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HYDERABAD,INDIA
CASE HISTORY Rev: 00, Issue Data 07.01.08
ENVIRONMENTAL/ / SLOPE PROTECTION/
Product: Paraweb
FLY OVER AT PANJAGUTTA JUNCTION
Problem There was traffic congestion near Rajiv Gandhi Statue to Jubilee
Hills at Panjagutta Junction (Nagarjuna Circle), Hyderabad. So, Mu-
nicipal Corporation Of Hyderabad decided to construct flyovers.
There were 2 Flyovers comprising of 5 ramps . Each ramp consisted
of 2 approach walls and 1 cross wall. The maximum height of ap-
proach walls was 6.4m.
In order to avoid extensive foundation improvement schemes , Rein-
forced soil wall was selected as the solution in stead of conventional
Reinforced concrete solutions. The cost of the conventional solution
considered was high and the authorities wanted to have a system
which is very flexible and simple to construct and to achieve overall
economy.
Solution
Reinforced Soil Wall with concrete panels as facia and Paraweb as
reinforcement was selected as the best solution for the above problem.
Paraweb is a flat strip version of a high strength, low weight ,non
corrodible cable called Parafil. It is one of the first ever soil reinforc-
ing material used in the world market and came into use from 1977. It
comprises polyester yarn encased in tough and durable polyethylene
sheath. Paraweb is available in different grades of strength varying
from 30 KN to 100 KN and the roll lengths are of 100m.
T shaped panels with corrugations were mainly used as facia panels
and bottom panels were half panels. Some special end panels and
corner panels were also used. The connection between the panels &
facia was done by galvanized toggles and loops. Polypropylene dow-
els were used to connect different types of panels. Pure frictional soil
with angle of internal friction 32 degrees were used as structural fill.
Client name:
MUNICIPAL CORPORATION OF HYDERABAD
Main contractor name:
GAMMON INDIA LTD
PARAWEB (WALL AREA-3510 SQM)
Construction info
Consultant:
Product used:
Construction date:
TANDON CONSULTANTS PVT LTD
2006
Construction in Progress
ONGOING CONSTRUCTION Construction info:
Starting Phase Of the Construction
PRESENT STATUS
The construction of 3 ramps has been completed and the remaining 2 ramps is in progress.
,During the construction of flyover, one of the bridge span had collapsed. which is at a distance of over 200m away from the RS wall .An
excavation made near to the staging ,led to the collapse of the structure .The heavy rain also triggered this failure.
It is worthwhile to mention that ,the Reinforced Soil Wall is staying intact , without even a slightest sign of distress.
The performance of the completed structures are as per the expected high quality standards.
.
Maccaferri Environmental Solutions Pvt. 1003 ,10th Floor,Casablanca,Plot No.45,Sector-11,CBD Belapur,Navi Mumbai-400614
Tel. 91-22– 27580475/27565451/ 27565906/27580931/ 27580932 - Fax (022) 27580488
E-mail: [email protected], [email protected] - Web site: www.maccaferri.com
Construction in Progress
Construction in Progress