TENDER FOR THE SERVICE OF GEOTECHNICAL INVESTIGATION SERVICES

Ngali Mining Ltd is a subsidiary of Ngali Holdings based in Kigali in BODIFA MERCY HOUSE KIMIHURURA IN 7^TH FLOOR. We are inviting you to compete for this tender according to the technical specifications

Tender No: 02/10/NM/2023 for the service of geotechnical investigation services 

Administrative documents:

1. RDB Certificate
2. Tax clearance
3. RSSB Clearance

TERMS OF REFERENCE FOR GEOTECHNICAL INVESTIGATION SERVICES

Introduction

Ngali Mining Ltd is looking for a competent company to conduct geotechnical tests at the proposed dam site of the Rwondo Hydro Power Plant in Nyamagabe District.

Scope of the Work

The objective of this geotechnical investigation program is to gain reliable data about the geological and geotechnical conditions of the site whereof to construct a hydropower plant.

The Services shall be carried out in accordance with the following standards:

• BS/AASHTO standard
• ISRM: Suggested methods for rock characterization, testing and monitoring (site characterization, laboratory testing of rock samples, in-situ measurements, geophysical testing),
• Eurocode 7, Part 2 (Ground investigations),

In addition, the Geotechnical Laboratory shall apply internationally accepted best practice and technical specifications in order to maximise the reliability of the collected data.

Similar Jobs in Rwanda
Learn more about Ngali Mining
Ngali Mining jobs in Rwanda

1. Laboratory Testing
2. Particle size distribution (sieve grading plus sedimentation)
3. Atterberg limits (Liquid and plastic limits) plus linear shrinkage
4. Natural moisture content
5. Maximum Dry Density and Optimum Moisture Content
6. California Bearing Ratio (CBR)
7. Direct Shear test
8. Chemical testing
9. PH
10. Conductivity
11. Sulfate Content
12. In-Situ Tests
13. Mobilization of Geotechnical personnel on site for supervision
14. Mobilization of in-situ testing equipment (single and double packer) and personnel
15. Water Pressure (Lugeon) tests
16. Geotechnical Report
17. Geotechnical Factual & Interpretative Report

Reports

The Geotechnical Laboratory shall submit the following after the course of the field work and laboratory testing:

1. Geotechnical Factual & Interpretative Report

Contractor’s proposal

The contract’s proposal has to cover the following sections and the marking scheme will be 100% whereas: pass mark is 50% for technical evaluation and 30% financial evaluation and administrative part will be evaluated at 20%

Cost Estimates as per the following table:

1. Geotechnical Laboratory’s Personnel and Personnel Schedule as per the following table:

Interested bidders should submit the bid offers to the procurement office of Ngali Mining at BODIFA MERCY HOUSE KIMIHURURA RUGANDO at 7^th floor. Deadline for submitting bids will be on 6^th October 2023 at 14h00. Opening of the envelopes will be the same day at 14h30 pm in the Boardroom for Ngali Mining Ltd. 

Done at Kigali on 4^th October 2023 

Ngali Management