凡口铅锌矿深部倾斜中厚矿体采矿方法优化选择

针对凡口铅锌矿深部矿体复杂的开采技术条件，采用模糊综合评判方法进行采矿方法方案优化选择，实践表明模糊综合评判方法能克服传统的经验类比法的主观随意性，能准确、定量地分析评价问题，所选采矿方法方案合乎矿山生产实际，能较好地指导矿山生产。     

模式识别在采矿方法选择中的应用

采矿方法选择受多种因素影响，且因素影响带有不确定性等特点；而采矿方法的适应性实质上是指其适应范围与设计矿山开采条件的近似程度。本文提出了应用模式识别法选择适应的采矿方法的原理与工作程序。     

矿山采场测量工作浅析

采矿的各生产阶段,以及各种采矿方法不断对测量工作提出不同的要求和新的课题,从而使矿山测量的内容不断得到丰富。     

灰色理论与区间数多属性决策在采矿方案优选中的应用

采矿方法选择直接影响到企业的投资和经济效益,通过建立采矿方案综合评价指标体系,在属性权重未知的情况下,运用区间数多属性决策和灰色关联分析进行采矿方法优选.在评选过程中,通过引入相关系数,确定指标权重的区间数表示.然后引入区间数距离,提出了基于正、负理想方案的相对贴近度,这样使得决策更合理、更全面.综合指标权重向量和相对贴近度,可得采矿方案隶属于最优的程度.最后,运用一种新的基于正态分布的区间数排序方法对采矿方案进行排序.将此优选方法应用于某矿山,在实际生产中取得了良好的技术经济效益,通过理论和实践,验证了该方法的可行性和有效性.     

分段落矿阶段矿房采矿法在黄崖洞铁矿应用的可行性

针对黄崖洞铁矿现用采矿法-浅孔留矿法使用过程中存在的问题,提出了改变采矿方法的必要性：着重从安全、技术方面分析了分段落矿阶段矿房采矿法对本矿区矿床开采的适应性和可行性．同时也能满足提高矿山生产能力的要求：从作出的标准矿块单体设计方案中可以看出,与浅孔留矿法相比分段落矿阶段矿房采矿法有许多优越之处。     

金厂河铅锌矿高阶段宽条带采场稳定性分析

针对金厂河铅锌矿体产状稳定、矿体厚大、倾角缓、品位高、南北倾向短的特点,选择了高阶段大直径深孔侧向崩矿嗣后充填采矿法,同时阐述了该采矿方法的开采工艺.为确保生产过程中该采矿方法安全使用的可靠性及合理性,采用岩土FLAC3D软件对15 m宽的条带两步骤回采(一步骤回采矿柱;二步骤回采矿房)进行稳定性分析论证.模拟结果表明:采用隔一采一的方式,每步骤15 m宽的条带开挖后,采空区周边围岩出现塑性扰动区较小,整体处于稳定状态,验证了该采矿工艺安全、高效、成本低,具有一定的可行性和合理性,为矿山的安全高效生产提供了理论依据支撑.     

巴鲁巴铜矿缓薄矿体可采性研究

巴鲁巴铜矿是一座已开采42年的地下老矿山,由于矿山剩余资源大部分是缓倾斜薄矿体,导致开采难度非常大。从经济合理性、社会效益和技术可行性三方面对缓薄矿体开采的可行性进行了全面论证。在此基础上,借鉴国内缓薄矿体的各种开采手段,考虑赞比亚地下矿山现有技术水平,筛选出三种比较适合的采矿方法。然后从经济因素、资源利用率、劳动生产效率、安全环境及适用程度等方面,采用模糊层次分析法对上述各种采矿方法进行方案优选,最终确定了一种适合巴鲁巴矿缓薄矿体的采矿方法。生产实践表明,改进的爆力运搬空场法,不仅提高了出矿品位,减少了采切工程量,而且保障了矿山正常持续运行。     

改进层次分析法在采矿方法选择中的应用

采矿方法选择是一个多目标多层次的决策问题，利用最优传递矩阵对常规层次分析法进行改进，建立了改进层次结构模型，以定性分析与定量分析相结合进行采矿方法选择，并以具体采矿工程为例，详细地分析了改进层次分析法的应用。     

地下矿山开拓系统二维三维一体化设计方法及应用

三维矿业软件系统可实现采矿方法的精确设计、矿山资源储量的动态管理、生产计划的实时编制等功能。通过研究三维地质建模和三维巷道设计方法,以DIMINE三维矿业软件为平台,采用二维三维一体化设计方法实现了云南某铜矿山地下开拓系统设计。结果表明该方法有效集成了矿山地形、矿体、断层等地质数据,并在三维状态下进行开拓方案设计,最终将合理的方案输出,在方案形成、方案决策、生产指导等方面都克服了二维设计的不足,可为矿山决策和生产提供帮助。     

基于神经网络与专家系统结合的模型自动选择

目前的模型选择方法对用户的期望过高,要求用户对DSS模型库中的模型和所要解决的问题都要有深刻的理解,这就导致了模型选择 实用性较差。提出了一种基于专家系统和人工神经网络的模型自动选择理论和方法,这种理论和方法将模型选择分为模型类型选择和模型结构选择两部分,应用人工智能技术完成模型类型的自动选择,应用神经网络技术实现模型结构的自动选择。特别是在模型结构的自动选择中,人工神经网络方法的工作原理主要由两个阶段组成,即学习和选择阶段。在学习阶段,对每一模型类的模型组训练一个神经网络,使训练好的给定类模型的神经网络能够对用户给出一组数据的自动选择（判断）出适当的模型结构。而且,这个方法通过趋势外推型模型类的实验,证明是很有效的。     

Feasibility Study on Continuous Mining Method in Deep Position of Jinchuan Nickel Mine, China

Jinchuan nickel mine is the largest nickel mine in China. Cut-and-fill mining method with high density cementing materials is used in the mine. The original mining design divided the mining operation into two steps. The first step stopped the mining rooms and the second step stopped the pillars. Because the two-step method made big trouble for finally mining pillars and strongly limited the mining speed and production, it was successfully changed to a continuous cut-and-fill method without pillars. Howerver, the mining operation in the mine has been down to 800 m and the mining condition is getting worse and more complicated. Through systematical field investigations and 3-D FEM analysis, it is proved that the mining method without pillars is feasible for mining deeper orebodies in Jinchuan nickel mine.     

Height of fractured zone inside overlying strata under high-intensity mining in China

The height of fractured zone(HFZ) at the high-intensity longwall mining panel plays a vital role in the safety analysis of coal mining under bodies of water. This paper described definitions of the highintensity mining. The processes of overburden failure transfer(OFT) were analyzed, which were divided into the development stage and the termination stage. Through theoretical analysis, the limited suspension-distance and the limited overhanging distance were proposed to judge the damage of each stratum. Mechanical models of strata suspended integrity and overhanging stability were established.A theoretical method to predict the HFZ at the high-intensity longwall mining panel was put forward based on the processes of OFT. Taking a high-intensity longwall mining panel(No. 11915 panel) as an example, the theoretical method proposed, the engineering analogy and the empirical formulas in the Regulation were used to predict the HFZ. The results show that the theoretical result is consistent with the engineering analogies' result and empirical formulas' result. The rationality and reliability of the theoretical method proposed is verified.     

城市污水处理厂污泥量计算方法

从城市污水处理厂污泥的组成及处理工艺方面,归纳了城市污水处理厂污泥量的计算方法,统一参数的取值,使污泥量的计算结果与实际更相符.将污泥分为初沉污泥和剩余污泥,根据初沉污泥的产泥原理,给出了两种初沉污泥计算方法;着重对剩余污泥量计算进行探讨,将剩余污泥分为生物污泥和非生物污泥,从生物污泥的产泥机理、Y和Kd的取值及影响条件、Se的取值等方面对生物污泥量的计算公式做出了分析,对于非生物污泥量的3种计算方法,根据公式的意义指出3种计算公式的适用条件,明确了污泥量计算的概念.最后总结了城市污水处理厂设初沉池与不设初沉池时污泥量的各种计算方法.     

高产高效矿井开采模式及其选择

在明确高产高效矿井开采模式内涵与结构的基础上,根据工作面布置方式与生产线类型,将开采模式划分为７类,产对其进行了技术、经济、风险及有效性的综合分析。从不同开采模式综合生产能力、工作面数目、稳产时间、工艺方式、综合效能度、经济合理性及风险值等７个方面,较为系统、全面地进行了高产高效矿井开采模式的合理选择。东滩煤矿实例分析表明,所建立的高产高效矿井开采模式选择的模糊综合评判模型是有效的。     

Optimization model of unascertained measurement for underground mining method selection and its application

An optimization model of underground mining method selection was established on the basis of the unascertained measurement theory. Considering the geologic conditions, technology, economy and safety production, ten main factors influencing the selection of mining method were taken into account, and the comprehensive evaluation index system of mining method selection was constructed. The unascertained evaluation indices corresponding to the selected factors for the actual situation were solved both qualitatively and quantitatively. New measurement standards were constructed. Then, the unascertained measurement function of each evaluation index was established. The index weights of the factors were calculated by entropy theory, and credible degree recognition criteria were established according to the unascertained measurement theory. The results of mining method evaluation were obtained using the credible degree criteria, thus the best underground mining method was determined. Furthermore, this model was employed for the comprehensive evaluation and selection of the chosen standard mining methods in Xinli Gold Mine in Sanshandao of China. The results show that the relative superiority degrees of mining methods can be calculated using the unascertained measurement optimization model, so the optimal method can be easily determined. Meanwhile, the proposed method can take into account large amount of uncertain information in mining method selection, which can provide an effective way for selecting the optimal underground mining method.     

提高炮采工作面块碳率的爆破技术研究

针对永城煤电集团公司陈四楼煤矿三个炮采工作面的具体情况 ,对炮采工作面提高块碳率的微差爆破技术参数进行了理论分析和现场试验 ,确定了软煤体、片帮和破碎顶板条件下合理的爆破参数 .在安全、高效的前提下 ,块碳率提高了 6%～ 1 0 % ,取得了良好的经济效益     

基于SFN故障模式的最终事件故障概率分布确定方法

为研究空间故障网络（Space Fault Network,SFN）中故障模式的最终事件故障概率分布（Fault Probability Distribution of Target Event,TEFPD）,在不同情况下确定分布特征,提出不同情况下的TEFPD确定方法。研究对象为单元故障演化过程和全事件诱发+最终事件过程两种。根据原因事件和结果事件的关系,分析方法分为比较形式方法和继承形式方法。根据故障模式中事件存在性,故障概率分布处理方式分为最大值方法和平均值方法。考虑多因素影响,将事件故障概率分布引入到分析中,得到各种情况下的TEFPD。通过一个简单故障模式得到TEFPD,最终总结各种方式得到的TEFPD的特征显著程度。     

Comparative study of mining methods for reserves beneath end slope in flat surface mines with ultra-thick coal seams

The paper aims to identify a reasonable method for mining ultra-thick coal seams in an end-slope in surface mine, With a case study of Heidaigou surface coal mine(HSCM), the paper conducted a comparative research on three mining methods, namely Underground Mining Method(UMM), Highwall Mining System(HMS) and Local Steep Slope Mining Method(LSSMM). A model was firstly established to simulate the impact that UMM and HMS exert on monitoring points and surface deformation. The way that stripping and excavation amount varies with different slope angle, and the corresponding end slope stability were analyzed in the mode of LSSMM. Then a TOPSIS model was established by taking into account six indicators such as recovery ratio, technical complexity and adaptability, the impact on surface mining production, production safety and economic benefits. Finally, LSSMM was determined as the best mining method for mining ultra-thick coal seams in end slope in HSCM.     

渤海A油田聚合物驱动态规律分析及效果评价

分析了渤海A油田A7井组见效前期和见效明显期动态规律,并采用数值模拟法和广适水驱曲线法评价了增油效果。生产井组在见效前期产液量逐渐上升,含水率先缓慢升高后逐渐保持平稳,产油量保持平稳或略有上升。进入见效明显期后,由于陆续有新井投产,大部分小井组产液量和产油量先上升后逐渐下降,含水率变化分为3种类型。研究其动态特征可对深化认识海上油田聚合物驱开发规律并为及时有效地调整开发措施提供依据。     

基于人工神经网络的煤层地质条件开采工艺性评价

煤层地质条件开采工艺性评价是编制矿井工程项目建设可行性研究报告的首要任务,对它进行恰当的评价,一直是煤炭设计、生产、管理部门追求的目标．本文利用神经元网络处理非线性问题的优越性,建立了基于人工神经网络的煤层地质条件的开采工艺性评价,并在平顶山煤业集团六矿进行了应用,评价结果表明,本模型给出的结果较为符合矿井的实际情况,效果很好．