RITES invites tenders for Geotechnical Investigation for various bridges

RITES Ltd., a Public Sector Enterprise under the Ministry of Railways has invited tenders for the work of “ Geotechnical Investigation for 11nos. of RCC Box bridges, 5nos. of major bridges and 1no. of major bridge on Wardha River in connection with the Construction of Railway Siding at Mungoli-Nirguda Open Cast Mine of Wani Area of WCL ”

  • Tender Reference Number: RITES/GM/NGP/ WCL/Wani/GT/T 08 2021
  • Estimated Cost of Work: INR 16.80 Lakh
  • Time for Completion: 60 days
  • Document Download / Sale Start Date: 15-Jul-2021
  • Document Download / Sale End Date: 26-Jul-2021
  • Bid Submission Start Date: 15-Jul-2021
  • Bid Submission End Date: 26-Jul-2021
  • Bid Opening Date: 27-Jul-2021

Brief Scope of Work:

Geotechnical Investigation for 11nos. of RCC Box bridges, 5nos. of major bridges and 1no. of major bridge on Wardha River in connection with the Construction of Railway Siding at Mungoli – Nirguda Open Cast Mine of Wani Area of WCL

Brief Scope of work given below:

  • Mobilization and Demobilization of machinery including making & installation of floating platform for Wardha river bridge including labour & skilled personnel required for soil investigation & exploration, Shifting of Drilling Rigs from Bore hole to Bore hole & removing the same after satisfactory completion of work including restoration of the site as directed by the Engineer In-charge etc. complete.
  • Vertical Boring 150mm dia. through all kinds of soils with suitable equipment.
  • Drilling NX size through weathered rock / having N value >100 / Soft rock having RQD<50%.
  • Drilling NX size through hard rock using diamond bit up to 30m depth. RQD>50% borehole will be terminated in hard rock RQD >50% in continuation for 3m depth.
  • Collecting un-disturbed soil samples in 100mm dia. 450mm long thin walled tube sampler at every 3 Mt. interval or at change of strata whichever occurs earlier from boreholes and sealing the container.
  • Conducting standard penetration tests as per IS: 2131-1981 at 3Mt. interval or at change of strata and collecting the disturbed sample. Packaging and labeling the same.
  • Preserving, Proper packing, handling and transportation of selected rock core samples from site to RITES Ltd., RPO-NGP Office at 1, RITES Bhawan, Kadbi Chowk, Nagpur-440004
  • Submission of all the geotechnical parameters as required for design of foundations of bridges (obtained from Site & Laboratory investigations). Parameters like Silt factors, Scour depths etc. may also be submitted for river bridge boreholes.

Laboratory Tests to be Carried Out:

  • Grain Size analysis, Atterbergs limits including classification of soil.
  • Bulk and dry density, Specific gravity of soil and moisture content on UD samples.
  • Chemical analysis of soil giving contents of sulphates, chlorides, pH value, etc .
  • Consolidation test on clay samples giving relevant information as per IS:2720-XV- 1986.
  • Collection of water samples and testing the same of pH value, sulphates, chlorides etc.
  • Direct shear test, Triaxial shear test giving full test results including mohr circle , stress – strain curve etc.
  • Testing of soft/hard rock for Crushing strength, Density, Water Absorption Test and rock cutting etc. as per relevant IS specifications.
  • Preparation and submission of bore-logs, profiles and tests results, final report in three copies giving recommendation for type of foundation, along with analysis & SBC values.

About RITES Limited:  

  • RITES Limited is a Miniratna (Category-I) Schedule ‘A’ Public Sector Enterprise and a leading player in the transport consultancy and engineering sector in India, having diversified services and geographical reach.
  • Company has an experience spanning 46 years and has undertaken projects in over 55 countries across Asia, Africa, Latin America, South America and the Middle East region.
  • RITES Limited is the only export arm of Indian Railways for providing rolling stock overseas (other than Thailand, Malaysia and Indonesia).
  • RITES Ltd., an ISO 9001:2015 company, is a multi-disciplinary consultancy organization in the fields of transport, infrastructure and related technologies. 
  • It provides a comprehensive array of services under a single roof and believes in transfer of technology to client organizations. 
  • In overseas projects, RITES actively pursues and develops cooperative links with local consultants / firms, as means of maximum utilization of local resources and as an effective instrument of sharing its expertise.

Tender document may be downloaded from CPPP website https://etenders.gov.in/eprocure/app and from RITES website https://www.rites.com.

Source: RITES-Tender | Image Credit (representational): MoR