Retention Works

CHALLENGES SOLUTIONS IAS 5.0 FRAMEWORK SUCCESS STORIES

Retention Works

Location: – Beawar Pali, Rajasthan, India
Client Name: – National Highways Authority of India (NHAI)
Year of Construction: 2020

Problem: – Railway station yard and Station building site are situated in low lying area previously known as Sukhsagar, consisting of poor quality soil up to 13.25m below ground. During monsoon the whole catchment area was filled up with water and water table was raised even by 3.0 to 4.0 m above the ground level. Constructed embankment divided low lying area in two parts. Water used to flow from upstream to downstream through openings provided in the embankment.

Solution: – Considering the requirement and resources available, we have proposed HTS Cubes Gravity structures for various heights. It has been decided to consider up to maximum 10 meter of height for single wall. For the height, more than 10 meters, two tiered wall of HTS Cubes wall with minimum berm width of 1.0 meter was proposed. For locations with very weak soft clay for higher depths, Polycore Geojacket Consolidator (PGC) can be feasible and effective solution
to reducing time required for consolidation and accelerate the settlement. High Tensile Steel Cubes (HTS Cubes) and Nonwoven Geotextile satisfied all the technical parameters for their effective usage. The execution was successfully completed in time. The department was satisfied with the material quality and on time execution of project.