Independent geotechnical
judgment for critical mining decisions.
For technical leaders, study teams, and operations facing high-consequence decisions in open pit, underground, and transition environments.
Delivered through independent remote advisory focused on interpretation, decision quality, and critical review.
We work where models, data, and reality do not fully align — and where the decision still has to be made.
VSKY.GEO is a founder-led mine geotechnical advisory
Founder & Principal Advisor
Dr. Alex Vyazmensky
Ph.D. in Rock Mechanics (SFU) · M.A.Sc. in Soil Mechanics (UBC) · Diploma in Computer Programming · Diploma in Civil (Geotech) Engineering
With more than 20 years of geotechnical experience, Alex has worked across senior corporate, operational, study, and independent advisory roles in complex mining settings. His background spans open pit slopes, underground geomechanics, pit-to-underground transition, life-of-mine review, owner’s-side study support, monitoring integration, and numerical modelling. He works where geological uncertainty is material, the technical stakes are high, and decisions must remain grounded in both engineering discipline and operational reality.
His work has contributed to measurable technical and operational outcomes, including pit optimization, production uplift through geotechnical optimization, building geotechnical capability across multiple operations, and stronger monitoring and governance systems in high-consequence environments.
VSKY.GEO is built around one idea: better geotechnical decisions under uncertainty.
The practice focuses on independent review, clearer interpretation, and stronger decision support where confidence must be earned, not assumed.
Selected experience across mining companies
Rio Tinto: Underground · Projects · Due diligence · Block caving geomechanics
Hindustan Zinc: Underground · Pit-to-UG transition · Operations · Group geotechnical lead
KAZ Minerals: Open pit and underground oversight · Capability build from ground zero
Polyus: Open Pit · LOM optimization · Pit-to-UG transition project
Most geotechnical failures are not caused by the absence of analysis.
They are caused by decisions made with incomplete information, misinterpreted evidence, or confidence that exceeds what the data can support.
VSKY.GEO focuses on improving how those decisions are made — under uncertainty, with incomplete information, and high consequences.
How VSKY.GEO Supports Critical Decisions
Independent geotechnical judgment for decisions where uncertainty materially affects value, timing, or risk.
Independent Technical Review
Review of geotechnical models, assumptions, and designs before major commitments. Owner’s-perspective oversight focused on robustness and readiness.
Strategic Geotechnical Advisory
Senior input on choices that affect value, risk exposure, and long-term stability. Bridges technical interpretation and mining trade-offs.
Model Confidence & Risk Review
Clear assessment of what is known, uncertain, and decision-relevant. Supports accountable risk ownership by senior decision-makers.
Ongoing Remote Decision Support
Ongoing senior input on evolving geotechnical conditions, critical reviews, and decision follow-through where continuity of judgment matters.
Decision-focused review notes, challenge sessions, technical memoranda, executive summaries, and ongoing advisory support.
Where the Work Begins
VSKY.GEO engagements are structured around the decision at hand.
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Confidential discussion
We begin with the asset, the decision, and the uncertainty that matters.
Focused review
Relevant models, evidence, and assumptions are reviewed against the decision that must be made.
Independent technical view
You receive a concise view of the key issues, decision implications, and recommended next steps.
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Targeted follow-on support
Where conditions continue to evolve, support can extend through periodic review or event-driven advisory.
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When to Call
Independent geotechnical judgment is most valuable when the decision cannot wait, the interpretation is still uncertain, or the consequences of error are material.
Compressed Decision Windows
When interpretation remains uncertain but decisions cannot wait.
Pit-to-underground transition
When interaction risk is high and assumptions require challenge across disciplines.
High-consequence study review
Before major commitments, when designs, assumptions, or consultant outputs need independent challenge.
Stress-test assumptions
When the accepted model appears coherent, but critical assumptions have not been challenged across plausible scenarios.
Executive-level risk decisions
When uncertainty, consequence, and business value must be framed clearly for senior decision-makers.
Unexpected ground behaviour
When new evidence contradicts the current interpretation and the decision basis needs to be revisited quickly.
Recent case:
LOP Expansion Design Basis Review
Independent review of the geotechnical basis for pit expansion. Identified critical weaknesses in geotechnical data interpretation and slope stability assessment, and defined a practical action plan to support a defensible life-of-mine pit design.
Why remote advisory works
The critical decisions are not made where the rock is exposed.
Independent geotechnical review creates distance from operational bias and day-to-day pressure. By focusing on decision quality rather than data collection, remote advisory enables faster iteration and brings cross-site perspective that is often unavailable at the operation level.
The model works best when site teams own observation and execution, while independent advisory strengthens interpretation and technical judgment. When uncertainty is high and the cost of error is material, that combination supports clearer risk framing, stronger challenge of assumptions, and better decisions.
Mine value is often determined in a few degrees of slope angle or a few meters of stope span.
VSKY.GEO Insights Series.
Selected insights on uncertainty, model confidence, decision quality, digital twins, and the economics of geotechnical judgement.
Why geotechnical engineering is ultimately a discipline of judgement under incomplete knowledge.
Three concepts that are often blurred in practice — and why that weakens critical decisions.
Why model outputs often appear stronger than the knowledge that supports them.
Why failures often persist not because of missing analysis, but because of weak interpretation, governance, and response discipline.
Why mine value is often won or lost in early design assumptions, slope angles, and stope geometry.
Why distance can improve judgement when the decision matters more than physical proximity.
Why most mining twins are still models or shadows, and what makes a true twin decision-relevant.
In mining, geotechnical risk is not controlled by better models alone, but by the strength of the decision system around them.
Composite geotechnical confidence and reliability metrics are useful only as aids to judgement, but can be dangerous if misused.
Software access can create a subtle illusion: that because a model is now easier to build, it is also easier to believe.
Independent Geotechnical Advisory for Strategic Mining Decisions.
CONTACT:
vsky.geo@outlook.com
Based in UAE.