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Phase 2 Project Gallery

Phase2 users have created this gallery of example models. Annotation and image processing is done with the Phase2 Interpreter and Microsoft Paint. Models can be read using Phase2 5.0 or higher, or the demo version, available on the Phase2 downloads page.


Underground Powerhouse at Shallow Depth

Phase 2 Model 1
  • View Larger Image (24 KB)
  • Download Phase2 Model (110 KB)



  • Model notes: Three stage excavation of an underground powerhouse and associated excavations, at shallow depth, in a complex geological environment. When viewing the results in Interpreter, set Stage 2 as the reference stage in order to see the displacements induced by excavation.

    Program features: Green lines (see Larger Image) are material boundaries, materials are shown as different colors. Four excavations appear near the bottom of the model.


    Underground Powerhouse with Cast-in-place Concrete Arches

    Phase 2 Model 2
  • View Larger Image (39 KB)
  • Download Phase2 Model (111 KB)



  • Model notes: Ten stage excavation of a large underground powerhouse and transformer cavern with cast-in-place concrete roof arches. The low deformation modulus of the rock mass, compared to that of the concrete, results in large deformations and overstressing of the concrete arch. Hoek-Brown material properties are defined to model the concrete.

    Program features: Contours of vertical displacement. Dark blue lines are cable bolts. Light blue lines (see Larger Image) are cable bolts that will be installed at a later stage.


    Complex Excavation, across Multiple Materials, with Cable Bolts

    Phase 2 Model 3
  • View Larger Image (80 KB)
  • Download Phase2 Model (105 KB)



  • Model notes: Eight stage excavation of large underground powerhouse and transformer gallery in sedimentary rock. A zone of blast damaged rock around each excavation has been included in the model. The caverns are supported by means of tensioned cables. This model uses plain strand cable bolts, and shows Installation of bolts and liners in different stages.

    Program features: Contours of strength factor. Green horizontal lines are material boundaries. Blue lines are cable bolts.


    Complex Excavation, with Stage-dependent Material Properties

    Phase 2 Model 4
  • View Larger Image (80 KB)
  • Download Phase2 Model (105 KB)



  • Model notes: Thirteen stage excavation of a large underground powerhouse at shallow depth. The cavern is supported by rockbolts and the lower half is backfilled with concrete after completion of the excavation to simulate the casting of machine foundations. The rockbolts are removed in the final stage to investigate the consequences of long- term corrosion.

    Program features: Dark blue lines are bolts. Light blue lines (on the excavation boundary) are liners.


    Slope Stability Analysis

    Slide
    Slide image
    Phase 2
    Phase2 image
    Excel
    FS vs. displacement
  • View Larger Phase2 Image (100 KB)
  • View Larger Slide Image (55 KB)
  • View FS vs. displacement
         for FEM analysis (56 KB)

  • Download Phase2 Model (117 KB)
  • Download Slide Model (3.13 KB)



  • Model notes: Performed finite element slope stability analysis of tunnel portal using reduction method. For details on the method read the document "Application of Finite element method to Slope Stability". Phase2 Results were compared to traditional limit equilibrium slope analysis with Slide.

    Program features: Contours show maximum shear strain for predicted slope failure surface.


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