PR Abhi Comp Reseed Final

8/6/2019 PR Abhi Comp Reseed Final

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A Report on

Summer TrainingIn

A new city taking its root

NAYA RAIPUR

By:

ABHISHEK SHARMA

Enrol No. A2315808027

Class: 7 CE 1

Course : B.Tech (Civil)

Batch: 20 08-12

Amity School of Engineering and Technology


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ACKNOWLEDGEMENT

At the very outset, I would like to express my deepest gratitude to Mrs N B

MISHRA, lecturer, civil department, Amity University for the encouragement and

guidelines for this field study. I take this opportunity to express my gratitude to the

people who have been instrumental in the successful completion of the project.

I would like to show my greatest thankfulness by heart to honourable Shri

S.S. Bajaj, IFS, CEO NRDA, Shri S.R. Sriwastava Chief Engineer NRDA, Shri V.K.

Ratre Executive Engineer NRDA, & Shri S.K. Nag Consultant Engineer NRDA,, who

gave me the opportunity for field experience and guided me as and when required.

I cant say thank you enough for their tremendous support and help. Without their

encouragement and guidelines this project would not have materialized.

The guidance and support received from the members of the site including

Mr Satwant Singh (guide), Mr Shrinivas (engineer), Mr Rajesh kuril (Engineer)

Mr Kamlesh kr Tiwari (surveyor), & Mr Shabhu Rao (Civil Foreman) who

contributed there precious time to this project, was vital for the success of the

project. I am grateful for their constant support and help.

Last but not the least I am also thankful to all those who have directly or

indirectly rendered help in completion of the Field study.

ABHISHEK SHARMA

Enrol No. A2315808027

Class: 7 CE 1

Course : B.Tech (Civil)

Batch: 20 08-12


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CONTENT

S.No. Title Page No.

1 Chapter-I A New City Taking its Root (Naya Raipur) 4-9

1.1 A New City Taking its Root (Naya Raipur) 4-5

1.2 Mission and Vision ( Naya Raipur ) 5

1.3 Vision for Development ( Naya Raipur ) 5

1.4 Location & Land use Plan 6-7

1.5 Major Component 7-8

1.6 Special Features 8-9

1.7 Phases of Development 9

2 Chapter II Study & Training on Running Components 10-46

2.1 Construction OF Road 10-20A Procedures 12-17

B Study of Different Cross Section Maps 17-20

2.2 Capitol Complex 21-39

A Concrete Block 22

B Artificial Lake 22-23

C Lobby 24

D Slab 25

E Shuttering in Canopy 26

F Canopy for Lobby 1 27

G Lobby 3 28H Lobby4 28

I Water Harvesting System 29-32

J Slab in Mantralaya 33

K Column 34

L Beam 34

M Thermal Energy Storage System 35-36

N Air Handling Unit 36

O Screen Wall 37

P Pargola 38

Q Minister Block 39

2.3 Water Supply System 40-46

A Raw water pumping 40

B MS Pipe 41

C Intake Well 42

D Master Balancing Reservoir 43

E Schematic layout of Water Treatment Plant 44

F The Water Treatment Process 45

G Construction of Clariflocculator 46

3 Reference 47

4 Industry guide 48


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CHAPTER I

A NEW CITY TAKING ITS ROOT

(Naya Raipur)

After formation of new state Chhattisgarh in the year 2000, the state

government has decided to create a well planned new city for Raipur. Hence Special

area has been notified under section 64 of Nagar Tatha Gramnivesh Adhiniyam

1973. The authority thus formed is named Capital Area Development Authority

(CADA) which is now called as Naya Raipur Development Authority(NRDA). NRDA

is the nodal agency undertaking comprehensive development of this Greenfield City.

Naya Raipur Development Authority (NRDA) is a special area development

authority established by GoCG under the Chhattisgarh Nagar Tatha Gram Nivesh

Adhiniyam, 1973 for development and administration of Naya Raipur. The authority

has Chairman, CEO and other members. Chief Executive officers appointed by

government and other officers and staff working under NRDA organization.

As part of development activities, NRDA is developing and shall develop

infrastructure, utility and social projects by various procurement methods such asPublic Private Partnership framework, Engineering procurement contracts Percent

Rate/ Item Rate/ lump sum contract etc, depending on the nature of projects

Naya Raipur has been included in the Jawahar Lal Nehru Urban Renewal

Mission (JnNURM) as a Mission City with the city of Raipur. The City Development

Plan (CDP) of Naya Raipur has been approved for Rs 749.52 crores. As a

mandatory requirement of JnNURM, NRDA has agreed to implement Urban Reform

Agenda set out in the "Checklist of the Urban Reforms" under JnNURM within the

mission period. The implementation of urban reforms require drafting of policy

frameworks, rules, bye laws, manuals, guidelines etc and preparation of GIS/IT

databases for various reforms and their implementation. The guidelines of JnNURM

require submission of progress Reports and other documents related to the

implementation of projects and Urban Reforms at given intervals.

Naya Raipur has also been selected as a demonstration city under the Global

Environmental Facility (GEF)/ World Bank assisted Sustainable Urban Transport


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Project (SUTP) being implemented by Government of India. The DPR submitted to

the Government of India is expected to be approved soon. The project is required to

be implemented in compliance with the Finance Management Manual and

Operations Manual of SUTP.

MISION AND VISION ( Naya Raipur )

'NAYA RAIPUR' would at once serve as the Administrative Capital of the

State and also cater to the infrastructural needs of industry and trade in the

region.

"NAYA RAIPUR is envisioned to serve as an engine of growth for the state of

Chhattisgarh. It will be a magnet for the investments into the state"

NAYA RAIPUR with high quality of its infrastructure, economic, social, cultural

and technical, would ensure high quality of life for its citizens.

'NAYA RAIPUR' will become a model and a source of inspiration for city

planners, architects, builders and policy makers anywhere in the world.

VISION FOR DEVELOPMENT ( Naya Raipur )

'NAYA RAIPUR' would be a 'green city' in every sense of the term. Large

areas would be brought under tree plantation - Arrangements for water

conservation and waste water recycling - Use of non-conventional energyresources to the maximum.

'NAYA RAIPUR' would reflect the rich heritage and culture of Chhattisgarh

and India, in its urban design and architecture. Special efforts would be taken

to make it a people friendly and visitor friendly city.

City design would promote sense of security and comfort among its citizens,

especially women, children and the physically challenged.


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LOCATION & LAND USE PLAN

Naya Raipur is the upcoming Capital of Chhattisgarh being built at 17 km

aerial distance in the South-East direction from the existing capital Raipur. 'Naya

Raipur' would at once serve as the administrative capital of the State and also caterto the infrastructural needs of industry and trade in the region.

The new city is about 8 km from Raipur Mana Airport and is in between two

national highwaysNH6 and NH 43. Naya Raipur spreads over an area of about

8000 hectares. It includes 41 villages out of which 27 villages form the core of the

Naya Raipur. The population of just 1 village i.e. Rakhi is getting displaced in the

development of Naya Raipur. About half of the total acquired land is being used for

afforestation, roads, parks, public conveniences, water facilities-canals, green belts

etc. 23 percent of the land is reserved for educational institutions, government officesand public auditoriums etc. 30 percent of the land will be used for residential and

commercial purposes.

The land use plan is as under;
http://en.wikipedia.org/wiki/Chhattisgarhhttp://en.wikipedia.org/wiki/Chhattisgarh


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Naya Raipur would be fourth planned capital city

after Gandhinagar, Chandigarh and Bhubaneshwar. Out of 8000 ha. Green area

location within city limits in different forms is planned as given below;

The project is likely to cost anywhere between Rs 1,500 and 2,000 crore. The

city is expected to house about 4.5 lakh people within a decade and provisions, in

the form of future infrastructure upgradation, have been made for its expansion.

MAJOR COMPONENT

Capital Complex to serve as Administrative capital of Chhattisgarh.

New Mantralaya (State Secretariat) and Offices of Heads of Department to

come up in the Capital Complex.

Residential Colonies (A Township having 2600 housing units is being

developed by Chhattisgarh Housing Board, near Capital Complex at sector 27

on 62 Ha. of land. Institutional Area.

Gems & Jewellery Park.

Sports Complex.

Central Business district.

Logistics Hub.

Software Technology Park.

Park for light Industry. City Park.
http://en.wikipedia.org/wiki/Bhubaneshwarhttp://en.wikipedia.org/wiki/Bhubaneshwar


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Raj Bhawan and residences of Ministers to come up in the second phase

close to the Capital complex.

The State Vidhan Sabha (Legislative Assembly) to come up in the capital

complex in the second phase

The development of the city is going on, following map shows Completed

Projects in Green Colour, Running Projects in Blue Colour and Red Colour denotes

projects in pipe line.

SPECIAL FEATURES

Rehabilitation policy is evolved by active participation of all Stake Holders.

Private Land are being purchased on mutual consent basis at fixed price.

Green belt, 500 m wide around the Naya Raipur.

A lot of green spaces inside the city more than 2500 hectares.

No overhead wires, underground electricity & Tele-communication network is

planned.

Vibrant public places and strong cultural institutions set amidst landscaped

greens.


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Administrative capital of Chhattisgarh and seat of State administration

buildings - the Secretariat, Police Headquarters, Legislative Assembly, Raj

Bhawan and Offices of heads of departments, to come up in the city.

Cultural centre of Chhattisgarh with museums, libraries, theatres and art

galleries.

Knowledge center of Chhattisgarh with university, research and institutional

complexes.

World class amenities including Star Hotels, 18-hole Golf Course, Theme

Township, Convention Centre, IT SEZ, Shopping Malls and Multiplexes.

PHASES OF DEVELOPMENT

Naya Raipur city is designed for 5.6 Lakh population, is proposed to be

developed in 3 phases.

Phase I Target Population = 1.50 lacs

Phase II - Target Population = 3.65 lacs

Phase III - Target Population = 5.60 lacs

The development of any region is directly related to its power requirement andthe quality of infrastructure to support it. The estimated power requirement of entire

Naya Raipur is of 250 MW. Implementation and development of power supply

system would be done as under;

Power up to 132 KV voltage level will be taken through overhead system & up

to 33 KV voltage would be taken through underground system. The cables will be

taken through underground Pucca trench ( Duct ). To ensure minimum interruption of

power supply, the underground system of 33 & 11 KV will be connected is ring main.

All 33/11 KV substation be establish would be indoor type. The SCADA (Supervisory

Control and Date Acquisition) is going to be introducing up to distribution transformer

to have online monitoring and control of power supply. In street lighting system latest

technologies i.e. T-5, LED's (light emitting diodes) instead of sodium vapours lamps

is used. There is proposal for solar lighting system for SSB building by installation of

solar panel's on roof of capital complex building except secretariat building. For

street light it is decided to use solar energy for which a solar power plant is going to

be establish at Kuhera.


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CHAPTER II

STUDY

&

TRAINING ON RUNNING COMPONENTS

The Naya Raipur Development Authority ( NRDA) has given us a Schedule of

Training Programme. Engineer in Chief oriented us on the whole project at his office

and guided, taught and interacted with us at site during his official visit to site and

components of the project running. There are batches of 10 students under the

supervision and guidance of at least an Executive Engineer preferably the In-charge

of the Project.

Apart from the government official we are able to interact, learn from

contractor side Project Manager and Site Engineer. There is an extended technical

arm of NRDA in the name of PMC ( Project Management Consultant ). This agency

manages the whole project and keeps surveillance on the quality and quantity

applied in the project in the form of Men, Machines and Material. The Team Leader

from PMCs and their resident engineer also enlightened technically and explained in

details all the works running in their command and control.

Following running components of City Development is studied by me and

visited the site to learn, how work is being done practically on the site conditions and

its relation with the drawing and bill of quantity ( BOQ) .

2.1 CONSTRUCTION OF ROAD

Construction of all major roads of the city is almost complete and finishing

work is going on. We studied the following map and related the components/items

given in the map with completed work on the site.

1. Road Net work of the city

Roads are designed to ensure free flow of traffic with speed, safety and

smoothness. The care is taken to avoid traffic bottlenecks, congestions, vehicle

pollution and accidents during the road design.


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Total Length of proposed roads: 225 km.

Construction work on 71 km of road has been started (100m and 60m ROW)

Construction Agency: M/s B. Seenaiah & Company(Projects) Limited, Hyderabad

Project Management Consultancy: M/s Sheldia Associates Inc., USA.

Architectural Consultants: M/s.Comfort Designers, Hyderabad

LAYERS

A) EmbankmentB) Sub Grade Depth 500 mmC) Granular Sub Grade Depth 200 mmD) Wet Mix Macadam layer I Depth 125 mmE) Wet Mix Macadam layer II Depth 125 mmF) Dense Bitumen Macadam Depth 70 mm (minimum) 200

mm(maximum)

G) Bitumen Macadam Depth 40 mm
http://en.wikipedia.org/wiki/Hyderabad,_Indiahttp://en.wikipedia.org/wiki/USAhttp://en.wikipedia.org/wiki/USAhttp://en.wikipedia.org/wiki/Hyderabad,_India


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PROCEDURE

1) Cleaning and Grabbing of the surface with in the R O W(Right Of Way)

2) Mark other ground level (OGL). Karachi is marked as a sea level.

3) Laying of Embankment( +20,-25)

4) Above the Embankment Sub Grade are laid in three layers of depth 200mm ,

150mm, 150mm. The max depth is 200mm because above this the layer is

difficult to compact.(+20,-25).

5) Layer of Granular Sub Grade is laid above it of depth 200mm.(+10,-20).

6) Now lay the WMM in 2 layer of depth 125mm each.(+10,-10).

7) Dense Bitumen Macadam is laid above WMM of depth 70mm(+6,-6).

8) The top most layer is Bitumen Macadam of depth 40mm.(+6,-6).

It is required to leave the offset on laying the different layers so that it will be

easy in compaction with roller and it will not crack.

The different dia steel bar are used in this project for the bridges are as under:

Weight of Steel Bar per meter = {(diameter)2/ 162}, wait of the different

diameter steel bar are;

i) 6mm steel 0 .22 kgii) 7 mm round coil 0.30kgiii) 8mm coil 0.39 kgiv) 10mm steel 0.62 kgv) 12 mm 0.89 kgvi) 16mm 1.58kgvii) 20mm 2.46 kgviii) 25mm 3.85kgix) 32mm 4.83kg

x) 16 mm round 1.58 kgxi) 20 mm round 2.46 kg


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Two types of Cement i.e. Ppc and Opc are used.

Following Admixture are used;

TE 101 6h27 SP500

Pipe: RCC home pipes 1200 dia and 300 dia concrete grade are used.

Following drawings studied and learnt to interpret them.

A: Typical cross section

B: Bus bay


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C: Typical details showing entry to Fuel Filing Station

D: Street Light System


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E: Schematic Drawing

F: Landscaping


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G: Site Office Plan

H: LAYING OF WET MIX MACADAM


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We studied the laying of WMM at the chainage 9, 17, 25. The process ofLaying down of WMM of depth 125 mm is ;

First the site engineer calculates the total height after the WMM is laid down.

The total height = 303.549 Now to find the toe for the road ..

At chainage 9 Left will be 2.242 For the right it will be 4.444

At chainage 17 For the left it is 1.546 And for the right, it is 1.671

At chainage 25 For the left side it will be 1.560 and for the right it is 1.685

for the total height of the WMM from the total height of the road we have tosubtract 20mm (the depth of the B C) and it comes as 303.349

At the chainage 17 to find the camber of the road (1.546 x 1.5)/100=0.02319

Therefore for the right 301.343+0.023=301.36

For the left (1.546x2.5)/100=0.0385

Toe = 301.343-0.0385=301.304

FRL

I: STUDY OF DIFFERENT CROSS SECTION MAPS

Different types of cross section at different places are required. The maps

prepared for the specific site is studied and visually correlated with the sites.

The cross section maps and alignment map studied are;

I1. Cross section at 9.00m


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IA. Alignment Plan of Local Road on Road No. 7


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2.2 CAPITOL COMPLEX

Capitol Complex mainly consist of secretariat building and head of the

department building. Capitol complex area is approximate 355.79 ha. It is in

rectangular shape bordered by 60 m. ROW roads at North, East and South direction.

There is 100 m ROW road at West side. It is connected by 60 m. ROW road with

road no 2 which passes through the middle of Mantralya and Head of Department

building. Both the buildings and their ancillary units are surrounded by a ring road

diameter 1 km from the center of rectangle.

Architect for the Capitol Complex is Shri Uttam C Jain. Both the building is

divided in different blocks .Each block is connected at each floor through lobby via

canopy.We under gone for training in Mantralya Building ( Secretariat Building ) and

following observations are made.

The building consists of;

Minister block G+5 lobby l4

Secretaries block G+4 entry through lobby 4 (G+4)

Section block G+3 via lobby 1 (G+3)

Ancillary facilities block (G+2) entry through lobby 5(G+2)

The following map shows layout of Secretariat;


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We receive training on the following running work apart from the overall

understanding of building and completed work.

A: CONCRETE BLOCK

It is used for the construction purpose whose dimension is 390x190x150

(for partition wall) and 390x190x200 for Stairs Tread and riser 230 and 150

respectively.

B: ARTIFICIAL LAKE

The lake is proposed in the Landscape area of Capitol Complex and this will

make the environment friendly beautiful ambience and will help in cooling down the

surrounding temperature during the hot dry season of Raipur in Month of April to

July. The part of the lake runs in between both buildings i.e. Mantralaya and HOD

building.

Following work is studied and got training in;

a. SOLING

Soling of 200mm is done by placing the stone in angle of 30 degree with

respect to the reference wall and is covered up with the small aggregate and soil.


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b. PCC

PCC of depth 150mm is laid down up on the soling which take 2 days time for

curing.

c. Water Proofing

Water proofing of depth 75mm is done by placing stone slates after the PCC

has been done.

Lake

Raft of depth 170mm

d. Reinforcement with the cover of 40 mm .

e. Grade slab of thickness 150 mm

f. Concrete finishing.


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C: LOBBY

There are 4 lobbies in the plan, and the entry to this lobby is through the

structure called canopy. Construction of the canopy for lobby 2 has completed which

took 4 months for completion. Bar used in this canopy is of 25mm of diameter and

the footing depth is 4m.

Before starting the work the surveyor makes the template of the canopy by

taking the help of total

station. This template

makes the work of

engineer easy as it is

of exact scale as the

structure is. The

template is used to

make the curves in

steel bars. The

template is made in the

room of exact size of

the structure.

WORKER MAKING TEMPLATE.


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D: SLAB

Cover used for the slab is 30mm and for the beam they used 40mm of cover.

Picture showing labours placing the cover of 30mm under the reinforcement for the

slab.

The concrete of grade M35 is used for the slab which is pumped through

concrete pump (Capacity 30 m3

per hour and it pumps the

concrete up up to the height of 100m). Concrete is poured over the

structure with the help of labours

properly. The slab has 275 mm of

the thickness.

Lap development length is 52d

(d = diameter of the beam)

Crank length for the mid section is L/4 and for the

end it is L/5.


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F: CANOPY FOR LOBBY 1

This canopy is under construction using bar of diameter 25 mm and 36 mm

and almost 12 tonnes of bar is used

for the construction. We studied its

drawing and related to running work

for better understanding.


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G: LOBBY 3

The lobby is under construction having trapezoidal shape and height of 38 m.

The lobby has only back face vertically straight and rest all three faces are tilted in

the angle of 72 degree. This lobby is the main entrance in building.

Trapezoidal Lobby (Lobby 3) under construction

H: LOBBY 4

Constructed

All the lobbies has small openings (sky light) in the slab which will emit natural

light to the passage.


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I: WATER HARVESTING SYSTEM

Construction of Rain Water Harvesting System is studied and following

technical parameters were being adopted.

Plump concrete laid down in 2 layers

Grade slab over the plump concrete of thickness 150mm

Reinforcement with the cover of 40mm and then again laying of grade of

depth 150mm

Cover of 30mm


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Concrete finishing

Colum in water harvesting tank is of dimension 400x400

The arrangements of the rings are as under;

The pump which will pump out the water will be placed in the corner of the

tank where all the water will be collected, as the floor of the tank is in the slope of

1:50. The slope has been given because no water should remain in the tank, and the

pump machine could easily pump the water out.


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The place of the pump where all the water will get collected as the floor is in

the slope of 1:50.

The water bar used as shown in fig in every joint to restrict the water leakage

from the joint. The water bar is 200mm broad.


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Water proofing of the external wall is been done using the stone as shown

and the mixture of the cement is in the ratio of 1:3(cement: aggregate) with 100 ml of

water procch (admixture)

Stone slates used for water proofing.

Workers placing stones in the external wall.


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The C I steps provided in the tank for the future purpose.

J: SLAB IN MANTRALAYA

In between 2 consecutive column beam runs for supporting the slab which

takes more space and this place can be

used for laying fire fighting pipe, duct water

pipe etc in a easy way therefore to avoid

the turning or bending of these things we

use cap slab. This slab restrict the use

of beam in between because it takes

the required load from slab and

distribute is wisely. The grade of the

concrete used is M35

This slab has that advantage that once it achieves the strength of about 7.5 to

10 kN per mm2 we start doing tension and remove the shuttering.


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K: COLUMN

The bar used for the column is of diameter 20 and 25 mm for the round

column. The grade used for the column is M40

L: BEAM

The bar used is 20 mm diameter for the lower part and 25 to 32 mm diameter

for the upper reinforcement of the beam

For long column tie beam are used.th grade of the concrete for the beam is

M35.


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M: THERMAL ENERGY STORAGE SYSTEM

1. The thermal energy storage system (TESS) provides the shortfall of the energy

when demand is higher than the chiller capacity. Thus chiller operation is continuous

and its efficiency is at a maximum. This is the most effective way to reduce operating

costs of refrigeration process and air-conditioning and to take advantage of lower

cost off-peak electricity and to reduce the demand charge by reducing the required

electrical supply. The TESS allows real management of the cooling energy according

to the demand.

2. Thermal Energy storage tank is meant for storing cooling energy in the PCM of

nodules (in the TEST) during Off hours(in night) which is used later during peak hour

or when there is power failure.

The heat transfer fluid (Brine) is cooled by the chiller and Circulating the fluid

through the tank causes the crystallization of the PCM in the Nodules. The energy is

stored as latent heat during the liquid-solid crystallization. This Process is called

charging of TEST.

The phase change temperatures range from minus 33.05 [deg. ]C to plus 0

[degrees]C and a heat recovery nodule at 27 [degrees]C.

The Installation has 3 nos thermal energy storage Tank with capacity 0f 2375 TRH

and can back up for 4 Hrs.

3.There are 3 ways of operation of TEST.

I) Parallel (Direct Production+ Charge)

II) Series Down Stream (Charge)

III) Series up stream (Direct production+ discharge)


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The requirement is of 2375 TR(approx) to cool the area of 44000 Sft as

coming under air conditioned area.

Here chiller installed capacity is of

325TR * 4 nos = 1300TR and 3 will

be in operation at a time, so

utilization of chiller capacity is

325TR * 3 = 975 TR.

Thus we can utilize rest of our

requirement from TEST and by

this process we will be able to

save Electricity Bill up to 40% -60%.

The nodules shown in above picture stores cooling energy i.e. they come at lower

temperature and are capable of releasing energy as and when require basis.

N: AIR HANDLING UNIT

The air handling unit is an integrated piece of equipment consisting of fans,

heating and cooling coils, air-control dampers, filters and silencers. The purpose of

this equipment is to collect and mix outdoor air with that returning from the building

space. The air mixture is then cooled or heated, after which it is discharged into the

building space through a duct system made up of five-feet diameter pipes.

The material used for Insulation of the Air

Handling Units are;

Bitumen coating

Litimun

Glass wool

Sheet

Steel jali


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O: SCREEN WALL

Screen wall is provided to the

building to restrict the sunlight inside

the room and this will make the room

cool enough which decreases the

electricity cost.

Shuttering plan for the screen wall

To lock the suttering tie rod is used

for the purpose.


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P: PARGOLA

This provided in the ancialry unit of the Mantrayla beside the cafeteria. The

pergola is designed for creation of shade and to support climbers for a natural

ambience.

Over view


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Q: MINISTER BLOCK

This block is design for 3 secretary 12 ministers and 12 MLA and the 5 th floor

is for Chief Minister

For one minister there is

provision of 1 cabin, 1 ante

room, toilet, balcony, personal

secretary room, personal assistant

room and other staff room. Each will

have waiting room which will be

covered by wall of glass block.

Finishing of each floor include

false ceiling inside which galvanized

tray (for caring electrical wire) fire

pipe and insulation pipe are running.

The side of the false ceiling is

covered by aluminium sheet which

open able for any future

maintenance purpose. The lintel

level for this project is 2600mm.


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2.3 WATER SUPPLY SYSTEM

JITF Aquasource is working with Naya Raipur Develoment Authority for the

development of Water Supply System in Naya Raipur under a Build, Operate and Transfer

(BOT) concession framework. The project comprises the development, design, construction,operation and maintenance of water supply and treatment facilities for a concession period

of 8 years.

Capacity: 102 MLD

Revenue Model: Bulk water supply to the client on annuity basis.

Project Value: Rs 150 Crore; US$ 35 Million

A: RAW WATER PUMPING MAIN

The construction and development of Raw Water Pumping Main is going on. The

whole system, map, charts and drawings are studied. Running work is seen and learnt

following things;

This is the Raw Water Pumping Main layout drawing and this shows that it

being laid almost along the existing road. The intake well which is under

construction on the Mahanadi is 25 km away from the water treatment plant being

constructed in village Pacheda within Naya Raipur.,


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B: MS PIPE

M S pipe are being used in the water supply system after coating it by the

cement concrete to prevent it from corrosion and rusting. It is coated by a specially

designed CC coating plant containing a rotor which rotates the pipe and a cement

concrete pump having a nozel at the end of pipe. Reinforcement of wire mesh is

used as a base for CC coating, in other words it is Reinforced CC coating.

Inside Coated MS Pipe


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C: INTAKE WELL

For the water supply system the INTAKE well is under construction on the

river Mahanadi which is 25 km away from the water supply system and connected

through the M S pipe of Diameter 1 m.


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D: MASTER BALACING RESERVOIR

Master balancing reservoir is under construction on the site for the water

treatment plant. This has 16 column of 450 mm diameter and 37 column of 550 mm

diameter.

CROSS SECTION : MASTER BALACING RESERVOIR


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F: THE WATER TREATMENT PROCESS

a) AerationAeration is the process of bringing water and air into close contact in order to

remove dissolved gases, such as carbon dioxide, and to oxidize dissolved

metals such as iron. It can also be used to remove volatile organic chemicals

(VOC) in the water.

Cascade Aerators

A cascade aerator consists of a series of steps that the water flows over. In all

cascade aerators, aeration is accomplished in the splash zones. The aeration

action is similar to a flowing stream. Splash areas are created by placing

blocks across the incline. Cascade aerators can be used to oxidize iron and to

partially reduce dissolved gases. They are the oldest and most common type

of aerators.

b) Flocculation

Alum is added to the water in FLASH MIXER for flocculation.

c) Clariflocculator

In this treatment plant, the flocculator and the clarifier is combined together to

achieve economy in construction. The combined unit of flocculator and

clarifier is known as clariflocculator.

Clariflocculator have two concentric tanks with inner tank serving as

flocculation basin and outer tank serving as clarifier.

WorkingTreated liquid flows first to the flocculation tank where polymer/alum is added

to promote floc growth, then up through the plate pack(s) while the solids

settle (out due to gravity) to the bottom sludge cones.


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G: CONSTRUCTION OF CLARIFLOCCULATOR

Diameter of clarifier = 37.3 m Cover used = 50mm Bar used =12 mm Development length = 50d and 80 d. Wall thickness =250 mm

Pipe used 12mm with the coating of 25mm and cover used is 10mm.

d) The sludge formed is collected on SLUGE SUMP PIT.

e) The water then passes through FILTER HOUSE where the small particles ofimpurities get collected.

f) Then the water is collected on the master balancing reservoir.

g) The cleaning of the filter house is done by the back wash and the sludge getscollected in filter backwash waste sump.

The water collected on the MBR is then will be distributed to the town

through Ductile Iron Pipe of the radius 1 m which further reduces to 900m as

per the design.

ABHISHEK SHARMA

Enrol No. A2315808027

Class: 7 CE 1

Course : B.Tech (Civil)Batch: 20 08-12


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Reference:

1. Naya Raipur Development Plan 20 31

2. DPR and working Drawings for 100 m, 60 m ROW Roads for Naya

Raipur.

3. DPR and working Drawings for Capitol Complex, ( Secretariat Building

+ Head of Department Building + Ancillary Buildings and Landscape

around) within Naya Raipur

4. DPR and working Drawings for Water Supply System for Naya Raipur.


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Industry guide;

Documents

PR Abhi Comp Reseed Final