Blast Damage Factor D - Note by Dr. Hoek

(April 13, 2012) - The selection of the blast damage factor D is a technical support question that arises frequently in relation to the use of the Hoek-Brown failure criterion. This note by Dr. Evert Hoek...

Phase² Used in 2 Research Papers

(December 07, 2011) - Phase2 has been used in two research papers, both by Dr. Walter Steiner, Dr. Peter Kaiser, Prof. Georg Spaun (published in Geomechanics and Tunnelling). The first paper is...

Phase² Joint Network Verification

(August 31, 2011) - It has been a longstanding misconception in the geomechanics community that the Finite Element Method (FEM) is not well suited to the analysis of blocky or jointed rock masses, and that Discrete...

Slope Angle Optimization using Slide or Phase²

(July 16, 2011) - The slope angle editing tool available in both Slide and Phase2 allows you to easily change the overall slope angle of benched slopes. You can carry out a sensitivity analysis of...

Phase² 8.0 - Fast, Easy FEM

(April 26, 2011) - With new 64-bit and multi-core parallel processing, Phase2 8.0 is capable of solving much larger and more complex models in less time than ever before. This new version is highly recommended...

Cavern Reinforcement & Lining Design Using Phase²

(April 25, 2011) - Cavern Reinforcement and Lining Design is a note prepared by Dr. Evert Hoek in response to a technical support question, submitted to Rocscience, on the issue of reinforcement and shotcrete...

Probabilistic Analyses in Phase² 8.0

(April 24, 2011) - With the financial support from CEMI (Center for Excellence in Mining Innovation) and its sponsors, an alternative approach called the Point ...

New Workshop Using Phase² 7.0

(December 15, 2010) - Golder Associates Africa plans to host a workshop in Gauteng, South Africa: Design and Analysis of Open Pit Slopes Using a 2D Finite Element Modelling Tool, based on the Rocscience software,...

India Tour 2010

(December 15, 2010) - We traveled again to New Delhi to attend the ISRM International Symposium 2010, where Dr. John Curran gave a paper, Effects...

Modeling of Shafts Using Phase²

(October 06, 2009) - Using Phase2, learn about the Modeling of Shafts - in particular, how to perform an axisymmetric analysis and interpret the results.

The Boggo Road Busway Project Using Phase²

(July 07, 2009) - Read about the design and construction of a shallow cover driven busway tunnel under the Boggo Road Jail, heritage-listed buildings on shallow footings, using Phase2. The project was...

Yacambu-Quibor Tunnel Project Using Phase²

(April 14, 2009) - The Yacambú-Quibor tunnel, State of Lara, Venezuela, finally broke through July 27, 2008 after 32 years of technical, financial, contractual and political problems. The 4.0 m diameter...

One Is Not Enough - Joint Networks

(December 16, 2008) - The geometric arrangement of joint networks, in addition to influencing rock mass behavior, causes uncertainty. Read why. You will find out that when modelling excavations in jointed rock...

Phase² 7.0 - Expanding the Frontiers of Geotechnical Engineering

(September 16, 2008) - With the input from our users, our engineer-developers have created this new version, Phase2 7.0. Our attempt to create a cutting-edge geotechnical engineering software tool would not...

Phase² 7.0 Now Using Intel Performance Libraries for Faster Solutions

(September 16, 2008) - The combination of a new data storage scheme and the fast Intel© solver means that even your largest models can now be solved in a reasonable amount of time on a standard PC.

A Road Embankment Failure Near Pentalia, Southwest Cyprus

(May 27, 2008) - In a recent case study of road embankment failure near Pentalia in southwest Cyprus, Phase2 and Slide were used to review the available tools for the analysis of slope...

Integration of Geotechnical and Structural Design in Weak Rock Tunnels

(May 09, 2007) - Dr. Evert Hoek discusses the integration of geotechnical and structural design components by engineers when considering the design of tunnels in weak rock.

UBC Students Tackle Geological Uncertainty Eberhardt

(October 17, 2006) - Each year, as part of their course “EOSC 433 – Geotechnical Engineering Practice”, Geological Engineering students at UBC take up the challenge of investigating geotechnical...

Performance of the SSR MEthod on Reinforced Slope Examples

(October 17, 2006) - Rocscience was recently in Vancouver for the Sea to Sky 2006 Conference. Our paper on the Performance of the SSR Method on Reinforced Slope Examples continues the research using this method in...

The Estimation of Post-Peak Rock Mass Properties

(February 28, 2006) - Using Phase2, Dr. Jason Crowder wrote his Ph.D. thesis on the estimation of post-peak rock mass properties through numerical back analysis and calibrated with in-situ instrumentation data.

Phase 6.01: Why an Update?

(February 28, 2006) - Modifications to the input dialog and computational engine for the Cam Clay and Modified Cam Clay material models are some of the additions to the Phase2 6.01 update.

You've Come A Long Way Baby!

(February 28, 2006) - The Many Phases of Phase2 6.0 - An inside look at the development of a powerful program.

Slope Stability Analysis with the SSR Method

(October 18, 2005) - We believe that the SSR method, facilitated by its implementation in software, is ready for prime time, the point at which it can be applied to the practical, routine analysis of slopes. This...

Influence of Young's Modulus on Modeling Results

(October 18, 2005) - In finite element analyses involving multiple geological materials, predicted stress distributions, deformation patterns, and consequently failure mechanisms are dependent on the ratios of the...

Should We Upgrade to Phase² 6.0?

(April 26, 2005) - Rocscience has released version 6 of Phase2, the popular two-dimensional finite element program for analyzing and designing surface and underground excavations in rock and soil. Read...

New Modeling Shortcuts in Phase²

(April 26, 2005) - Phase2 6.0 contains numerous improvements to the usability of its interface, which make the program easier, faster and more intuitive to use.

Ground Deformations Above a Large Shallow Tunnel

(November 24, 2004) - The Aeschertunnel, a large noncircular shallow tunnel, was excavated using a jet grout arch for primary excavation support where glacial moraine was encountered. Surface deformations were...

Review of Post-Peak Parameters and Behaviour of Rock Masses

(November 24, 2004) - Rocscience and several industry leaders in rock mechanics have been corresponding on the topic of post-peak (residual) rock parameters. The importance of these parameters and their behaviour are...

3D Tunnel Simulation Using the Material Softening Method in Phase²

(November 24, 2004) - How do you simulate the three-dimensional advance of a tunnel using Phase2? How do you get the proper deformation prior to support installation? There are a variety of different methods...

Setting Up the Initial Stress State for Surface Modules Using Phase²

(November 24, 2004) - How do you define the initial stress field under a non-horizontal ground surface? How do I set up the initial stress field under an embankment using Phase2?

Effective Stress Analysis with Phase²

(September 30, 2003) - Did you know that Phase2 can be used for soil applications, as well as for the analysis of rock excavations? This Developer’s Tip demonstrates how to use Phase2 and...

Designing A Shallow Tunnel in a Poor Quality Rock Mass

(June 17, 2003) - The designer has to face a number of problems that do not exist or are less significant in deeper tunnels. Dr. Evert Hoek discusses how these problems are examined using Phase2.

Analysis of the Stability of an Anchor Block for a Suspension Bridge

(February 18, 2003) - In reviewing this analysis, Dr. Hoek defines the parameters of the problem and tests the proposed solutions, using a variety of software tools.

Applying Pseudo-static Loads using Phase²

(October 08, 2002) - How does one apply a seismic load in a particular stage of a sequential excavation? Learn how to apply pseudo-static seismic loads using the software Phase2.

Validation of Cable Bolt Support Design

(June 11, 2002) - Read about new technologies, developed by Mine Design Technologies, used to stabilize a shallow underground mining operation in weak rock that was experiencing problems, using SMART Instuments and...

Design of Support Systems for Underground Excavations

(June 11, 2002) - This short course, given befoer the NARMS-TAC-2002 Conference in Toronto, will examine the design of support systems for excavations in overstressed rock conditions. Three major approaches to rock...

Geotechnical Design Project: University of Alberta

(November 06, 2001) - Civil engineering students in 4th year at the University of Alberta taking the course, CIV E 591 - Geotechnical Design, centred on a design project using Phase2; 24 students ...