Conference Program
Explore our lineup of eminent keynote speakers and immersive pre-conference workshops designed to advance rock engineering.
Keynote Speakers
Okky Chandra Perdana, S.T., M.T.
Operational Director
PT. Anggun Permai Tekindo
Okky Chandra Perdana, ST, MT is a seasoned mining engineering professional with over 20 years of experience in coal mining, tunneling, geotechnical, and concrete services. He holds a Bachelor’s and Master’s degree in Mining Engineering from UPN Veteran Yogyakarta, specializing in Geomechanics, as well as a Master’s degree in Strategic Management from Prasetiya Mulya University.
Currently serving as Operational Director of PT Anggun Permai Tekindo and Director of PT Aptekindo Mitra Solusitama, he brings strong leadership, extensive technical expertise, and a solid track record in managing large-scale mining projects across Indonesia, with a firm commitment to professionalism, innovation, and sustainable industry development.
Neal Harries
Director - Mine Monitoring APAC
Hexagon Geosystems
As Senior Director of Hexagon Mine Monitoring, Neal Harries leads the mine monitoring business across the Asia Pacific region, spanning from Armenia through to New Zealand.
Neal holds a PhD in Rock Mechanics from The University of Queensland, completed under the supervision of Prof. E.T. Brown between 1995 and 2001. Following his studies, he held several roles as a senior research engineer in geotechnics and as a consulting geotechnical engineer across both civil and mining projects.
Since joining Hexagon in January 2011, Neal has held a number of senior leadership positions, including leading Product Management teams, driving New Business initiatives (including Technology Partnerships and Autonomous Mining Strategy), and overseeing the North American Mining business.
With over 30 years of experience in the mining industry, Neal remains passionate about supporting the sector in effectively managing geotechnical hazards at operational mines, and continues to be inspired by the critical role monitoring plays in improving safety and performance.
Dr. techn. Indra Noer Hamdan, S.T., M.T.
Expert Team Member / Head of NGC
Road Safety and Road Tunnels Commission / ITENAS
Dr. techn. Indra Noer Hamdhan, S.T., M.T. is the Head of the National Geotechnics Center (NGC) at the Institut Teknologi Nasional (ITENAS), Bandung, Indonesia, and a full-time faculty member in the Department of Civil Engineering. He is a geotechnical engineering expert with extensive academic and professional experience in soil mechanics, engineering geology, foundation engineering, slope stability, numerical modeling, and underground construction, with particular expertise in tunnel engineering.
Dr. techn. Indra Noer Hamdhan received his Bachelor's and Master's degrees in Civil Engineering from the Bandung Institute of Technology (ITB), Indonesia, and earned his Doctor of Technical Sciences (Dr. techn.) from Graz University of Technology (TU Graz), Austria, one of Europe's leading universities in engineering and applied sciences.
In addition to his academic responsibilities, Dr. techn. Indra Noer Hamdhan serves as a Bentley Channel Partner in Indonesia, supporting the implementation of advanced engineering software for education, research, and professional engineering practice. His research interests include geotechnical engineering, tunnel engineering, soil–structure interaction, finite element analysis, deep excavations, and performance-based geotechnical design.
Lufi Rachmad M.Eng
Managing Director and Principal
GEOMINE Mining
Lufi has 29 years of experience in geotechnical, mine design, mine operation, and mine management. He graduated from Institut Teknologi Bandung, majoring in Mining Engineering in 1996 (cum laude), and earned his Master's degree from Colorado School of Mines (CSM) in 1997.
He worked at PT Freeport Indonesia, Freeport McMoran New Orleans, BHP Nickel West, St Barbara Gwalia, and Baramulti Coal group with various technical and senior management position before establishing a consulting company, GEOMINE Mining and Geotechnical Consultant.
Lufi earned the KCMI Competent Person Indonesia, JORC Competent Person and is a Fellow Member of AusIMM. He has been actively contributing to the PERHAPI organization and is the past chairman of Kombers KCMI IAGI PERHAPI. He has been the Indonesian representative for CRIRSCO (Committee for Mineral Reserves International Reporting Standards) since 2017 and has been elected as the CRIRSCO Executive Secretary from 2023-2026.
Alessandro Maggioni
Product Manager Soil and Rock Equipment
CONTROLS Group
Alessandro Maggioni serves as the Product Manager of the Soil Mechanics business unit at CONTROLS Group, a position he has held since November 2011. He specializes in testing equipment for the construction industries, managing both standard and advanced equipment for soil mechanics laboratories.
He holds a Master of Science and a Bachelor of Science in Civil Engineering from the Politecnico di Milano. His foundational education includes a Scientific High School Degree from the Istituto Statale di Istruzione Superiore “Leonardo da Vinci” in Cologno Monzese.
Pre-Conference Workshops
Date
14 July 2026
Practical Application of Geotechnical Solutions for Risk Mitigation and Ground Support
Presented By
Workshop Overview
To Be Announced (TBA)
Presenter Background
Digital Monitoring and Data-Driven Decision-Making for Safer Mining Operations
Presented By
Workshop Overview
To Be Announced (TBA)
Presenter Background
Dwiki Maulana, M.Eng.
Manager of Mine Monitoring, IDS GeoRadar Indonesia
Manager of Mine Monitoring Center at Hexagon (IDS GeoRadar) with extensive experience in advanced monitoring technology since 2019. He specializes in geotechnical monitoring and radar data analysis for slope stability and risk mitigation. With a strong background in Geological Engineering, he delivers reliable, data-driven solutions to enhance mine safety.
Adhityo Susilo Nugroho, S.T.
Product Manager – Structural Monitoring & CORS, PT Leica Geosystems Indonesia
Product Manager for Structural Monitoring & CORS at PT Leica Geosystems Indonesia, with extensive experience in geodetic monitoring technology since 2006. He specializes in structural and mine monitoring using Robotic Total Stations and GNSS equipment, with a strong focus on slope stability monitoring. With a geodetic engineering background, he delivers reliable, technology-driven monitoring solutions for critical infrastructure and operations.
3D Geological Modelling for Geotechnical and Rock Engineering Applications
Presented By
Workshop Overview
To Be Announced (TBA)
Presenter Background
Numerical Modelling for Geotechnical and Rock Engineering Applications
Presented By
Workshop Overview
Dr. techn. Indra Noer Hamdhan will discuss advanced methodologies for simulating tunnel construction using PLAXIS 2D and PLAXIS 3D, with an emphasis on understanding ground–structure interaction during tunnel excavation. The presentation will explore the application of the Stress Reduction Method (β-method) for representing stress redistribution and load sharing between the surrounding ground and tunnel lining, as well as practical approaches for determining appropriate stress reduction factors in two-dimensional numerical analyses. The session will further examine the capabilities and limitations of both 2D and 3D numerical modeling, highlighting the circumstances under which each approach is most appropriate. Particular attention will be given to the importance of three-dimensional analysis for evaluating tunnel face stability, sequential excavation, and complex construction stages that cannot be adequately represented using simplified two-dimensional models. Drawing upon both research and practical engineering experience, Dr. techn. Indra Noer Hamdhan will demonstrate how advanced numerical modeling can be applied to predict ground deformation, lining response, and surface settlement, ultimately supporting safer, more reliable, and performance-based tunnel design and construction.