涡北煤矿1.50 Mta的新井设计.docx

1、摘 要本设计包括三个部分：一般设计部分、专题设计部分和翻译部分。一般部分为涡北煤矿1.50 Mt/a的新井设计。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。井田走向长约6 km，倾向长约3.2 km，面积约19.2 km2。主采煤层为8号煤层，平均倾角16，平均厚度8.2 m。井田工业储量为172.09 Mt，可采储量109.73 Mt，矿井服务年限为56.3 a。矿井正常涌水量为260 m3/h，最大涌水量为280 m3/h；矿井绝对瓦斯涌出量为2.5 m3/min，属低瓦斯矿井。根据井田地质条件，提出四个技术上可行开拓方案。方案一：立井两水平开采，暗斜井延深；方案二：

2、立井两水平开采，立井直接延深；方案三：立井三水平开采，暗斜井延伸；方案四：立井三水平水平开采，暗立井延伸。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200 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“四六制”。大巷采用带式输送机运煤，辅助运输采用矿车运输。矿井通风方式前期为中央边界式，后期为中央并列式。专题部分题目是沿空留巷围岩控制技术研究，沿空留巷能解决工作面瓦斯超限、实现无煤柱连续开采、提高资源回收率。基于围岩破碎机理采用锚杆注浆加固和巷旁充填技术对围岩进行控制。翻译部分题目是长臂

3、开采工作面回采巷道顶板支护设计方法。关键词：涡北煤矿；立井；暗斜井；采区布置；放顶煤采煤法；中央边界式；沿空留巷ABSTRACTThis 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 Guobei coal mine. Guobei coal mine lies in Boz

4、hou, Anhui province. As Jingjiu railway run across the west part of the mining field and Suifu railway run across the east part of the mining field, the traffic is convenient. Its about 6 km on the strike and 3.2 km on the dip,with the 19.2 km2 total horizontal area. The minable coal seam is 8 with

5、an average thickness of 8.2 m and an average dip of 16. The proved reserves of this coal mine are 172.09 Mt and the minable reserves are 109.73 Mt, with a mine life of 56.3 a. The normal mine inflow is 260 m3/h and the maximum mine inflow is 280 m3/h. The mine gas emission rate is 2.5 m3/min which b

6、elongs to low gas mine. Based on the geological condition of the mine, I bring forward four available project in technology. The first is vertical shaft development with two mining levels and the extension of blind inclined shaft; the second is vertical shaft development with two mining levels and t

7、he extension of vertical shaft; the third is vertical shaft development with three mining levels and the extension of blind inclined shaft; the last is vertical shaft development with three mining levels and the extension of blind vertical shaft. The first project is the best comparing with other th

8、ree project in technology and economy. The first level is at -700 m, The second level is at -1000 m.Designed first mining district makes use of the method of the mining district preparation, the length of working face is 200 m, which uses fully-mechanized coal caving mining methods. The working syst

9、em is “four-esix”which produces 330 d/a.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. The type of mine ventilation system is central boundary in the earlier period, and central abreast in the later period.The monographic study is surround

10、ing rock controling with gob side entry retaining technology research. The gob-side entry retaining can solve the problem of gas overrun on the mining face, also it can realize continuous mining without pillars and improve the recovery ratio. Mechanism based on the use of broken rock bolt grouting r

11、einforcement and filling lane next to the technical control of the surrounding rock.The translated academic paper is about A method for the design of longwall gateroad roof support.Keywords: Guobei coal; vertical shaft; blind inclined shaft; mining district preparation; coal caving mining ; centrali

12、zed boundary ventilation; gob-side entry retain目 录一般部分1 矿区概述及井田地质特征11.1 矿区概述11.2 井田地质特征31.3 煤层特征82 井田境界及储量132.1 井田境界132.2 储量153 矿井工作制度、设计生产能力及服务年限213.1 矿井工作制度213.2 矿井设计生产能力及服务年限214 井 田 开 拓234.1 矿井开拓的基本问题234.2 矿井基本巷道355 准备方式采区巷道布置465.1 煤层地质特征465.2 采区巷道布置及生产系统475.3 采区车场选型设计506 采煤方法546.1 采煤工艺方式546.2 回采

13、巷道布置677 井下运输717.1 概述717.2 采区运输设备选择747.3 大巷运输设备选择758 矿井提升788.1 概述788.2 主副井提升789 矿井通风及安全技术839.1 矿井通风系统选择839.2 矿井风量计算879.3 全矿通风阻力计算929.4 矿井通风设备选型989.5 防止特殊灾害的安全措施10210 设计矿井基本技术经济指标104专题部分沿空留巷围岩控制技术研究1051 绪论1052 巷道围岩的变形机理及控制研究1103 沿空留巷理论基础1124 沿空留巷巷旁充填技术1205 工程实践1256 结论130翻译部分英文原文132A method for the des

14、ign of longwall gateroad roof support132中文译文147长臂开采工作面回采巷道顶板支护的设计方法147致谢158一般部分1 矿区概述及井田地质特征1.1 矿区概述1.1.1 井田位置及交通涡北煤矿位于淮北平原西部，井田中心南距涡阳县城4 km，行政划分属安徽省涡阳县管辖。井田范围：矿井范围南起F9断层，北至刘楼断层；东起太原组第一层灰岩顶面的隐伏露头线，西止于32煤层-1000 m水平等高线的地面投影线。平面上近似为一矩形，南北长约6 km，东西宽约3.2 km，勘查面积约19 km2。地理坐标为东经1160958 1161245，北纬333053 333

15、448。濉阜铁路从矿井东南约3 km处通过，涡阳车站距矿井中心约5 km左右，在矿井的西部约40 km处有京九铁路；涡阳河南省永城公路纵贯全区，涡阳至阜阳、蚌埠、亳州、淮北及邻县有四通八达的公路网。涡河可长年通航小型机动船，上游可达亳州，下游直通淮河。因此本区交通运输条件十分便利,井田交通位置图如图1-1-1。1.1.2 地形地貌与水文情况本区地势平坦，自然地面标高+30.49 +32.80 m，地势西北高东南低，地面村庄较多。涡河及其支流武家河为长年性河流，由西北向东南从其井田西南部流过。涡阳县城关涡河节制闸上游最高洪水位标高为+30.45 m。区内沟渠纵横，均为人工开挖的灌溉沟渠，较大的涡新河常年有水。1.1.3 气候条件本区气候温和，属季风暖温带，半湿润气候，春秋温和少雨，夏季炎热多雨，冬季寒冷多风。1956 1990年年平均气温14.6 ，最高气温41.2 ，最低气温-24 。春秋季多东北风，夏季多东东南风，冬季多北西北风，平均风速为3.2 m/s。年平均降水量为811.8 mm，雨量多集中在七、八两个月。全年蒸发量1890.6 mm，全年无霜期215天，冻结期最早为11月10日，最晚