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内蒙某矿立井施工组织设计中天合创能源有限责任公司门克庆矿井一号回风立井井筒掘砌施工组织设计中煤第一建设有限公司第十工程处二0一0年七月二十八日目录TOC\o"1-2"\h\z\u第一章工程概况 3一、矿井简介 3二、回风立井井筒特征 4三、井筒工程地质情况 5四、瓦斯 18第二章凿井施工方案及机械化作业线配置 23一、施工方案的确定 23二、机械化作业线配置 23(一)机械化作业线配置方式及内容 23(二)提升悬吊系统选型 26(三)辅助系统选型设置 42(四)配套安全设施设置 50第三章施工准备工作及施工总平面布置 52一、先期施工条件 52二、技术准备 52三、施工人员进场 52四、工程准备 52五、井筒施工准备 54第四章井筒施工工艺 55一、双层井壁段施工 55二、单层井壁段施工 56三、冻结段信息化施工 66四、施工中遇到问题及对策 66五、解冻后井壁壁后空隙处理措施 78六、揭煤安全施工 78七、井筒冻结与掘砌配合措施 79八、井筒穿过不良地层施工措施 79九、井筒综合防治水措施 80十、劳动组织及循环作业方式 81第五章进度计划和工期保证措施 91一、进度计划和工期安排 91二、工期保证措施 92第六章资源配置及主要技术经济指标 93第七章质量目标、质量保证体系及保证质量的主要措施 97一、工程质量目标 97二、建立健全质量保证体系 97三、质量标准及技术要求 97四、质量控制点 98五、关键工序的控制措施 98六、保证质量目标的主要措施 100七、质量检测监测手段 102第八章安全技术措施 105一、安全目标 105二、安全管理、组织机构 105三、各项安全管理制度 105四、组织、技术措施 113第九章文明施工、环保、消防措施 131一、文明施工 131二、环境保护措施 131三、消防措施 132四、安全质量标准化施工措施 132第十章计划、统计和信息管理 134一、计划、统计报表的编制与传递 134二、信息管理 134第十一章施工中需要补充专项安全技术措施 135前言一、编制原则:二、编制依据:第一章工程概况一、矿井简介1、交通门克庆井田位于鄂尔多斯市乌审旗图克镇,井田位于东胜煤田呼吉尔特矿区,地处内蒙古自治区鄂尔多斯市境内,行政区划隶属乌审旗和伊金霍洛旗。井田南北走向长度约7.4km,东西倾斜宽约13.4km,井田面积约98.08km2,地质资源量2727.85Mt。本区地表为风积沙,居民稀少且分散,各居民点之间多为沙石便道。井田的北侧有306省道(府谷~深井)通过,东部边界以外13km处有G210国道呈南北向通过,经G210国道向南可到达陕西省榆林市,向北可到达鄂尔多斯市东胜区。东胜区是鄂尔多斯市政治、经济、文化、通信中心和重要的交通枢纽,交通网络四通八达,北距包头市108km,南至包(头)~神(木)铁路大柳塔车站78km,西达乌海市360km,东抵准格尔旗薛家湾镇120km。根据最新的铁路规划方案,乌审地方铁路从新包西铁路上的新街站接轨,从门克庆井田北部边缘东西向通过,并为门克庆矿井井设有接轨点,是本矿井煤炭外运的主要通路。该区公路、铁路畅通,交通较为便利,为煤炭外运及其它物资的运输创造了比较有利的交通条件。2、地形地貌本井田位于鄂尔多斯高原的东北部,区内地形总体趋势是东南部较高,西北部较低。最高点海拔标高为+1341.20m;最低点位于井田西部边缘,海拔标高为+1304.50m3、河流水系区内无常年地表径流,雨水多通过风积沙渗入地下。井田的西北角有一小型泄洪沟,流向东北,该泄洪沟较浅,平时无水,只有在大雨或暴雨时才有水流过;井田以北约2.0km有一察汗淖碱湖。4、气候地震区内气候特征属于干旱的温带高原大陆性沙漠气候,太阳辐射强烈,日照较丰富,干燥少雨,风大沙多,无霜期短。冬季漫长寒冷,夏季炎热而短暂,春季回暖升温快,秋季气温下降显著。据鄂尔多斯市气象局历年资料:当地最高气温为+36.6℃,最低气温为-30.1℃;年降水量为194.7~531.6mm,平均为396.0mm,且多集中于7、8、9三个月内;年蒸发量为2297.4~2833mm,平均为2534.2mm,年蒸发量为年降水量的5~10倍。区内最大风速为28.7m/s,一般风速2.3~5.2m/s,且以西北风为主。冻结期一般从10月份开始至次年5月份,最大冻土深度为1.74m,最大沙尘暴日为50d井田所在地乌审旗、伊金霍洛旗的地震烈度为6度,属弱震区。5、建筑材料区内建筑材料匮乏。矿区主要建筑材料多从外地运入。目前区内已有几处小型建材厂,多处小规模机砖厂,矿井初期建设所需的砖、瓦、沙、石等大宗建材可由当地提供,但当地沙、石多数质量不高,使用时应严把质量关。6、供电矿井工业场地内新建临时110kV变电站,出线电压等级10KV,可满足矿井施工用电负荷要求。二、回风立井井筒特征一号回风立井井筒井口设计标高+1305.8m,井筒净直径8.0m,井筒深度736.4m;采用全井冻结。井筒主要技术特征见下表:回风立井井筒主要技术特征表序号项目单位风井1井口中心座标mX=4311487.636Y=19364409.5662井口设计标高mZ=+1305.8003提升方位角90°00′00″4设计净直径m85设计净断面m50.36井底车场标高m+580.8(深度725)7冻结深度m7458井筒深度m736.49井壁厚度双层段mm500/700单层段mm800或1000按井壁结构的不同将井筒由上而下分为井颈段15m(井深0~15m)、双层井壁段225m(井深15~240m)、单层井壁段496.4m(井深240~260m、井深260~530m、530-736.4m)。风井井筒井壁结构见下表。风井井筒井壁结构表序号井筒深度m井壁结构砼强度等级内壁mm外壁mm10—15预留风硐及安全出口段215—240钢筋砼700钢筋砼500C30-C503240—260钢筋砼1200C504260—530钢筋砼800C55-C655530—736.4钢筋砼1000C65-C75三、井筒工程地质情况1、井筒地层及工程地质根据地质勘察报告,井筒穿过的地层为:第四系(Q3+4)地层,包括第四系上更新统萨拉乌素组(Q3s)和第四系全新统风积砂(Q4eol);白垩系下统(K1)地层,为志丹群(K1zh);侏罗系中统(J2)地层,包括安定组(J2a)、直罗组(J2z)和延安组(J2y)。风井井筒检查孔地质柱状见表1;风井井筒穿过地层埋深汇总表2;风井井筒检查孔岩土物理、力学性能试验成果见表3;志丹群岩石物理力学性质统计见表4;安定组岩石物理力学性质统计见表5;直罗组岩石物理力学性质统计见表6;延安组岩石物理力学性质统计见表7;门克庆井检查孔冷冻样抗压强度测试结果汇总见表8。风井井筒检查孔(3#孔)地质柱状表1序号岩性层厚(m)累厚(m)序号岩性层厚(m)累厚(m)序号岩性层厚(m)累厚(m)1中砂48.5048.5029细粒砂岩2.20477.0957粉砂岩4.15676.412粉砂7.5056.0030砂质泥岩2.40479.4958煤0.90677.313粘土13.0069.0031细粒砂岩10.25489.7459砂质泥岩1.10678.414细粒砂岩49.81118.8132中粒砂岩4.86494.6060粉砂岩7.00685.415中粒砂岩30.93149.7433粉砂岩6.70501.3061中粒砂岩23.21708.626细粒砂岩31.14180.8834中粒砂岩12.80514.1062粗粒砂岩3.70712.327中粒砂岩7.15188.0335细粒砂岩2.10516.2063煤7.18719.508细粒砂岩32.29220.3236中粒砂岩4.20520.4064粉砂岩1.01720.519粉砂岩14.44234.7637粉砂岩7.50527.9065细粒砂岩2.55723.0610细粒砂岩48.00282.7638细粒砂岩4.30532.2066煤0.50723.5611粉砂岩4.75287.5139粉砂岩4.87537.0767粉砂岩9.56733.1212细粒砂岩24.57312.0840细粒砂岩1.70538.7768砂质泥岩8.55741.6713粉砂岩11.50323.5841粉砂岩4.65543.4269细粒砂岩3.58745.2514细粒砂岩4.70328.2842中粒砂岩1.30544.7270砂质泥岩1.00746.2515粉砂岩11.49339.7743细粒砂岩3.99548.7171中粒砂岩6.29752.5416细粒砂岩13.62353.3944砂质泥岩3.00551.7172粗粒砂岩3.00755.5417粉砂岩21.72375.1145中粒砂岩2.70554.4173粉砂岩4.00759.5418细粒砂岩1.40376.5146砂质泥岩4.35558.7674煤3.56763.1019粉砂岩2.75379.2647粉砂岩13.20571.9675砂质泥岩0.60763.7020细粒砂岩3.75383.0148中粒砂岩7.54579.5076细粒砂岩3.92767.6221粉砂岩14.45397.4649粉砂岩20.12599.6277粉砂岩6.50774.1222中粒砂岩4.30401.7650粗粒砂岩21.97621.5978细粒砂岩1.00775.1223细粒砂岩4.30410.8651粉砂岩6.01627.6079粉砂岩5.42780.5424粉砂岩20.56431.4252砂质泥岩1.60629.2080细粒砂岩14.76795.3025细粒砂岩2.20433.6253粉砂岩14.80644.0081砂质泥岩3.80799.1026粉砂岩2.55436.1754粗粒砂岩22.57666.5782粗粒砂岩5.07804.1727中粒砂岩31.62467.7955粉砂岩4.05670.6228粉砂岩7.10474.8956细粒砂岩1.64672.26井筒穿越地层埋深汇总表(单位:m)表2井筒名称第四系(Q3+4)白垩系下统侏罗系中统志丹群(K1zh)安定组(J2a直罗组(J2z)延安组(J2y)风井(3#孔)0~69.0069.00~353.39353.39~520.40520.40~666.57666.57~804.17风井井筒检查孔(3#孔)岩石物理、力学性能试验成果表表3样品编号岩石名称采样深度(m)天然容重g/cm3干容重g/cm3孔隙率%含水率%抗压强度(MPa)变形指数天然抗剪抗拉强度(MPa)干燥饱和弹模(10GPa)泊松比内聚力(MPa)内摩擦角(度)6细粒砂岩81.00~83.802.472.4412.22.3215.8010.700.7450.240.8537.560.427细粒砂岩90.40~91.692.442.4013.72.9516.2011.200.7450.250.8637.650.458细粒砂岩103.00~104.212.562.549.91.966.503.800.4120.260.4236.420.239细粒砂岩113.00~113.982.462.4411.30.3812.407.400.5320.240.5036.250.2610细粒砂岩128.00~128.982.362.3213.40.8910.206.100.4920.250.5237.450.2811细粒砂岩140.00~151.152.342.3312.71.406.003.500.4120.260.4336.540.2312细粒砂岩161.50~162.992.502.4610.21.0819.2011.901.0210.231.0637.980.5813细粒砂岩179.60~180.632.502.4710.83.1814.909.200.7450.240.7237.56036.14中粒砂岩186.80~187.862.612.596.51.236.604.400.4570.260.4836.450.2415细粒砂岩192.00~193.002.572.548.32.216.904.700.4260.270.4636.580.2316细粒砂岩199.50~202.132.592.585.50.655.903.500.3120.270.4236.210.2317细粒砂岩207.50~208.562.412.3711.20.268.605.200.3290.260.4336.240.2418细粒砂岩215.50~217.302.642.618.72.5016.5010.200.7580.240.8537.420.4519粉砂岩223.70~224.842.382.3710.92.0414.609.300.7690.250.8037.120.4120粉砂岩229.70~231.012.382.3113.81.0416.5010.900.4120.240.4537.520.2421细粒砂岩240.00~240.992.602.558.61.598.005.000.4020.260.4236.980.2322细粒砂岩246.50~247.632.642.626.72.165.903.500.3950.260.4336.890.2323细粒砂岩260.00~260.892.452.4411.61.894.602.600.4020.270.4136.450.2324细粒砂岩268.00~268.902.572.567.61.806.103.600.3560.260.4336.750.2325细粒砂岩274.00~275.002.452.4210.41.005.603.200.4120.270.4636.240.2326细粒砂岩280.00~280.992.562.556.20.987.204.900.4120.300.4236.450.2427粉砂岩284.50~285.542.512.506.70.946303.900.3260.290.4636.240.2628细粒砂岩293.00~294.072.532.476.81.9614.909.400.6520.260.7136.890.3629细粒砂岩299.50~298.462.582.566.21.686.904.100.4920.260.5136.250.2630细粒砂岩304.50~305.512.592.555.61.847.604.600.5720.280.6036.410.3031细粒砂岩310.00~311.042.572.565.51.258.605.200.5120.240.5336.180.2832粉砂岩313.80~319.932.532.513.51.8014.909.700.7540.230.9037.250.4533粉砂岩321.50~322.502.612.584.11.168.505.400.4690.260.5236.450.2634细粒砂岩326.50~327.432.452.4311.31.4214.509.100.7590.270.8437.150.4235粉砂岩331.50~332.792.572.564.81.3412.808.200.7020.260.7237.450.3936粉砂岩338.50~339.632.522.5011.031.386203.700.4590.260.5236.520.2637细粒砂岩344.30~345.232.342.3212.451.424.502.400.4120.270.4936.450.2538细粒砂岩352.00~353.022.432.4212.321.968.905.400.4290.260.5336.290.2639粉砂岩355.30~356.862.412.3910.490.8536.8028.002.5140.192.6239.451.3240粉砂岩362.50~363.632.452.4212.320.8928.9020.802.3150.202.4238.651.2341粉砂岩367.90~371.272.412.359.620.6924.5017.402.1790.212.2638.451.1542细粒砂岩373.00~374.002.562.537.330.7426.4019.301.9580.202.0938.751.0643细粒砂岩375.30~375.942.502.4313.213.4630.2023.002.4580.192.6238.621.3644粉砂岩377.00~377.912.352.3413.970.9126.9020.702.3590.202.4938.251.2645细粒砂岩380.20~381.342.472.3714.753.1623.5016.202.2480.202.4138.121.2346粉砂岩384.30~385.342.462.4211.680.4330.6022.002.3150.202.4938.751.2646-1粉砂岩390.50~391.462.682.6210.271.9631.2022.203.4120.192.5238.651.2747粉砂岩396.00~397.062.422.3811.851.2721.8014.602.1230.222.2438.561.1248中砂岩398.50~399.472.472.4112.681.2134.1024.902.5480.182.6538.951.3049粉砂岩404.30~405.512.562.5114.633.7740.2029.303.1250.183.1239.581.5650细粒砂岩409.30~410.302.532.5211.891.7133.2023.602.3560.212.4538.641.2651粉砂岩411.30~412.322.622.587.861.2529.7020.802.4120.202.5238.121.2752粉砂岩417.00~418.052.592.587.191.0428.6020.002.5070.232.5638.651.2853粉砂岩423.30~424.432.742.685.962.4141.7032.503.1860.183.1239.891.5954粉砂岩429.50~430.412.592.558.602.0029.6021.302.5410.232.4538.451.2655细粒砂岩431.50~432.582.512.4710.511.2118.5013.001.8570.221.9838.460.9856粉砂岩433.70~435.012.472.4410.620.45214015.402.1350.212.2438.541.1257中粒砂岩436.30~437.212.482.4710.510.4519.9013.701.7580.201.8538.210.9858中粒砂岩440.50~441.432.502.478.520.4217.9012.401.5240.231.6537.560.8859中粒砂岩447.26~448.542.502.4710.510.7416.2010.501.6090.241.6538.650.8560中粒砂岩452.70~454.442.672.615.431.5614.708.501.1300.241.2537.240.6561中粒砂岩457.66~458.902.672.626.430.9112.507.401.0030.251.0336.540.5662中粒砂岩463.25~464.242.672.655.021.4712.807.801.0090.261.1036.120.5563粉砂岩466.50~467.292.672.643.651.9117.5010.501.2010.261.2136.450.6564粉砂岩467.90~470.202.652.625.761.3121.5015.301.9580.232.0138.121.0165粉砂岩472.40~474.042.592.586.20.7621.6015.302.1360.232.2138.541.1266细粒砂岩475.60~476.582.762.724.60.3426.9019.402.3740.212.4336.981.2367砂质泥岩477.60~478.522.622.604.40.5228.6020.602.4710.202.5038.451.2568细粒砂岩482.60~484.202.372.3713.40.6214.9010.101.2950.241.3237.450.6569中粒砂岩488.30~489.122.362.3414.30.9713.909.200.9520.231.0136.210.5570粉砂岩492.50~494.172.612.589.22.2812.708.100.7420.250.8636.420.4571中粒砂岩503.45~504.292.592.5610.82.5118.6014.601.4130.241.6538.020.8872中粒砂岩508.70~509.732.552.519.02.7021.8015.502.0180.232.2038.451.1073细粒砂岩514.50~516.262.612.5810.42.7718.9013.001.5870.231.9838.650.9874中粒砂岩519.30~520.132.392.3612.61.2417.4011.801.6520.241.8537.690.8875粉砂岩526.40~527.502.592.5310.03.4326.9019.402.3010.202.4138.451.2176细粒砂岩528.20~529.132.562.5210.02.2024.3017.302.4010.192.4338.211.2377粉砂岩532.50~533.382.602.5611.12.3728.1021.402.3950.192.4538.451.2678细粒砂岩536.80~537.662.442.4013.01.7224.6018.202.3100.202.4038.351.2079粉砂岩541.80~542.632.622.599.43.0121.5015.302.2850.222.3938.951.2080中粒砂岩543.60~544.462.392.3513.00.7523.9017.402.3690.212.4538.651.2381细粒砂岩547.30~548.032.592.5610.22.6625.6019.202.4180.232.5038.451.2582中粒砂岩550.70~551.522.502.4810.80.8127.8021.102.4080.202.5138.621.2683砂质泥岩557.70~558.642.602.5610.82.7629.6023.102.4960.192.6038.291.3084粉砂岩560.30~561.282.612.568.20.9328.1021.902.3510.192.4538.451.2685粉砂岩568.18~569.172.622.609.72.1229.4022.901.3250.181.4238.421.2486中粒砂岩576.60~577.602.592.598.52.1628.5021.702.3010.192.4139.421.2387粉砂岩581.40~582.292.632.618.42.3427.6016.302.5070.202.5038.141.2688粉砂岩588.60~589.452.652.646.00.2824.5016.702.4980.222.4938.751.2589粉砂岩597.90~598.932.492.478.90.7023.9017.402.3480.212.4338.651.2390粗粒砂岩604.20~605.262.512.4810.80.2518.6013.801.8570.231.9538.470.9891粗粒砂岩612.29~613.282.492.455.00.3717.6012.101.4210.241.6537.980.8892粗粒砂岩619.25~620.102.462.457.20.4218.5012.601.4820.231.6037.850.8893粉砂岩624.30~625.112.472.4411.90.3824.8018.102.1390.202.2438.651.1294砂质泥岩627.70~628.772.572.558.90.3226.7019.502.1530.192.4538.451.2395粉砂岩630.75~631.262.512.508.81.3025.8017.802.3180.232.4338.651.2396粉砂岩637.50~638.342.622.587.51.1221.6015.602.4150.222.5038.421.2597粉砂岩642.00~643.022.652.627.10.0826.8019.602.3690.192.4638.541.2498粗粒砂岩649.50~650.652.622.614.00.3328.9020.502.3950.192.5238.651.2799粗粒砂岩654.00~654.932.392.388.12.7823.5016.202.5000.202.4238.541.23100粗粒砂岩658.20~659.302.542.5310.03.3921.5015.902.1030.212.1938.651.10101粗粒砂岩665.10~666.022.412.379.20.9518.4013.601.5920.231.6238.420.85102粉砂岩667.00~667.932.532.506.72.0820.4014.101.9850.222.0438.961.02103细粒砂岩670.80~671.692.432.409.81.0428.9019.702.3570.192.4938.451.26104粉砂岩672.50~674.792.592.557.31.9628.4020.402.4310.182.5238.241.27105煤675.00~676.001.411.337.03.5830.9023.202.3140.192.4538.451.27106砂质泥岩676.80~677.502.462.446.90.9534.2026.002.4850.182.6038.651.35107粉砂岩677.50~678.842.542.507.12.0541.6032.903.2100.153.2040.211.65108中粒砂岩692.30~693.172.532.509.42.3233.1024.202.4160.192.5639.541.32109中粒砂岩398.80~699.842.472.467.91.0224.3017.502.3020.202.4138.121.21110中粒砂岩707.20~708.142.552.517.42.0726.4020.102.3790.192.4638.451.23111粗粒砂岩709.00~710.012.572.538.31.9623.5016.202.4080.222.4138.171.21112粉砂岩717.50~718.582.502.498.10.9521.9016.002.1980.212.2637.651.15113细粒砂岩721.10~722.322.412.409.10.2326.3018.702.2680.202.4638.951.23114粉砂岩724.70~725.882.562.537.32.2729.4021.502.4120.192.4539.121.27115粉砂岩729.80~730.922.442.429.40.7025.6018.202.3180.192.4638.411.26116砂质泥岩733.20~734.152.432.4110.70.4828.9020.802.5070.182.5138.521.25117砂质泥岩739.90~740.822.542.518.70.6128.9021.102.4580.192.4339.021.23118细粒砂岩742.00~743.102.602.585.81.5130.2020.802.4780.182.5238.751.27119砂质泥岩745.60~746.012.522.514.60.5332.6023.502.6070172.6038.651.30120中粒砂岩748.60~749.492.612.595.80.9424.8016.902.5870.222.4938.471.24121粗粒砂岩752.60~753.472.462.448.60.4326.8017.202.4780.192.5138.651.25122粉砂岩755.60~756.702.592.576.50.9627.9019.002.5230.202.5638.251.27123砂质泥岩762.50~763.632.602.586.20.7024.6017.002.4710.222.4638.451.24124细粒砂岩767.40~768.562.402.477.10.8527.6.19.302.4190.192.3837.951.20125粉砂岩770.00~771.032.512.507.41.1130.4021.902.3140.192.4338.651.24126细粒砂岩774.30~775.052.622.616.50.2028.6019.702.3080.192.4139.121.26127粉砂岩776.50~779.272.402.389.51.2926.9018.302.4750.202.4537.451.25128细粒砂岩780.60~781.652.552.535.91.1830.4022.202.4980.192.5338.251.28129细粒砂岩793.80~794.932.542.533.41.3828.4020.202.3840.202.4638.641.23130砂质泥岩795.60~796.662.652.614.00.5026.5017.802.4190.212.4237.491.22131粗粒砂岩801.00~801.962.682.655.01.2126.5018.302.3020.202.4138.941.21.志丹群岩石物理力学性质统计表表4岩类指标粉砂岩类细粒砂岩中粒砂岩最小-最大均值(样数)标准差最小-最大均值(样数)标准差最小-最大均值(样数)标准差天然容重(g/cm3)2.32-2.612.47(20)0.08712.12-2.752.46(71)0.13822.22-2.612.36(4)0.1752干容重(g/cm3)2.28-2.582.44(20)0.09302.05-2.662.42(71)0.14352.15-2.592.29(4)0.2022孔隙率2.0-17.79.85(20)4.57730.80-23.6011.41(71)5.84786.50-22.7017.40(4)7.3729比重2.46-2.812.68(20)0.07782.36-2.882.74(71)0.08522.74-2.802.77(4)0.0250含水率(%)0.26-10.31.77(20)2.10510.26-10.722.76(71)2.43531.23-6.824.10(4)2.3927抗压强度(Mpa)干燥5.80-20.7012.28(20)3.88004.50-24.3010.02(71)4.32136.60-10.207.70(4)1.6852饱和3.10-12.807.56(20)2.49222.40-15.606.10(71)2.75374.10-6.204.73(4)0.9912软化系数0.53-0.660.61(20)0.02860.53-0.690.60(71)0.02940.58-0.670.61(4)0.0434变形指数弹模×104Mpa0.29-0.850.53(20)0.17710.24-1.020.47(71)0.16530.25-0.460.35(4)0.0842泊松比0.23-0.290.26(20)0.01950.23-0.300.26(71)0.01810.24-0.290.26(4)0.0216天然抗剪C(Mpa)0.28-0.900.57(20)0.18790.24-1.060.49(71)0.18420.23-0.480.32(4)0.1156Φ(度)36.22-37.8937.07(20)8.302935.98-37.9836.81(71)0.486936.45-36.9836.78(4)0.2300抗拉强度(Mpa)0.12-0.480.29(20)0.10680.12-0.580.26(71)0.10460.12-0.240.16(4)0.0566安定组岩石物理力学性质统计表表5岩类指标粉砂岩类细粒砂岩中粒砂岩最小-最大均值(样数)标准差最小-最大均值(样数)标准差最小-最大均值(样数)标准差天然容重(g/cm3)2.12-2.742.43(41)0.17322.15=2.762.48(17)0.12552.11-2.672.40(23)0.1662干容重(g/cm3)2.06-2.682.39(41)0.17672.10-2.722.44(17)0.12862.02-2.652.36(23)0.1824孔隙率3.65-22.9012.78(41)5.59764.60-23.1011.75(17)4.58805.02-27.3014.10(23)6.5336比重2.54-2.982.74(41)0.09472.63-2.862.77(17)0.07022.46-2.862.74(23)0.0804含水率(%)0.43-11.193.45(41)3.36070.34-10.172.52(17)2.90470.42-13.004.40(23)4.0605抗压强度(Mpa)干燥10.70-43.8027.48(41)6.725313.30-40.2025.60(17)7.330912.50-35.221.90(23)7.7820饱和6.20-32.5019.08(41)5.56917.70-28.9017.65(17)5.64777.40-24.914.49(23)4.6686软化系数0.58-0.780.69(41)0.05200.58-0.760.68(17)0.05230.58-0.730.65(23)0.0370变形指数弹模×104Mpa0.77-3.412.11(41)0.57550.85-2.791.95(17)0.51010.95-2.551.75(23)0.4519泊松比0.18-23.000.77(41)3.55810.19-18.001.27(17)4.31190.18-0.260.22(23)1.010.0202天然抗剪C(Mpa)0.88-3.122.14(41)0.54800.89-2.802.03(17)0.52321.01-2.651.81(23)0.4497Φ(度)36.25-39.8938.07(41)0.903636.98-49.2538.65(17)2.780836.12-38.9637.69(23)0.8226抗拉强度(Mpa)0.41-1.591.08(41)0.28070.45-1.461.04(17)0.27120.55-1.300.93(23)0.2229直罗组岩石物理力学性质统计表表6岩类指标粉砂岩类细粒砂岩中粒砂岩粗粒砂岩最小-最大均值(样数)标准差最小-最大均值(样数)标准差最小-最大均值(样数)标准差最小-最大均值(样数)标准差天然容重(g/cm3)2.12-2.742.43(41)0.17322.15=2.762.48(17)0.12552.11-2.672.40(23)0.16622.25-2.632.46(12)0.1131干容重(g/cm3)2.06-2.682.39(41)0.17672.10-2.722.44(17)0.12862.02-2.652.36(23)0.18242.21-2.602.42(12)0.1101孔隙率3.65-22.9012.78(41)5.59764.60-23.1011.75(17)4.58805.02-27.3014.10(23)6.53365.60-19.6010.75(12)4.5600比重2.54-2.982.74(41)0.09472.63-2.862.77(17)0.07022.46-2.862.74(23)0.08042.56-2.832.71(12)0.0931含水率(%)0.43-11.193.45(41)3.36070.34-10.172.52(17)2.90470.42-13.004.40(23)4.06050.46-10.302.87(12)3.2391抗压强度(Mpa)干燥10.70-43.8027.48(41)6.725313.30-40.2025.60(17)7.330912.50-35.221.90(23)7.782020.30-32.2025.57(12)3.2834饱和6.20-32.5019.08(41)5.56917.70-28.9017.65(17)5.64777.40-24.914.49(23)4.668614.50-23.8018.06(12)2.5554软化系数0.58-0.780.69(41)0.05200.58-0.760.68(17)0.05230.58-0.730.65(23)0.03700.68-0.760.71(12)0.0284变形指数弹模10GPa0.77-3.412.11(41)0.57550.85-2.791.95(17)0.51010.95-2.551.75(23)0.45191.69-2.402.06(12)0.2253泊松比0.18-23.000.77(41)3.55810.19-18.001.27(17)4.31190.18-0.260.22(23)1.010.02020.19-0.220.22(12)0.0144天然抗剪C(Mpa)0.88-3.122.14(41)0.54800.89-2.802.03(17)0.52321.01-2.651.81(23)0.44971.85-2.432.15(12)0.2012Φ(度)36.25-39.8938.07(41)0.903636.98-49.2538.65(17)2.780836.12-38.9637.69(23)0.822636.78-39.4237.90(12)0.8196抗拉强度(Mpa)0.41-1.591.08(41)0.28070.45-1.461.04(17)0.27120.55-1.300.93(23)0.22290.88-1.261.09(12)0.1146延安组岩石物理力学性质统计表表7岩类指标粉砂岩类细粒砂岩中粒砂岩最小-最大均值(样数)标准差最小-最大均值(样数)标准差最小-最大均值(样数)标准差天然容重(g/cm3)2.25-2.742.50(43)0.11972.35-2.762.50(17)0.09962.36-2.672.51(13)0.1077干容重(g/cm3)2.21-2.682.47(43)0.12222.34-2.722.46(17)0.09972.32-2.652.47(13)0.1073孔隙率3.65-22.4010.36(43)4.48863.40-15.1010.77(17)3.37815.02-16.8010.65(13)3.5875比重2.57-2.972.76(43)0.08712.64-2.862.76(17)0.06602.68-2.852.76(13)0.0459含水率(%)0.43-9.432.18(43)2.29160.34-3.461.50(17)0.93670.38-3.471.34(13)0.9592抗压强度(Mpa)干燥17.50-41.7031.05(43)6.071414.90-43.6028.96(17)7.301512.50-41.8022.65(13)0.9301饱和10.50-32.5022.51(43)5.139010.10-31.4020.68(17)5.81677.40-31.8015.49(13)7.4182软化系数0.60-0.780.72(43)0.03580.60-0.780.70(17)0.03870.58-0.760.66(13)0.0511变形指数弹模×104Mpa1.20-3.412.43(43)0.37001.30-2.762.25(17)0.33910.95-2.751.74(13)0.6089泊松比0.16-0.260.20(43)0.02030.17-0.240.21(17)0.01870.16-0.260.22(13)0.0290天然抗剪C(Mpa)1.21-3.122.47(43)0.32611.32-2.862.33(17)0.35181.01-2.821.82(13)0.6060Φ(度)36.45-39.8938.58(43)0.669436.98-39.4538.33(17)0.695336.12-40.1237.83(13)1.1413抗拉强度(Mpa)0.65-1.591.25(43)0.16110.65-1.461.18(17)0.19510.55-1.420.93(13)0.2918门克庆井检查孔冷冻样抗压强度测试结果汇总表表8层位试样编号取样深度(m)干密度g/cm3含水量(%)试验温度℃抗压强度MPa破坏

应变(%)3#钻孔2-5-151.65~51.801.6123.53-109.3815.612-5-352.00~52.201.6222.73-108.7915.542-5-652.60~52.801.6522.32-109.8613.432、井筒水文地质2.1、含隔水层水文地质特征2.1.1第四系上更新统萨拉乌素组孔隙潜水含水层全区分布,岩性为灰黄色、灰绿色中粒砂及粉细砂,下部夹有黄土状亚砂土薄层,含钙质结核,疏松。在井筒地段组厚55.00~70.30m,2、1号孔段较薄,3号孔处较厚。根据2、3号钻孔抽水试验资料,水位分别埋深0.85m、1.05m,含水层厚度48.15~47.45m,静止水位标高1301.50~1302.19m。沙层潜水的水温为9℃~10℃,属冷水。从抽水结果看,沙层潜水富水性按统降统径单位涌水量为中等~强。因2号孔处沙层含水层粒度以中粒级居多,夹粉沙、细沙、粗粒沙层,而3号孔处以中细沙为主,夹粉沙、粉土。所以2号孔水量比3号孔明显较大。2.1.2白垩系下统志丹群风化基岩孔隙、裂隙承压水含水层含水层为白垩系下统志丹群洛河组砂岩,全区分布,在井筒区厚度286.25~306.55m,平均293.87m。含水层岩性为砖红色中、粗粒砂岩,次为细粒砂岩。岩层上部风化裂隙发育,下部孔隙发育较强,总体岩石疏松、易碎,是地下水运移储存的有利岩层。根据本次2、3号钻孔抽水试验资料,水位埋深1.07~2.10m,静止水位标高1300.94~1301.48m,水柱高度354.18~359.45m,含水层厚度286.25~306.55m,水位降深11.81~15.53m,涌水量5.618L/s,单位涌水量0.362~0.476L/s.m,渗透系数0.116~0.138m/d,富水中等。志丹群地下水温度10.5℃。2.1.3侏罗系中统安定组碎屑岩类孔隙、裂隙承压水含水层岩性为紫褐色中细粒砂岩夹灰绿色粉砂岩。根据1号钻孔抽水试验资料,含水层厚度83.85m,水位埋深28.10m,水位标高1278.27m,水柱高度472.25m。抽水试验最大水位降深24.36m,涌水量0.912L/s,单位涌水量0.0374L/s.m(统降单位涌水量0.0105L/s.m),渗透系数0.0404m/d,富水性弱。该含水层主要含水层段为侏罗系中统安定组地层(J2a)的砂岩,从水文地质剖面可以看出,安定组岩性砂岩与较致密的粉砂岩、砂质泥岩含量基本均等。2.1.4侏罗系中统直罗组及延安组孔隙、裂隙承压水含水层直罗组厚度173.00~176.55m,延安组揭露厚度84.08~135.95m。含水层岩性主要为粗、中、细粒砂岩,直罗组含水层厚度85.00m左右,延安组75.00m左右,累计160.00m左右。垂向上与粉砂岩、泥岩及砂质泥岩隔水层成互层状分布。根据3号孔抽水,直罗、延安组水位埋深20.64m,水位标高1281.91m,水柱高度783.36m。最大降深39.10m,涌水量0.260L/S,单位涌水量0.00665L/S.m(统降统径单位涌水量0.00457L/s.m),渗透系数0.00332m/d,影响半径22.50m。由于本岩组砂岩岩石致密较坚硬,裂隙发育微弱,故含水层富水性弱。该含水层为井田的直接充水含水层和主要充水含水层,对井筒而言为弱充水层。该含水层段含水岩层主要为煤层顶板的各粒级砂岩,纵向上与粉砂岩、砂质泥岩及泥岩等隔水岩层成互层状分布。煤层底板岩层以粉砂岩、泥岩为主,含水性能极差。2.2、井筒涌水量根据井筒所穿透的各含水层富水性,其主要充水层位为第四系松散砂层段、白垩系志丹群强风化岩段。砂层水水源丰富,补给条件有利,涌水强度大,井壁结构松散极不稳定,是井筒第一强充水层。第二充水层志丹群强风化岩段,该层段虽然渗透系数小,但厚度大,水源充沛,岩石松软易碎,充水容易携带岩屑,并脱落井壁,造成充水层出水量不断增大。安定、直罗延安组裂隙承压水水源补给条件差,透水性差,充水量及强度微弱。但其承压水头高,泥岩、砂质泥岩易风化,在节理、裂隙发育处对井筒充水量会有所增大。从钻孔抽水试验资料可以看出,各井筒经过的松散砂层段属于中等~强富水,志丹群强风化岩段为中等富水,其它含水层为弱富水。井筒的主要充水途径为松散砂层孔隙和岩层中发育的风化裂隙及构造节理裂隙和粗颗粒岩层的孔隙。以围岩孔隙涌水和裂隙涌水为主要充水方式。各充水层以水平透水、汇水为特征,随着井筒的垂直向下延伸,水位(水头)压力也不断增大,井筒围岩渗水面压力也增大,引起软岩段充水通道松弛,导水裂隙易张裂掉块,发生充水相对集中状况。井筒涌水量预算结果见表9。风井(3#孔)各含水层水位半降深条件涌水量预算成果表表9含水层参数第四系志丹群安定组直罗及延安组备注K(m/d)4.1940.1160.04040.00332H(m)47.45354.18472.25783.36h(m)23.725177.0900M(m)47.45286.2582.15160.02S(m)23.725177.09472.25783.36R(m)1338.751206.29949.21451.37r(m)3.753.753.753.75Q(m3/d)3789.335654.871626.93490.80合计11561.93Q(m3/h)157.89235.6267.7920.45合计481.76从表中可见,第四系与白垩系地层涌水量很大,侏罗系安定组也富水性较强。应当指出的是:风井井筒净半径以3.75m计算的,目前风井井筒净半径变为4.0m,按新的井壁净半径计算则涌水量会更大。因此,全井施工采用冻结法封水。四、瓦斯、煤尘及煤的自燃、地温及其它1.瓦斯据钻孔瓦斯测定成果见表10,煤层甲烷含量在0.00~0.19ml/g·rad之间。自然瓦斯成分中甲烷在0.00~12.25%之间,瓦斯分带为二氧化碳~氮气带及氮气~沼气带。矿井为低瓦斯矿井。钻孔瓦斯测试成果表表10煤层号瓦斯含量(ml/g.燃)自然瓦斯成分(%)瓦斯分带CH4CO2CH4CO2N2C2-C62-10.00-0.060.02(9)0.00-0.050.03(9)0.00-10.352.43(9)0.36-12.323.33(9)85.75-99.6494.23(9)0.00(9)2-2中0.00-0.060.02(15)0.00-0.220.04(15)0.00-11.463.53(15)0.57-15.484.46(15)77.58-98.8992.01(15)0.00(15)3-10.00-0.150.03(20)0.01-0.060.03(20)0.00-7.632.90(20)0.77-18.253.64(20)79.35-99.0993.46(20)0.00(20)4-10.00-0.120.03(20)0.00-0.090.03(20)0.00-7.192.48(20)0.76-12.494.78(20)81.41-98.3292.73(20)0.00(20)4-2中0.01(1)0.06(1)0.22(1)7.24(1)92.54()0.00(1)5-10.01-0.050.03(7)0.00-0.070.03(7)0.55-5.372.09(7)0.83-8.454.38(7)86.18-98.2893.53(7)0.0097)5-20.01-0.040.02(8)0.01-0.080.03(8)0.38-5.561.87(8)1.91-6.173.49(8)90.63-97.1594.64(8)0.00(8)6-2上0.01-0.050.03(5)0.01-0.090.04(5)0.00-9.502.71(5)0.56-14.475.94(5)85.53-95.4591.34(5)0.00(5)6-2中0.00-0.190.04(17)0.01-0.110.04(17)0.00-12.253.46(17)0.87-14.445.77(17)80.92-96.3190.77(17)0.00(17)井田内煤层埋藏深,煤矿在生产时应加强通风,对井下瓦斯进行严密监测,以防事故发生。2.煤尘各可采煤层的挥发分产率较高,一般在30~40%,属易爆炸煤层。煤芯样煤尘爆炸性试验结果:当火焰长度>400mm时,抑止煤尘爆炸最低岩粉量为65~80%,煤尘有爆炸性。3.煤的自燃据钻孔煤芯样自燃趋势测试结果见表11:煤吸氧量在0.57~1.15cm3/g,煤层自燃等级为Ⅰ~Ⅱ级,自燃倾向性为容易自燃~自燃。自燃趋势试验成果表表11煤层号煤吸氧量cm3/g自然等级自燃倾向2-10.79-1.040.90(4)Ⅰ容易自燃2-2中0.57-1.150.79(12)Ⅰ~Ⅱ容易自燃~自燃3-10.60-0.890.76(13)Ⅰ~Ⅱ容易自燃~自燃4-10.57-0.980.80(13)Ⅰ~Ⅱ容易自燃~自燃4-2中0.66-0.780.73(3)Ⅰ~Ⅱ容易自燃~自燃5-10.45-0.900.75(13)Ⅰ~Ⅱ容易自燃~自燃5-20.59-0.990.77(10)Ⅰ~Ⅱ容易自燃~自燃6-2上0.63-0.930.76(10)Ⅰ~Ⅱ容易自燃~自燃6-2中0.62-0.950.78(13)Ⅰ~Ⅱ容易自燃~自燃煤层易发生自燃的主要因素有:(1)煤的变质程度较低,挥发分较高,含氧较高。(2)煤中丝炭含量较高,吸氧性强,易氧化。(3)煤层中所含黄铁矿结核及薄膜在潮湿状态下氧化放热促进煤的自燃。据“内蒙古煤矿设计院”近年来对部分电厂用煤调查结果表明,东胜煤田各煤层的自燃发火期一般为40~60天,存放地点、堆积高度及堆积方式均与自燃有关,望有关部门加强管理,确保安全。4.地温井田内有6个钻孔进行了简易地温测量见表12,结果表明:最大地温梯度为3.01℃/100m,最小地温梯度为2.59℃/100m,平均2.75℃/100m,其中有一个钻孔的地温梯度大于3℃/钻孔简易测温统计表表12钻孔号变温带地温(℃)恒温带地温(℃)增温带地温(℃)地温梯度(℃/100m)20m80m80m120m120m终点深度m地温HS1110.410.710.711.311.386033.63.01MS199.110.310.311.011.090033.12.83MS268.611.211.211.711.788032.02.67MS328.411.211.212.012.088533.22.77MS338.010.010.010.710.790031.02.60MS3413.014.414.414.914.988034.62.59平均9.611.311.311.911.932.92.7510.511.622.45.放射性经对自然伽玛曲线进行认真分析研究,确定井田内无自然伽玛异常层。第二章凿井施工方案及机械化作业线配置一、施工方案的确定根据井筒设计技术特征、工程地质条件及我处多年立井施工经验及凿井设备装备能力,进行该井筒施工方案的选择,为保证井筒掘砌施工技术的可靠性、先进性及其施工的持续稳定性,确定采用立井综合机械化配套施工方案,冻结法凿井。二、机械化作业线配置(一)机械化作业线配置方式及内容井架:Ⅴ型凿井井架三盘:钢结构封口盘、固定盘和双层吊盘提升:两套单钩提升。主提采用2JKZ—4/15绞车,副提采用2JK—3.5/20绞车,主提采用5m3座钩式吊桶,副提采用4m3(3m凿岩:SJZ—6.10型伞钻打眼,高威力抗冻水胶炸药,长脚线毫秒延期电雷管,中深孔光面爆破。装岩:HZ-6型中心回转抓岩机2台,YC60型挖掘机。支护:采用4m段高YJM型液压整体金属模板砌壁,装配式组合金属模板套壁砼搅拌与运输:两台JS-1500强制式搅拌机集中搅拌砼,PL-3000配料机,主提采用3m3底卸式吊桶下放砼,副提采用2.4通风:采用FBDNO7.1/2×37KW型风机4台,两趟∮800mmPVC阻燃抗静电风筒压入式通风。压风:GA110—8.5型空压机集中供风。排水:DC50-80×10型卧泵排水。照明:地面各机房、配电所、稳车房等室内照明采用日光灯,在工业场区、马路及排矸场所使用节能灯具,井筒及井口棚内照明采用煤矿防爆专用照明灯具。通讯与信号:井筒设置主、副提各自独立的声光信号、通讯电缆各一趟,井上、下直通电话。翻矸台上设有二套独立的声光信号,可以和井口进行联系。井口与绞车房采用独立的声光信号和直通电话,配备电视监控系统。项目部安装小型程控电话交换机,实现地面各车间办公室的互相通话,井下吊盘、井口吊盘上安装本质安全型电话,通过耦合器接入程控交换机,实现井口、井下与项目部的联系,井下吊盘与井底采用气喇叭进行联系。监控系统:井筒设置监控电缆一趟。在吊盘下设置瓦斯、一氧化碳传感器,在井口封口盘下设置瓦斯、一氧化碳传感器,在地面设置监控室,对井下工作面及井筒内的有害气体进行监控。附图:回风立井井筒平面布置图(外壁段)回风立井井筒平面布置图(内壁段)回风立井稳绞平面布置图回风立井稳绞立面布置图门克庆煤矿回风立井稳绞设施及钢丝绳配套一览表门克庆煤矿回风立井稳绞设施及钢丝绳配套一览表序号用途及名称吊重(kg)总重(kg)绞车天轮钢丝绳安全系数规格型号数量(台)规格型号数量(台)合计规格数量(根数×长度)单重(kg)总重(kg)悬吊导向1主提升绞车9805145662JKZ-4/151Φ2.51118×7+FC-Φ40-1770-特1×900561656167.92副提升绞车8115108212JK-3.5/201Φ2.51118×7+FC-Φ34-1770-特1×900405940597.73吊盘稳车5052581383JZ-25/130041×Φ1.054486×19+FC-ф46-1770左2右24×8405628225126.454风、水管路稳车23932316682JZ-16/800A12×Φ0.81126×19+FC-Φ38-1670左1右12×840341068206.25排水管稳车20432273762JZ-16/800A12×Φ0.81126×19+FC-Φ36-1770左1右12×840382276446.46抓岩机稳车907312117JZ-16/800A21×Φ0.822418×7+FC-Φ32-17701×840335233526.17安全梯稳车25003461JZA2-5/100011×Φ0.6512318×7+FC-Φ18-16701×84094518906.28模板稳车3300046888JZ-16/800A41×Φ0.84486×19+FC-Φ36-1770左2右24×8403822152888.19主提稳绳稳车763010369JZ-16/800A11×Φ0.651126×19+FC-Φ

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