沁新煤矿2.4Mta新井设计.docx
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1、 摘 要本设计包括三个部分:一般部分、专题部分和翻译部分。一般部分为沁新矿2.4Mt/a新井设计。沁新煤矿位于山西省沁源县西部西部李元乡境内。井田总面积为17.8km2。主采煤层为2号煤层,平均倾角为6,煤层平均总厚为3.5m。井田地质条件较为简单。井田地质储量为300.4 Mt,矿井可采储量219.26 Mt。矿井服务年限为65.3a,涌水量不大,矿井正常涌水量为480 m3/d,最大涌水量为120 m3/d。矿井瓦斯涌出量较高,瓦斯相对涌出量为24.39 m3/min,绝对涌出量为17.09 m3/t,为高瓦斯矿井。井田为双斜井单水平开拓。大巷采用胶带运输机运煤,辅助运输采用无极绳牵引矿车
2、运输。矿井通风方式为初期为中央并列式,后期为两翼对角式通风。矿井年工作日为330d,日提升时间16小时,工作制度为“四六”制。一般部分共包括10章:1.矿区概述及井田地质特征;2.井田境界和储量;3.矿井工作制度及设计生产能力、服务年限;4.井田开拓;5.准备方式-采区巷道布置;6.采煤方法;7.井下运输;8.矿井提升;9.矿井通风与安全技术;10.矿井基本技术经济指标。专题部分题目为:深部巷道卸压支护技术。翻译部分题目为:The influence of roadway backfill on the coal pillar strength by numerical investigati
3、on关键词:井田;采区;采空区;矿井通风;支护;卸压ABSTRACTThe design includes three parts: general part, special part and the translation part. Qinna mines for the general part of 2.4Mt / a new well design. Qin新 Coal Mine is located in qinyuan city, shanxi Province. The farmland total area of 17.82. Layer 2, the main coal
4、mining, the average inclination of 10,the average total thickness coal of 3.5m. The farmland geological condition is simple. The farmland Geological reserves 300.4 Mt, mine recoverable reserves of 219.26Mt. The service life of mine as 65.3a, discharge is not, mine is the normal discharge 480 m3 / d,
5、 the maximum discharge is 120 m3 / d. Relative gas emission rate is 24.39 m3/min, The absolute emission is 17.09 m3/t Mine gas emission is high, for high gas mine. The farmland is Double inclined shaft with single level development. Roadway use belt conveyor to transport coal, Auxiliary transportati
6、on with endless rope haulage car transport. Mine ventilation air is: Early for the central parallel, late for the two wings of diagonal ventilation Mine in working for the 330d, improve time to 16 hours a day, work systems for the 46 system. General part of the total, including 10 chapters: 1. Minin
7、g Overview and Mine geological characteristics; 2. Ida realm and reserves; 3. Mine work system and design capacity, service life; 4. Ida develop; 5. Preparation methods - mining roadway layout; 6. mining method; 7. underground transport; 8. Mine; 9. mine ventilation and safety technology; 10. Mine t
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