Determination of mining method is very important for the development of a new mine.The comprehensive model using coupling gray correlation degree TOPSIS method is built based on the practice of Shanhou Gold Mine,which synthesized the benefits of TOPSIS and Gray theory.Based on 3mining methods for normal gently inclined thin vein,this paper selected 11economic and technical indexes to evaluate the relative closeness.The results indicate that the relative closeness for mining methods 1to 3using coupling gray correlation degree TOPSIS model are 37.65%,62.09%and 46.08%respectively.The second method(upwards drift stoping with backfill)is proved to be the best.Comparing with the results of TOPSIS and Gray correlation degree methods,the goodness of fit is good,which has verified the rationality and scientificity of the model.

The selection of mining method is a multi-factor and multi-objective decision-making process.Nowadays the engineering analogy method is widely used for it is simple and easy to operate.But the subjectivity of this method is strong,so the results often vary from person to person.Fuzzy mathematics is applied to the process of mining method optimization,which takes various factors into the mathematical form.The technical economic indicators of the mining scheme can be divided into qualitative and quantitative aspects.By introducing fuzzy set,membership function,etc.,to eliminate the subjective influence to some extent,mathematical method for quantitative description of mining method selection is used in fuzzy decision,and then the best mining method for Shanhou mining area is obtained.

山东平度大庄子金矿发育2种矿化类型:一是蚀变破碎带型矿体,二是多金属硫化物石英脉型矿体。多金属硫化物石英脉型金矿体成矿流体以岩浆水为主,兼有大气降水参与;而蚀变岩型矿体成矿流体为岩浆水与大气降水的混合。石英脉矿化带的流体包裹体均一温度高于蚀变岩型矿化带的均一温度,较深部位的流体包裹体均一温度高于浅部。大庄子金矿目前揭露的矿体处于成矿作用发生时深度较浅、温度相对较低的部位,预测下部仍有较好的工业矿体。

This paper introduce the principle of the electro-adsorption prospecting method and its application status.By using the electro-adsorption prospecting method,several anomalies were found in Mawan gold mining areas,high stackheterozygosity anomalies are mainly concentrated in south-central of the areas,all elements are in good agreement.In order to verify abnormal,three holes are laid in the work area,in which gold orebody are obvious,with maximum depth more than 1 000 m.Comparative study between the abnormal results and drilling results show that the anomalies of electro-adsorption prospecting method can reflect the deep buried ore bodies better than conventional geochemical methods,which can only reflect the outcropping ore body,indicating that the electrosorption method are more effective in searching for buried ore prospecting than conventional geochemical methods.

介绍了鑫汇公司大面积暴露顶板维护与安全预警技术。通过采用拱形顶板、分层回采、长锚索加局部锚杆金属网联合护顶、水平浅孔光面控制爆破落矿、电动铲运机出矿、分级尾砂非胶结充填、岩体声发射监测系统监控顶板、多方式多指标综合安全预警等综合配套工艺,有效解决了大面积暴露顶板回采过程中的安全技术难题,并通过工业性试验取得较为先进的技术经济指标。该成果的技术实用性强,相关工艺和参数可供工程技术人员参考。

Two type gold mineralization occur in Dazhuangzi gold deposit in Pingdu.One is the altered cataclatic rock type and the other quartz vein type.Ore fluid of quartz vein type is dominated by magmatic water and incorporated with a little meteroic water.Ore fluid of the altered cataclatic rock type is the mixture of magmatic water and meteroic water.Homogenization temperature of quartz vein type fluid inclusion is higher than that of the altered cataclatic rock type and the temperature at deeper parts of the altered cataclatic rock type ore-body is higher than that at shallower parts.According to lower homogenization temperature measured the ore bodies mined in the Dazhuangzi Gold deposit occur at shallower environment and It is potential below the mined ore bodies.

According to the characteristics of big coefficient of variation of orebody thickness in Xinhui gold mine,combine with the actual geological occurrence conditions of ore block,we choose level stratification sub-sequent filling mining method and stope mining,and exploit ore block.We obtain good results,and it has value of increase promotion.

低品位厚大矿体由于成本承受能力有限,无法使用高成本的采矿方法,特别是对于矿体和围岩稳固性较差的厚大低品位矿体,其采矿方法选择余地将大受制约.作者从矿山生产实际出发,应用模糊数学方法综合优选出分段中深孔连续采矿法用于开采该类矿体,有效避免了矿岩稳固性差和矿石品位低对开采的不利影响,其采矿方案优选方法和所用采矿工艺,对同类矿山具有较好的参考价值.

By using external pulse mining preparation,continuous stoping,short hole bringing-down,trackless out mine and tailings filling etc integrated technology,assisted by sand bags partition wall,roof monitoring etc matching process,continuous mining method achieves the safe,highly efficient,low loss,low cost mining of difficult-to-mine complex orebody.There is some significance for reference and direction on similar mine.

介绍了一种适用于倾斜复杂中厚矿体开采的采矿方法.该方法通过采用下盘脉外采准、连续采矿、水平浅孔光面落矿、自行无轨设备加脉外溜井联合出矿、人工隔墙分级尾砂充填和顶板动态监测等综合工艺,取得了采场生产能力大、采准工程量少、采矿贫化损失率低、采矿成本低的技术经济指标,对同类矿床的开采有借鉴和指导意义.