Design, construction and Testing of Dry- Stone Column using dry vibro replacement Technique for Apron 6 at CIAL, Nedumbassery

SH :GROUND IMPROVEMENT WORKS

Design, supply and installation of dry vibro stone columns of maximum 900 mm diameter with well graded aggregate material of size 35mm to 12mm using dry vibro replacement method at a desired spacing in a square or triangular pattern as per the design and at the required depth and filling the aggregate by bottom feed method and compacting mechanically using a vibrating unit called vibro float. Design calculations vetted and approved by IIT ( Indian Institute of Technology) shall be submitted prior to the commencement of work at site. The rate shall be inclusive of all materials, labour, lead, lift, all mobilisation/ demobilisation charges, all equipments, real time monitoring of depth and compaction effort for each column, preperation of records etc,stacking of stones, disposal of muck if any within 5 km and / or as directed by Engineer in charge etc complete.

Carrying out Initial Load test over treated ground using stone coulmns as per IS 15284 (Part 1). The rate shall be inclusive of all materials like plates, jacks, measuring devices etc, labour, lead, lift, preperation of records, all mobilisation/ demobilisation charges, and / or as directed by Engineer in charge etc complete. Single Column plate load test

Carrying out Initial Load test over treated ground using stone coulmns as per IS 15284 (Part 1). The rate shall be inclusive of all materials like plates, jacks, measuring devices etc, labour, lead, lift, preperation of records, all mobilisation/ demobilisation charges, and / or as directed by Engineer in charge etc complete. Group Column Plate load test

Carrying out Routine Load test over treated ground using stone coulmns as per IS 15284 (Part 1). The rate shall be inclusive of all materials like plates, jacks, measuring devices etc, labour, lead, lift, preperation of records, all mobilisation/ demobilisation charges, and / or as directed by Engineer in charge etc complete. Single Column plate load test

Carrying out Routine Load test over treated ground using stone coulmns as per IS 15284 (Part 1). The rate shall be inclusive of all materials like plates, jacks, measuring devices etc, labour, lead, lift, preperation of records, all mobilisation/ demobilisation charges, and / or as directed by Engineer in charge etc complete. Group Column Plate load test

Carrying out pre / post treatment Soil investigation works - Electric Cone Penetration Test (eCPT) upto refusal. The rate shall be inclusive of all materials, labour, lead, lift, preperation of records, all mobilisation/ demobilisation charges, and / or as directed by Engineer in charge etc complete.

Surface dressing of the ground including removing vegetation and in-equalities not exceeding 15 cm deep and disposal of rubbish, lead up to 5km and lift up to 1.5 m etc complete as directed by Engineer in charge

SH :MISCELLANEOUS WORKS

Providing and erecting 2.00-metre-high temporary barricading at site as per drawing/ as directed by Engineer-in-Charge which shall include writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the Engineer-in-Charge. The barricading provided shall be retained in position at site continuously including shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. Rate include its maintenance for damages, painting, all incidentals, labour materials, equipments and works required to execute the job. The barricading shall not be removed without prior approval of Engineer-in-Charge. (Note :- One time payment shall be made for providing barricading from start of work till completion of work i/c shifting. The barricading provided shall remain to be the property of the contractor on completion of the work).