CAJ | 학술논문

红层泥岩填料在西南地区的工程建设中使用较为广泛，其压实后颗粒的强度，渗透性与颗粒的破碎和实际分布情况息息相关。通过配置不同含水率，不同粗细比的泥岩试样，从红层泥岩击实后颗粒级配，破碎率等方面对颗粒破碎特征进行了对比研究。结果表明，含水率的增高以及粗颗粒含量的增多均会加剧岩土体的破碎效应。击实后试样的级配更加连续，且在含水率达到10％以后，水对颗粒级配的调节以及对粗颗粒破碎的影响较小。当P5初始值一定时，颗粒的破碎率随着含水率的增大而增大；当含水率一定时，破碎率与P5值呈正比例关系。破碎率在评价水作用影响下的破碎与实际较为符合，但用于评价其他因素对破碎的影响具有一定局限性。
홍층니암전료재서남지구적공정건설중사용교위엄범，기압실후과립적강도，삼투성여과립적파쇄화실제분포정황식식상관。통과배치불동함수솔，불동조세비적니암시양，종홍층니암격실후과립급배，파쇄솔등방면대과립파쇄특정진행료대비연구。결과표명，함수솔적증고이급조과립함량적증다균회가극암토체적파쇄효응。격실후시양적급배경가련속，차재함수솔체도10％이후，수대과립급배적조절이급대조과립파쇄적영향교소。당P5초시치일정시，과립적파쇄솔수착함수솔적증대이증대；당함수솔일정시，파쇄솔여P5치정정비례관계。파쇄솔재평개수작용영향하적파쇄여실제교위부합，단용우평개기타인소대파쇄적영향구유일정국한성。
Red rock filling is widely used in construction projects in the southwestern region .It’ s strength of the particles, permeability after compaction are closely related with crushing and the actual distribution of the parti-cles.Based on compaction test of different gradation and different moisture contents of mudstone , the relationship among changes of particle size and the feature of particle breakage are studied .The results show that the increasing of moisture content and coarse particle is likely to conduce to exacerbating the crush of the mudstone .The sample ’ s gradation is more perfect after the compaction .What’s more, the water has little impact on the gradation and parti-cle breakage when it approaches to 10 percent.When P5 is invariant, the breakage increase with the increase of moisture content;when the moisture content is invariant , there is a direct proportion relationship between the in-crease of breakage and P5.It’s better to use broken rate in evaluating the actual impact of the action of water , but as to other factors , there are certain limitations .