کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
275399 1429529 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Occurrence, predication, and control of coal burst events in the U.S.
ترجمه فارسی عنوان
ظهور، پیشگیری و کنترل رویدادهای زلزله زغال سنگ در ایالات متحده
کلمات کلیدی
زغال سنگ؛ گزاف گویی ذغال سنگ؛ لرزه خیزی؛ افت فشار زغال سنگ
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی

Coal burst represented a major hazard for some U.S. mining operations. This paper provides an historical review of the coal burst hazards, identifies the fundamental geological factors associated with these events, and discusses mechanisms that can be used to avoid their occurrences. Coal burst are not common in most underground mines. Their occurrence almost always has such dramatic consequences to a mining operation that changes in practice are required. Fundamental factors influencing coal burst events include strong strata, abnormal strata caving, elevated stresses, critical size pillars and the lack of sufficiently sized barrier pillars during extraction. These factors interact to produce excessive stress, seismic shock and loss of confinement mechanisms. Over the 90 years of dealing with these hazards, many novel prevention controls have been developed including novel mine designs and extraction sequences, most of which are site specific in their application. Without an accurate assessment of the fundamental factors that influence coal burst and knowledge of their mechanisms of occurrence, control techniques may be misapplied and risk inadequately mitigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mining Science and Technology - Volume 26, Issue 1, January 2016, Pages 39–46
نویسندگان
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