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CASE HISTORY Rev: 00, Issue Data 17.03.08
ENVIRONMENTAL/ HYDRAULIC & EROSION CONTROL/ SLOPE PROTECTION/
Product: Gabions & Geotextiles
GABION WALLS AT SATARA –KOLHAPUR ROAD MAHARASHTRA,INDIA
Problem National Highway 4, running between Mumbai,Pune-
Satara,Kolhapur to Kagal Maharashtra State Border is an important
highway in western Maharashtra. To improve the National Highways
network throughout the country, the Govt of India announced the
Golden Quadrilateral Project and entrusted its implementation to
NHAI. The four laning of Satara-Kolhapur to Maharashtra state bor-
der section was awarded to Maharashtra State Road Development
Corporation(MSRDC) by NHAI. The Project consisted of four laning
of highway, construction of new bridges, culverts, widening of exist-
ing bridges, construction of fly-overs and sub-ways at congested
junctions, service roads etc.
MSRDC approached Maccaferri for retention of the sides of ap-
proach embankments as well as wing walls from Kolhapur to
Kanegaon which was designated as Package 3 of this Project. The
original soil present at the site was clay.It was feared that the
hydraulic forces existing in the site may cause instability for the
retaining structures.There was also the probability of immediate
settlement and consolidation settlement .
The major work was the construction of wing walls for the Bridges
across River Warana and Ghunki which was existing in the stretch
between Satara and Kolhapur. The properties of the existing
foundation soil were γ =17 KN/m3, φ =0 degrees, c =40 Kn/m2. The
maximum height of wall was approximately 13m.
Solution Conventional Structures like Concrete walls were ruled out since it
may require deep foundation because of the existence of the clay.
So,Gabion Walls were adopted as the best alternative as they are
flexible ,permeable and which would make the structure more stable.
As Gabions are free draining by nature,the excess pore water pressure
gets dissipated.
Since the existing soil is found to have poor shear parameters, a
foundation improvement scheme was carried out to a depth of 2m
below Ground level to get good factor of safety in sliding,bearing and
also overall stability. The properties of the replaced soil are γ =20 kN/
m3, φ= 34 degrees & c =0 kN/m2. The structure was designed with
consideration of seismic co-efficients of αh =0.04 & αv =0.02
assuming an importance factor of 1.5.
Client name:
MAHARASHTRA STATE ROAD DEVELOPMENT CORPORATION
Main contractor name:
SIMPLEX CONCRETE PILES
5500 CUM OF GABIONS & 1200 SQM OF GEOTEXTILE
Construction info
Consultant:
Product used:
Construction date:
M/S TECNOGEM CONSULTANTS LTD
JAN 2003
Date: Feb 2001 DEC 2003 Construction End
Date: Feb 2001
Project section drawing
Present Status of the Structure
All Structures were completed in June 2003. The Walls were built with a very good speed. This area occasionally experiences flash floods
which is the most critical condition for any retaining structure. The Gabion walls has successfully withstood all adverse conditions . The client
and the contractor found the cost –effectiveness of the system using Gabions and the easiness with which it can be constructed at any time of
the season.
Plan of Gabion Walls at Warana Bridge for Satara side Abutment
Maccaferri Environmental Solutions Pvt. Ltd. 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