The document discusses quality in construction and defines it as meeting or exceeding client specifications and requirements. It also discusses ensuring the intended purpose of facilities is fulfilled. Another section summarizes earthwork processes including excavating soil, transporting it, and compacting soil. Excavation methods like bulldozers, power shovels, scrapers, draglines, clamshells, and backhoes are described. Transportation by trucks, tippers, dumpers, conveyor belts, and graders is also covered. Compaction equipment like smooth wheel rollers, pneumatic tired rollers, sheep foot rollers, and vibratory rollers are mentioned.
the versatile machines excavators that make construction possible.pptxPasco jcb
they can be used for a wide variety of tasks, from digging to lifting to demolition. in fact, there are so many different types of excavators that it can be hard to know which one is right for the job. this blog by the experts of jcb excavators dealers look at the different types of excavators, their uses, and how to choose the right one for your needs.
what is earthwork? and what is earthwork equipment ?. types of earthwork equipment, tractor, motor grader, backhoe, dragline, clamshell, bulldozer and their applications.
the versatile machines excavators that make construction possible.pptxPasco jcb
they can be used for a wide variety of tasks, from digging to lifting to demolition. in fact, there are so many different types of excavators that it can be hard to know which one is right for the job. this blog by the experts of jcb excavators dealers look at the different types of excavators, their uses, and how to choose the right one for your needs.
what is earthwork? and what is earthwork equipment ?. types of earthwork equipment, tractor, motor grader, backhoe, dragline, clamshell, bulldozer and their applications.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
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.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
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.
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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
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.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
1. Quality in Construction
• Quality in construction is “conformity with which specifications are met” or defined as “meeting or
exceeding the requirement of client/owners”.
• Quality in construction is related to
• Satisfying the specification mentioned in the contract
• Completing the project time.
• Fulfilling the owner's requirement within budget
• Avoiding disputes claims and
• Ensuring the faculties performs its intended purpose.
• Quality of certain products in the construction industry such as tiles, brick, etc. can be partially related
with the general connotation of quality. Other aspect in quality has slightly different meaning at various
stages of life cycle of product such as at design stage or construction stage.
Source: NPTEl Lecture Notes from Course on “Construction Planning and Management, IIT Guwahati” by Prof. Arbind Kumar Singh
<https://nptel.ac.in/courses/105103093>
2. Earthwork
• Process of excavating the soil, transport to the other place and placing it is called Earthwork.
• Earthwork primarily involved the following process.
1. Excavation of soil or shifting of the soil.
2. Loading, transportation and unloading of soil.
3. Placing and compacting of the soil.
• Depending upon the quantity of work, site conditions, availability of resources these works are carried
out by various method and equipment.
3. Earthwork - Excavation
• Soils are required to be excavated at site for various purposes . Some of the purposes of soil
excavations are –
• Removal of soil to level the ground . Example , cutting of hill .
• For filling the ground at other places – making embankments .
• For making structures such as footing or laying pipes , etc.
• Depending on the type of soil, different techniques are used for the excavation of soil .
• In India , small earthwork excavation such as for building work, canal embankment, repair and
construction; excavation is carried out manually.
• For infrastructural project such as construction of road , dams , embankment for flood control and
irrigation , large volume of earthwork is involved . These constructions are carried out using large scale
(heavy) equipment. Some commonly used equipment for the excavation are –
Bulldozers | Power Shovels | Scrapers | Dragline | ClamShell | Backhoe
4. Earthwork – Excavation Equipment
• Bulldozers – A dozer which is popularly called bulldozer is a self-contained tractor power unit with a
blade attached to its front. The are used for pushing the materials , land clearing , striping , towing
other pieces of constructions, assisting in loading side hill cutting , backfilling & spreading, etc.
• The amount of material a dozer can move depends upon the size of the blade , that is the amount of
material that can remain in the blade.
• Dozers can be classified as: [1] Crawler type; and [2] Wheel type
• Dozers are generally used for haulage distances less than 50m.
5. Earthwork – Excavation Equipment
• Power shovels - Shovels (also called power shovels) are the hydraulic excavator. In the shovel, an
excavation bucket is attached to the hydraulically controlled broom & stick. The bucket moves in a
forward and upward direction . The bucket can be swung around depending upon the type of the
shovel and can load the soil in the truck.
• The shovels may be either crawler or rubber tire carrier mounted . A construction engineer needs to
enquire about the bucket capacity , cutting height , output , etc. to plan the construction work .
• Scrapers – Scrapers is a large steel bowel attached with the cutter at the bottom , which is molded on
the wheel. It is a multipurpose equipment which is used for excavation the soil , transporting it and
spreading it at the other place . The basic operating parts of the scrapers are bowl , apron, ejector .
• During excavation , the cutting edge is lowered to scrape the soil . the cutting edge is raised when the
bowl is filled . The material is spread after transporting a short distance . There are various types of
scrapers , such as pusher loaded , self loading , etc.
• Scrapers can be used for a haulage distance of 100m to 1500m . Scrapers are not suited for hard
rock, muddy soil and certain types of sands which does not pile up in the scrapers .
6. Earthwork – Excavation Equipment
• Backhoe – Backhoe is hydraulic excavator with a bucked attached to hydraulic controlled boom and
stick. In backhoe, excavation bucket moves in downward and backward direction during excavation .
The difference between power shovel and backhoe is the movement of bucket. Backhoe may be crawler
or rubber wheel mounted . Backhoe is more suited for the excavation below the ground , such as
excavation for basements in building construction or trenches for laying sewer lines .
• Dragline – In a dragline , a bucket is connected to a cable , which is attached to a long crane . The soil
is excavated by dragging this bucket against the soil to be excavated. In dragline, bucket falls under
the gravity load which loosens the soil . It is used for excavation as well as loading the material in the
truck. Dragline can also be used for underwater excavation.
• Clamshell – Like dragline, clamshell bucket is designed to excavate the soil in vertical direction The
bucked is like an inverted jaw, having a biting motion. Generally, it is used for excavating soft soil and
stockpiling it. The bucket can be opened and closed with the help of a cable or by hydraulic control. It
is designed in such away that it is half opened when dropped and gets closed when the bucket is
filled. It is often used in mining industry .
7. Earthwork – Transportation
• Some equipment used for (soil) excavation are also used for transporting soil over a distance. However,
many a time, soil needs to be transported to places (sites) which are not adjacent to the excavation
site. The equipment used for soil transportation are generally called haulers.
• Equipment used for transportation include - Trucks | Tippers | Dumpers | Belt Conveyers | Graders
• Trucks are used for small quality of earthwork which is loaded manually.
• Tippers generally unload by rear-tipping.
• Dumper is basically a truck with large size with self unloading mechanisms via hydraulic pump.
• Conveyers are used in the terrain where transportation is a problem .But it has larger installation cost
and generally is used in the place where large quantity of soil has to be hauled.
• Graders are wheel mounted tractor units used to spread, trim and level soil with very high precision.
This is widely used in road construction for leveling and maintaining the grade .
8. Earthwork – Compaction
• After excavated soil has been transported and spread at the desired places, it is compacted to obtain
the desired density. The optimum density is obtained for a certain moisture content of the soil.
Generally, the right amount of water is mixed before compaction of the soil.
• For different types of soil, different compaction equipment are used (a single equipment may not be
effective for all types of soil). These equipment provide: Pressure | Kneading | Vibration | Impact
• Some widely used compaction equipment are:
Smooth wheel roller | Pneumatic tired roller | Sheep foot roller
Vibratory roller equipment: Dropping weight type | Pulsating hydraulic type