{"id":17,"date":"2014-12-17T07:48:07","date_gmt":"2014-12-17T07:48:07","guid":{"rendered":"http:\/\/staffpages.uofk.edu\/elfadil-azrag\/?page_id=17"},"modified":"2016-09-21T09:07:36","modified_gmt":"2016-09-21T09:07:36","slug":"conferencesworkshops-seminars","status":"publish","type":"page","link":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/?page_id=17","title":{"rendered":"Conferences,Workshops &#038; Seminars"},"content":{"rendered":"<h2><strong>\u00a0<\/strong><\/h2>\n<ul>\n<li>Symposium on Mine Water and Environmental Impacts, Johannesburg, Republic of South Africa, 7-13 September 1998.<\/li>\n<\/ul>\n<ul>\n<li>PTFI Modeling Training Workshop, Instructed by Elfadil Azrag, HCI, Tembagapura, Irian Jaya, Indonesia August 1998.<\/li>\n<\/ul>\n<ul>\n<li>Hydraulics Division of the American Society of Civil Engineers 1993 Conference, San Francisco, USA, 25-30 July 1993.<\/li>\n<\/ul>\n<ul>\n<li>Computational Methods in Water Resources IX Conference, Denver, USA, June 1992.<\/li>\n<\/ul>\n<ul>\n<li>\u00a0 International Course on Urban Drainage in Developing Countries, Essen, Federal Republic of Germany, November 12-30, 1990.<\/li>\n<\/ul>\n<ul>\n<li>Seminar in Natural Coagulants in Water Treatment, Yogyakarta, Indonesia, October 1989 .<\/li>\n<\/ul>\n<ul>\n<li>Microbiological for Sanitary Engineers: Application to Wastewater treatment Plants Operation, University of Leeds, Leeds, UK, May 1988.<\/li>\n<\/ul>\n<p><strong><em>Research and Development within HCI:<\/em><\/strong><\/p>\n<h4>MINEDW and FEMCAD Code development<\/h4>\n<p><strong>Scope: <\/strong>HCI has developed a state-of-the-art, three-dimensional, finite element ground-water flow code to simulate mine dewatering in complex hydrogeologic systems. This code, designated <strong><em>MINEDW<\/em><\/strong>, can be used to:<\/p>\n<ul>\n<li>Estimate passive inflows (i.e., with no active dewatering facilities such as wells in operation) to pits and under\u00adground openings under two-regime (i.e., both laminar and non-laminar) flow conditions,<\/li>\n<\/ul>\n<ul>\n<li>Evaluate potential effects of alternative active dewatering systems,<\/li>\n<\/ul>\n<ul>\n<li>Simulate the infilling of a &#8220;pit lake&#8221; after mining and dewatering cease,<\/li>\n<\/ul>\n<ul>\n<li>Predict local and regional environmental impacts of dewatering, and<\/li>\n<\/ul>\n<ul>\n<li>Estimate the height of seepage faces in pit highwalls to assist in evaluation of slope stability.<\/li>\n<\/ul>\n<p><strong>Role: <\/strong>Currently I am the custodian of the program within HCI<strong>. <em>MINEDW<\/em><\/strong> was original written by Timothy J. Durbin I verified, tested, and modified the original code to handle more diverse hydrologic feature among the important changes that I included in the code:<\/p>\n<ul>\n<li>Collapsing grid to handle gradual pit excavation.<\/li>\n<\/ul>\n<ul>\n<li>Simulation of high-flow and high-pressure drill holes usually in the underground mine workings.<\/li>\n<\/ul>\n<ul>\n<li>\u00a0Routing of natural streams networks where interaction with ground-water is a function of stage within the stream and head in the aquifer.<\/li>\n<\/ul>\n<ul>\n<li>Introduction of \u201cmass lumping\u201d technique versus \u201cthe consistent solution\u201d<\/li>\n<\/ul>\n<ul>\n<li>Incorporation of 3-D full conductivity tensor.<\/li>\n<\/ul>\n<ul>\n<li>\u00a0Incorporation of solution for large diameter wells and simulation of inundated mine\u2019s underground workings.<\/li>\n<\/ul>\n<ul>\n<li>\u00a0Incorporation of dynamically changing hydraulic properties of rock mass.<\/li>\n<\/ul>\n<ul>\n<li>\u00a0Simulation of non-linear (non-Darcian) flow in the modeled faults.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Symposium on Mine Water and Environmental Impacts, Johannesburg, Republic of South Africa, 7-13 September 1998. PTFI Modeling Training Workshop, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"page-publications.php","meta":{"footnotes":""},"class_list":["post-17","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/pages\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17"}],"version-history":[{"count":1,"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/pages\/17\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=\/wp\/v2\/pages\/17\/revisions\/18"}],"wp:attachment":[{"href":"https:\/\/staffpages.uofk.edu\/elfadil-azrag\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}