长平五矿2.40Mta新井设计.doc

1、摘 要本设计是长平五矿2.40Mt/a新井设计，设计矿井为一井一面的高产高效矿井。长平五矿位于山西省高平市西面，交通便利。井田走向长度约4.5km，倾向长读约3.5km，井田总面积为18.76km2。通过对地质资料的深入分析，采用立井单水平开拓方案。主井、副井和风井均位于井田中部，采用中央并列式通风。井田内有两个煤层，且间距小，煤层倾角平均3.4左右。根据煤层赋存条件和井田地质构造特点，采用煤层大巷布置，每个煤层都布置三条大巷，井底车场位于最下煤层的底板岩层中。采煤方法采用倾向长臂采煤法。矿井年工作日为330d，工作制度为“三八”制。在设计中，对大巷的布置方式进行了技术经济比较。全矿分为四个带

2、区。带区采用跳采，沿空掘巷，减少了煤柱损失，增加了矿井的生产效益。在设计中。为了尽可能地实现集约生产，采用一井一面的高效矿井模式。在设计中，采用了综采综掘等先进工艺和技术。这不仅提高了煤炭的开采和掘进效率，而且减小了建井工期和初期投资。运煤采用皮带运输。全矿采用单轨吊辅助运输，减少了换装环节，提高运输能力大和运输连续性，使辅助运输更高效，更安全。通过不断优化设计，优化开采布局，简化生产系统，通过采用先进的技术和装备，提高了开采机械化水平，实现了高度集中生产，进而达到安全、高产、高效的目标。关键词：煤层巷道；倾向长臂；带区开采；沿空掘巷AbstractThis design is the new

3、 mine design of Changping No.5 mine with capability of 2.4Mt/a , and it is a high production and high efficiency mine with one production and one mining face. Changping No.5 mine lies in West of GaoPingnin ShangXi province. The traffic of road and railway is very convenience to the mine.The run of t

4、he minefield is 4.5 km ,the width is about 3.5 km，well farmland total area is 18.762.Through an in-depth analysis of geological data, the development of vertical shaft with single level is adopted. Main shaft, auxiliary shaft and air shaft are all located in the central part of the minefiled, and ce

5、ntral ventilation with downcast shaft and upcast shaft side by side in the central of the mine field is used. There are two coal seams in the mine field, and the spacing among them is small and the average dip of coal seam is about 3.4 . According to the coal seams deposit conditions and mine field

6、geological structure characteristics, the coal seam roadways are used and layout of each seam is three roadways, the bottom strata is laid in the rock stratum under the coal seam floor. Coal mining methods are the stike inclined longwall mining method. In design, roadway layout of the techno-economi

7、c comparison. Mine is divided into four districts. Band with skip-mining along goaf and reduces the loss of coal pillars, increasing the production efficiency of mine. In the design. Intensive production in order to achieve as much as possible, using a pattern of mine. The working system “three-eigh

8、t” is used in the Sehe mine. It produced 330d/a.In the course of design, technical and economic comparison is used in the layout of development roadway. The whole mine field is divided into four strip section. In the strip section,jumping mining and roadway driven along gob are used,and they reduce

9、the loss of coal pillar,and increase the coal mines production benefits. In the design,in order to realize centralized production ,the pattern of high-output- and high-efficiency mine with one producing shaft and one mining face are applied.During the design, the advanced technologies and techniques

10、 such as fully mechanized mining and fully mechanized tunnelling are used.It not only improve the efficiency of coal mining and tunnelling, but also reduce the construction period of coal mine and first investment.Belt transportion is used to transport the coal.The monorails are used in the whole mi

11、ne for auxiliary transport, and these reduce replacement link, improve transport capacity and continuity of transport, and maked auxiliary transport more efficient, safer.Though optimizing design and development layout,simplifying production system and adopting davenced technology and equipment,mini

12、ng mechanization level is improved,and highly centalized production is realized,and the goal of safty-high-output-and-high-efficiency mine is achieved.Keywords:mine concentrated layout;incline longwall;belt layoutroadway driven along gob99目 录前言11 矿区概况及井田地质特征21.1 矿区概况21.1.1 地理位置及交通条件21.1.2 地形、地貌21.1.

13、3 河流及水体31.1.4 气候条件及地震情况31.1.5 矿区经济情况31.1.6 电源、水源及建筑材料来源41.2 井田地质特征41.2.1 井田地质构造41.2.2 地层41.2.3 构造71.2.4 井田水文地质特征91.3 煤层质量及煤层特征111.3.1 煤质及物理性质111.3.2 井田内煤层埋藏条件及顶底板岩性121.3.3 瓦斯赋存状况及煤的自燃性121.4 其他有益矿产121.5 地质勘探程度132 井田境界及储量142.1 井田境界及周边矿井142.2 井田的储量142.2.1 井田储量计算原则142.2.2 矿井工业储量142.3 矿井可采储量152.3.1 边界煤柱的

14、留设原则152.3.2 矿井永久保护煤柱损失量162.3.3 矿井的可采储量163 矿井的年产量、服务年限及一般工作制度183.1 矿井的年产量及服务年限183.1.1 矿井的年产量合理性183.1.2 矿井的服务年限183.1.3 矿井的增产期和减产期，产量增加的可能性193.2 矿井的一般工作制度194 井田开拓204.1 确定井筒形式、数目、位置204.1.1 井筒形式的确定204.1.2 井筒数目204.1.3 井筒位置214.2 井筒参数及断面图224.3 开采水平的设计244.3.1 水平高度的确定244.3.2 第一水平储量及水平服务年限254.3.3 大巷的位置、数目、用途和规

15、格254.4 带区划分及开采顺序284.4.1 带区形式及尺寸的确定284.4.2 开采顺序284.5 开采水平井底车场形式的选择294.5.1 井底车场形式294.5.2 车场硐室294.6 开拓系统综述324.6.1 开拓方式324.6.2 运输系统324.6.3 通风系统324.6.4 排水系统334.6.5 井筒生产时井巷开凿位置及工程量335 采准巷道布置355.1 设计带区的地质概况及煤层特征355.1.1 带区概况355.1.2 煤层地质特征355.1.3 带区生产能力及服务年限355.2 条带的划分365.3 采准系统、通风系统、运输系统365.3.1 采准系统365.3.2 通风系统365.3.3 运输系统365.4 带区开采顺序365.5 带区巷道断面375.6 带区的巷道掘进率、带区回采率375.6.1 巷道掘进率375.6.2 带区回采率376 采煤方法396.1 采煤方法的选择396.1.1 选择的依据和要求396.1.2 采煤方法396.2 开采技术条件396.3 工作面长度的确定406.3.1 按通风能力确定工作面长度406.3.2 根据采煤机能力确定工作面长度406.3.3 按刮板输送机能