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International Journal of Mining and Geo-Engineering، جلد ۴۶، شماره ۲، صفحات ۱۴۱-۱۵۶
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عنوان انگلیسی Hydrogeological Issues Concerning the Thar Lignite Prospect
چکیده انگلیسی مقاله The paper is concerned with the hydrogeological appraisal of the proposed mining operations in theThar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9000km2 andcontains three lignite seams lying at depth of 130m to 250 m. In the Thar lignite field, the presence ofthree main aquifers induces pore pressure in the rock mass surrounding the lignite seams and makes highwall slopes potentially unsafe. It is, therefore, necessary to dewater the rock mass before commencingmining excavations. The paper describes the proposed mine dewatering scheme to facilitatedepressurising of the rock mass surrounding the mining excavations. Inflow prediction of groundwater tothe surface mining excavation was carried out using a SEEP/W finite element software package. Thesimulation results show that the ground water inflow from the Top aquifer is 114m3/d, from theIntermediate confined aquifer is 141m3/d and from the Bottom confined aquifer is 1.28 x 105 m3 /d. Theseresults were compared with the analytical solutions which indicated that the relative error of estimation ofinflow quantities varies from 3.4 % to 6.4%.
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نویسندگان مقاله r n سینگ | r n
nottingham centre of geomechanics, department of civil engineering, faculty of engineering, university park, nottingham ng7 2rd, u.k.

علی اصغر atkins | a s
faculty of computing, engineering and technology, staffordshire university, beaconside, stafford, united kingdom st18 oad

f دولتی ardejani | doulati ardejani
school of mining, college of engineering, university of tehran, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

نشانی اینترنتی http://ijmge.ut.ac.ir/article_51324_2309ef7a693c54004f14a2a57a757c18.pdf
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