کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4921812 | 1429525 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of dynamic pressure on deep underground soft rock roadway support and its application
ترجمه فارسی عنوان
تأثیر فشار دینامیکی بر حمایت عمودی زیرزمینی نرم سنگ و کاربرد آن
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کلمات کلیدی
جاده سنگ نرم عمیق، تاثیر فشار پویا، تست مدل مشابهی پشتیبانی ترکیبی، نظارت بر فشار زمین،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
چکیده انگلیسی
Due to high ground stress and mining disturbance, the deformation and failure of deep soft rock roadway is serious, and invalidation of the anchor net-anchor cable supporting structure occurs. The failure characteristics of roadways revealed with the help of the ground pressure monitoring. Theoretical analysis was adopted to analyze the influence of mining disturbance on stress distribution in surrounding rock, and the change of stress was also calculated. Considering the change of stress in surrounding rock of bottom extraction roadway, the displacement, plastic zone and distribution law of principal stress difference under different support schemes were studied by means of FLAC3D. The supporting scheme of U-shaped steel was proposed for bottom extraction roadway that underwent mining disturbance. We carried out a similarity model test to verify the effect of support in dynamic pressure. Monitoring results demonstrated the change rules of deformation and stress of surrounding rock in different supporting schemes. The supporting scheme of U-shaped steel had an effective control on deformation of surrounding rock. The scheme was successfully applied in underground engineering practice, and achieved good technical and economic benefits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mining Science and Technology - Volume 26, Issue 5, September 2016, Pages 903-912
Journal: International Journal of Mining Science and Technology - Volume 26, Issue 5, September 2016, Pages 903-912
نویسندگان
Meng Qingbin, Han Lijun, Chen Yanlong, Fan Jiadong, Wen Shengyong, Yu Liyuan, Li Hao,