顾桥矿井1.5Mta新井设计.doc

1、第7页摘 要一般部分针对淮南顾桥矿井进行了井型为1.5 Mt/a的新井设计。顾桥矿井位于安徽省淮南市境内，井田走向长约7.5 km，倾向长约3.5km，面积约27.1km2。主采煤层为13-1和11-2煤层，平均厚度分别为4.8 m和3.2 m，平均倾角都为6。井田工业储量为318.01 Mt，可采储量188.72 Mt，矿井服务年限为96.8a。矿井正常涌水量为194 m3/h，最大涌水量为230 m3/h；矿井相对瓦斯涌出量为13.215 m3/t，属高瓦斯矿井。根据井田地质条件，设计采用立井单水平开拓方式，采区带区式布置方式，共划分为6个带区，3个采区，水平标高-780 m。轨道大巷、胶

2、带机大巷和回风大巷皆为岩石大巷，布置在11-2煤层底板岩层中。考虑到本矿井为高瓦斯矿井，故前期采用中央边界式通风方式，后期采用混合式通风方式，并在开采前预掘底板瓦斯抽排巷进行瓦斯提前卸压抽放。针对一带区进行了准备方式设计。共划分7个分带工作面，并进行了运煤、通风、运料、排矸、供电系统设计。带区服务年限7.9年。对110101工作面进行了采煤工艺设计。该工作面煤层平均厚度为3.2m，平均倾角6，直接顶为粘土砂岩，老顶为细砂岩。工作面采用长壁综采一次采全高的采煤方法。采用双滚筒采煤机割煤，往返一次割两刀。采用“三八制”工作制度，截深0.8 m，每天六个循环，循环进尺4.8 m，月推进度144 m。

3、大巷采用胶带输送机运煤，辅助运输采用蓄电池式电机车牵引固定箱式矿车。主井采用两套带平衡锤的16 t箕斗提煤，副井采用一对1.5 t矿车双层四车宽罐笼运料和升降人员。专题部分题目是岩巷快速施工技术现状与支护趋势，经过查阅大量资料和结合国内外现场应用分析，认为发展快速掘进技术对煤矿经济持续增长有着非常大的意义。翻译部分题目为Effects of frequency and grouted length on the behavior of guided ultrasonic waves in rock bolts，实验结果显示其超声导波在锚杆中的衰减和群速度随着频率和锚固长度的变化而变化。关键词：

4、顾桥矿；立井单水平；带区布置；综采大采高；中央边界式；快速施工；支护； ABSTRACTThe general design is about a 1.5Mt/a new underground mine design of Guqiao coal mine. Guqiao coal mine is located in Huainan, Anhui province. Its about 7.5 km on the strike and 3.5 km on the dip, with the 22.1 km2 total horizontal area. The minable coal s

5、eam are 13-1 and 11-2 with an average thickness of 4.8 m and 3.2m ，the average dip is 6. The proved reserves of this coal mine are 318.01 Mt and the minable reserves are 188.72 Mt, with a mine life of96.8 a. The normal mine inflow is 194 m3/h and the maximum mine inflow is 230 m3/h. The mine gas emi

6、ssion rate is 13.215 m3/t which can be recognized as high gas mine. Based on the geological condition of the mine, this design uses vertical shaft single-level development method, both district and strip preparation ,which divided into 6 strips and 3 distrits totally, The level is at -780 m .track r

7、oadway, belt conveyor roadway and return airway are all rock roadways, arranged in the floor rock of 11-2 coal seam. Taking into account of the high gas emission, mine ventilation method use central boundary ventilation in earlier stage and combined ventilation, excaves bottom gas drainage roadway b

8、efore mining to relief gas pressure in advance.The design apply strip preparation against the first band of One which divided into 7 stirps totally, and conducted coal conveyance, ventilation, gangue conveyance and electricity designing. Its life is 7.9 a.The design conducted coal mining technology

9、design against the 110101 working face. The coal seam average thickness of this working face is 3.2 m and the average dip is 6, the immediate roof is day sandstone and the main roof is sand stone. The working face apply fully-mechanized long-wall full-height coal caving method, and using double drum

10、 shearer cutting coal which cutting twice each working cycle. “Three-Eight” working system has been used in this design and the depth-web is 0.8 m with six working cycles per day, and the advance of working cycles is 4.8 m per day and 144 m per month.Main roadway makes use of belt conveyor to transp

11、ort coal resource, and battery locomotive to be assistant transport. The main shaft uses double 16 t skips to lift coal with a balance hammer and the auxiliary shaft uses a twins wide 1.5t four-car double-deck cage to lift material and personnel transportation.Special section entitled Rapid Construc

12、tion of Rock situation and support trends;, after the access to large amounts of data and analysis of field application at home and abroad, the development of rapid excavation techniques that sustained economic growth in coal mines has a very large significance. Translation of part of the topic Effe

13、cts of frequency and grouted length on the behavior of guided ultrasonic waves in rock bolts, Experimental results show that the guided wave attenuation in the Anchorage and the group velocity with frequency, and the anchorage length changes.Keywords:guqiao coal mine; vertical shaft single-level; ba

14、nd mode; large mining height; central boundary ventilation; Rapid Construction; Support;目 录1 井田概述及地质特征11.1井田概述11.1.1井田地理位置及范围11.1.2矿区气候与气象11.1.3地形与河流21.1.4地震21.1.5外部建设条件21.2井田地质特征31.2.1地层31.2.2构造31.2.3煤系及煤层41.2.4水文地质41.2.5其它开采技术条件51.3 煤层特征51.3.1煤层埋藏条件51.3.2可采煤层及其围岩特征61.3.3煤的特征72 井田境界与储量102.1井田境界102.

15、1.1井田范围102.1.2 开采界限102.1.3井田尺寸102.2井田地质勘探102.3矿井地质储量102.3.1地质资源储量102.3.2工业资源/储量132. 4矿井可采储量132. 4.1安全煤柱留设原则132. 4.2矿井永久保护煤柱损失量143 矿井工作制度、设计生产能力及服务年限173.1矿井工作制度173.2矿井设计生产能力及服务年限173.2.1矿井设计生产能力确定依据173.2.2矿井设计生产能力的确定173.2.3矿井服务年限183.2.4 井型校核184 井田开拓194.1矿井开拓的基本问题194.1.1井筒形式，数目，位置及坐标确定194.1.2阶段划分和开采水平设置214.1.3阶段和开采水平参数214.1.4工业广场位置、形状及面积确定224.1.5主要开拓巷道234.1.6开拓延伸方案234.1.7确定开拓方案234.2矿井基本巷道334.2.1井筒334.2.2井底车场及硐室374.2.3主要开拓巷道395 准备方式带区巷道布置445.1煤层地质特征445.1.1带区位置445.1.2带区煤层特征445.1.3主要可采煤层顶底板岩石力学特征445.1.4水文地质445.1.5地质构造445.1.6瓦斯455.1.7地温455.1.8地表情况455.2 带区巷道布置及生产系统