About Dhanushka Kumara:
Professional with extensive experience in geological site investigation, underground excavation, leading role in major projects, an updated educational background, and also has the ability to adapt rapidly to new systems.
Experience
| Tunnel Geologist | |||||||||
Infotechs Ideas Pvt Ltd (Tractebel Engie- Geo Consultant JV) | |||||||||
| 10/2021 – Present | Polpithigama, Sri Lanka | ||||||||
| Construction of Mahakithula inlet tunnel, Mahakithula, Mahadambe & Mahakirula Earth Dams and cut & cover feeder canals | |||||||||
| Responsibilities | |||||||||
| Planning and conducting geotechnical investigation programs consisting of exploratory borehole drilling, augering, geological mapping, and trial pit/trench excavation | |||||||||
| Conducting core logging, trial pit & auger hole logging, and in-situ/laboratory testing for soil and rock | |||||||||
| Supervising tunnel excavation, mapping, grouting & side slope support works based on rock mass classification and approved design drawings | |||||||||
| Supervising dam foundation excavation & grouting | |||||||||
| Supervising dam & tunnel instrumentation and monitoring | |||||||||
| Digitizing & preparing as-built geo-structural maps and rock support maps for the tunnels & dams | |||||||||
| Reviewing method statements, construction drawings and as-built drawings according to the technical specifications | |||||||||
| Geologist | |||||||||
Central Engineering Consultancy Bureau (CECB) | |||||||||
| 05/2019– 09/2021 | Digana, Sri Lanka | ||||||||
| Site Investigation Unit | |||||||||
| Responsibilities | |||||||||
| Managed, planned & implemented site investigation programs | |||||||||
| Conducted borehole logging, trial pit logging & geological mapping | |||||||||
| Conducted in-situ tests (Standard Penetration Test, Dynamic Cone Penetration Test, Mackintosh Probe Test, Field Hydraulic Conductivity Test, Lugeon Test, etc.) | |||||||||
| Prepared stratigraphic 3D models, borehole logs, test pit logs, cross sections and location maps | |||||||||
| Prepared geotechnical site investigation reports | |||||||||
| Surveyed with Total Station survey instrument | |||||||||
| Engineering Geologist | |||||||||
| Central Engineering Consultancy Bureau (CECB) | |||||||||
| 03/2015– 04/2019 | Laggala, Sri Lanka | ||||||||
| Kaluganga Reservoir Earth & Rock Fill Dam, and Conveyance Tunnel & Canal Project: Water Resource Planning and Development Unit, Ministry of Mahaweli and Environment | |||||||||
| Responsibilities | |||||||||
| Conducted geological mapping and supervised slope support works of open pit excavations | |||||||||
| Conducted underground geological mapping & assigned the required wall supports in tunnels & adits | |||||||||
| Planned and conducted geotechnical investigation programs consisting of borehole drilling, probe hole drilling, geological mapping, trial pit excavation and geological testing for soil and rock. | |||||||||
| Planned, supervised & evaluated curtain and consolidation grouting programs in dam foundation, shafts, tunnels and other structures. | |||||||||
| Developed 3D geological models for the analysis and interpretation of subsurface geological formations | |||||||||
| Recognized and advised on foundation geological/ geotechnical issues of both dams and appurtenant structures. | |||||||||
| Reviewed method statements, construction drawings and as-built drawings according to the technical specifications | |||||||||
| Geologist | |||||||||
| National Building Research Organization (NBRO) | |||||||||
| 01/2015– 03/2015 | Badulla, Sri Lanka | ||||||||
| Landslide Research & Risk Management Division | |||||||||
| Responsibilities | |||||||||
| Conducted site investigations on groundwater depletion in certain areas | |||||||||
| Conducted ground movement monitoring investigation, and Slope Stability analysis | |||||||||
| Prepared Landslide Risk Assessment reports as a pre-requisite for granting of building permits and approval of development projects | |||||||||
| Planned & implemented landslide investigation & risk management programs | |||||||||
| Planned human resettlement programs | |||||||||
| Prepared hazard zonation map of Badulla district | |||||||||
Education
| Bachelor of Science (Hons) in Geology (2015) |
| University of Peradeniya, Sri Lanka |
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