露天开采课程设计

露天开采课程设计—露天开采境界设计学院：资源与环境工程学院专业班级：采矿工程1102完成学期：2013-2014-2指导教师：叶义成刘艳章柯丽华王文杰学号：201101124066姓名：何逢目录1.确定露天矿最小底宽····································12.选取露天矿最终边坡角·································12.1选取台阶坡面角······································································12.2确定台阶高度·········································································13.确定露天矿开采深度····································23.1地质横剖面上的图上的开采深度·················································23.2确定最终开采深度··································································64.绘制露天矿底部周界···································65.绘制露天矿开采终了平面图··························76.绘制露天矿开采分层平面图··························77.绘制露天矿最终开采境界横剖面图················138.绘制露天矿最终开采境界纵剖面图················139.境界内矿岩量表········································1310.采场设计参数表·······································1511.参考文献··················································151露天开采境界设计1.确定露天矿最小底宽汽车运输，并采用回返式调车方式，则其底宽为：ebRBcc5.02minmin(1-1)式中Bmin—露天矿最小底宽，m；Rcmin—汽车最小转弯半径，m；bc—汽车宽度，m；e—汽车距边坡的安全距离，m，e一般取1.0~1.5m。需要10t的自卸汽车，由参考文献[2]查表，故选择型号QQ562汽车可得汽车参数如表1.1。表1.1自卸汽车参数型号载重/t最小转弯半径/m最大爬坡能力/%外形尺寸（长×宽×高）/mmQQ562107.827.56500×2547×2800露天矿最小底宽：mB147.200.1547.25.08.72min故取最小底宽为22m，本设计中爬坡能力选择10%。2.选取露天矿最终边坡角2.1选取台阶坡面角由围岩性质上盘为闪长岩，ƒ=14~16；下盘为石英岩，ƒ=16~18，由参考文献[3]查表，选取上盘非工作台阶坡面角为75°，下盘工作台阶坡面角为75°。2.2确定台阶高度需要150mm潜孔钻机，由参考文献[2]查表，选择型号KQ150潜孔钻机，可得潜孔钻机参数如表2.1。表2.1150mm潜孔钻机参数型号钻孔直径/mm钻孔深度/m推进行程/m钻杆直径/mm钻杆长度/mKQ150150~17017.591339需要1m3电铲，由参考文献[2]查表，选择型号W1001电铲，可得电铲参数如表2.2。2表2.2单斗挖掘机参数型号铲斗容量/m3最大提升量/t动臂长度/m最大挖掘半径/m最大挖掘高度/m最大卸载半径/m最大卸载高度/mW10011.015~206.89.888.75.5由参考文献[1]查表可得，台阶高度主要取决于矿岩性质和装载设备规格。对需穿爆松散的硬岩，阶段高度不超过挖掘机最大挖掘高度的1.25倍。我国设计和生产的露天矿，小型矿山阶段高度一般为8~10m。大、中型矿山一般多为10~12m。在这里取台阶高度为10m。暂不考虑运输平台的影响，并且已确定安全平台宽3m，清扫平台宽6.5m，运输平台宽12m，如图2.1，草拟上下盘帮坡角为58.52°。58.52°清扫平台安全平台36.575.00°1022图2.1最终边坡角3.确定露天矿开采深度3.1地质横剖面上的图上的开采深度如图3.1，为4线上的开采深度，计算各开采深度的境界剥采比有：69.108.187/)65.7428.241(:140jnm90.202.3.15/)73.11892.324(:130jnm97.620.86/)71.24068.359(:120jnm3160°ck412340°基4y503.7y503.8x4437.1XX矿区4线勘探剖面图（1:1000）+100+110+120+130+140+150图3.1矿区4线勘探剖面图开采深度根据各开采深度境界剥采比绘制出关系曲线，图3.2所示，确定矿区4线开采深度为120m。012345678910150145140135130125120115110105100图3.2矿区4线剥采比关系曲线在图3.3中，6线上各开采境界剥采比为：28.217.202/)32.3173.428(:120jnm93.349.160/)64.6896.561(:110jnm478.729.103/)91.13865.664(:100jnmy503.7基6y503.8x4437.2340°160°ck613ck625XX矿区6线勘探剖面图(1：1000)+100+110+120+130+140图3.3矿区6线勘探剖面图开采深度根据各开采深度境界剥采比绘制关系曲线，如图3.4所示，确定6线开采深度为+107m。012345678910150145140135130125120115110105100图3.4矿区6线剥采比关系曲线在图3.5中，8线上各开采境界剥采比为：500.183.128/)66.3479.94(:130jnm60.162.163/)71.8798.173(:120jnm20.527.96/)83.20830.291(:110jnmy503.7y503.8x4437.3160°340°ck814XX矿区8线勘探剖面图(1：1000)基8+100+110+120+130+140图3.5矿区8线勘探剖面图开采深度根据各层境界剥采比绘制出剥采比关系曲线，如图3.6所示，确定8线开采深度为+107m。012345678910150145140135130125120115110105100图3.6矿区8线剥采比关系曲线综上，4线开采深度为+120m，6线开采深度为+107m，8线开采深度为+107m。63.2确定最终开采深度将地质横剖面图上各勘探线开采深度投影到地质纵剖面图上，并根据使少采出的矿石量与多采出的矿石量基本均衡，并让剥采比尽可能小的原则将露天矿矿底调整到同一标高上，如图3.7所示。根据调整原则调整矿底后，确定最终开采深度为+110m。+100x4437.1x4437.2y503.8x4437.34线6线8线+110+120+130+140+150图3.7矿体最终开采深度标高4.绘制露天矿底部周界根据+110m水平矿体，并满足最小底宽的要求，作出露天矿底部周界如图4.1所示：503.9468503.8214.312102052001951901851801751701654437.24437.1基线503.7青岭1654437.44437.3130135140145150155160贝壳山图4.1露天矿底部周界75.绘制露天矿开采终了平面图露天矿开采终了平面图,见图5.1所示：503.9468503.84437.24437.1503.71654437.44437.3130135140+110m+120m+130m+140m+150m+160m+170m+180m+190m468基线图5.1某矿露天矿开采终了平面图6.绘制露天矿开采分层平面图露天矿开采分层平面图,如图6.1至图6.15所示：8+110m468基线图6.1某矿+110m分层平面图+120m468基线图6.2某矿+120m分层平面图9+130m140468基线图6.3某矿+130m分层平面图+140m140468基线图6.4某矿+140m分层平面图10150+150m468基线图6.5某矿+150m分层平面图+160m160468基线图6.6某矿+160分层平面图11+170m170468基线图6.7某矿+170m分层平面图+180m180468基线图6.8某矿+180m分层平面图12+190m190468基线图6.9某矿+190m分层平面图+200m200468基线图6.10某矿+200m分层平面图137.绘制露天矿最终开采境界横剖面图由下图图得到最终边坡角上盘为49.34°，下盘最终边坡角为48.54°。+100+110+120+130+140+150+160+170+180+190+20049.34°48.54°59.76°22.02清扫平台安全平台运输平台6.51312.0175°图7.1某露天矿最终开采境界横剖面图8.绘制露天矿最终开采境界纵剖面图由下图得到端帮边坡角顶帮为50.50°，底帮为64.62°。+100+110+120+130+140+150+160+170清扫平台安全平台运输平台12.046.53197.450.50°75°64.62°图8.1某露天矿最终开采境界纵剖面图9.境界内矿岩量表在AutoCAD中利用AA命令可以在各分层平面图中获取个分层的矿岩面积与矿面积。获取面积后，当上下两面面积大小相差小于40%时可利用公式：HSSV221(9-1)当上下两面面积大小相差大于40%时可利用公式：HSSSSV32121(9-2)当矿体或岩体成楔形尖灭时可利用公式：HSV2(9-3)由此可以得到表9.1：14表9.1某露天矿境界内矿岩量表2100.00010.00012001654.216248.544594.334412.3115218377.3222789.631524412.31151918377.324.1650096372001654.216248.541905398.5911254.375855.7826776.47441800.4468576.9139931188.7855160177.761.561088291905398.5911254.371803256.4915993.7612737.2734261.29474372.2108633.49465450.07949134549.962.1707352931803256.4915993.761707868.1519375.4311507.2843164.03396978.2140142.233108614.1124231528.162.2467363071707868.1519375.431605353.3423032.9317679.5952564.134116747.48169311.614161178.2465348275.642.2210482911605353.3423032.931506915.2634569.1527653.8949074.4181333.92230408.32210252.6465529609.563.6950817531506915.2634569.151405623.3634212.7628589.450154.48224973.16275127.64260407.1265754582.724.4856044761405623.3634212.761304624.5622368.4717743.9140991.68185333.24226324.92301