为研究浅埋煤层大采高工作面矿压显现规律及支架适应性情况,采用KBJ-60Ш-1型综采支架工作阻力连续记录仪对酸刺沟煤矿首采工作面进行实测分析。结果表明:工作面初次来压步距52 m,与理论计算结果54.1 m基本吻合;周期来压步距随工作面推进速度的增大而增大,工作面推进速度为4 m/d、13 m/d时,周期来压步距分别为12.8 m、21.8 m;来压期间;工作面中部支架工作阻力大,达到额定工作阻力支架的比例达96%;工作面两端支架工作阻力小,不超过额定工作阻力的支架比例达91%。最后根据支架运行特性分析,论证了所选用的2400/5000-2×4412-1750型液压支架可以满足来压期间的顶板岩层控制要求。

In order to study on the mine pressure behavior law and the powered support suitability situation of the high cutting coal mining face in the shallow depth seam, the KBJ-6011I-1 type working resistance continued recorder of the powered support was applied to the site measurement and analysis on the first coal mining fac e in Suancigou Mine. The results showed that the mine initial pressurized distance of 52 m occurred in the coal mining face was basically fit with the theoretical calculati on results of 54.1 m;the periodical pressurized distance would be increased with the mining face advancing speed increased and when the coal mining face advancing s peed reached at 4 m/d and 13 m/d, the periodical pressurized distance would be 12.8 m and 21.8 m individually;during the pressurized period, the working resistance di stribution features of the powered supports would have high resistances at the middle part of the coal mining face and the rated work resistance ratio would be 96%, th e work resistances of the powered supports at the two ends would be low and would not be over 91% of the rated work resistance ratio.Finally, based on the analysis 0 n the operation features of the powered support, the paper confirmed that the 2400/5000-2x4412-1750 type hydraulic powered support could meet the requirements of t he roof strata control during the pressurized period.

中国矿业大学煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM08X02)；中国矿业大学青年科研基金资助项目(2008A003、2009A001)；国家自然科学基金青年基金资助项目(50904063)；