Gondal, Gujarat, India | Keval Construction
The old road overbridge (39A) in the prime area of Gondal (Gujarat) was not in alignment & was in skew. As a result, lots of traffic issues were experienced and further deterioration of bridge was anticipated. To fix this, reinforced soil wall with panel facia was nonstructured, after carefully studying geotechnical parameters of the land & soil of the surrounding area of the bridge.
The project scope included reconstruction of ROB in the prime area of Gondal (Gujarat), wherein the alignment of old ROB was in skew. Considering the city congestion and adjoining private lands, alternate alignments were not an option. For the current structure, maximum height of retaining wall was evaluated to be approximately 11m. With due consideration to limited right of way; minimizing land acquisition; poor ground conditions; economy and speed of construction, the consultant has recommended to adopt reinforced soil structure for the approached of ROB in the current project.
Pursuing the detailed geotechnical investigations and the site conditions, it was decided to adopt the reinforced soil wall with panel facia and TechStrap (Geostrap) as reinforcement compared to other alternatives such as RCC retaining walls / gabion gravity walls etc. Following are some of the advantages of adopting reinforced soil walls with panel facia and techstrap reinforcement:
Simple and rapid construction procedures and do not require heavy machinary / equipment
Construction space requirements shall be minimal in front of the structure.
Pore-water pressure will not be developed.
Its flexibile in nature which can to absorb deformations.
Deep foundation were not required as less pressures will be exerted on the foundation soil.
Cost effective and aesthetically pleasing compared to other alternatives.
The project was successfully completed in October 2020. Reinforced soil wall with panel fascia was built using the material supplied by TechFab & was implemented in very less time, ensuring minimal disruption of traffic as it is in the prime location. Also, it has solved the core issues of strengthening ROB with economical cost.
The old road overbridge (ROB 39A) in Gondal was skewed and misaligned, causing traffic congestion and safety concerns. Further deterioration of the bridge was anticipated, making reconstruction essential.
Skew alignment of the old ROB.
Limited right of way and adjoining private lands, restricting alternate alignments.
Poor ground conditions requiring careful geotechnical evaluation.
Need for a cost-effective and rapid solution in a congested urban area.
Maximum retaining wall height of approximately 11 m.
Compared to RCC retaining walls or gabion gravity walls, reinforced soil walls offered:
Simple and rapid construction without heavy machinery.
Minimal space requirements in front of the structure.
No development of pore-water pressure.
Flexibility to absorb deformations.
Reduced foundation pressures, eliminating the need for deep foundations.
Cost-effectiveness and aesthetically pleasing design.
The project adopted TechStrap (Geostrap) reinforcement with panel facia for the reinforced soil wall. This system provided stability, flexibility, and durability under the site’s geotechnical conditions.
Enabled fast construction with minimal disruption to traffic.
Reduced land acquisition requirements.
Delivered a stable and durable structure at economical cost.
Provided an aesthetically pleasing solution suitable for a prime city location.
The project was successfully completed in October 2020. The reinforced soil wall with panel facia solved the alignment and stability issues, ensuring smooth traffic flow and long-term performance.
TechStrap (Geostrap) supplied by TechFab India Industries Ltd.
