朱集煤矿0.6Mta新井设计【专题煤巷过断层支护技术概述】.pdf

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。一般部分针对淮南朱集矿井进行了井型为 0.6 Mt/a 的新井设计。朱集矿井位于安徽省淮南市境内，井田走向长约 7.0 km，倾向长约 3.0 km，面积约 21 km2。主采煤层为 13-1#煤层，平均倾角 25，平均厚度 4 m。井田工业储量为 115.5 Mt，可采储量 65.57 Mt，矿井服务年限为 100.2 a。矿井正常涌水量为 342 m3/h，最大涌水量为 462 m3/h；矿井相对瓦斯涌出量为 10.3 m3/t，属高瓦斯矿井。根据井田地质条件，设计采用双立井单水平开拓方式，井田采用全带区式布置方式，共划分为九个带

2、区，一个盘区，轨道大巷、胶带机大巷和回风大巷皆为岩石大巷，布置在13-1#煤层底板岩层中。考虑到本矿井为高瓦斯矿井，矿井通风方式采用两翼对角式通风，并在开采前预掘底板瓦斯抽排巷进行瓦斯提前卸压抽放。针对东一带区采用了带区准备方式，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。针对 13101 工作面进行了采煤工艺设计。该工作面煤层平均厚度为 4.0m，平均倾角3，直接顶为泥岩，老顶为细砂岩。工作面采用长壁综采一次采全高采煤法。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 0.8m，每天四个循环，循环进尺 3.2 m，月推进度 96 m。大巷采用胶

3、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 8t 箕斗提煤，副井采用一对 1.0t 矿车双层四车窄罐笼和一个带平衡锤的1.0t 矿车双层四车宽罐笼运料和升降人员。专题部分题目为深井软岩巷道的矿压观测实例分析与研究，以朱集矿 1111（1）运输顺槽底抽巷为工程例，进行了详实的矿压观测数据收集与处理，给出了深井软岩巷道的变形收敛规律，对矿井生产实践具有显著的指导意义。翻译部分题目为 The effect of resin annuls on anchorage performace of fully encapuslated rockbolts，主要介绍了树脂

4、环厚度对锚杆锚固性能的影响。关键词关键词：朱集矿井；双立井；带区布置；综采大采高；两翼对角式；煤巷；断层 ABSTRACT This design includes three parts:the general part,the special subject part and the translation part.The general design is about a 0.6 Mt/a new underground mine design of Zhuji coal mine.Zhuji coal mine is located in Huainan,Anhui province

5、.Its about 7.0 km on the strike and 3.0 km on the dip,with the 21.0 km2 total horizontal area.The minable coal seam is 13-1#with an average thickness of 4.0 m and an average dip of 3.The proved reserves of this coal mine are 115.5 Mt and the minable reserves are 65.57 Mt,with a mine life of 72.9 a.T

6、he normal mine inflow is 342 m3/h and the maximum mine inflow is 462 m3/h.The mine gas emission rate is 10.3 m3/t which can be recognized as high gas mine.Based on the geological condition of the mine,this design uses a duel-vertical shaft single-level development method,and full strip preparation,w

7、hich divided into eight bands and two districts,and track roadway,belt conveyor roadway and return airway are all rock roadways,arranged in the floor rock of 13-1#coal seam.Taking into account of the high gas emission,mine ventilation method use two diagonal wings ventilation,and excaves bottom gas

8、drainage roadway before mining to relief gas pressure in advance.The design applies strip preparation against the first band of East One which divided into 7 stirps totally,and conducted coal conveyance,ventilation,gangue conveyance and electricity designing.The design conducted coal mining technolo

9、gy design against the 13101 face.The coal seam average thickness of this working face is 4.0 m and the average dip is 3,the immediate roof is mud stone and the main roof is sand stone.The working face applies fully mechanized longwall full-height coal caving method,and uses double drum shearer cutti

10、ng coal which cuts twice each working cycle.Three-Eight working system has been used in this design and the depth-web is 0.8 m with four working cycles per day,and the advance of a working cycle is 3.2 m and the advance is 96 m per month.Main roadway makes use of belt conveyor to transport coal reso

11、urce,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 narrow1.0 t four-car double-deck cage and a wide 1.0t four-car double-deck cage to lift material and personnel transportation.The monogr

12、aphic study entitled Case Study and Research of Deep Soft Rock Pressure Observation,the study took 1111(1)bottom gas drainage Roadway of Zhuji Mine as an example,conducted a detailed pressure observation data collection and processing,gave the deformation and convergence law of soft rock roadway,whi

13、ch had significant guidance for practical mine production.The title of special part is The support of coal roadway when passing through faultage The title of the translated academic paper is The effect of resin annuls on anchorage performace of fully encapuslated rockbolts.Keywords:Zhuji coal mine;s

14、ingle vertical shaft;band mode;full-height coal caving;two diagonal wings ventilation;coal roadway;faultage 目目 录录 1 矿井概况与地质特征.1 1.1 井田概况.1 1.2 井田地质特征.2 1.3 煤层特征.5 2 井田境界和储量.10 2.1 井田境界.10 2.2 矿井工业储量.10 3 矿井工作制度、设计生产能力及服务年限.15 3.1 矿井工作制度.15 3.2 矿井设计生产能力及服务年限.15 4 井田开拓.17 4.1 井田开拓的基本问题.17 4.2 矿井基本巷道.2

15、7 5 准备方式带区巷道布置.35 5.1 煤层地质特征.35 5.2 带区巷道布置及生产系统.35 5.3 带区车场选型设计.39 6 采煤方法.41 6.1 采煤工艺方式.41 6.2 回采巷道布置.51 7 井下运输.53 7.1 概述.53 7.2 带区运输设备选择.54 7.3 大巷运输设备选择.57 8 矿井提升.59 8.1 矿井提升概述.59 8.2 主井提升.59 8.3 副井提升.61 9 矿井通风及安全.63 9.1 矿井通风系统的选择.63 9.2 矿井风量计算.65 9.3 矿井通风阻力计算.76 9.4 选择矿井通风设备.80 9.5 安全灾害的预防措施.85 10

16、 矿井基本技术经济指标.87 专题部分 煤巷过断层支护技术概述.89 1 引言.89 2 煤矿软岩巷道工程理论的进展与现状.90 2.1 煤矿软岩工程支护理论进展与现状.90 2.2 煤矿软岩工程支护技术进展与现状.92 3 煤巷综述.93 3.1 软岩的概念.93 3.2 煤巷的特征.93 3.3 煤巷支护困难原因分析.94 3.4 煤巷变形破坏机理.95 4 煤巷支护技术.100 4.1 煤巷支护结构类型.100 4.2 围岩外部支护.100 4.3 围岩内部加固支护.101 4.4 软岩联合支护.105 5 煤巷过断层支护技术.106 5.1 锚网梁索支护在巷道过断层中的应用.106 5.2 煤巷小倾角大落差逆断层支护.107 5.3 断层破碎带巷道支护技术.108 6 结论.111 参考文献.112 翻译部分 英文原文.113 中文译文.121 致 谢.127 1 矿井概况与地质特征 1.1 井田概况 1.1.1 位置与交通位置与交通 朱集东井田属朱集井田 27 勘探线以东部分，位于安徽省淮南市潘集区与怀远县交界处的武前庄与骑龙庄一带，行政区划隶属淮南市潘集区和怀远县，井田东南