This document provides an overview of rubber dams, including their construction, operation, uses, advantages, and future developments. Rubber dams are constructed from reinforced rubber membranes anchored to concrete foundations. They can be inflated or deflated to control water levels and are used for purposes like irrigation, water supply, flood control, and hydroelectric power generation. Advantages include lower costs than conventional dams and better control of water levels. The document discusses site selection, new types of rubber dams, examples of rubber dam projects internationally, and manufacturers. It concludes that rubber dams provide a flexible way to manage water resources.
One of the newest materials in the construction of water structures in recent years is the rubber material that is widely used in the construction of dams or short dams. In rubber dams, the remarkable flexibility of materials against external factors, compatible with the environment, simplicity of design, short time of building, safety and stability of these structures, such dams than rigid, simplicity and ease of use and ultimately reducing operating costs caused has been used in large and small water projects. Due to the limited information in the field of rubber dams, this article provides the possibility of rubber dams introducing, how to design, building and maintaining.
Here you will get all information about sewer design, its type & various tests carried out on it for any leakage or any obstruction present and of improper joints.
Reservoir Planning: Introduction; Investigations for reservoir planning; Selection of site for a reservoir; Zones of storage in a reservoir; Storage capacity and yield; Mass inflow curve and demand curve; Calculation of reservoir capacity for a specified yield from the mass inflow curve; Determination of safe yield from a reservoir of a given capacity; Sediment flow in streams; Life of reservoir; Reservoir sediment control; flood routing. Various types of Spillways and design.
One of the newest materials in the construction of water structures in recent years is the rubber material that is widely used in the construction of dams or short dams. In rubber dams, the remarkable flexibility of materials against external factors, compatible with the environment, simplicity of design, short time of building, safety and stability of these structures, such dams than rigid, simplicity and ease of use and ultimately reducing operating costs caused has been used in large and small water projects. Due to the limited information in the field of rubber dams, this article provides the possibility of rubber dams introducing, how to design, building and maintaining.
Here you will get all information about sewer design, its type & various tests carried out on it for any leakage or any obstruction present and of improper joints.
Reservoir Planning: Introduction; Investigations for reservoir planning; Selection of site for a reservoir; Zones of storage in a reservoir; Storage capacity and yield; Mass inflow curve and demand curve; Calculation of reservoir capacity for a specified yield from the mass inflow curve; Determination of safe yield from a reservoir of a given capacity; Sediment flow in streams; Life of reservoir; Reservoir sediment control; flood routing. Various types of Spillways and design.
Canal fall- necessity and location- types of falls- Cross regulator and
distributory head regulator- their functions, Silt control devices, Canal
escapes- types of escapes.
Hydraulic Design of Sewer:
Hydraulic formulae, maximum and minimum velocities in sewer, hydraulic
characteristics of circular sewer in running full and partial full conditions,
laying and testing of sewer, sewer appurtenances and network.
Canal lining is the process of reducing seepage loss of irrigation water by adding an impermeable layer to the edges of the trench. Seepage can result in losses of 30 to 50 percent of irrigation water from canals, so adding lining can make irrigation systems more efficient. Canal linings are also used to prevent weed growth, which can spread throughout an irrigation system and reduce water flow. Lining a canal can also prevent waterlogging around low-lying areas of the canal. By making a canal less permeable, the water velocity increases resulting in a greater overall discharge. Increased velocity also reduces the amount of evaporation and silting that occurs, making the canal more efficient.
Get PPT here
https://civilinsider.com/design-philosophies-of-rcc-structure/
www.civilinsider .com
www.civilinsider .com
www.civilinsider .com
www.civilinsider .com
Various design philosophies have been invented in the different parts of the world to design RCC structures. In 1900 theory by Coignet and Tedesco was accepted and codified as Working Stress Method. The Working Stress Method was in use for several years until the revision of IS 456 in 2000.
What are the Various Design Philosophies?
Working Stress Method
limit state method
ultimate load method
#civil insider
CASE STUDY ON CRACKS AND ITS REMEDIAL MEASURESPrabhu Saran
this project is about the buildings cracks and its repair techniques.
most common methods adopted in this project.
ppt created with office'13... make it useful for ur work.
Canal fall- necessity and location- types of falls- Cross regulator and
distributory head regulator- their functions, Silt control devices, Canal
escapes- types of escapes.
Hydraulic Design of Sewer:
Hydraulic formulae, maximum and minimum velocities in sewer, hydraulic
characteristics of circular sewer in running full and partial full conditions,
laying and testing of sewer, sewer appurtenances and network.
Canal lining is the process of reducing seepage loss of irrigation water by adding an impermeable layer to the edges of the trench. Seepage can result in losses of 30 to 50 percent of irrigation water from canals, so adding lining can make irrigation systems more efficient. Canal linings are also used to prevent weed growth, which can spread throughout an irrigation system and reduce water flow. Lining a canal can also prevent waterlogging around low-lying areas of the canal. By making a canal less permeable, the water velocity increases resulting in a greater overall discharge. Increased velocity also reduces the amount of evaporation and silting that occurs, making the canal more efficient.
Get PPT here
https://civilinsider.com/design-philosophies-of-rcc-structure/
www.civilinsider .com
www.civilinsider .com
www.civilinsider .com
www.civilinsider .com
Various design philosophies have been invented in the different parts of the world to design RCC structures. In 1900 theory by Coignet and Tedesco was accepted and codified as Working Stress Method. The Working Stress Method was in use for several years until the revision of IS 456 in 2000.
What are the Various Design Philosophies?
Working Stress Method
limit state method
ultimate load method
#civil insider
CASE STUDY ON CRACKS AND ITS REMEDIAL MEASURESPrabhu Saran
this project is about the buildings cracks and its repair techniques.
most common methods adopted in this project.
ppt created with office'13... make it useful for ur work.
Efficient Use of Rain Water by Altering Channel Systemtheijes
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.
Advances in Hydraulic Structures, Rubber Dam-A way forwardIEI GSC
Presentation on Advances in Hydraulic Structures, Rubber Dam-A way forward by Dr I Satyanarayan Raju, Former Chief Engineers, CDO, GOAP at #33NCCE 33rd National Convention of Civil Engineers at #IEIGSC
This slideshow gives information about the variety of options studied by Gannett Fleming on the dam technology choices for Tempe Town Lake. More information can be found at www.tempe.gov/lake and click on Dam Replacement in the blue box in the upper right hand corner of the webpage.
"This brand new Powerpoint Presentation details the types, benefits, and applications of the Smith Drainage Systems Trench Drains. This overview of the product line is an excellent resource tool for anyone interested in our trench drains."
Summer internship Project on Sangam barrage working procedure,PANEM SRINIVASULU
I have completed my summer internship course in sangam which is located in nellore district ,new barrage is proposed due to old one is aged,every year needs to replace sand bags to rise the water level.
Jay R. Smith Mfg. Co. offers a full line of trench drain products covering a broad scope of manufacturing, processing, commercial, industrial and residential applications. The Enviro-Flo® Trench Drain Series, Figure Numbers 9930 and 9931, is made from 100% polypropylene, making it light weight, durable and easy to install. The Enviro-Flo® system can consist of 15 sloped and 15 neutral channels for any configuration. The Smith/ACO Trench Drain Series, Figure Numbers 9810 through 9860, is made from precast polymer concrete and fiberglass. The Smith/ACO system is sloped with a radiused bottom. The smooth, uniform interior of these channels offers maximum hydraulic performance. Jay R. Smith Mfg. Co. Drainage Systems includes a wide variety of grate types and materials to meet all installation requirements.
For more information, please visit www.jrsmith.com
Padma Multipurpose Bridge Project ,the bridge of Bangladesh.It is one of the largest bridge in the world .For implementation this project a group of renowned specialists engineer work together.it is the most challenging infrastructure in the world .This is the bridge that is pride of Bangladesh.
Renewable Energy Based Floating Power Generator (Rivers and Canals)IJERA Editor
We have developed a stand alone, (river and canal water stream) floating power generator system for village
electrification, agriculture water pumping, bridge street lights and such other utilities. The system is the unique
one of its kind as per our knowledge and various surveys. The physical structure of the system is made of the
non corrosive and unbreakable materials like mild steel, fiber glass etc. It works, as it rotates in the water flow.
It does not require any kind of the external electric grid power for its working. As the water flows, the specially
designed blades of the system rotate in the direction of the flow and ultimately the consistent power is
generated, this power can be used directly or it may be stored in battery and the utilized as and when required.
No permanent installation, No pollution and environment friendly floating Pico turbine. The observations taken
from the sight are tabulated and accordingly results are discussed.
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.
Lecture 3 (quality of design and quality of conformance)RAJ BAIRWA
in this lecture i will discuss the quality of design and quality of conformance concept. it is very important in term of quality management and quality control purpose in any industrial applications.
Lecture 2 (quality methodology and quality control)RAJ BAIRWA
in this lecture i will discuss the quality methodology and quality control concept. it is very important in term of quality management and quality control purpose in any industrial applications.
in this lecture i will discuss the basic concept of quality . it is very important in term of quality management and quality control purpose in any industrial applications.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. •
Advantages of Rubber dam.
What is rubber dam
Construction of Rubber dam
Operation mechanism(Automatic control mechanism)
Use of a rubber dam in hydropower plant
Selection of a Rubber dam site
New types of rubber dams
Rubber dam: New hope for farmers?
Rubber Dam Applications
Rubber dam manufacturers
Future plan of work in India
Conclusion
References
3.
Easy installation
Lower investment cost ( about 40%) than
the conventional gated regulating
structure
Ground re-charging
4733
Increase of per capita water storage
capacity and water use efficiency
Other purposes: irrigation, water supply,
power generation, tidal barrier ,environmental improvement.
Russia
China
1964
1111
207
6103
India’s per capita water storage
Better control of flood and draught.
Australia
India
USA
4.
Basically rubber dams are fabric reinforced rubber bags, which can be
inflated or deflated by water or air. The fabric gives the necessary
strength where as rubber acts as a shock absorber and water proofing
material.
•
It function as a reliable crest-adjustable water gate.
Construction of Rubber dam
Concrete base slab & side walls
Anchorage
Dam bag /Membrane
Water or air filling & draining system/Control system
6. Concrete Base Slab:
Concrete slab is provided as a
base for rubber construction.
The side walls of the dam
should be vertical or inclined
Anchorage:
Dams are secured to the
concrete foundations using a
single or dual core clamping
plates
Plates are clamped to the
membrane using anchor bolts
7. Dam bag /Membrane:
The rubber dam body is a membrane of rubberized fabric, which is
composed of layers of synthetic rubber and layers of synthetic fiber
reinforcement that are firmly bonded together by vulcanization.
Physical-mechanical properties of the dam membrane are given by
tensile strength
elasticity and flexibility
ozone-resistance
high-temperature and low-temperature resistance
abrasion-resistance
weather-resistance
specific life strength
8. Inflation:
An air blower or water pump and
ancillary devices such as valves are
used to inflate the air or water filled
dam respectively.
Deflation:
There are three types of deflation
systems: bucket, float, and
electrical.
Safety systems:
An air blow-off tank(air-filled dam)
and siphon pipe(water-filled dam)
can be used as a safety device in
case principal deflation mechanism
fails
9.
A pressure sensor is used to
monitor the inner pressure of
the dam body.
The inlet of air/water to the
dam
body
is
cut
off
automatically
when
inner
pressure reaches the preset
level.
A laser height measuring
device can be installed inside
the dam body.
A sensor monitors water level.
The exhaust valve is opened
automatically as deflation
level is reached.
11. Water filled rubber dam:
Air filled rubber dam:
Advantages
The weight of the water-filled dam
prevents vibrations.
The entire height of the dam rises or
lowers evenly.
Weaknesses
More expensive construction: a
wider concrete sill, more expensive
water pumps, more expensive
pipelines due to a bigger diameter
of pipes.
Manipulation takes more time (filling
up and emptying the weir).
Freezing of the weir (the possibility
of water freezing in the system).
Vandalism (puncturing, cutting).
Advantages
Faster lowering and raising of the weir.
Cheaper construction.
Lower power consumption.
Weaknesses
Vibrations of the weir.
Uneven emptying of the weir (sinking
of the centre of the weir).
Vandalism (puncturing, cutting).
12. Measures to reduce vibration
› Fin structure
› Semi-circle shape
› Double-line anchoring
› Hose Spacers
13.
In the site selection following condi
-tions should be considered:
Straight section
Smooth Flow
Riverbed and Bank slopes are stable.
Geological
Hydrologic
Meteorological
hydraulic conditions
•
It is better to carry out the construction of
civil works related to the rubber dam in a
dry season
14. Power of a hydroelectric power plant depends also on the speed of the river
and that the power expressed in percentage increases more at the rivers
where the fall is smaller.
The percentage of the increase of the power is calculated in the following
way:
%P = the percentage of the increase of power in a hydroelectric plant
h2 = the height of the increase of the fall in a hydroelectric power plant
h1 = the initial height of the fall in a hydroelectric power plant
15. Tin Shui Wai Rubber Dam Hong Kong
Janjhavathi Rubber Dam (India)
irrigates 24,000 acres
Rubber weirs at the river Sava in Kranj
Rubber Dam ,Bhubaneshwar,
Orissa
16.
Rubber dam with inspection gallery: Some large dams of Bridgestone and
Sumitomo have an inspection gallery . An access door and air-lock system
are provided to allow entry into the dam when its in the inflated mode.
Rubber dams with different deflation modes: New types can deflate in both
the upstream and downstream directions according to the direction of flow
or deflate directly onto the foundation.
Innovative fish-way: The rubber dam can be incorporated into a fish-way.
17.
Impact of Rubber Dam on crop
productivity
of
summer
vegetables at Baghamari,Orissa.
S.NO.
Productivity(t/ha)
Before
Installation
of Rubber
Dam(2009)
1.
After
installation of
Rubber Dam
(2010 )
2.873
4.67
18. HYDRO POWER Project: Rainbow Dam
Country: USA Size: 3.66Hx67.7L
WATER SUPPLY Project : Gubeng Dam
Country : Indonesia Size : 2.85Hx12.0L
GROUND RECHARGING Project : Alameda
Country : USA Size : 3.96Hx88.8L
TIDAL BARRIER Project : Naruse River
Country : Japan Size : 2.3Hx42.1L
19. Purpose
Dam/Project Name
Country
Height (m)
Width (m)
Groundwater
recharge
Sonoma Dam
USA
3.3
36.9
Hydropower
Glenford dam
Canada
1.7
74.7
Irrigation
Lamchi Muang Ling
Dam
Thailand
4
73
Increasing reservoir
capacity
Mirani Weir
Australia
1.8
107.3
Navigation
Tsudae Dam
Japan
1.5
20
Recreation
Shin Chon Dam
Korea
1.5
50.65
Rehabilitation
Vaca Dam
Philippines
2.0
13.3
Drinking water
Altoona Dam
USA
1.53
35.7
Flow control
(sewerage)
Ichioka Sewerage Plant
Japan
1.1
6.5
Flood control
Shing Chu River Dam
Taiwan,
China
1.6
8
Tidal barrier
Naruse River
Japan
2.3
42.1
20. Trelleborg Queensland Rubber
(Australia)
http://www.trelleborgqr.com
Satujo (France)
http://www.satujo.com/english/sommairea.
htm
Bridgestone (Japan)
http://www.bridgestoneengprod.com/
Rubena (Czech)
http://www.rubena.cgs.cz/english/rubena.ht
ml
Hydroconstruct (Austria)
http://www.hydroconstruct.at/e_start.htm
Superior Dam LLC (USA)
http://www.superiordam.com/index.html
Qingdao Hua Chen Industrial
Technology Co.(China)
Indian Rubber Manufacturers
Research Association (India)
http://www.huachenrubber.com
Thane, Maharastra
21.
Gujarat's first rubber dam to be built over Tapi at Rundh.
8, 2010, 10.40pm IST
Expert team inspects site for rubber dam in Pampa River.
2007.
Source: The times of India, Surat. Jun
Source: The Hindu Kerala.July 28,
First rubber dam in India is being built in Andhra Pradesh, over the Janjhavathi
river in Vizianagaram district.
SEVERAL STATES including Jharkhand and West Bengal, have shown interest in
rubber dams. Jharkhand Water Resources Department officials said that they
have approached Hydroconstruct to build a dam. Source: Tehelka.com August 28, 2010, Issue
34 Volume 7.
Installation and evaluation of Rubber Dams at various watersheds at
Bhubaneshwar, Orissa.
The steel industrial kerala limited a public sector company, has entered into an
agreement with an australian firm(hydro construct) for the construction of
rubber dams in kerala. Source: The times of India, Thiruvananthapuram. Mar 3, 2002, 11.40pm IST
Many more……
22. A flexible way to manage water?
Hi-tech rubber dams could be the
answer.
23.
•
P. Roy Choudhury, S. K. Chakraborty, Manasi Nath, “Rubber Dam a novel
approach for control of water flow in watershed management for
agricultural growth of India” published in Rubber India, vol LX, No 8, pg 49,
August 2008
http://www.hydroconstruct.at/
Bridgestone Corporation. 1997. Rubber dam: inflatable rubber weir. Tokyo,
Japan.
P. Roy Choudhury, Manasi Nath, Bhagabat Bhuyan “ Design and
Development of Rubber Dam – a farmer friendly Rubber reservoir”, published
in Rubber Chem Review, vol XXXVII No 6, pg 29, July- August 2008.
X Q Zhang, P W.M Tam, W Zheng ,Construction, operation and maintenance
of rubber dams , Canadian Journal of Civil Engineering Volume 29, Number
3, June 2002.
Karl-Heinz John, Michael Tiegelkamp, IEC 61131-3:Programming Industrial
Automation Systems, Springer.