朱雙樓煤礦2.4mt摘要

1、PAGE 摘 要本設計包括三個部分：一般設計部分、專題設計部分和翻譯部分。一般部分為張雙樓礦2.4 Mt/a的新井設計。張雙樓煤礦位于江蘇省徐州市境內，東有沛屯鐵路與隴海線相連，交通十分便利。井田走向（東西）長平均約7.61 km，傾向（南北）長平均約3.02 km，井田水平面積為22.98 km2。主采煤層一層，即7號煤層，平均傾角22，厚約9.0 m。井田工業(yè)儲量為316.89 Mt，可采儲量218.61 Mt，礦井服務年限為65.06 a。井田地質條件簡單，表土層平均厚度250 m；礦井正常涌水量為320 m3/h，最大涌水量為340 m3/h；煤層硬度系數f=2.3，煤質牌號為氣煤44

2、；礦井絕對瓦斯涌出量為1.84 m3/min，屬低瓦斯礦井；煤層有自燃發(fā)火傾向，發(fā)火期36個月，煤塵具有爆炸危險性。根據井田地質條件，提出四個技術上可行開拓方案。方案一：立井兩水平開采，一水平-550 m，立井延深至-950 m水平；方案二：立井兩水平開采，一水平-550 m，暗斜井延深至-950 m水平；方案三：立井三水平開采，一水平-500 m，二水平-750 m，立井延伸至-1000 m水平；方案四：立井三水平開采，一水平-500 m，二水平-750 m，暗斜井延伸至-1000 m水平。通過技術經濟比較，最終確定方案二為最優(yōu)方案。將主采煤層劃分為兩個水平，一水平標高-550 m，二水平標

3、高-950 m，因井田走向大斷層將井田分為南北兩部分，井田南部為一水平服務范圍，井田北部為二水平服務范圍。設計首采區(qū)采用采區(qū)準備方式，工作面長度168 m，采用綜采放頂煤采煤法，全部跨落法處理采空區(qū)。礦井采用“三八”制作業(yè)，兩班半生產，半班檢修。生產班每班2個循環(huán)，日進5個循環(huán)，循環(huán)進尺0.8 m，日產量7272.7 t。大巷采用帶式輸送機運煤，輔助運輸采用1.5 t固定箱式礦車。主井裝備一套16 t雙箕斗和一套16 t單箕斗帶平衡錘提煤，副井裝備一對1 t礦車雙層四車罐籠帶平衡錘擔負輔助運輸任務。礦井采用中央并列式通風。通風容易時期礦井總需風量7410 m3/min，礦井通風總阻力1388.

4、6 Pa，風阻0.11 Ns2/m8，等積孔3.44 m2，礦井通風容易。礦井通風困難時期礦井總風量7410 m3/min，礦井通風總阻力2605.05 Pa，風阻0.17 Ns2/m8，等積孔2.81 m2，礦井通風中等困難。設計礦井的噸煤成本120 元/t。專題部分題目是礦井熱害產生的原因、危害及其防治措施。翻譯部分是一篇關于巖石的抗拉強度實驗，數值模擬和分析研究的論文，英文原文題目為：Experimental, numerical and analytical studies on tensile strength of rocks。關鍵詞：立井開拓；暗斜井延深；采區(qū)布置；放頂煤；中央并

5、列式ABSTRACTThis design can be divided into three sections: general design, monographic study and translation of an academic paper.The general design is about a 2.4 Mt/a new underground mine design of Zhangshuanglou coal mine. Zhangshuanglou coal mine lies in Xuzhou, Jiangsu province. As Peitun railwa

6、y run across the east part of the mining field connect to Longhai railway, the traffic is very convenient. Its about 7.61 km on the strike and 3.02 km on the dip,with the 22.98 km2 total horizontal area. The minable coal seam of this mine is only 7 with an average thickness of 9.0 m and an average d

7、ip of 22. The proved reserves of this coal mine are 316.89 Mt and the minable reserves are 218.61 Mt, with a mine life of 65.06 a.The geological condition of the mine is relatively simple. The normal mine inflow is 320 m3/h and the maximum mine inflow is 340 m3/h. It is bituminous coal 44 with low m

8、ine gas emission rate and coal spontaneous combustion tendency, and its a coal seam liable to explosion.Based on the geological condition of the mine, I bring forward four available project in technology. Option One: Shaft two-level mining, a level of -550 m, vertical shaft deep to the -950 m level;

9、 Option II: vertical shaft two-level mining, a level of -550 m, dark inclined deep to the -950 m level; Option III:shaft mining of three levels, a level of -500 m, the level of -750 m vertical shaft extends to the -1000 m level; program four: vertical shaft three levels of exploitation, a level of -

10、500 m, -750 m, the second level, dark inclined shaft extends to the-1000 m level. The first project is the best comparing with other three project in technology and economy. The first level is at -550 m, The second level is at -950 m, Because a major fault lies in the center of mine field, the mine

11、field is divided into the north section and the south section, the south section is one level service scope, and the north section is two level service scope.Designed first mining district makes use of the method of preparation in HYPERLINK /dict_result.aspx?searchword=%e9%87%87%e5%8c%ba&tjType=sent

12、ence&style=&t=mining+area mining area, the length of working face is 168 m, which uses fully-mechanized coal mining technology, and fully caving method to deal with goaf. The working system is “three-eight”,with two teams mining, and the other overhauling. Every mining team makes three working cycle

13、, with six working cycle everyday. Advance of working cycle is 0.8 m, and quantity of 7272.7 ton coal is maked everyday.Main roadway makes use of belt conveyor to transport coal resource, and mine car to be assistant transport. Main shaft makes use of skip to transport coal resource, when subsidiary

14、 shaft makes use of cage to be assistant transport. In the prophase of mining the mine makes use of centralized ventilation method,when in the evening of mining the mine makes use of areas ventilation method. At the easy time of mine ventilation, the total air quantity is 7410 m3 per minute, the tot

15、al mine ventilation resistance is 1388.6 Pa, the coefficient of resistance is 0.115 Ns2/m8, equivalent orifice is 3.44 m2. At the difficult time of mine ventilation, the total air quantity is about 7410 m3 per minute, the total mine ventilation resistance is 2605.05 Pa, the coefficient of resistance is 0.175 Ns2/m8, equivalent orifice is 2.81 m2. The cost of the designed mine is 120 yuan per ton.The monographic study is Mine heat damage to the causes of hazards