孔庄煤矿1.20Mta新井设计.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。一般部分为孔庄煤矿1.20Mta新井设计。孔庄煤矿位于江苏省徐州市西北大约80km处，井田位于江苏省沛县和山东省微山县境内，其东为山东省微山县金源煤矿，南、北分别是江苏天能集团的沛城煤矿和上海大屯能源股份有限公司的徐庄煤矿。井田平均走向长度5.4km，平均倾向长度3.2km，井田面积约17.3km2。煤层倾角平均为12，倾角变化较小，可采煤层为7煤和8煤，设计煤层为8煤，平均厚度5.0m。矿井工业储量302.2Mt，可采储量200.6Mt，设计服务年限111.4a。矿井正常涌水量185m3/h，最大涌水量345m3/h。矿井相对瓦斯涌出量

2、1.84m3/min，属低瓦斯矿井。煤层自燃倾向性为三类，煤尘具爆炸危险性。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：立井单水平开拓加辅助水平开拓，一水平上山开采，辅助水平上下山开采，辅助水平大巷设在煤层中；方案二：立井加暗斜井延伸两水平开拓，水平通过石门与其水平岩石大巷相连通，二水平通过井底车场与二水平岩石大巷相连通；方案三：立井两水平开拓（岩巷），立井延伸，设两水平，两水平均通过石门与上下水平岩石大巷相连通；方案四：立井两水平开拓（煤巷），立井延伸，设两水平，两水平均通过石门与上下水平煤层大巷相连通。通过粗略和详细技术经济比较，最终确定方案三为最优方案。一水平标高-660m，

3、二水平标高-820m。整个井田划分为5个采区。采用中央并列式通风。矿井采用采区式准备方式，工作面设计长度200m。采用综合机械化一次采全高工艺。矿井年工作日为330d，昼夜净提升时间为16h。矿井采用“三八”制工作制度，两班生产，一班检修。生产班每班完成3个采煤循环。循环进尺为0.5m，日产量3866.94Mt。矿井煤炭采用胶带输送机运输，辅助运输采用蓄电池式电机车牵引固定箱式矿车。主井采用两对12t底卸式箕斗提煤，副井采用一对1.5t矿车双层四车加宽罐笼运送物料和升降人员。专题部分题目为：浅析矿井煤与瓦斯突出机理及防治。主要综述了煤与瓦斯突出事故的机理、预测及指标检验、防治和保障体系。翻译部

4、分主要内容是关于基于LBM的计算机模拟巷道中瓦斯的运移和阻滞模型及其应用。英文题目是：Simulation model of gas migration and hindering in underground tunnel based on LBM。关键词：立井；两水平；采区；综合机械化一次采全高；中央并列式通风9ABSTRACTThis design includes three parts: the general design, the monographic study and the translation.The general design is about a 1.2Mt/a

5、 new underground mine design of Kongzhuang Coal Mine. Kongzhuang Coal Mine lies in the northwest of Xuzhou City, Jiangsu province. The transportation in the mining area is very convenient. Its about 5.4km on the strike and 3.2km on the dip, with the 17.3km2 total area. There are 2 minable coal seam.

6、 The main aquifer coal seam is 8 coal seam with an average thickness of 5.0m, and the average dip of 8 coal seam is 12. The proved reserves of this coal mine are 302.2Mt and the minable reserves are 200.6Mt, with a mine life of 111.4a. The normal mine inflow is 185m3/h and the maximum mine inflow is

7、 345m3/h. The mine relative gas emission quantity is 4.436m3/t, and the absolute gas emission quantity is 30.806m3/min. Thus, it is a low gas mine. The coal seam has spontaneous combustion tendency, and the coal dust has explosion hazard.Based on the geological conditions of the mine, four available

8、 project in technology was brought forward. The first is vertical shaft development with a single mining level including a auxiliary level; the second is vertical shaft development with two mining levels, the deep extension of blind slope; the third is vertical shaft development with two mining leve

9、ls, and the tunnel is set in the rock seam; the last is vertical shaft development with two mining levels, and the tunnel is set in the coal seam. The third project is the best comparing with other three projects in technology and economy. The first mining level is -660m, the second mining level is

10、-820m . The mine field is divided into five mining districts. The type of mine ventilation is the centralized juxtapose ventilation . Designed first mining district makes use of the method of the mining district preparation. The design length of working face is 200m, which uses fully mechanized mini

11、ng overall height in one times technology. The working days in one year are 330. Everyday it takes 16 hours in lifting the coal. The operation mode in the mine is “three-eight” with two teams mining and the other overhauling. Every mining team makes three working cycle. So everyday there are 6 worki

12、ng cycles. The advance of a working cycle is 0.5m, and the quantity of 3866.94 ton coal is maked everyday.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. The main shaft uses two double 12t skips to lift coal and the auxiliary shaft uses a t

13、wins wide 1.5t four-car double-deck cage to lift material and personnel transportation.The monographic study entitled “Initial analysis on the mechanism and prevention of coal and gas outburst”. The study mainly summarized themechanism ,forecast, verify, prevention and insurance system of coal and g

14、as outburst.The translated academic paper is about Numerical simulation of the gas migration and hindering in the tunnel. Its title is “Simulation model of gas migration and hindering in underground tunnel based on LBM”.Keywords: shaft; two mining levels; mine district; fully mechanized mining overa

15、ll height in one times technology; centralized juxtapose ventilation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井田位置11.1.2交通11.1.3矿权11.1.4自然地理21.1.5矿区经济概况21.1.6水源及电源21.2井田地质特征21.2.1区域地层21.2.2井田地质构造31.2.3水文地质特征51.2.4其它有益矿物61.3煤层特征71.3.1煤层概况71.3.2煤层赋存状况91.3.3煤质91.3.4瓦斯91.3.5煤尘及煤的自燃92 井田境界和储量102.1井田境界102.1.1井田范围

16、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储量计算基础102.3.2矿井地质储量计算112.3.3矿井工业储量计算122.4矿井可采储量122.4.1井田边界保护煤柱122.4.2工业广场保护煤柱132.4.3断层保护煤柱142.4.4大巷保护煤柱142.4.5矿井可采储量153 矿井工作制度、设计生产能力及服务年限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、数目、位置