It is not a frequent experience for a write r to receive the opportunity to revise ami update a previous work. Such is the case, however, with this revised second bilition of Introductory Mining Engineering, originally authored by Howar d L. Hurt man. Further , the planned revision took an unexpected turn when Jan M . Millmansky joined the undertaking as coauthor of the second edition. I n fact, I )i Mutmansky contributed to the original work , serving as a reviewer of the  (tillino, as reader, and as critic. He was acknowledged in the preface of the first ilit ion and thus was the logical choice as coauthor of the second edition. <...>

Mining and metallurgical engineering encompasses two major disciplines: mining engineering and metallurgical engineering. Mining engineering separates useful minerals from worthless minerals (often called gangue) or harmful minerals through processes such as mining and mineral processing, or separates multiple useful minerals to obtain raw materials for metallurgy, energy, chemical industry, building materials, and other industries. Mining in a broad sense also includes the extraction of coal, oil, and gas, but this volume mainly focuses on the mining of metal ores. Metallurgical engineering applies the principle of metallurgy to smelt, process, and ultimately obtain metallic materials necessary for human society’s production and human life from the raw materials obtained in mineral engineering.

Coal is an important part of natural resources and the focus of social energy and economic development. With the increase in the energy demand, the amount of coal mining is also increasing, which leads to many safety problems. Improving the elevels of safety in the coal mining process while ensuring that coal production is carried out at an acceptable level is a problem that we must attach great importance to. In this book, we collect, revise and collate the latest work of the main researchers, covering the theory and technology of coal mine disaster prevention and control, safety management and control in the process of coal mining, mineral processing and intelligent/ green mining engineering, mining environmental protection and sustainable development, and other aspects of safety technology research, focusing on coal mine production safety <...>

В работе на основании обобщения опыта применения противофильтрационных завес в мировой практике в различных областях экономики и новых результатов исследований рассмотрены способы сооружения различных типов завес с целью создания благоприятных условий проведения горных и строительных работ, защиты застроенных территорий от подтопления и охраны водных ресурсов от истощения и загрязнения. Изложены технологии нарезки и заполнения траншей, инъектирования водоносных пород закрепляющими составами в различных геолого-гидрогеологических условиях.

The inception of every worthy project, i am told, can be traced to the influence of a person or an event or both. The beginnings of this book go back over 30 years to Lute Parkinson at the Colorado School of MiTs a£! his assignment of the greenest, brashest assistant professor on the faculty to team-leach with him the introductory mining engineering course It was quite an experience for both of us! He and my other mentors, Eugene pfleidcr at the University of Minnesota and Merritt Williamson at the Penn-sylvania State University, now deceased, together inspired this effort, because they encouraged me to address the perennial shortage of textbooks in our field. <...>

Внастоящее время на подземных рудниках, как правило, отрабатываются рудные месторождения малой мощности с разными углами падения с применением различных систем разработки. Кроме того, известно, что с углублением горных работ уменьшаются мощности рудных тел, вместе с этим снижается содержание металла в руде. В современных условиях в РК имеются рудники, например рудник «Стрежанский», который является жильным месторождением, но несмотря на это рудник полностью перешел на отработку жил подэтажной системой разработки с отбойкой руды веерными или параллельными скважинами. Это позволяет повысить производительность по добыче руды в несколько раз по сравнению с применением переносного оборудования.