Mr. Flynn is an applied physicist with a diverse technical background with over 20 years of experience in instrumentation and measurement systems, with a focus on acoustic emission and ultrasonic monitoring for the past 8 years.
He is the General Manager of the ICL office and also the product manager for ICL’s range of hardware products.
The Fifth International Itasca Symposium will be held at the University of Vienna (Austria). The Symposium will features the application of Itasca software for solving engineering and scientific challenges in geomechanics, hydrogeology, microseismicity, and more.
Mr. Hughes has extensive experience working at ICL on developing enhancements to the InSite application including a new 3D visualizer, tools for velocity model calibration, array analysis, discrete fracture network inversion, source scan location and the real-time triggering of data from miniSEED files and multiple arrays.
He has also revised and enhanced the data acquisition software used with ICL’s laboratory test equipment. His expertise is in the use of the C++ programming language using Visual Studio. In addition to this, he has extensive experience using MFC, OpenGL, HDF5, SQL Server, .NET and TCP/IP socket programming.
In total, he has over 30 years of experience developing software, mainly PC based, but also hosted on embedded and IP telephony platforms. Mr. Hughes holds a B.A. in Physics from Oxford University.
Conventional numerical methods of slope analysis are mainly based on continuum approximation of the rock mass and the assumption of shear failure. Slope Model utilizes a novel approach that performs simulations of selected 3D sectors of rock slope stability in hard, fractured rock masses, consisting of any number of planar benches. The software implements a version of the Synthetic Rock Mass (SRM) approach (Pierce et al., 2007) applied to the specific case of rock slopes. SRM allows movement on joints (sliding and opening) as well as fracture of intact rock. The rock mass contains joint segments derived from a user-specified DFN (discrete fracture network). Non-steady fluid flow and pressure within the network of joint segments are modeled, and several aspects of fluid-rock interaction are represented, such as effective stress (for sliding behavior) and pressure response due to changes in rock geometry (e.g., bench removal). This three-dimensional modeling software is based on a lattice scheme that handles discontinuities and new fractures in the same way as Distinct Element Method (DEM), but is five to ten times faster. Fluid flows in the joints and rock matrix, and the flow network is automatically extended as new fractures form. Slope Model was developed as part of the Large Open Pit (LOP) Project.
Contact us for more information, download selected abstracts, or download our Technology Adaption Program (TAP) leaflet to become involved with Slope Model development.
The left-hand photograph is from Adhikary et al (1997), corresponding to his centrifuge Test 7, showing post-failure deformation of a toppling assembly of layers oriented with initial dips of 69o, and a slope angle of 70o. The right-hand plot is from a lattice simulation of a similar system, after failure (but limited to small strain deformation). The black dots denote broken bonds, and the colored vectors denote displacements (where red is large displacement and blue is small displacement). The red fracture line, derived from the centrifuge result, is superimposed upon the numerical result.
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