【作者】 张维世；

【导师】 才庆祥；

【作者基本信息】 中国矿业大学 ， 露天开采及边坡稳定， 2013， 博士

【摘要】 拉斗铲无运输倒堆工艺是集采、运、排为一体的开采工艺，由于没有运输环节，故与其他露天开采工艺相比，具有剥离成本低，劳动效率高的显著优点，适用于近水平或缓倾斜煤层，对剥离物的物理力学性质和气候条件等无严格要求。大型拉斗铲无运输倒堆工艺已经在黑岱沟露天煤矿成功应用，目前该矿开始由第一采区向第二采区转向过渡，而国内尚无拉斗铲倒堆工艺条件下露天煤矿采区转向经验，拉斗铲倒堆工艺受到作业空间和开采参数及开拓运输系统的严格限制，在此条件下的采区转向明显不同于单斗-卡车间断工艺，需要对相应的基本理论和共性关键技术进行深入研究。论文针对含拉斗铲倒堆工艺的综合开采工艺条件下露天煤矿采区转向遇到的关键技术问题，分别从该条件下露天煤矿采区转向的基本方式、采区转向期间物料流的移动规律、采区转向期间的采剥工程可靠性及各单一开采工艺之间的耦合规律等几个方面进行了深入研究，得出了以下结论：（1）基于露天煤矿采区转向的基本方式，提出了拉斗铲无运输倒堆工艺条件下采区转向的合理方式，分析其影响因素，并建立了相应的采区转向方式选择评价体系，揭示了拉斗铲无运输倒堆工艺采区转向演化规律。（2）研究了采区转向期间剥离物运移规律，通过分析转向前后内排土场空间的不均衡性，优化开拓运输系统并揭示其演化规律，尤其是煤的运输通道优化设置。根据内排空间的释放情况，揭示内排最终高度、物料流向和采剥工程的耦合关系，最大限度的利用露天矿内排土场，减少外排占地和缩短剥离物排弃运距。（3）为了保证正常的产量接续，利用可靠性理论定义采剥工程可靠性的概念，建立了设备调动原则和作业位置确定方法。（4）根据限制和非限制工艺的特点，研究采区转向期间各单一工艺之间相互匹配及相关参数的调整，实现了转向期间拉斗铲倒堆工艺倒堆台阶高度的动态调整。据统计，我国已经或将要开发的适合露天开采的大型、特大型煤矿区中煤层倾角绝大部分小于10°，属近水平或缓倾斜煤田，煤层结构简单；其中相当部分煤层倾角小于5°，为近水平煤田。因此，我国正在开发和规划开发的多个大型露天矿区都具备应用拉斗铲无运输倒堆工艺的基本条件。本论文的研究内容和主要成果，将为拉斗铲无运输倒堆工艺在我国露天煤矿的推广应用提供基本理论和相应的共性关键技术支撑。更多还原

【Abstract】 Dragline no transport process is inverted stack Central Purchasing, transport,ranked as one of the mining process, because there is no transport links, it iscompared with other open-pit mining techniques, with a low stripping costs, highlabor efficiency a significant advantage for nearly horizontal or gently inclined seams,peel the physical and mechanical properties of materials and climatic conditions, nostrict requirements. No transport large dragline down stack technology hassuccessfully applied Heidaigou surface mine, the mine is currently mining area fromthe first turn to the transition to the second mining area, but no domestic draglineexcavator casting process conditions Opencast mining area turned to experiencedragline excavator casting process strictly limited by the operating space and miningparameters and to develop the transport system in the mining area under this conditionsignificantly different from the single bucket steering-Truck intermittent process,the need for appropriate basic theory and common key technologies in-depth study.Under thesis dragline excavator casting process with a comprehensive miningprocess conditions Opencast mining area turned the key technical problemsencountered, the basic way Opencast mining area were turned from this condition,the movement law stream mining area during the shift several aspects of the projectmining area coupling law stripping the reliability of each single shift during themining process among other in-depth study reached the following conclusions:(1) based on the fundamental shift in the way the mining area proposed draglineno reasonable means of transport down the heap mining area turned under processconditions, analyzes the influencing factors, and to establish a mining areacorresponding shift mode selection evaluation system, reveals no transportationdragline mining area turned down heap process evolution.(2) study the migration law stripping material during mining area steering,steering through the analysis of the imbalance in the front and rear dump spacetransportation system optimization to develop and reveal its evolution, particularlycoal transport channel optimization settings. According to the release conditionswithin row space, revealing the final height of the row, coupling between the flow ofmaterials and stripping works to maximize the use of the open-pit dump, reducingefflux stripping material discharge area and shorten the transportation distanceabandoned. (3) In order to ensure the continuation of normal production, using the conceptof reliability theory to define stripping engineering reliability, established to mobilizeequipment and operating principles of location determination methods.(4) According to the process of limiting and non-limiting characteristics,research mining area turned to adjust to match each other during and between thesingle process parameters to achieve a period of dragline excavator casting processturned down heap of a dynamic step height adjustment.According to statistics, China’s development has been or will be suitable forlarge-scale open-pit mining, coal mining area in the large majority of seam dip is lessthan10°, is nearly horizontal or gently inclined coal, coal seam simple structure;which a considerable part of the coal seam dip is less than5°, nearly horizontal coal.Therefore, China is developing and planning the development of a number of largeopen-pit mine dragline applications all have the basic conditions withouttransportation pour heap process.Contents of this paper and the main results will dragline process provides freetransportation down heap basic theory and the corresponding common key technicalsupport in the promotion and application of surface mine.更多还原