开滦集团吕家坨西矿240万吨新井设计.doc
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1、摘要本设计包括两个部分:一般部分和专题部分。一般部分为开滦矿务局吕家坨矿新井设计,全篇共分为十个部分:矿井概括及井田地质特征、井田境界及储量、矿井工作制度和设计生产能力、井田开拓、采区巷道布置、采煤方法、井下运输、矿井提升、矿井通风与安全和矿井主要经济技术指标。吕家坨井田,位于河北省唐山市古冶区内,矿井东西长约为6000m,南北宽约为3800m,面积为22km2。井田内的可采煤层为7煤、8煤,其中主采为7煤,该煤层赋存稳定,平均厚度4.8米。倾角平均为11,为缓斜厚煤层。井田内工业储量2.9976108吨,可采储量2.095108吨。矿井最大涌水量为300m3/h,相对瓦斯涌出量1.79m3/
2、t,属于低瓦斯矿井,煤层有煤尘爆炸危险性和自然发火现象。吕家坨矿年设计生产能力240万t/a,服务年限67年。采用立井两水平开拓,第一水平标高-760m,第二水平标高-1100m。矿井采用单一走向长壁综合机械化采煤法。矿井布置一个综采工作面保证全矿井的产量,长度210m,煤的运输采用胶带输送机运输。矿井的通风方式采用中央边界式通风。专题部分为冲击矿压发生机理和防治技术浅析。该文综述了近几十年来矿井冲击地压发生机理理论的研究进展,对矿井冲击地压预测预报与防治方法现状做了简要说明,提出了煤体冲击地压的预测技术,介绍了国内外学者在预测预报方面的先进经验 ,并针对冲击地压提出了具体的防治措施 ,最后指
3、出了矿井冲击地压今后的研究重点。关键词:井田储量;开拓方式;采煤方法;矿井通风;井下运输 AbstractThis design including two parts: general part and special part.The general part is a new design of Lu Jia Tuo Mine in Kailuan Group. It has ten chapters: the outline of the mine and coalfield geology, boundary and reserves, the designed annual pro
4、duction capacity, service life and working area, underground transportation, lifting, ventilation and safety, the economy and technology index of the mine.The Lu Jia Tuo coal field lies in the TangShan city of Hebei province. The boundary of the mine runs 6.0 km from west to east and 3.8km from nort
5、h to south on average. The total area of the mine is about 22 km2. there are two available seams:7#,8#. They buryed stably and belonging to lesser pitching coal seam, with the average angle 11 degree. The industry reserves of the mine are 299.76 million tons and the useable 209.5 million tons. The a
6、verage flow of the mine water is 300 m3/h. It is a lower gas mine. The coal dust have explosion hazard, and the seam has self-combustion tendency.The production annual capacity of Lu Jia Tuo mine is 2.4 million tons, and its service life is 67 years. There are 2 levels in the mine. The first develop
7、ment level located at the -760m, the second is 1100m. The minning method is fully mechanized along the coal bed strike.There is only one working face in the mine. The length of the face is 210m. Coal is transported by adhesive tape. The form of ventilation is the limitrophe to the coalfields center.
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