کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7206227 1468663 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanism and risk assessment of overall-instability-induced rockbursts in deep island longwall panels
ترجمه فارسی عنوان
مکانیزم و ارزیابی ریسک رکاب برشی ناشی از کلیه در پانل های بلند فایقی جزیره
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
An increasing number of mines in China are being subjected to overall-instability-induced (OII) rockbursts in extracting deep remnant island longwall panels, causing severe damage at far larger scale and intensity compared with common local rockbursts. Using the island longwall panel LW1305 at Zhaolou Coal Mine as a case example, this paper investigates the mechanism of the newly defined OII rockburst by means of stress and microseismic monitoring, and then proposes a straightforward risk assessment method for OII rockbursts based on the actual bearing index in an attempt to provide guidelines for making engineering judgement. The proposed risk assessment method was successfully applied to LW1305, and the assessment result is supported by the occurrence of an OII rockburst in LW1305, and further verified by numerical modeling and microseismic monitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 106, June 2018, Pages 342-349
نویسندگان
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