中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2015年
1期
104-107
,共4页
急倾斜工作面%综采工作面%支架稳定
急傾斜工作麵%綜採工作麵%支架穩定
급경사공작면%종채공작면%지가은정
steeply inclined working face%fully mechanized working face%support stabilit
急倾斜条件下确保综采支架稳定一直是急倾斜综采工作面安全生产难题之一。现以李嘴孜矿3232(3)急倾斜工作面具体条件为研究基础,结合倾斜砌体结构理论与理论力学相关知识,对顶板倾斜砌体结构反倾向顺压作用下支架稳定(下滑与倾倒)进行力学分析。结果表明,3232(3)工作面支架最小工作阻力不小于4023kN能够保持稳定,支护阻力为4600kN工作面支架的选择使用比较合理。最后,通过对支架受力模型分析,提出在工作面推进过程中,支架底座安装底座双千斤顶、顶梁双千斤顶以及改变工作面移架方式等技术措施,能够有效调整和防止支架倾倒与下滑现象发生,很大程度提高支架稳定性,保证综采工作面生产安全高效。
急傾斜條件下確保綜採支架穩定一直是急傾斜綜採工作麵安全生產難題之一。現以李嘴孜礦3232(3)急傾斜工作麵具體條件為研究基礎,結閤傾斜砌體結構理論與理論力學相關知識,對頂闆傾斜砌體結構反傾嚮順壓作用下支架穩定(下滑與傾倒)進行力學分析。結果錶明,3232(3)工作麵支架最小工作阻力不小于4023kN能夠保持穩定,支護阻力為4600kN工作麵支架的選擇使用比較閤理。最後,通過對支架受力模型分析,提齣在工作麵推進過程中,支架底座安裝底座雙韆斤頂、頂樑雙韆斤頂以及改變工作麵移架方式等技術措施,能夠有效調整和防止支架傾倒與下滑現象髮生,很大程度提高支架穩定性,保證綜採工作麵生產安全高效。
급경사조건하학보종채지가은정일직시급경사종채공작면안전생산난제지일。현이리취자광3232(3)급경사공작면구체조건위연구기출,결합경사체체결구이론여이론역학상관지식,대정판경사체체결구반경향순압작용하지가은정(하활여경도)진행역학분석。결과표명,3232(3)공작면지가최소공작조력불소우4023kN능구보지은정,지호조력위4600kN공작면지가적선택사용비교합리。최후,통과대지가수력모형분석,제출재공작면추진과정중,지가저좌안장저좌쌍천근정、정량쌍천근정이급개변공작면이가방식등기술조시,능구유효조정화방지지가경도여하활현상발생,흔대정도제고지가은정성,보증종채공작면생산안전고효。
Steep stable conditions to ensure the fully mechanized support has been one of production safety problems of steeply inclined working face .Now ,according to Lizuizhi coal mine 3232 (3) steeply inclined working face a specific conditions as the research basis ,in combination with the related knowledge of theory of inclined masonry structure and theoretical mechanics ,to the roof of tilt masonry structure in the tendency of support stability under the action of (decline and dumping) is analyzed with mechanics .The results showed that 3232 (3) working face support working resistance minimum not less than 4023 kN can remain stable ,the choice of the 4600 kN support resistance of working face support is quite reasonable . Finally ,by analyzing the support mechanical model ,raised that in the process of working face advancing , support base mounting base double jack ,top beam double jack and technical measures such as changing the moving frame method can effectively adjust and prevent support dumping and decline phenomenon ,greatly improve the support stability ,guarantee the safe and efficient production of fully mechanized working face .