Senior Geotechnical Engineer

Brisbane, Queensland, Australia

Senior Geotechnical Engineer

Evolution Mining · Jun 2024 – Saat ini

Cloncurry, Queensland, Australia

Specialist Undergroung Geotechnical

Freeport Indonesia ·

Feb 2022 – Jul 2024 ·

Indonesia

Responsibilities
• Provide geotechnical consultation to the geotechnical and operation team.
• Review hydrofracturing plan to achieve optimum caveability, satisfactory fragmentation and stress management for the newly developed mine.
• Analyse caving induce damage to the active panel blocks and sub-levels using numerical modelling.
• Responsible for geotechnical review and recommendation on the feasibility study of a new underground mine.
• Establish excavation vulnerability map using back analysis of the rockmass damage and modelling.

Superintendent DOZ-DMLZ Caving Stability

Nov 2018 – Des 2019 ·

Papua, Indonesia

Responsibilities
•Ensure the ground control management plan (GCMP) is well implemented in geotechnical design and monitoring.
• Provide regular analyses of ground conditions for appropriate ground support design or rehabilitation support design that can be implemented on time to prevent extensive damage
• Mentoring and coaching graduate engineers in rockmass characterisation and ground support design.
• Manage and ensure the safety of sub-ordinates
• Analyse cave back monitoring results to model cave propagation factor using Map3D.
• Lead borehole camera monitoring program in DMLZ footprint to calibrate deep of failure model (ROCSCIENCE – RS2 and Map3D).

Senior Geotechnical Engineer

Mei 2014 – Nov 2018 ·

Responsibilities
• Manage geotechnical data collection for active development headings in the DMLZ mine for optimum ground support design.
• Supervise weekly wet muck draw point mapping in DOZ Mine.
• Organised installation, measurement, and database management of geotechnical monitoring.
• Reviewed monitoring output (seismicity, blasting and ground deformation) for appropriate rehabilitation ground support design.
• Ground support design assessment for new excavation including the horizontal and vertical opening.
• Analysis of 3D modelling and actual seismic event distribution to predict cave shape.
• DMLZ rockmass characterisation.
• Lead rapid rehabilitation plan in soft rock zone and squeezed areas of the DOZ mine.
• Manage and ensure the safety of sub-ordinates

Project achievements:
• Succeed in safely expediting drifting through a weak ground (RQD 0-25%) at a ventilation drift using shotcrete arches support to reduce steel-set and concrete consumption by 60% and prevent delay in the development of Undercut and Extraction levels.
• Stress component calibration using 3D modelling (ROCSCIENCE – RS2 and Map3D).
• Developed wetmuck (mudrush) hazards map and potential spill prediction.
• Provide ground support recommendation and excavation design for secondary egress through the minor pillar.

Underground Geotechnical Engineer

Des 2012 – Mei 2014 · 1 thn 6 bln

Tembagapura, Papua

Responsibilities:
• Allocated 60% of daily activities conducted geotechnical data collection for over 10 active development headings, 10 undercut drives, 24 active panels (768 active draw points).
• Examined geotechnical mapping/ inspection result for reliable rockmass characterisation output to design proper ground support recommendation (Rocscience package, GSST, and MAP3D) for upcoming blasted heading.
• Initiated paperless mapping/ inspection system (heading, draw-points, and fragmentation) using the ANDROID platform linked to ACQUIRE database; reduces time consumption by 30%.

Junior Mining Engineer

Indo Energi Alam Resources

Apr 2012 – Nov 2012

Berau, Kalimantan Timur, Indonesia

Responsibilities:
• Engaged in mine design of 5 km haul road, pit design and mine planning.
• Appointed as a project controller for a 50,000 sqm stockpile and loading conveyor construction.
• Administered weekly coal sampling and quality tests to an independent laboratory.
Achievements:
-Succeed in establishing stockpile and barge loading conveyor.
– Succeed in optimizing product supply chain system.
– Succeed in the very first barging .