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Report On Educational Visit

To

Flyover Bridge On Kalewadi Phata To Dehu-Alandi Road

Class- BE (CIVIL) Date :-18 Sept. 2016

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The Department of Civil Engineering of Dr. D. Y. Patil School of Engineering

organized educational visit to Flyover Bridge on Kalewadi Phata to Dehu-Alandi Road,

Chinchwad, Dist.- Pune on 18th Sep. 2017 for B.E. Civil Engineering students to study

different aspects of Bridge Engineering. Visit was organized as per Pune University

guidelines and recommendations regarding syllabus of B.E Civil Engineering.

Visit was organized with the prior permission and guidance of honourable

Director of DYPSOE, Lohegaon. Dr. S. S. Sonavane & by the initiative and hard efforts

of head of Civil Engineering department Dr.A.R.Kolhe, & class teacher Prof. J. D.

Dalvi guided the students . Along with the staff members, students of B.E Civil takes

hard efforts and initiative under the continuous guidance of Prof. Amol Wagh, which

makes this visit a grand success.

Students left the DYPSOE Campus for visit on 18th Sept 2017 at 9.30 am.

Students carefully studied and observed the different Parts of Bridge such as piers,

bearing plate, abutment, bridge girder,etc.

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Name : Bridge Visit

Location : Empire Estate Fly Over bridge, Near Ranka Jwellers, Chinchwad.

Date of Visit: 18th September 2017

Purpose of Visit: To Study about bridge and its components.

Guide Name: Mr. Pradip Gaikwad.

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INTRODUCTION

The bridge project at empire estate under client name as PCMC. Type of contract

is C-1 type Lump Sum contract given to T & T Infra.Pvt.Ltd with total project cost Rs.

99.99 cr for completion period of 30 months .S.N.BHOBE & ASSOCIATES PVT. LTD

are consultants for these project.

The Flyover project is proposed on 45 m wide DP road for continuous

connectivity over natural barriers. The proposed flyover provides facility for crossing the

existing Pawana River , 18 m DP Road , Pimpri – Chinchwad Link road , Mumbai-Pune

Railway Line & Existing 61m wide Pune Mumbai Road etc.

Six Lane Flyover/Viaduct crossing the Pawana River, 18 M DP Road , Existing

Pimpri Chinchwad Link Road ,Central Railway Line of Mumbai Pune Rail , Existing

61m wide Pune Mumbai Road ( NH-4) and landing after NH4 on DP Road with

approaches and ramps.

This project includes:-

1) Bridge on Pawana River:-

The River Bridge consists of two separate individual carriageways

with overall width of 14.95 m each with central median. The individual

carriageway of River Bridge Portion consist Kerb, crash barrier and railing

between Ch 3+010 to Ch 3+130. The Approach with returns for River Bridge will

start From Ch 2+800 on Kalewadi Side and ends at Ch 3+010 of River bridge. The

Approach Portion consists of two separate individual carriageways with overall

width of 13.15 m each with central median. The individual carriageway of

approach Portion consist Kerb, crash barrier and railing between Ch 2+800 to Ch

3+010.

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2) Continuous flyover/viaduct from Pawana River Bridge up to Rail Over

Bridge (ROB) crossing 18 m DP road & existing Pimpri Chinchwad Link

Road: -

The flyover/viaduct consists of two separate individual carriageway with

overall width of 13.45 m each with Kerb , Crash Barrier in between M V Lane &

Cycle track/pedestrian path & Noise Barriers mounted on crash barrier of outer

sides of individual carriageway in between Ch 3+130 to Ch 3+616. The portion

between two individual carriageways of flyover/Viaduct is varying between Ch

3+130 to Ch 3+568. This portion is varying to accommodate the space required

for proposed elevated bus stop.

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3) ROB on Central Railway -Mumbai Pune Railway Line :-

The ROB consists of two separate individual carriageways with overall

width of 15.30 m each with central median. The individual carriageway of ROB

Portion consist Kerb, crash barrier and railing between Ch 3+616 to Ch 3+653.20.

Retaining Wall on one side of required length is to be constructed for retaining the

existing slope of the shunting track while excavating the foundation along the rail

line on Pune Mumbai within ROW

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4) Continuous flyover/viaduct from Rail Over Bridge with Crossing of Existing

61 M wide Pune Mumbai Road (NH-4) with approach :-

The flyover/viaduct consists of two separate individual carriageways with

varying overall width as described below in between Ch 3+653.20 to Ch 4+393.

The flyover/viaduct consists of two separate individual carriageways with overall

width of 13.45 m each with central median. The individual carriageway of

flyover/viaduct Portion consist Kerb, Crash Barrier in between M V Lane & Cycle

track/pedestrian path & Noise Barriers mounted on crash barrier at outer sides

only of individual carriageway between Ch 3+653.20 to Ch 3+707.

5) Pedestrian Facilities such as Cycle cum pedestrian footpaths/ Track, &

Staircase :-

The raised Pedestrian Footpath with cycle track of 3.65 m wide is to be

provided on Pawana River Bridge and Rail Over Bridge in the individual

carriageway. The raised Pedestrian Footpath cum cycle track of 1.60 m wide is to

be provided on balance length of flyover/Viaduct portion in the individual

carriageway. Eight numbers of individual dog legged staircases of 3.00 m clear

width and landing at each corner is to be provided at Pawana River Bridge and

Rail Over Bridge.

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These bridge is design for 80 kmph but allowance speed is 40 kmph . It is two-

way two-lane with clear carriageway of 9 m &11m for flyover. As per IRC gradient of 1

in 25 is limited and 1 in 30 is most preferable but for these bridge gradient provided is 1

in 28 .Water spot are provided with runner pipes as a drainage arrangement for bridge . It

also conisist of anti –crash barrier with height of 1200 mm and constructed as per IRC.

Defination:-

Bridge is a structure which covers a gap generally bridges carry a road,

walkways, pipelines or railway across a natural or artificial obstacle such as, a

river, water body (part of sea, canal) or another railway or another road /junction,

structure. Nowadays bridges are constructed to decongest traffic

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Components of bridge:-

1. Foundation

Foundation constructed on dry land are called as land foundation .according to

geological condition of soil type of foundation used was pile foundation .

2. Sub-structure

a) Bearing:

The device which are provided over the support of the bridge to accommodate

the change in main girder.

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Function of bearing is to absorb movements of girder , angular movement ,

longitudinal expansion or contraction , etc

Types :

a. Cement concrete pad

b. Expansion bearing

c. Knuckle bearing

d. Rocker and rolling bearing

e. Rubber bearing

f. Sliding bearing

g. Tar paper bearing

The Cement concrete bearing was used for construction .The load carrying

capacity of bearing is 2700 tonnes .

b) Approaches :The length of communication route affected by the layout and

design of the bridge , at both of its end are known as approach .

3. Super-structure

a) Piers

The intermediate support of a bridge superstructureare known as Piers .

Function of piers is to divide the total length of bridge into suitable spans

with minimum obstruction to the stream.

Types :-

a. Column bents

b. Cylindrical piers

c. Dumb-bell piers

d. Pile bent

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e. Solid piers

f. Trestle bents.

The piers of bridge are single casted with some flower like grooves are made

for aesthetic purpose . The bridge is desigensuch maximum height of piers is

5.5m suitated in center and height decrease toward both end and Trestle bents

are used .

Dirt wall – These are used to take end wall load . These are made from individual

connected panels plus in shape.

CONCLUSION:-

We learn about various factor affect planning , designing , and execution of bridge

work . We also learn about Rail Over Bridge (ROB) crossing 18 m DP road. We also

learn about various documentation required for construction of bridge.

Prof. AMOL WAGH Prof. R.C.Katdare

(Subject teacher) (H.O.D)

Civil Dept. SOE