检索结果-南通市图书馆

An analytical solution for evaluating the safety of an exposed face in a paste backfill stope incorporating the arching phenomenon

在线全文

学校读者我要写书评

暂无评论

引用

International Journal of Minerals,Metallurgy and Materials 2019年第10期26卷 1206-1216页

In current underground mining, the stability of the exposed backfill face is a basic issue associated with mining design and has been the subject of considerable research in mining safety and efficiency. In this study, an improved analytical solution for evaluating the safety of vertically exposed faces in backfilling was proposed. Based on a differential slice method, the proposed solution emphasizes the arching effect as having the advantages of more rigor and wider scalability. Feasibility of the proposed solution was validated with classic centrifuge results. Good agreement between compared results indicated that the proposed solution skillfully predicts the behavior of the paste centrifuge model. Additionally, calculation of exposed face safety in sequential filling was presented. The proposed solution has practical significance in mine backfill design.

关键词： mine safety cemented paste backfill exposed face arching sequential filling

Safety of barricades in cemented paste-backfilled stopes

在线全文

学校读者我要写书评

暂无评论

引用

International Journal of Minerals,Metallurgy and Materials 2020年第8期27卷 1054-1064页

作者： Xu Zhao andy fourie Ryan Veenstra Chong-chong Qi School of Civil Environmental and Mining EngineeringUniversity of Western AustraliaCrawley WA 6009Australia Newmont Corporation Subiaco WA 6008Australia School of Resources and Safety Engineering Central South UniversityChangsha 410083China

In underground mining,there has been an increasing use of"cemented paste"for the backfilling of *** this cemented paste backfill(CPB)enters the stope as a fluid,shotcrete barricades are often used to retain the fill material during and after the filling ***,failures of barricades have been reported around the world in recent *** paper presents an analytical solution based on the elastic thin plate theory for calibrating the design of shotcrete barricades in underground mines using *** solution was used to determine the quantitative relationships between the lateral loading from the paste and the barricade response during the backfilling *** results show that the proposed solution agrees well with in situ *** to the actual barricade responses,the acceptable tensile stress and an analysis method of cracks development are *** proposed solution has practical significance for underground mines.

关键词： cemented paste backfill barricade elastic thin plate theory mine safety in situ measurement

Editorial for special issue on mitigating the impacts of mining

在线全文

学校读者我要写书评

暂无评论

引用

International Journal of Minerals,Metallurgy and Materials 2020年第8期27卷 1007-1008页

作者： Chong-chong Qi andy fourie Qiu-song Chen Ryan Veenstra School of Civil Environmental and Mining EngineeringUniversity of Western AustraliaCrawley WA 6009Australia School of Resources and Safety Engineering Central South UniversityChangsha 410083China Newmont Corporation Subiaco WA 6008Australia

Dear readers,A special issue(SI)entitled"Mitigating the Impacts of Mining"has been successfully organized at International Journal of Minerals,Metallurgy and Materials(IJMMM).The primary reason for this SI lies in that this topic is gaining increasing attentions worldwide.A collection of high-quality papers will contribute to the sustainable development of the mining industry.

关键词： mining entitled collection