Rian Adi Nugroho
Development and Production Senior Mining Engineer
Sleman
Summary
Results-driven mining engineer with nearly 16 years of extensive experience specializing in underground block caving methods. Expertise includes comprehensive planning and engineering support across short-term, medium-term, and long-term projects, encompassing all phases from development and pre-production strategy to active production. Proficient in mine scheduling and design, cost and budget development, as well as project control for underground mass excavation. Demonstrated ability in drill and blast design for cave activities ensures efficient project execution and optimal resource utilization.
Overview
17
17
years of professional experience
Work History
Senior Mining Engineer Dev-Prod Operation DMLZ
PT. Freeport Indonesia
08.2019 - Current
- Directed and controlled sequence activities for DMLZ and PB4 development, production, and fix facilities projects.
- Provided input in the design of DMLZ Development Strategy, Production Drill and Blast with infrastructure automation.
- Have produce working instruction and standard operational procedures for DMLZ and PB4 Projects.
- Worked closely with engineering, operations and survey teams to prioritize and execute development, production activities, meeting targets.
- Performed frequent field inspections, identified risks and opportunities, took corrective actions, and informed management.
- Initiated and participated in development strategy and production projects to improve DMLZ and PB4 production activities, collaborating with other departments.
- Recommended development, production target allocation, equipment forecasts, and capital expenditure forecasts to senior management.
- Prepared daily, monthly, and yearly reports, including forecasts for equipment, manpower, licenses, and explosives.
- Coordinated Caving Drill Undercut, LHD extraction, truck haulage, and secondary breakage activities.
- Supervised 18 manual LHDs, 8 remote LHDs, 20 trucks, 5 drilling units, 3 mobile charging units, and 3 mobile rock breakers.
- Led regular meetings with operations and other departments to align development and production targets.
- Managed end‑of‑month summaries and reports for development and production.
- Coached and motivated subordinates to enhance skills and knowledge through training and discipline.
- Achieved daily, monthly, and yearly production targets aligned with long‑term engineering goals, with zero lost‑time incidents and zero fatalities.
Mid-Short Term Chief Mining Engineer Deep Mill Level Zone Mine
PT. Freeport Indonesia
02.2015 - 07.2019
- Establish comprehensive plan schedule for variance simulation in development to align with optimal strategic mine planning through pre-production caving until production timeframe.
- Created comprehensive mass-excavation development schedules to optimize resource utilization. Established mine infrastructure schedules to facilitate project progress. Managed timelines effectively to meet critical project milestones. Implemented scheduling strategies to improve coordination among teams.
- Deliver projections on mine material ground support as well as explosive consumables.
- Manage comprehensive mine design process ensuring alignment with life-of-mine design for timely operations delivery.
- Manage development review and preservation of internal procedures, standards, and guidelines for mine design and planning department.
- Execute handover of extensive excavation projects to construction teams including fan chamber, fixed facilities, crusher, and conveyor system.
- Assessed and defined comprehensive timelines to monitor and report all medium- and short-term expansion projects related to schedule and execution, yielding 80k in production.
- Sustain and refine databases of all expansion engineering activities to optimally support projects and deliver insights and recommendations for superior's further decisions
- Set monthly goal of 1,850 horizontal development meters with 17 drilling rigs. Organized vertical development projects with 4 raise bore machines and 2 Alimak crews. Streamlined processes to achieve efficient utilization of drilling resources. Tracked performance metrics to ensure adherence to project schedules. Coordinated with cross-functional teams for successful execution of drilling operations. Enhanced operational efficiency through strategic planning and resource management.
- Orchestrated mining development strategies and sequences in crusher-503 and 504 mass excavation project, culminating in a finish date 6 months earlier than planned.
- Devised methods and timeline for DMLZ production system loop project, escalating production from 5000 TPD to 80000 TPD.
- Provide actionable insights and guidance to operations regarding safety, health, and industrial hygiene performance focusing on ongoing enhancements in design quality and operations while adhering to national and PTFI standards.
Mid-Short Term Mining Engineer DMLZ Mine
PT. Freeport Indonesia
08.2010 - 02.2015
- Develop structure for daily, weekly, and monthly reporting for horizontal and vertical development with ground support installation.
- Developed monthly goals for ground support ventilation and services, integrating manpower requirements. Drafted goals by mid-month, subsequently creating weekly plans for execution. Facilitated communication between operations and technical teams to set realistic targets. Delivered end-of-month feedback to all groups, highlighting accomplishments and pending tasks impacting timelines.
- Led weekly meetings with operations and technical teams to enhance project coordination. Developed weekly work plans in consultation with operations group ahead of meetings. Executed daily inspections to ensure adherence to schedules and quality metrics. Assessed critical jobs, presenting outstanding tasks for resolution during meetings.
- Spearhead alignment with scheduling operations and contractors to secure timely excavation of top 5 priority headings in line with updated forecast.
- Verified online worksheets against approved designs to maintain quality. Discussed requirements with operations and gathered feedback to prevent misunderstandings. Guaranteed timely distribution of worksheets through proactive engagement with relevant teams
Student Internship
PT. Indonesia Power
01.2010 - 03.2010
- Optimized coal quality selection for boiler, achieving 85% efficiency in power generation for 4 x 400 MW system
Education
Bachelor of Mining Engineering -
University of Pembangunan National (UPN)
Yogyakarta, Indonesia07-2010
Skills
Proficient in specific mine software, such as Deswik Cad, Deswik Interactive Schedule, Deswik UG Drill & Blast
Experience with Microsoft Project and Office
Specialized knowledge in underground mining techniques
Strong knowledge of underground mine design, development, pre-production, caving and production design
Timeline
Senior Mining Engineer Dev-Prod Operation DMLZ
PT. Freeport Indonesia
08.2019 - Current
Mid-Short Term Chief Mining Engineer Deep Mill Level Zone Mine
PT. Freeport Indonesia
02.2015 - 07.2019
Mid-Short Term Mining Engineer DMLZ Mine
PT. Freeport Indonesia
08.2010 - 02.2015
Student Internship
PT. Indonesia Power
01.2010 - 03.2010
Bachelor of Mining Engineering -
University of Pembangunan National (UPN)
AREA EXPERTISE
- Long-term, Mid-term, Short-term mine planning scheduling.
- Life of Mine design and underground block caving concept.
- Underground development tunneling, ground support and mass excavation planning and design.
- Tunneling, Block Caving Undercut and Draw bell for Drill & Blast design with caving sequences.
- Pre-Conditioning and Production Operation with safe sequential activities.
- Rock mechanic and Mine economic.
KEY STRENGTHS
With over 16 years of leadership in underground block cave mining, I bring deep expertise in development strategy, caving operations, production management, and special projects. I have successfully directed large‑scale mining initiatives, achieving peak production of 100K tons/day from 440 draw points, and delivered rapid ramp‑up periods with record draw bell blasts. My background includes 8 years in mine scheduling and planning across long‑, mid‑, and short‑term horizons, ensuring alignment of weekly schedules with broader strategic goals. I have led and mentored engineering teams, implemented infrastructure projects to enhance safety and profitability, and consistently delivered production targets with zero lost‑time incidents and fatalities. Skilled in Development Strategy, Life of Mine analysis, and Drill and Blast design, I combine technical proficiency with strategic foresight to drive operational excellence and sustainable mining success.
SEMINARS AND RESEARCH
- PERHAPI Conference (Mine plan scheduling, Dewatering, Geotech, Drill-Blast open mining, Owning & Operating Cost of Unit), Kendari, 2022.
- Blaster-2 Certification, Government of Indonesia Certification Program, PT. Freeport Indonesia, Tembagapura Papua, 2018.
- Publish Paper “Crown Pillar on Ventilation Drift at Deep Mill Level Zone”, FSME 2016.
- Collage Final Project (On the Job Training) at QAQC Engineering, PT. Indonesia Power, Banten, 2009. Practical understanding in surface coal mining for a whole operating process from blasting, digging, and hauling to processing plant. Selecting the use of coal quality for boiler achieved 85% efficiency to operate power generator 4 X 400 MW.
- Excursion Mining Industry East Java, for Limestone, Sandstone, Quartz mining and processing plan, Mining Engineering Department UPN “Veteran” Yogyakarta, 2007.