chopra ,2008–identified the limitations of the traditional design
procedures, the factors that should be considered in the dynamic analysis
are discussed, and procedures for earthquake response history analysis
are summarized.
➢ M. A. Hariri-Ardebili et al,2011- Reservoir fluctuation effects on seismic
response of concrete arch dams are investigated. Structure nonlinearity is originated
from material nonlinearity due to tensile cracking and compression crushing of mass
concrete .
➢ Violeta Mircevska atal.,2014- The magnitudes of the hydrodynamic pressures at the
dam-fluid interface depend on the amount of energy transmitted to the fluid by the
vibration of the reservoir boundaries. Although the reservoir topology can have a
considerable impact on the amount of generated energy.
18. LITERATURE REVIEW
➢ Feng and Wei.et.al.,2014- A comparative study on the performance
and ultimate bearing capacity of dams. A set of safety factors was
presented with regard to dam heel cracks and the ultimate bearing
capacity of a high arch dam.
➢ Masterarbeit .,2016- Developed a software based calculation of the
3D coordinates of double curved arch dams . To calculate these 3D
coordinates, it is possible to determine the geometry of double curved
arch dams and modify it for optimization purposes.
➢ Gao lin and shichun chi.,2017 - feasibility study of vibration control
systems applied to massive structure, a 292m high arch dam was
carried out. Seismic analyses of the arch dam including nonlinear
behavior of joint movements demonstrate, that installation of
viscoelastic dampers in the contraction joints can reduce the maximum
tensile stresses at major part of the dam to a great extent.
20. REFERENCES
❖ Chopra, A. K., and Wang, J.-T. (2008). “Analysis and response of concrete arch
dams including dam-water foundation rock interaction to spatially varying
ground motions.”
❖ Varshney, R. S., Hydro Power Structures
❖ Wikipedia http://en.wikipedia.org/wiki/Dam
❖ http://www.idk.kerala.gov.in/index.php?option=com_content&view=article&id
=85 & Itemed=58
❖ Akköse, M., Bayraktar, A., and Dumanoğlu, A. A. (2016). “Reservoir water
level effects on nonlinear dynamic response of arch dams.” J. Fluids Struct.,
24(3), 418–435.
❖ M .A. Lotfollahi Yaghin and M.A. Hesari, “Dynamic Analysis of arch concrete
dam under Earthquake force with ABAQUS”, Journal of applied sciences
8:26482658,2008