中桥南铁矿水资源综合利用方案的研究
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摘要
以当涂县中桥南铁矿矿坑涌水量风险分析和矿排水综合利用为研究目标,在矿区地质普查成果的基础上,确定详查中水文地质勘查程度、设计相应的工作内容;在对包括详查在内的野外勘查资料进行综合分析与整理的基础上,综述该铁矿区域和矿区的地质与水文地质条件,建立水文地质概念模型与相应的数值模拟模型;结合矿山开采的初步方案,预测矿坑正常涌水量,并进行相关的风险分析;在分析生产各环节需水水质要求与水量变化、矿坑涌水水质条件与水量变化过程的基础上,从环境保护与水资源节约角度,计算矿山生产需用水量,研究水资源综合利用方案。基于承压转无压井公式运用Monte Carlo法计算涌水量预测值风险概率的思路如下:进行不确定分析,利用灵敏度分析法确定主要风险因子;基于承压转无压流公式运用Monte Carlo法生成涌水量随机数;依据贝努利定理计算涌水量风险率。矿坑涌水量预测,数值法较解析法更贴近现实,东区在三年内涌水量计算值序列平均值为5874.6m~3/d,西区为28895m~3/d;西区第一种情况(见3.2.2.2节),69298.97m~3/d风险率为0.4333,第二种情况37579.07m~3/d风险率为0.3144;东矿段污废水循环使用率达到78.55%,并实现无害排放,生产供水保证率为100%,西矿段第一种情况下的生产供水保证率为100%,第二种情况下的生产供水保证率为99.91%。
Risk analysis of pit's water inflow and multiple utilization of water resource in Zhongqiaonan iron mine were regarded as disquisitive target,we ascertained hydrological geological perambulation's extent and designed related working content basing on the result of diggings' geologic survey;on basis of multiple analysis and arrangement of field perambulation's datum which included detailed perambulation's report,we summarized area and diggings' geological and hydrological geological condition of the iron mine,established the hydrological geological conceptual model and corresponding numeric simulative model;we forecast water inflow in layer and made correlative risk analysis combining mining's primary scheme;on the basis of analysing water quality's demand and water volume's change of water need in each tache of production,qualification of water quality and process of flow's change of pit's gushing water,in terms of environmental protection and saving of water resource,we calculated mine's producing water requirement and studied multiple-utilizing scheme of water resource.Basing on flow formula of artesian-phreatic well and Monte Carlo method,train of thought of calculating risk probability of pit's water inflow was as follows:making uncertainty analysis,utilizing method of sensitivity analysis ascertianing main risk factors;making random numbers of pit's water inflow;according to Bernoulli theorem calculating risk ratio.For predicting pit's water inflow,numerical method comparing with analytic method more closing to reality,the average of a series of calculational value for pit's yield was 5874.6m~3/d in east ore block at three years,the average was 28895m~3/d in west ore block;in the first situation of west ore block(section 3.2.2.2 for details),risk ratio of pit's yield was 0.4333 to 69298.97m~3/d;in the second condition risk ratio of pit's yield was 0.3144 to 37579.07m~3/d;in east ore block,ratio of sewage and re-use was 78.55% and utilization harmlessly discharging can be achieved for water resources,reliability of water supply for production was 100%,in west ore block the reliability was 100%in the first condition and 99.91%in the second condition.
Risk analysis of pit's water inflow and multiple utilization of water resource in Zhongqiaonan iron mine were regarded as disquisitive target,we ascertained hydrological geological perambulation's extent and designed related working content basing on the result of diggings' geologic survey;on basis of multiple analysis and arrangement of field perambulation's datum which included detailed perambulation's report,we summarized area and diggings' geological and hydrological geological condition of the iron mine,established the hydrological geological conceptual model and corresponding numeric simulative model;we forecast water inflow in layer and made correlative risk analysis combining mining's primary scheme;on the basis of analysing water quality's demand and water volume's change of water need in each tache of production,qualification of water quality and process of flow's change of pit's gushing water,in terms of environmental protection and saving of water resource,we calculated mine's producing water requirement and studied multiple-utilizing scheme of water resource.Basing on flow formula of artesian-phreatic well and Monte Carlo method,train of thought of calculating risk probability of pit's water inflow was as follows:making uncertainty analysis,utilizing method of sensitivity analysis ascertianing main risk factors;making random numbers of pit's water inflow;according to Bernoulli theorem calculating risk ratio.For predicting pit's water inflow,numerical method comparing with analytic method more closing to reality,the average of a series of calculational value for pit's yield was 5874.6m~3/d in east ore block at three years,the average was 28895m~3/d in west ore block;in the first situation of west ore block(section 3.2.2.2 for details),risk ratio of pit's yield was 0.4333 to 69298.97m~3/d;in the second condition risk ratio of pit's yield was 0.3144 to 37579.07m~3/d;in east ore block,ratio of sewage and re-use was 78.55% and utilization harmlessly discharging can be achieved for water resources,reliability of water supply for production was 100%,in west ore block the reliability was 100%in the first condition and 99.91%in the second condition.
引文
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[2]刘猛.傍河水源地地下水数值模拟研究[D].南京:河海大学,2006
[3]刘佩贵.地下水开采的风险率估算模型及应用[D].南京:河海大学,2008
[4]文宏展.可靠性分析在确定地下水允许开采量中的应用[J].地下水,2002,24(2):103-104
[5]安徽省水文局.安徽省行业用水定额(DB34/T 679—2007).合肥:安徽省水文局,2007
[6]中煤特殊凿井(集团)有限责任公司.安徽省当涂县中桥南铁矿详查地质报告[R].合肥:华东冶金地质勘查设计院,2008
[7]华东冶金地质勘查设计院.安徽省当涂县白象山铁矿详查地质报告[R].合肥:华东冶金地质勘查设计院,2007
[8]Y.Z.Tao and K.J.Wang.Determining groundwater recharge based on isotope concentration varying with pumping process[Abs].the 18th Annual V.M.Goldschmidt Conference,Vancouver,Canda,July 3-18,2008.Geochimica et Cosmochimica Acta,2008,72(12),Suppl.1:A933
[9]沈照理.水文地球化学基础[M].北京:地质出版社,1986
[10]和成矿业发展有限公司.和县龙塘沿铁矿矿区水文地质勘查报告[R].合肥:华东冶金地质勘查设计院,2007
[11]祝国瑞.地图学[M].武汉:武汉大学出版社,2004
[12]薛禹群.地下水动力学原理[M].北京:地质出版社,1986
[13]束龙仓,朱元生,孙庆义等.地下水允许开采量确定的风险分析[J].水利学报,2000,(3):77-81
[14]刘克琳.水库分期汛限水位调整与风险研究[D].南京:南京水利科学研究院,2006
[15]束龙仓,朱元生,孙庆义等.地下水资源评价结果的可靠性探讨[J].水科学进展,2000,11(1):21-24
[16]徐钟济.蒙特卡罗方法[M].上海:上海科学技术出版社,1985
[17]赵国藩.工程结构可靠性理论与应用[M].大连:大连理工大学出版社,1999
[18]吴兴征,丁留谦,张金接.防洪堤的可靠性设计方法探讨[J].水利学报,2003,(4):94-100
[19]Cleve B.Moler.Numerrical Computing with MATLAB[M].Houston:Society for Industrial and Applied Mathematics,2004
[20]金光炎.水文水资源随机模拟[M].北京:中国科学技术出版社,1993
[21]盛骤,谢式千,潘承毅.概率论与数理统计[M].北京:高等教育出版社,1989
[22]安徽太平矿业有限公司.安徽太平矿业有限公司前常铜铁矿采选改扩建 工程可行性研究报告[R].长沙:长沙有色冶金设计研究院,2008
[23]和成矿业发展有限公司.安徽省和县龙塘沿铁矿矿产资源开发利用方案[R].马鞍山:马鞍山矿山设计院,2006
[24]安徽金安矿业有限公司.安徽金安矿业有限公司300万吨/年选矿厂扩建工程可行性研究报告[R].马鞍山:马鞍山矿山设计院,2005
[25]内蒙古黑鹰山铁矿.内蒙古黑鹰山铁矿80万t/a选厂水道报告[R].马鞍山:马鞍山矿山设计院,2008
[26]王方东.普通浓缩沉淀法处理选矿废水的技术改进[J].节能环保,2006,(5):30-32
[27]程坤,张宗华,杨琳琳.铁矿尾矿水处理回收再利用的试验研究[J].矿冶,2006,15(1):22-23,下转第9页
[28]新余铁坑矿业公司.新余铁坑矿业公司40万吨/年褐铁矿选矿工程设计[R].马鞍山:马鞍山矿山设计院,2008
[29]淮北徐楼矿业有限公司.淮北徐楼铁矿(95万t/a)采选工程水资源论证报告书[R].合肥:合肥工业大学,2008
[30]严煦世,刘遂庆.给水排水管网系统[M].北京:中国建筑工业出版社,2002
[31]中华人民共和国公安部.建筑设计防火规范(GB 50016—2006).北京:中华人民共和国公安部,2006
[32]张自杰,林容忱,金儒霖.排水工程[M].北京:中国建筑工业出版社,1999
[33]淮南矿业(集团)有限责任公司望峰岗矿井.矿井水及生活污水处理工程初步设计[R].煤炭工业合肥设计研究院,2006
[34]李圭白,张杰.水质工程学[M].北京:中国建筑工业出版社,2005
[35]淮南矿业(集团)有限责任公司顾北矿井.矿井污水处理工程初步设计[R].煤炭工业合肥设计研究院,2005
[36]严煦世,范瑾初.给水工程[M].北京:中国建筑工业出版社,1999
[37]于宗宝,刘少敏.建筑设备工程[M].北京:化学工业出版社,2005
[38]安徽太平矿业有限公司.安徽太平矿业有限公司前常铜铁矿采选改扩建工程环境影响报告书[R].合肥:安徽省煤炭设计院,2007