【作者】 齐修东；

【导师】 刘文锴；

【作者基本信息】 河南理工大学 ， 地图制图学与地理信息工程， 2009， 硕士

【摘要】 对于《矿井地质规程》中的煤层稳定性评价指标,目前越来越多的专家学者提出了异议,仅凭可采性指数和变异系数并不能完整地反映煤层稳定性。怎样确定一种更合理的评价指标体系,是当前煤层稳定性评价研究的热点之一。另外,由于地质体、地质作用和地质过程的多样性、变异性和复杂性,使得煤层厚度信息存在大量的不确定性、不精确成分,它们既具有随机性,也有模糊性。因此通过优选定量评价指标,可以利用模糊综合评判进行评价。全文围绕利用多层次模糊综合评判对煤层厚度稳定性建立模型展开论述,主要开展了下列工作:首先论述了影响煤层厚度稳定性的因素及影响分析和煤厚稳定性在煤厚数字特征、煤层结构及地质构造等方面的具体体现,以此为基础建立了煤层厚度稳定性模糊综合评判指标体系和量化方法;然后详细介绍了有关模糊数学的基础知识,如模糊集合、模糊矩阵、隶属函数、权重、模糊映射与模糊变换,重点论述了模糊多层次综合评判的原理和建模过程;最后以焦作矿区为例,对影响煤层厚度稳定性的各因素指标进行了详细的计算和统计分析,利用模糊多层次综合评判实现了对演马庄矿、小马村矿和中马矿的煤层厚度稳定性的评价。评价结果与传统评价结果相符合,达到了预期的目的。本文最后对全文的主要工作做了总结,并对今后的研究方向进行了展望。更多还原

【Abstract】 For indicators of the coal seam stability used by“Mining Geological Regulation”, a growing number of experts and scholars have raised objection. Index of admissibility and coefficient of variation do not reflect the seam stability effectively, How to establish a more rational evaluation index system is one of the focuses research at present.Because geologic body, geological function and geological processes are diversity, variability and complexity, the information of coal seam is uncertainty and inaccurate. They are both random and fuzziness. Through the optimization quantitative evaluation index, we can evaluate useing fuzzy comprehensive evaluation.Around setting up the model of multi-level fuzzy comprehensive evaluation of the coal seam thickness stability, the full paper mainly carried out the following work: First, the factors impacted the stability of coal seam thickness; coal thick digital features, seam structure and geological structure are described. On the basis, the index system of coal seam thickness stability and quantitative approach are set up. Secondly the basis fuzzy match knowledge is described in detail, such as fuzzy sets, fuzzy matrix, membership function and weight, fuzzy composition and transformation. The principles and modeling process of fuzzy multi-level evaluation are focused. Finally, in Jiaozuo Mining Area, the factors indicators of coal seam thickness stability are carried out a detailed calculation and statistical analysis, and draw a conclusion about Yanmazhuang, Xiaomachun and Zhangmachun Mine useing multi-level fuzzy comprehensive evaluation. The results consistent with the traditional ones, achieved the expected goals.At last, the study contents and conclusion of the dissertation have been summarized, and the future research works have been forecasted.更多还原