Prestressed concrete ,post tensioning ,pre tensioning, where normal concrete can not be used and need of more strength is required this type of concrete are used. Metal bars are replaced by the tendoms which are generally used to create tension in concrete. So because of that beam bends in upward direction and when load is applied it come in normal conditon.
Pile foundation are essential in case where SBC is low or the load coming from superstructure is too heavy,
Topics covered includes Materials used for making piles, Type of piles, load transfer mechanism, factors affecting selection of piles, Installation methods, load carrying capacity of piles, different load tests performed and the behavior of piles as a group.
Prestressed concrete ,post tensioning ,pre tensioning, where normal concrete can not be used and need of more strength is required this type of concrete are used. Metal bars are replaced by the tendoms which are generally used to create tension in concrete. So because of that beam bends in upward direction and when load is applied it come in normal conditon.
Pile foundation are essential in case where SBC is low or the load coming from superstructure is too heavy,
Topics covered includes Materials used for making piles, Type of piles, load transfer mechanism, factors affecting selection of piles, Installation methods, load carrying capacity of piles, different load tests performed and the behavior of piles as a group.
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
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Sheet Piles; Advantages, Types and Methods - Sheet piles are commonly used for retaining walls, land reclamation, underground structures such as car parks and basements, in marine locations for riverbank protection, seawalls, cofferdams, and so on
Shuttering in concrete construction is used as a mould for a structure in which fresh concrete is poured to harden subsequently curing
It is a part of formwork, or you may call it as derivative of formwork. Shuttering is a vertical temporary arrangement which is arranged to bring concrete in a desired shape.orFormwork which supports vertical arrangement is known as shuttering.
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
Sheet Piles; Advantages, Types and Methods - Sheet piles are commonly used for retaining walls, land reclamation, underground structures such as car parks and basements, in marine locations for riverbank protection, seawalls, cofferdams, and so on
Shuttering in concrete construction is used as a mould for a structure in which fresh concrete is poured to harden subsequently curing
It is a part of formwork, or you may call it as derivative of formwork. Shuttering is a vertical temporary arrangement which is arranged to bring concrete in a desired shape.orFormwork which supports vertical arrangement is known as shuttering.
Dewatering is a term to describe the removal of groundwater or surface water from for example a construction site. In construction the water is pumped from wells or sumps to temporarily lower the groundwater levels, to allow excavation in dry and stable conditions below natural groundwater level.
dewatering in different soil conditions, methods, explanation of dewatering methods, : open sumps & ditches, vaccumm method deppwell point method electro osmosis metheod
EXCAVATION FOR FOUNDATION - Methods & Temporary Earth Retaining StructuresShivananda Roy
Generally excavation means to loosen and take out materials leaving space above or below ground. Sometimes in civil engineering term earthwork is used which include back-filling with new or original materials to voids, spreading and leveling over an area.
The underwater concreting techniques designed mostly to prevent cement washout. These methods did not obtain the full purpose of avoiding cement wash out at early stages of using under water concreting apart from cases where large masses of concreting were employed.
A Stress Ribbon Bridge is a tension structure (similar in many ways to a simple suspension bridge). The suspension cables are embedded in the deck which follows a catenary arc between supports.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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.
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.
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
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
2. Dewatering methods
• Many excavations for basement construction will encounter groundwater.
• If not suitably managed and controlled, groundwater can cause problems
for excavation and basement construction.
• Adequate control of groundwater is important, and is a necessary part of a
well planned basement construction project.
• Groundwater control methods are classified into two main types:
Exclusion or Pumping.
3. GROUNDWATER PROBLEMS WHEN
CONSTRUCTING BASEMENTS
• If an excavation is made without suitable groundwater control various
problems can result:
• The excavation may flood as a result of groundwater inflows from water-bearing layers of
soil or rocks.
• High pore water pressures in batter slopes at the sides of the excavation may lead to
instability or seepage erosion of batter slopes.
• Groundwater uplift pressures beneath the floor of an excavation can give the risk of a
base heave or piping failure in the base of the excavation.
• Groundwater pressures can cause excessive hydrostatic loads on excavation retaining
structures such as concrete pile walls.
4. GROUNDWATER CONTROL BY EXCLUSION…
• Groundwater pumping can be reduced or avoided by installing a very low permeability
physical cut-off wall to exclude groundwater from the excavation. If a low permeability
stratum (such as a clay layer) exists at shallow depth beneath the excavation then the cut-
off wall can penetrate down to that stratum to create a full cut-off.
• Several different geotechnical methods can be used to form cut-off walls:
• Steel sheet piles
• Concrete secant pile walls
• Concrete diaphragm walls
• Slurry walls and trenches
• Grout curtains (including permeation grouting and jet grouting)
• Freeze walls (produced by artificial ground freezing)
• Compressed air (for tunnels and shafts).
• Concrete contiguous pile walls leave a gap between the piles and do not form an effective cut-off to
groundwater flow.
5. … GROUNDWATER CONTROL BY EXCLUSION
• Groundwater control by exclusion is
widely used in situations when there is a
risk of external impacts (e.g. settlement
of nearby structures or detrimental
effects on other water users) caused by
groundwater lowering.
• An exclusion system can, if carried out
effectively and if ground conditions are
favorable, minimize any groundwater
lowering outside the dewatered site area.
6. GROUNDWATER CONTROL BY PUMPING…
• Groundwater control by pumping
involves pumping groundwater from an
array of wells or sumps with the aim of
temporarily lowering groundwater levels
to allow excavation to be carried out in
dry and stable conditions.
• Groundwater control by pumping is also
known as Groundwater Lowering,
Construction Dewatering or simply
Dewatering
7. …GROUNDWATER CONTROL BY PUMPING
• The most common types of groundwater control by pumping are listed
below
• Well points
• Shallow suction wells
• Relief wells
• Deep wells
• Eductor wells
• On a given site these techniques are not readily interchangeable. Each
technique has a relatively narrow range of application relative to two key
parameters: the drawdown required and soil permeability.
8. Well Point Dewatering System…
• A well point dewatering system consists of a series of
shallow wells, known as well points, which are
installed at a pre-determined depth and appropriate
spacing around an excavation.
• The well points are connected to the surface, via a
riser pipe, and in turn, connected to a common
header main pipe through a flex bow.
• This flex bow incorporates an adjustable push fit valve
which allows the control of air and water entering the
system, known as trimming, to give a clear view of
what is being pumped.
• The header main pipe is connected to a well point
dewatering pump and then discharged to the
designated point.
9. …Well Point Dewatering System
• Well point Dewatering Systems are
extremely versatile and can be used for a
wide range of applications.
• They can be used to lower and control
groundwater levels in excavations, in
order to create a dry and stable working
environment, and are also suitable for
shallow foundations and trench works.
10. Water Proofing methods
• The application of a layer of impervious material which prevents water from
penetrating. Making the structure waterproof or water-resistant so that it
remains relatively unaffected by water or resisting the ingress of water.
• Waterproofing in building structures is required at various locations -
• Basement of the building, which is directly in contact with the earth surface. This area is
very much prone to seepage from the surrounding to the building structure.
• Kitchen, Toilet and Bathroom, this is the place where water is continuously used for utility
purpose and bathing. Always critical location for seepage.
• Balcony areas, at this location water enter in monsoon season, or washing of cloths and
other utility works.
• Roof /Terrace/Podium of the building is always open for monsoons and other seepage.
• Swimming Pool, it is filled with water and had major chances of leakage.
• Water Tank, any leakge in tank can damage the terrace and seep into our rooms.
11. Waterproofing Methods…
• Cementitious Waterproofing
• This method is very commonly used for wet areas such as toilets and bathrooms. This is a semi-flexible or rigid type of
waterproofing and not exposed to weathering or sunlight. Tape Crete material is commonly used for waterproofing and easy to
apply.
• Brick Bat Coba Waterproofing
• Laying of soaked brick bats (Pieces) over fresh mortar, which acts as a insulation for thermal comfort . Surface brick layer
thickness in between 70mm to 150 mm (Avg. thickness of 110mm) .
• Bituminous Waterproofing
• This method is basically coating of a flexible asphalt layer or in general practice we call it coal-tar.
• Injection Grouting
• A low viscous injection resin for water proofing application in low to medium infiltration. It can be used in bricks, concrete and
other structures, as basement, tunnels etc.,
• Membrane Type Waterproofing
• There are two methods , one is Torch seal and other is Self-adhesive membrane waterproofing. Torch seal is used for podium,
external development etc., and woks at site. This is very common method used for waterproofing at site. It is more durable and
cost effective method compared to Self – adhesive membrane.
12. Waterproofing Methods
• Polyurethane Liquid Membrane Method
• This is expensive method and less used at site. It is very flexible membrane carefully applied to avoid
peeling after some time. Used for roof /terrace and the areas exposed to weathering.
• EPDM Waterproofing Membrane
• It is synthetic rubber single layer flexible membrane, durable in cold and hot weather.
• Liquid Roofing with bitumen membrane coating
• Excellent adhesion to all kind of surfaces (metal, concrete etc.,) and chemical resistant. It saves time and
spray application allows seamless coverage and long lasting waterproofing solution. Rapid curing even in
winter weather.
• Waterproofing Products
• Tape Crete, APP membrane, Epoxy and PU Resin, Nitobond, EPDM membrane, Pidicrete URP ,Dr Fixit 101
LW+, Dr Fixit Roofseal , AcryFlex 2k strong etc.,
• Waterproofing Brands
• CICO, Sika, Fosroc, Dr. Fixit, Redwop, MYK Schomburg , Chowgule etc.,
13. Pumps
• A pump is a device that moves fluids, by mechanical action.
• Pumps can be classified into three major groups according to the method they use to
move the fluid: direct lift, displacement, and gravity pumps.
• Pumps operate by some mechanism (typically reciprocating or rotary), and consume
energy to perform mechanical work moving the fluid.
• Mechanical pumps serve in a wide range of applications such as pumping water from
wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling
and fuel injection, in the energy industry for pumping oil and natural gas or for operating
cooling towers and other components of heating, ventilation and air conditioning systems
• When a casing contains only one revolving impeller, it is called a single-stage pump. When
a casing contains two or more revolving impellers, it is called a double- or multi-stage
pump.
14. Types of pump
• Centrifugal pumps
Centrifugal pumps contain a rotating impeller
which creates a vortex that sucks air out of the
hose. Water rises to the pump as a result of
atmospheric pressure.
Priming involves filling the pump casing with liquid
before the pump is started. This is done to prevent
the casing becoming filled with gases that inhibit
pumping.
• Displacement pumps
Displacement pumps can be either
reciprocating or diaphragm pumps.
Reciprocating pumps work by the action of a
piston or ram moving in a cylinder. Water is
drawn into the cylinder when the piston moves
in one direction, and pushed out at the rear.
These have high efficiency and reliability, and
are able to pump against varying heads at a
uniform rate.
Diaphragm pumps work by drawing water into
a cylinder in which a flexible diaphragm is
raised and lowered. The downward motion of
the diaphragm pushes the water out through
the delivery pipe.
15. Types of pump
• Submersible pumps
Submersible pumps can be used for lowering groundwater
or removing water from a deep sump. The pump unit is
suspended from the rising main or, if a flexible hose is
used, from a wire cable.
The pump consists of a centrifugal unit and motor
mounted in a single cylindrical unit with a space between
pump and casing which allows the water to move upwards
to the rising main.
• Air lift pumps
Air lift pumps consist, not of moving
parts, but of a long vertical pipe
connected to a supply of compressed
air. The air carries the water up the
pipe to the discharge area.
16. This is the last page
Thank You
RISE & BELIEVE…