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通过特殊压密试验探讨了煤矸石压密性与矸块破碎关系 .试验结果反映出煤矸石的压密性与一般土的压密性有实质差异 ,压密过程中较大比例的软岩矸块出现破碎 ,并伴随有密实程度和颗粒级配的明显变化 .根据试验所反映的煤矸石压密前后颗粒级配的变化及压密过程的压力 -密度关系特点 ,将煤矸石的压密过程分为破碎压密和固结压密两个阶段 ,认为破碎压密是固结压密的预压密过程 ,其重要作用在于有效改善了煤矸石所存在的颗粒级配缺从而改善其固结压密性 .
Through the special compaction test, the relationship between the compaction of coal gangue and the fragmentation of the gangue was discussed.The results showed that the compaction of coal gangue was different from the compaction of common soils, and a large proportion of soft rock According to the changes of the particle size distribution before and after the compaction of coal gangue reflected by the experiment and the pressure-density relationship of compaction process, the compaction process of coal gangue It is divided into two stages: crushing compaction and consolidation compaction. It is considered that crushing compaction is a pre-compaction process of consolidation compaction, and its important role is to effectively improve the consolidation of the coal gangue by the lack of particle size distribution Compaction.