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RockTech NeXus
RocklyticsClosed beta

Preliminary rock mechanics, from rock-mass classification to support and stability.

Rocklytics runs published rock-mechanics and geotechnical methods in one browser workspace. Inputs carry explicit units, assumptions and warnings stay next to each result, and a value without a published source is labelled as engineering judgement or withdrawn, so a qualified engineer can see how each result was reached.

  • Beta 1.0.0
  • 33 calculation modules plus a workflow engine
  • PDF, DOCX and XLSX export
Apply for the Rocklytics betaSign in to Rocklytics
Rocklytics dashboard titled Geomechanics Workflow Overview: six numbered workflow cards from stress context to export, above worked examples with their synthetic results
Geomechanics workflow overviewProduct capture · 14 Oct 2026 · Rocklytics 1.0.0 · synthetic data

WHO IT IS FOR

Built for engineers who check ground before they model it.

  • Tunnelling and underground engineers

    Stress around openings, ground reaction, support and settlement before detailed modelling.

  • Slope and geotechnical engineers

    Kinematic screening, limit-equilibrium slope checks, foundations and earth pressure.

  • Engineering geologists

    Rock-mass classification, strength parameters and discontinuity orientation data.

MODULES

What Rocklytics calculates.

33 calculation modules plus a workflow engine. Grouped by the engineering question they answer. Each module states its inputs, units and assumptions. Where the October 2026 literature audit found no source for a value, the app labels it “Engineering judgement: no source in the literature” until it is sourced or removed; see the validation register.

Stress around openings

3 modules

Closed-form and conformal-mapping stress solutions around underground openings.

Method guides

  • Kirsch (polar)Stresses and displacements around a circular opening, in polar coordinates.
  • Kirsch (cartesian)The stress field around circular and elliptical openings on a Cartesian grid.
  • Conformal mappingBoundary and interior stresses around rectangular, square and D-shaped openings.

Rock and joint strength

5 modules

Strength envelopes for intact rock, rock mass and joints, and rock-mass modulus.

Method guides

  • Hoek-BrownGeneralised Hoek-Brown parameters, rock-mass strength, equivalent c′ and φ′, and modulus.
  • Mohr-CoulombThe linear shear-strength envelope, Mohr circle and factor of safety on a plane.
  • Barton-BandisJoint shear strength from JRC, JCS and the basic friction angle.
  • Barton-Bandis scale correctionLaboratory-scale JRC and JCS corrected to block scale.
  • ERM libraryRock-mass deformation modulus (Erm) compared across six empirical methods.

Rock-mass classification

10 modules

The rating systems used to characterise rock mass for tunnels, slopes and mines.

Method guides

  • RQDRock quality designation from core lengths or the volumetric joint count.
  • RMRRock mass rating (RMR89, with RMR14 selectable).
  • GSIGeological strength index from quantified inputs or the chart.
  • Q-systemBarton’s Q, support pressure and the equivalent dimension.
  • Q-TBMTBM penetration and advance-rate prognosis.
  • Q-slopeThe Q-slope value and the stable slope angle it implies.
  • RMiPalmström’s rock mass index.
  • MRMRLaubscher’s mining rock mass rating and cavability.
  • SMRSlope mass rating from RMR and the slope-joint orientation factors.
  • Mathews-PotvinThe stability number N′ for open stopes on the stability graph.

Structural geology

1 module

Discontinuity orientations from mapping or core, plotted and grouped into sets.

  • StereonetEqual-area plots, joint sets, density contours and kinematic wedge screening.

Tunnelling and support

6 modules

Ground response, support selection and surface settlement for tunnels.

  • Stability factorHoek-Brown strength over Kirsch wall stress around the opening.
  • Convergence-confinementGround reaction, support characteristic and longitudinal displacement curves.
  • Support designBolt length and spacing, shotcrete and steel sets from the rock-mass class.
  • Wedge supportWedge force balance and factor of safety, with a support progression.
  • Bolt anchorageBond length and tendon steel capacity for rock bolts and anchors.
  • Tunnel settlementThe surface settlement trough, horizontal strain and building damage category.

Slope stability

4 modules

Limit-equilibrium and kinematic checks for soil and rock slopes.

  • BishopSimplified Bishop factor of safety on circular slip surfaces, with a critical-circle search.
  • FelleniusOrdinary method of slices factor of safety, with external loads.
  • Spencer / Morgenstern-PriceRigorous limit-equilibrium factor of safety on circular and non-circular surfaces.
  • RockfallKinematic screening, travel-angle reach and catch-ditch sizing.

Foundations and soil

3 modules

Preliminary foundation, retaining-wall and settlement checks.

  • Bearing capacityShallow-foundation bearing capacity from the general equation.
  • Earth pressureActive, passive and at-rest earth pressure (Rankine, Coulomb, Jaky).
  • 1-D consolidationTerzaghi consolidation settlement and how it develops over time.

Ground-investigation data

1 module

Getting borehole data into the workspace.

  • GI data importBorehole data read from CSV, JSON or AGS4, with per-borehole statistics.

HOW IT WORKS

From method to reviewable result.

  1. Step 1

    Choose the method

    Open a module from the library, or follow a guided workflow that orders the modules for a tunnel, slope, foundation or structural-geology question.

    Rocklytics Workflow Builder: modules grouped by domain as selectable chips, beside an eleven-step custom tunnel design workflow that lists the values each step takes from earlier steps
    Choosing a methodProduct capture · 14 Oct 2026 · Rocklytics 1.0.0 · synthetic data

  2. Step 2

    Enter and check inputs

    Work with explicit units, required fields and method-specific guidance and warnings.

    Rocklytics Hoek-Brown module: rock-mass inputs with units (GSI, intact UCS in MPa, mi, disturbance factor) beside result cards and the principal-stress and shear-strength envelope charts, from synthetic inputs
    Inputs with explicit unitsProduct capture · 14 Oct 2026 · Rocklytics 1.0.0 · synthetic data

  3. Step 3

    Run linked methods

    Carry results from one method into the next while each step’s status and checks stay visible.

    Rocklytics workflow workspace showing five successful synthetic workflow nodes
    A linked run of five methodsProduct capture · 13 Sep 2026 · Rocklytics 1.0.0 · synthetic data

  4. Step 4

    Review the results

    Inspect outputs, intermediate values, assumptions and warnings before deciding the next step.

    Rocklytics Kirsch circular-opening results: far-field and wall stress cards, a stress-to-strength handoff note with its stated limitation, and radial and tangential stress profiles along the wall and roof, from synthetic inputs
    Results for reviewProduct capture · 14 Oct 2026 · Rocklytics 1.0.0 · synthetic data

SCOPE AND LIMITS

Where Rocklytics stops.

Rocklytics supports preliminary assessment and engineering judgement. It does not replace site investigation, qualified review or numerical analysis where those are required.

Evidence boundary
Rocklytics implements published methods. Where a constant, threshold or rule has no published source, the app labels it as engineering judgement or withdraws it. The tunnel workflow is documented in a peer-reviewed study; that evidence covers its defined scope, not every module.
Review the methodology

Known limits

  • Preliminary assessment only. Not a replacement for numerical modelling or site investigation.
  • Method applicability depends on ground conditions and engineering judgement
  • Access is by request during closed beta
Rocklytics contour plot of major principal stress around a circular opening, with its colour bar in MPa and x and y axes in metres, from synthetic inputs
Stress contour around a circular openingProduct capture · 14 Oct 2026 · Rocklytics 1.0.0 · synthetic data

QUESTIONS

Rocklytics, in plain terms.

What is Rocklytics?
Rocklytics runs published rock-mechanics and geotechnical methods in one browser workspace. Inputs carry explicit units, assumptions and warnings stay next to each result, and a value without a published source is labelled as engineering judgement or withdrawn, so a qualified engineer can see how each result was reached.
Is Rocklytics generally available?
No. It is in closed beta, with access by request. Access is approved per applicant rather than open registration.
How do I get access?
Apply on the shared beta form and choose Rocklytics. Each application is reviewed by hand. Apply for the Rocklytics beta
Do results replace engineering review?
No. Rocklytics supports preliminary assessment; a qualified engineer decides whether a method is appropriate.
What does beta access cost?
Rocklytics is free during the closed beta. Access and commercial terms are discussed during evaluation. See access options
Can I evaluate with my team?
Yes. Team and organisational evaluation is available through a scoped pilot. Discuss a Rocklytics pilot

Evaluate Rocklytics.

Rocklytics is in closed beta. Access is by request.

Apply for beta access

For individual engineers. Each application is reviewed by hand.

Apply for the Rocklytics beta

Already approved?

Sign in to the Rocklytics app. It opens in a new tab.

Sign in to Rocklytics

Evaluating as a team?

Discuss a scoped pilot on a representative workflow.

Discuss a Rocklytics pilot