CAJ | 학술논문

采用理论分析、实测分析、数值模拟、类比分析研究方法综合确定了两种型号液压支架混合配套所能实现的工作面合理斜长,并从支架布置方式、设备尺寸配套、围岩控制、通风风量、技术经济效益等方面对加长工作面进行了综合分析.研究结果表明,加长工作面合理斜长为250 m；支架布置方式为支护强度大的支架位于工作面中部,而支护强度小的支架位于工作面两端；在保持煤壁平直、刮板输送机平直的条件下,应允许两种支架前立柱柱窝有前后150 mm 的错距.若采用加长工作面后,应注重围岩控制,且通风量保持为4056.9 m3/min,可节约成本3.97元/t,年增加效益1191万元.
채용이론분석、실측분석、수치모의、류비분석연구방법종합학정료량충형호액압지가혼합배투소능실현적공작면합리사장,병종지가포치방식、설비척촌배투、위암공제、통풍풍량、기술경제효익등방면대가장공작면진행료종합분석.연구결과표명,가장공작면합리사장위250 m；지가포치방식위지호강도대적지가위우공작면중부,이지호강도소적지가위우공작면량단；재보지매벽평직、괄판수송궤평직적조건하,응윤허량충지가전립주주와유전후150 mm 적착거.약채용가장공작면후,응주중위암공제,차통풍량보지위4056.9 m3/min,가절약성본3.97원/t,년증가효익1191만원.
Theory analysis,actual measurement analysis,numerical simulation and analogy analysis were adopted to determine the reasonable face length decided by the mixed matching of two different types of hydraulic supports. Then the lengthened face were comprehensively ana-lyzed from several aspects such as supports arrangement form,equipment size matching,sur-rounding rock control,ventilation volume and technical and economic benefits. The research re-sults showed,the reasonable face length was 250 m;the supports arrangement form was that higher supporting intensity supports were set in the middle of the face,and the lower were set in the both ends;in the condition of straight coal wall and scraper conveyor,the distance between the front pillar sockets of two types of supports should be allowed to be 150 mm. Much more at-tentions should be paid on the surrounding rock control when the lengthened face was carried out,and the ventilation volume of lengthened face should be 4056.9 m3/min.The cost would be reduced 3.97 yuan per ton,and the annual income would increase 1 1.91 million yuan.