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高强度开采工作面尺寸大、推进速度快、煤层厚度大、埋深小,造成的岩层与地表移动变形破坏和环境影响比一般地质采矿条件下更为严重。目前对高强度开采的定义研究仅侧重于工作面尺寸、推进速度、采厚、产量和效率等采矿技术指标,没有考虑高强度开采引起的岩层与地表破坏等负外部性问题。基于绿色开采理念,在研究国内外高强度开采现状及特征的基础上,提出了以“采矿技术指标”+“负外部性”为框架的高强度开采科学定义,并给出了高强度开采定义的评价指标体系。该定义及指标体系更全面准确描述了高强度开采的科学内涵、采矿技术特征及负外部性影响,为准确评判高强度开采提供了科学依据。
High-intensity mining face large size, fast speed, thick coal seam, buried depth, resulting in deformation of the rock and surface deformation and damage and environmental impact than the general geological conditions more serious. At present, the definition research on high-intensity mining only focuses on the mining technical indexes such as face size, propulsion speed, mining thickness, yield and efficiency, without considering the negative externalities such as rock formation and surface damage caused by high-intensity mining. Based on the concept of green mining, on the basis of studying the current situation and characteristics of high-intensity mining at home and abroad, a scientific definition of high-intensity mining with “mining technology index” + “negative externalities” as the framework is proposed and the definition of high- High-intensity mining definition of the evaluation index system. The definition and index system more fully and accurately described the scientific connotation, mining technology characteristics and negative externalities of high-intensity mining and provided a scientific basis for accurate evaluation of high-intensity mining.