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.
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.
Typical sedimentary sequences overlying coal seams consist of interbedded sandstones, siltstones, shales, and rider coal seams. In many surface coal mine settings, these sediments are saturated; and prior dewatering of them is necessary for effective and economic mining, including the stacking of saturated spoils. Such sedimentary sections usually have a very low vertical hydraulic conductivity that does not allow them to drain in a timely manner prior to their being stripped. One potential solution is installation of drainwells. Drainwells are small diameter wells that can collect water laterally from the various more permeable layers in the overburden and then gravity drain it to a lower layer – often the coal seam being mined – where it can be removed by pumping wells or sumps located in the bottom of the pit. A ground-water flow model utilizing the 3-dimensional finite element code MINEDW has been used to evaluate the effectiveness of using drainwells in a hydrogeologic setting that is typical of the Powder River Basin. A series of numerical simulations were completed using various combinations and spacings of drainwells and pumping wells to dewater the overburden and coal seams. The numerical simulations suggest that drainwells can be a very effective method of overburden dewatering.
Howell, R.L., L.C. Atkinson, and H. Liu. 2000. Numerical evaluation of effectiveness of drainwells in dewatering overburden at surface coal mines. Society for Mining, Metallurgy, and Exploration Annual Meeting, Salt Lake City, Utah, 28 February-1 March.
Dewatering a Coal Mine.pdf
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