Laserfiche WebLink
Peng Syd. S.: Surface Subsidence Engineering 1992, published by Society for Mining, and <br />Exploration, Inc., Littleton, CO. <br />Roposki, S., and R.D. Lama: Subsidence in the Near - Vicinity , of a Longwall Face. International <br />Journal of Rock Mechanics Min. Sci. and Geomech. Abstracts, pp. 105-118, 1973 <br />Sikora, S.: Methods for Working Thick Seams and Research on Increasing Their Effectiveness. <br />Symposium of Thick Seam Mining by Underground Methods. The Australian Institute of <br />Mining and Metallurgy, Central Queensland Branch, pp. 93-106, 1976 <br />United States Department of Agriculture: Soil Survey of Paonia Area, Colorado. Soil <br />Conservation Service, U.S. Government Printing Office, 1980 <br />Wardell, K. and Eynon, P., 1968, Structural Concept of Strata Control and Mine Design, <br />Institution of Mining and Metallurgy Transactions, Section A, Mining Industry, Vol. 77, pp. Al25- <br />A150; also The Mining Engineer, Vol. 127, pp. 633 -651. <br />Wardell, K. and Partners: Guidelines for Mining near Surface Waters. Phase II - Rept. for <br />Bureau of Mines Contract No. H0252021, 37 p., Feb., 1976 <br />• Wardell, K. and Partners: Guidelines for Mining Near Surface Waters: Phase III - Rept. for <br />Bureau of Mines Contract No. H0252021, 50 p., May, 1976 <br />Wardell, K.: The Effects of Mineral and Other Underground Excavations on the Overlying <br />Ground Surface. Proceedings of the Symposium on Geological and Geographical Problems of <br />Areas of High Population Density, Washington, D.C., pp. 2011 -217, 1970 <br />Whittaker, B.N., R.H. Singh, and C.J. Neate: Investigation and Evaluation Studies of Surface <br />and Subsurface Drainage Pattern Changes Resulting from Longwall Mining Subsidence. First <br />International Mine Drainage Symposium, Denver, Colorado, May 20 -23, 1979 <br />Williamson, W.H.: Hydrogeological Aspects of Coal Mining Under Stored Waters near Sydney, <br />Australia. SIAMOS - 78, Granada, Spain, pp. 309 -328, 1978 <br />Wilson, A.H.: Research into the Determination of Pillar Size, Part 1, An Hypothesis Concerning <br />Pillar Stability. The Mining Engineer, Vol. 131, No. 141, 1972. <br />• <br />TR -65 -35- 02/10 <br />�t /16 /rr� <br />