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MP NX — Piles and micropiles

MP NX analyses and designs a single foundation pile or a single micropile: ultimate vertical and lateral load, design resistances to NTC 2018 and EN 1997-1, internal forces along the shaft from a finite-element model, reinforced-concrete section check, reinforcement cage and settlement. The calculation engine is that of MP, the GeoStru desktop program for piles, brought to the web.

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Who it is for

Geotechnical and structural engineers, geologists, design offices and contractors who need to size a pile or a micropile and deliver a calculation report. Interface and report are available in Italian and English.

What it does

  • Ultimate vertical load (base + shaft) for each investigation vertical, in compression and in tension, with multiple stratigraphies, water table, undrained layers, rock layers, negative skin friction and tapered piles.
  • Characteristic and design resistances with the correlation factors ξ3 and ξ4 and the factors γb, γs: NTC 2018, EN 1997-1 (also with the Romanian national annex) or global factors.
  • Ultimate lateral load with Broms' method.
  • Micropiles, Tubifix and Radice, with bulb, bar or tubular reinforcement.
  • FEM analysis of the pile as a beam on Winkler elastic soil, linear or non-linear.
  • ULS check in bending with axial force and in shear of the circular section, node by node, with the N-M interaction domain, the cage shop drawing and the bar schedule.
  • Settlement of the single pile with the Poulos and Davis method.
  • Calculation report in Word and PDF, DXF drawing, 2D and 3D views.

You enter the data in the cards of the Parameters tab; the preview on the right follows every change.

MP NX Parameters tab: project tree on the left, data cards in the middle, section preview on the right

What it does not do

MP NX covers the single pile and the single micropile. It does not cover:

  • pile groups and group efficiency;
  • screw piles, jet grouting, stone columns, steel or timber piles;
  • micropile networks, raked micropiles, critical buckling load of the micropile;
  • node-by-node ULS check of the composite tube + grout section of the tubular micropile;
  • settlement with Fleming's hyperbolic method, dynamic formulae, pressuremeter tests as a pile input;
  • the full NTC seismic hazard and kinematic bending moments: seismic action enters as a correction of the ultimate load, starting from a/g.

The limits of the model are discussed in Code validation.

How you pay

MP NX runs on credits, charged only when an operation succeeds.

Operation Credits
Calculate 8
FEM analysis and section design, when enabled + 5
DXF drawing or cage DXF 10
Report (Word or PDF) 10
Message to the AI assistant 3

Preview, drawings, 3D view, report preview, saving the project and the PNG image of the section cost no credits. If an operation fails, nothing is charged. Changing the rules of the cage shop drawing redraws it at no charge.

Where to start

  1. Quick start — from the opening project to the report in 5 minutes.
  2. Pile and footing, Micropiles, Materials — geometry and section.
  3. Stratigraphies and water table — the ground and the investigation verticals.
  4. Loads, combinations and design code — actions, signs and factors.
  5. Ultimate load, FEM analysis, Sections and reinforcement, Settlements — the results.
  6. Report, exports and assistant, Example projects, Code validation, FAQ.

Found an error on this page? Let us know or open a Pull Request.