涡北煤矿1.5Mta新井设计【专题深部巷道锚杆支护技术】.docx

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。一般部分为涡北煤矿1.50 Mt/a新井设计。涡北煤矿位于安徽省亳州市境内，东有京九铁路，西有濉阜铁路，交通便利。井田走向长度约6.30 km，倾向长度约2.46 km，面积约14.49 km2。主采煤层为8号煤层，平均倾角为18，平均厚度为10.0 m。井田工业储量为190.806 Mt，可采储量为104.255Mt，矿井服务年限为53.46a。矿井正常涌水量为250 m3/h，最大涌水量为280 m3/h。矿井绝对瓦斯涌出量为21.3 m3/min，属于低瓦斯矿井。根据井田地质条件，提出四个技术上可行的开拓方案。方案一：立井两水平开

2、拓上山开采，暗斜井延深；方案二：立井两水平开拓上山开采，立井直接延深；方案三：立井两水平开拓上下山开采，暗斜井延深；方案四：立井两水平开拓上下山开采，立井直接延深。通过技术经济比较，最终确定方案一为最优方案。一水平标高-700 m，二水平标高-1000 m。设计首采区采用采区准备方式，工作面长度160 m，采用综采放顶煤采煤法，矿井年工作日为330 d，工作制度为“三八制”。大巷采用胶带输送机运煤，辅助运输采用矿车运输。矿井通风方式为中央并列式。专题部分题目：深部巷道锚杆支护技术。我国国有大中型煤矿开采深度每年约以812 m的速度向深部增加，一些老矿区和缺煤矿区相继进入深部开采阶段。由于开采深

3、度的加大，岩体应力急剧增加，地温升高，巷道围岩破碎严重，塑性区、破碎区范围很大，蠕变严重。采用工字钢、架棚等被动支护技术已不能有效的控制巷道的变形，采用高强度全长树脂锚固锚杆锚固力大、锚固及时，能主动地将支撑载荷作用到巷道周边，对围岩施加径向力，加强巷道或硐室周边围岩稳定性，充分发挥围岩的自身承载能力，取得了良好的支护效果。翻译部分题目：The performance of pressure cells for sprayed concrete tunnel linings。喷射混凝土巷道应力测量仪的性能。关键词： 立井； 暗斜井； 采区布置； 放顶煤采煤法； 中央并列式； 锚杆支护ABSTR

4、ACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 1.50 Mt/a new underground mine design of Wobei coal mine. Wobei coal mine lies in Hozhou City, Anhui province. As Jingjiu railway runs in the west o

5、f the mine field and Suifu railway runs in the east of the mine field, the traffic is convenient. Its about 6.30 km on the strike and 2.46 km on the dip, with the 14.49 km2 total horizontal area. The minable coal seam is 8 with an average thickness of 10.0 m and an average dip of 18.The proved reser

6、ves of this coal mine are 190.806 Mt and the minable reserves are 104.255 Mt, with a mine life of 53.46 a. The normal mine inflow is 250 m3/h and the maximum mine inflow is 280 m3/h. The mine gas emission rate is 21.3 m3/min, the mine belongs to low gas mine. Based on the geological conditions of th

7、e mine, I bring forward four available projects in technology. The first is vertical shaft development with two mining levels and the first level at -700m and the second level at -1000m and extension of blind inclined shaft; the second is vertical shaft development with two mining levels and the fir

8、st level at -700m and the second level at -1000m and extension of vertical shaft; the third is vertical shaft development with two mining levels and the first level at -700m and the second level at -850m and extension of blind inclined shaft; the last is vertical shaft development with two mining le

9、vels and the first level at -700m and the second level at -850m and extension of vertical shaft. The first project is the best comparing with other three projects in technology and economy. The first level is at -700 m and the second level is at -1000 m.Designed first mining district makes use of th

10、e method of the mining district preparation. The length of working face is 160 m, which uses fully-mechanized coal caving mining method. The working system is “three-eight” which produces 330 d/a.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transpo

11、rt. The type of mine ventilation system is center ventilation.The title of monographic study is technology of deep roadway bolt supporting. Chinas State-owned large and medium-sized coal mine mining depth of about 812 m a year increase in speed to the deep, deficiency in some old mining area and ent

12、ered the stage of deep mining in coal mining area. With the mining depth increasing, the stress in rock mass increases quickly, temperature rises, the rock surrounding roadway breaks seriously and the broken plastic area has a large range and creep seriously. Using passive support nurse technology,

13、for example jacked, frame shed and so on, has cannot control the deformation of roadway effectively. Using high strength and full length resin bolt which has large anchorage and anchorage timely can active to make supporting load to roadway around, impose radial force to surrounding rock and strengt

14、hen the stability of roadway or surrounding rock around chamber room, which can give full play to the hosted ability of surrounding rock and has made a good support nurse effect.The translated academic paper is The performance of pressure cells for sprayed concrete tunnel linings.Keywords: Vertical

15、shaft; Blind inclined shaft; Mining district preparation; Coal caving mining ; Center ventilation; Bolt supporting目 录一般部分1 矿区概述及井田地质特征11.1 矿区概述11.1.1交通位置11.1.2地貌水系11.1.3气象11.1.4地震21.1.5矿区内工农业生产、建筑材料等概况21.1.6区域电源21.1.7水源21.2井田地质特征21.2.1井田地质构造21.2.2水文地质41.2.3地质勘探程度81.3煤层特征81.3.1煤层81.3.2煤层顶、底板91.3.3煤质9

16、1.3.4瓦斯101.3.5煤尘及煤的自燃102 井田境界和储量112.1井田境界112.1.1井田境界及确定依据112.1.2井田尺寸112.2矿井工业储量112.2.1井田地质勘探112.2.2储量计算基础122.2.3矿井地质储量计算122.2.4矿井工业储量计算132.3 矿井可采储量142.3.1工业广场保护煤柱142.3.2矿井设计储量142.3.3矿井设计可采储量153 井田境界和储量163.1矿井工作制度163.2矿井设计生产能力及服务年限163.2.1确定依据163.2.2矿井设计生产能力163.2.3矿井服务年限163.2.4井型校核174 井田开拓184.1井田开拓的基本问题184.1.1确定井筒形式、数