{"id":101896,"date":"2026-06-18T14:33:57","date_gmt":"2026-06-18T14:33:57","guid":{"rendered":"https:\/\/geostru.ai\/en\/products\/rockmechanics\/"},"modified":"2026-07-08T15:35:31","modified_gmt":"2026-07-08T15:35:31","slug":"rockmechanics","status":"publish","type":"page","link":"https:\/\/geostru.ai\/de\/products\/rockmechanics\/","title":{"rendered":"RockMechanics NX"},"content":{"rendered":"
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RockMechanics NX<\/h1>\n<\/div><\/div>\n\n

Web-based limit-equilibrium verification of planar rock-slope stability \u2014 Hoek-Bray geometry, Mohr-Coulomb and Barton-Bandis criteria, active anchors, passive nails, drape and cable meshes. Opens in any browser \u2014 no installs, no hardware keys.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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RockMechanics NX - web-based rock mechanics with AI (RMR, Q, SMR)<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n
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What it does<\/h2>\n<\/div><\/div>\n\n

Six classification systems<\/strong> \u2014 Barton Q, Bieniawski RMR with Romana SMR, RMR Sen, Jasarevic, Robertson SRMR and Singh-Goel, side by side.<\/p>\n<\/div><\/div>\n\n

Derived geotechnical parameters<\/strong> \u2014 cohesion, friction angle and deformation modulus computed from each rating, with the method-specific correlations.<\/p>\n<\/div><\/div>\n\n

Four water states<\/strong> \u2014 ponded water at the toe, uplift on the failure plane, thrust in the tension crack, pervious-slope hydraulic connection \u2014 with four configurable pressure distributions.<\/p>\n<\/div><\/div>\n\n

RQD from three methods<\/strong> \u2014 core recovery (Lc\/Lt), volumetric joint count Jv, or joints per metre, with scoring tables faithful to the originals.<\/p>\n<\/div><\/div>\n\n

AI assistant<\/strong> \u2014 pre-tensioned anchors (NTC \u00a76.6 with \u03be and \u03b3Ra,t), passive nails (NTC \u00a76.7 SoilNail Variant A with Clouterre 1993 N-V interaction), drape mesh R1 and cable panels R2 with full design-resistance breakdown.<\/p>\n<\/div><\/div>\n\n

Built-in Gemini assistant<\/strong> \u2014 when FS falls below target, the auto-designer solves for nail rows, positions and spacing in milliseconds; an optional Gemini-powered AI layer comments the design and proposes motivated refinements.<\/p>\n<\/div><\/div>\n\n

Cloud projects on GeoDropbox<\/strong> \u2014 real-time wedge plot with force vectors and dimensions, plus a navigable 3D model of the block, nails, plates and meshes \u2014 four presets (iso, front, side, top).<\/p>\n<\/div><\/div>\n\n

Word report for every method<\/strong> \u2014 eight-section DOCX with a 99-test validation annex, AutoCAD-ready DXF R12 with wedge, nails, water levels and dimensions, and one-click handoff to Trispace NX via secure 5-minute token.<\/p>\n<\/div><\/div>\n\n

Faithful to the original methods<\/strong> \u2014 every scoring table, formula and classification range transcribed verbatim from the established methods.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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The classification systems<\/h2>\n<\/div><\/div>\n\n

Every system returns its rating, the rock-mass class and the derived geotechnical parameters \u2014 cohesion, friction angle, deformation modulus and GSI \u2014 computed side by side so you can compare them.<\/p>\n<\/div><\/div>\n\n

Barton Q<\/h3>\n<\/div><\/div>\n

The Q-index, a product-and-ratio of six joint parameters (RQD, Jn, Jr, Ja, Jw and SRF) on a logarithmic scale from about 0.001 to 1000 \u2014 for general characterisation and underground works.<\/p>\n<\/div><\/div>\n\n

Bieniawski RMR and Romana SMR<\/h3>\n<\/div><\/div>\n

The RMR rating summed on a 0\u2013100 scale for tunnels, foundations and slopes, extended by Romana's Slope Mass Rating (SMR) for slope stability.<\/p>\n<\/div><\/div>\n\n

RMR Sen<\/h3>\n<\/div><\/div>\n

A simplified, continuous formulation of the RMR.<\/p>\n<\/div><\/div>\n\n

Jasarevic<\/h3>\n<\/div><\/div>\n

The n-index, calibrated for carbonate rock masses.<\/p>\n<\/div><\/div>\n\n

Robertson SRMR<\/h3>\n<\/div><\/div>\n

A rating tailored to slopes in weak rock.<\/p>\n<\/div><\/div>\n\n

Singh & Goel<\/h3>\n<\/div><\/div>\n

The N-index, for tunnels.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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How it works<\/h2>\n<\/div><\/div>\n\n

A guided flow takes you from the geostructural survey to a classified, verified and reinforced slope.<\/p>\n<\/div><\/div>\n\n

1 \u00b7 Survey<\/strong> \u2014 enter the discontinuity attitudes, spacing, persistence, aperture, roughness, weathering and infilling \u2014 or import the survey from GMS or eGeo Compass without re-typing.<\/p>\n<\/div><\/div>\n\n

2 \u00b7 Intact rock & RQD<\/strong> \u2014 the intact-rock strength (Point Load or Schmidt hammer) and the RQD from core recovery, the volumetric joint count Jv or joints per metre.<\/p>\n<\/div><\/div>\n\n

3 \u00b7 Classification<\/strong> \u2014 compute the six systems side by side, each with its rating, rock-mass class and derived c, \u03c6 and deformation modulus.<\/p>\n<\/div><\/div>\n\n

4 \u00b7 Stability<\/strong> \u2014 verify planar sliding by limit equilibrium (and the 3D wedge), with the water state, seismic forces and external loads.<\/p>\n<\/div><\/div>\n\n

5 \u00b7 Reinforcement<\/strong> \u2014 when the factor of safety is short, design anchors, nails and meshes \u2014 or let the auto-designer size the nail pattern for you.<\/p>\n<\/div><\/div>\n\n

6 \u00b7 Report<\/strong> \u2014 export the Word report and the AutoCAD-ready DXF, or hand the project off to Trispace NX.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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Inputs and outputs<\/h2>\n<\/div><\/div>\n\n

What you enter<\/h3>\n<\/div><\/div>\n

Discontinuity survey<\/strong> \u2014 attitude, spacing, persistence, aperture, roughness, weathering, infilling and hydraulic conditions \u2014 typed in or imported from GMS \/ eGeo Compass.<\/p>\n<\/div><\/div>\n\n

Intact rock and RQD<\/strong> \u2014 intact-rock strength (Point Load or Schmidt hammer) and the RQD, from cores or from the joint survey.<\/p>\n<\/div><\/div>\n\n

Slope and water<\/strong> \u2014 the slope and discontinuity geometry, the strength criterion (Mohr-Coulomb or Barton-Bandis), the water state and any seismic or external loads.<\/p>\n<\/div><\/div>\n\n

What you get<\/h3>\n<\/div><\/div>\n

Classifications<\/strong> \u2014 the rating and rock-mass class for each of the six systems, with the derived cohesion, friction angle, deformation modulus and GSI.<\/p>\n<\/div><\/div>\n\n

Stability<\/strong> \u2014 the factor of safety for planar and wedge sliding, with the wedge plot and 3D model.<\/p>\n<\/div><\/div>\n\n

Reinforcement<\/strong> \u2014 the anchor, nail and mesh design with its resistance breakdown.<\/p>\n<\/div><\/div>\n\n

Deliverables<\/strong> \u2014 an eight-section Word report per method and an AutoCAD-ready DXF R12, with handoff to Trispace NX.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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Who it's for<\/h2>\n<\/div><\/div>\n\n

Geotechnical engineers \u00b7 Geologists \u00b7 Slope designers \u00b7 Mining and quarry engineers \u00b7 Infrastructure consultants. RockMechanics NX is built for those who today verify rock-slope stability with spreadsheets or desktop tools, and want a single web environment that goes from limit-equilibrium check to fully-designed reinforcement with traceable normative output.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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Why it's different<\/h2>\n<\/div><\/div>\n\n

Runs directly in the browser, no installation required.<\/p>\n<\/div><\/div>\n\n

Covers Barton Q, Bieniawski RMR + Romana SMR, RMR Sen, Jasarevic, Robertson SRMR and Singh-Goel.<\/p>\n<\/div><\/div>\n\n

Each method computes the rating, the rock-mass class and the derived geotechnical parameters.<\/p>\n<\/div><\/div>\n\n

Tabbed input for every parameter (RQD, Jn, Jr, Ja, Jw, SRF and more), faithful to the desktop methods.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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Frequently asked questions<\/h2>\n<\/div><\/div>\n\n

Which classification should I choose?<\/strong>
For a general characterisation or for underground works, start from Barton's Q-index or Singh & Goel's N-index. For slope stability use Romana's SMR; for soft rock turn to Robertson's SRMR; for carbonate rock masses, Ja\u0161arevi\u0107's n-index is calibrated.<\/p>\n<\/div><\/div>\n\n

What's the difference between the Q-index and RMR?<\/strong>
Bieniawski's RMR is a sum of ratings on a 0\u2013100 scale; Barton's Q-index is a product-and-ratio of six joint parameters on a logarithmic scale, typically from 0.001 to 1000.<\/p>\n<\/div><\/div>\n\n

How do I estimate RQD without borehole cores?<\/strong>
From the discontinuity survey \u2014 with the Palmstr\u00f6m relation RQD = 115 \u2212 3.3\u00b7Jv, or the Priest and Hudson formula from the average number of joints per linear metre.<\/p>\n<\/div><\/div>\n\n

Can I import the survey from GMS or eGeo Compass?<\/strong>
Yes. RockMechanics NX reads geostructural survey data from GMS and eGeo Compass, so you do not have to re-enter the attitudes by hand.<\/p>\n<\/div><\/div>\n\n

What's the difference between planar and wedge sliding?<\/strong>
Planar sliding is movement along a single discontinuity (2D); wedge sliding concerns a tetrahedral wedge bounded by two intersecting discontinuities, analysed in 3D.<\/p>\n<\/div><\/div>\n\n

How do I obtain the cohesion, friction angle and modulus of the rock mass?<\/strong>
They are derived automatically from the classifications, using established correlations, to return the cohesion, friction angle and deformation modulus.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n

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Ready to start with RockMechanics NX?<\/h2>\n<\/div><\/div>\n\n

Choose your plan and start using RockMechanics NX today. Runs in the browser, always up to date, no installation required.<\/p>\n<\/div><\/div>\n\n\n\n\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":0,"parent":101181,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_ai_seo_pilot_schema_type":"auto","footnotes":""},"class_list":["post-101896","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/pages\/101896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/comments?post=101896"}],"version-history":[{"count":2,"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/pages\/101896\/revisions"}],"predecessor-version":[{"id":102107,"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/pages\/101896\/revisions\/102107"}],"up":[{"embeddable":true,"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/pages\/101181"}],"wp:attachment":[{"href":"https:\/\/geostru.ai\/de\/wp-json\/wp\/v2\/media?parent=101896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}