钱营孜矿2.4Mta新井设计.doc
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1、编号:( )字 号本科生毕业设计(论文)题目: 钱营孜矿2.4 Mt/a新井设计 固体充填采煤液压支架支护参数设计理论研究 姓名: 学号: 01120073 班级: 采矿工程2012-3班 二 一 六 年 六 月 中 国 矿 业 大 学 本科生毕业设计姓 名: 学 号: 01120073 学 院: 矿业工程学院 专 业: 采矿工程 设计题目: 钱营孜矿2.4 Mt/a新井设计 专 题:固体充填采煤液压支架支护参数设计理论研究指导教师: 职 称: 教 授 2016年6月 徐州中国矿业大学毕业设计任务书学院 矿业工程学院 专业年级 采矿工程2012级 学生姓名 任务下达日期:2016年1月8日毕业
2、设计日期:2016年3月21日 至 2016年6月13日毕业设计题目:钱营孜矿2.4 Mt/a新井设计毕业设计专题题目:固体充填采煤液压支架支护参数设计理论研究毕业设计主要内容和要求:根据采矿工程专业毕业设计大纲,本毕业设计分为一般部分、专题部分和翻译部分,具体包括:1、一般部分:钱营孜矿2.4 Mt/a新井设计,主要内容包括:矿井概况、矿井工作制度及设计生产能力、井田开拓、首采区设计、采煤方法、矿井运输提升、矿井通风系统等。2、专题部分:固体充填采煤液压支架支护参数设计理论研究。3、翻译部分:完成近2年国外期刊上与采矿或煤矿安全有关的科技论文翻译一篇,题目为“Evaluation of th
3、e stress state in two adjacent backfill stopes within an elasto-plastic rock mass”,论文5171字符。院长签字: 指导教师签字:中国矿业大学毕业论文指导教师评阅书指导教师评语(基础理论及基本技能的掌握;独立解决实际问题的能力;研究内容的理论依据和技术方法;取得的主要成果及创新点;工作态度及工作量;总体评价及建议成绩;存在问题;是否同意答辩等):成 绩: 指导教师签字: 年 月 日 中国矿业大学毕业论文评阅教师评阅书评阅教师评语(选题的意义;基础理论及基本技能的掌握;综合运用所学知识解决实际问题的能力;工作量的大小
4、取得的主要成果及创新点;写作的规范程度;总体评价及建议成绩;存在问题;是否同意答辩等):成 绩: 评阅教师签字: 年 月 日 中国矿业大学毕业论文答辩及综合成绩答 辩 情 况提 出 问 题回 答 问 题正 确基本正确有一般性错误有原则性错误没有回答答辩委员会评语及建议成绩:答辩委员会主任签字: 年 月 日学院领导小组综合评定成绩:学院领导小组负责人: 年 月 日摘 要本设计包括三个部分:一般部分、专题部分和翻译部分。一般部分为钱营孜矿2.4 Mt/a新井设计。一般部分共包括 10 章:1、矿区概述及井田地质特征;2、井田境界与储量;3、矿井工作制度、设计生产能力及服务年限;4、井田开拓;5、
5、准备方式采区巷道布置;6、采煤方法;7、井下运输;8、矿井提升;9、矿井通风及安全;10、设计矿井基本技术经济指标。钱营孜矿位于安徽省宿州市西南。井田走向长度约为7.30 km,倾斜长度约为5.18 km,煤层平均倾角为12.8,井田水平面积约为37.84 km2,主采煤层为32煤层,平均厚度为5.28 m。地质条件较为简单。井田工业储量为277.91 Mt,矿井可采储量187.85 Mt。矿井设计生产能力为2.40 Mt/a,矿井服务年限为55.91 a,第一水平服务年限为41.76 a。矿井正常涌水量434 m3/h,最大涌水量为885 m3/h。矿井相对瓦斯涌出量平均为8.5 m3/t,
6、属于高瓦斯矿井。井田开拓方式为立井两水平上下山开拓,二水平采用暗斜井延深方式。一水平标高为-580 m,二水平标高为-760 m。大巷采用胶带输送机运煤,辅助运输采用蓄电池电机车牵引固定矿车。针对32煤层的首采区采用了采区准备方式,分别划分了3个回采工作面,并进行了运煤、运料、通风、排水、排矸、供电系统设计。针对32401工作面进行了采煤工艺设计。该工作面煤层平均厚度为5.28 m,平均倾角11.1。矿井年工作日为330 d,工作制度为“四六”制,工作面采用大采高一次采全厚的综采工艺。采用双滚筒采煤机割煤,往返一次割两刀。截深0.8 m,每天割六刀煤,每天进尺4.8 m,月进度144 m。专题
7、部分题目是固体充填采煤液压支架支护参数设计理论研究。基于固体充填采煤围岩变形及控制特征,给出了充填采场围岩移动的临界状态判别方法,定性分析了充填采煤液压支架工作阻力的影响参数,建立了充填采煤液压支架工作阻力设计的流程方法模型,结合翟镇矿固体充填采煤工程案例,对液压支架工作阻力设计流程进行验证。翻译部分主要内容是弹塑性岩体中相邻两个充填采场的应力状态评估,呈现了用于评估弹塑性岩体(弹塑性模型)的两个相邻充填采场特性的数值模拟的主要结果。这些模拟提供了依次建造的两个充填采场内的应力的评估方法,也提供了在第二采场建造期间,第一个充填采场的应力路径、岩墙位移和水平张力的评估方法。其英文题目为:Eval
8、uation of the stress state in two adjacent backfill stopes within an elasto-plastic rock mass。关键词:钱营孜矿;立井两水平;采区布置;固体充填采煤液压支架;工作阻力设计流程;弹塑性岩体,应力状态评估 ABSTRACTThis design includes three parts:the general part,the special subject part and the translation part.The general part is a new design for Qian Yin
9、gzi mine. This design includes ten chapters: 1.An outline of the mine field geology; 2.Boundary and the reserves of mine; 3.The service life and working system of mine; 4.Development engineering of coalfield; 5.The roadway layout of strip district; 6.The method used in coal mining; 7.Underground tra
10、nsportation of the mine; 8.The lifting of the mine; 9.The ventilation and the safety operation of the mine; 10.The basic economic and technical norms of the designed mine.Qian Yingzi mine is located in the southwest of Suzhou, Anhui province. The strike length of the mine is about 7.30 km,the dip le
11、ngth is about 5.18 km,with an average coal seam dip angle of 12,and the horizontal area is about 37.84 km2.The 32 is the main coal seam ,with an average thickness of 5.28 m. The geologic structure of this minefield is simple.The industrial reserves of the minefield are 277.91 million tons, and the r
12、ecoverable reserves are 187.85 million tons. The designed productive capacity is 2.4 million tons per year, and the service life of this mine is 55.91 years. The service life of the first level is 41.76 years. The normal flow of the mine is 434 m3 per hour and the maximum flow of it is 885 m3 per ho
13、ur. The relative gas emission quantity is with an average of 8.5 m3 per minute, however, it is a high gas mine. The developing way of mine is shaft double level with rise and dip with the extension of blind slope. The first level is -580 m,and the second level is -760 m. The main haulage roadway use
14、s belt conveyor to transit coal, while batterytrolley wagons are used for accessorial transportation in the main track roadway. The ventilation type in the early stage is centralized juxtapose ventilation,while compound ventilation in the late stage.The method of preparation in mining area is applie
15、d in the first working district of 32 coal seam, which is divided into 3 working faces totally, and conducted coal conveyance, material conveyance, ventilation, drainage, gangue conveyance and the design of electricity system. The design of coal mining technology is conducted in the 32401working fac
16、e. The average coal seam thickness of this working face is 5.28 m and the average dip angle is 11.1. The “four- six” working system is adopted in this mine. It produces for 330 days per year. The working face applies fully mechanized longwall full-height coal caving method, and uses double drum shea
17、rer cutting coal which cuts twice during each working cycle. The depth-web is 0.8 m with three working cycles per day, and the advance of a working cycle is 4.8 m and the advance is 144 m per month.The topic of special subject parts is the theoretical study on the design of support parameter for hyd
18、raulic support in solid backfilled minimg. Base on the movement and control of rock mass in critical state in solid backfilled mining,give the discriminated method of movement of rock mass,analyze the influence parameter of hydraulic support resistance qualitatively,build the model of design process
19、 of the support resistance. Finally,combined with engineering cases in Zhaizhen mine, we verify the design process of support resistance.Translation part is about evaluation of the stress state in two adjacent backfill stopes within an elasto-plastic rock mass。The main results of numerical simulatio
20、ns conducted to assess the behavior of two neighboring backfilled stopes in an EP rock mass (EP model) have been presented. These simulations provide an evaluation of the stresses within the two backfilled stopes created in sequence, as well as an assessment of the stress paths, rock walls displacem
21、ents and horizontal strains in the first backfilled stope during creation of the second opening. Its English title is “Evaluation of the stress state in two adjacent backfill stopes within an elasto-plastic rock mass。”Keywords:Qian Yingzi mine; Shaft with two levels; The layout of mining area; solid
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