外文翻译-工作面终采线附近冲击矿压综合防治技术.doc

1、翻译部分英文原文The rock-burst comprehensive prevention and control technology nearby Coal terminal lineMuZongLong DouLinming WangXuShengAbstract: terminal line is near rock-burst and the layout of the roadway prescroption predicted that influence of coal pillar form coal block, its impact during normal ris

2、k generally higher extraction, need to formulate special rock-burst comprehensive prevention and control plan. Star E3103 deep coal mining of full-mechanized caving mining face stopped during preventing experience: near the end line near the advance according to different positions, adopt coal blast

3、ing, large diameter roof-floor drill, flexible supporting and lower coal pillar advance recovery highly integrated measures to reduce the risk of rock burst, Using the electromagnetic radiation and drilling cuttings method of preventing test results and evaluation. Field application shows that, in t

4、erminal line near the comprehensive measures for preventing formulation can effectively reduce the impact of risk, to ensure the smooth recovery and relocation work for other similar conditions of mine in the park during working at design reference.Keywords: rock-burst, stopping line, Comprehensive

5、preventing measuresRock-burst is the strength of coal and rock pressure exceeds limit, accumulate in the coal and rock roadway surrounding the sudden release energy, in the shaft power will occur explosive accidents, coal roadway, at the same time, to a strong noise, vibration and coal, coal and roc

6、k mass destruction, support and equipment damage and casualties, part of the roadway destruction of collapse of a coal mine of natural disasters. Rock-burst may also cause other mine disasters, especially the gas coal-dust explosion, fire, flood, interference ventilation system, etc. Long-term since

7、, rock-burst as one of the major problems of rock mechanics and engineering is an important academic and research. The mechanism of rock-burst is very complex, a thorough research question, but also the focus of attention. Study of rock-burst purpose is to control or control rock-burst and eliminate

8、 rock-burst may harm of underground personnel and equipment. Rock-burst prevention and control measures including regional prevention measures and local relieving stress measures to eliminate, the condition of rock-burst in time and space, the long-term and regional, The latter has already formed in

9、 order to section of rock-burst relieving stress processing and safety protection, belongs to the temporary localised measures. At present, most large and medium-sized state-owned mine into deep mining, some of these mine by some factors, inevitably has formed a rock-burst dangerous mining layout (e

10、.g. not mining coal layer, forming island, mining depth or coal has impact on such tendentious etc), has been decorated mining system, must adopt rock-burst local relieving stress measures. Currently applied in coal mines of rock-burst relieving stress measures, such as coal seam affusion more, dril

11、l, discharging pressure blasting and roof directional hydraulic crack etc. Relieving stress rock-burst is the fundamental purpose of the measures of coal and rock high stress area to reduce stress, deep shift, reduce the higher peak stress in coal and rock stress orientation, reduce the impact of hi

12、gher energy accumulated degree of 7. These measures applied in a certain extent, to eliminate or reduce the risk rock-burst in coal mine safety in production, and played an important role. At present, to face the rock-burst during mining and has achieved remarkable results, and has accumulated rich

13、experience, but more about terminal line of rock-burst near the research literature has rarely. Statistics show that about 89% of rock-burst in mining of the left-over coal area, the terminal line, regional or local coal overdrawn, its reason is that these places are often stress increased working a

14、rea, near the terminal line layout is dense, general roadway tunnels in the existence of these stress concentration, plus the coal mining face further disturbances, easily become rock-burst of universal. Furthermore, the coal terminal line near stoping parameters are generally make appropriate adjus

15、tments, such as the lower coal mining height, fully-mechanized caving coal height or reduce caving mining, during normal measures for preventing may no longer adapt to stop during mining face, and preventing impending moved away, this makes stopped by preventing during the task of security departmen

16、t, more difficult，to further improve the number of requirements therefore, it is necessary to terminal line of rock-burst near and special design scheme.1 . Rock burst risk analysis of mineAnn shandong coal mining Co., LTD star around +40 m ground elevation buried coal seam deeply - 900 1200 m, for deep mining mine. In the process of roadway excavation, has broken anchor cable, and wait for an accident, coal, roof vibration and roof caving mining power. T