CAJ | 학술논문

为了进一步了解非直裂隙的破坏机理，以天然粗粒大理岩及含不同充填物的大理岩为研究对象，采用全自动化雕刻设备进行裂隙试件制作，然后分别对“/冶型裂隙试件和“S冶型裂隙试件进行单轴压缩试验.试验结果表明：1)在压缩试验中，“/冶型和“S冶型裂隙试件均发生剪切破坏，其破坏迹线基本一致；2)在同样外荷载作用下，含充填岩体破坏损伤度明显小于无充填岩体，充填物不仅影响前期强度还影响峰后残余强度的提高，其充填试件峰后应变增幅达到18.75%；3)不同的充填物对岩体抵抗开裂的能力不同，水泥浆的黏结力和强度比石膏好，故水泥浆具有良好的加固效果.试验探讨了非直裂隙(“S冶型)及充填材料对裂隙岩体破坏的影响，总结了充填材料作用下裂隙的扩展模式，为实际工程裂隙化岩体提供实验依据和参考.
위료진일보료해비직렬극적파배궤리，이천연조립대리암급함불동충전물적대리암위연구대상，채용전자동화조각설비진행렬극시건제작，연후분별대“/야형렬극시건화“S야형렬극시건진행단축압축시험.시험결과표명：1)재압축시험중，“/야형화“S야형렬극시건균발생전절파배，기파배적선기본일치；2)재동양외하재작용하，함충전암체파배손상도명현소우무충전암체，충전물불부영향전기강도환영향봉후잔여강도적제고，기충전시건봉후응변증폭체도18.75%；3)불동적충전물대암체저항개렬적능력불동，수니장적점결력화강도비석고호，고수니장구유량호적가고효과.시험탐토료비직렬극(“S야형)급충전재료대렬극암체파배적영향，총결료충전재료작용하렬극적확전모식，위실제공정렬극화암체제공실험의거화삼고.
In order to investigate the non-straight fracture failure mechanism further, an automatic engraving equipment was employed to prepare the crack test-pieces taking natural coarse marbles and the marbles containing fillers as the research objects, then an uniaxial compression text was conducted on the“/” type and “S” type crack test-pieces. The results show that 1) The shear failure is observed in both“/” type and “S” type test-pieces in the compression test, moreover, the failure traces are almost the same;2 ) The failure level of rock mass containing fillers is slighter than those containing no fillers under the same external loading. The early strength as well as the enhancement of the peak residual strength are affected by the fillers, and an 18. 75% increase ratio of post-peak strain is achieved in the rock mass containing fillers;3) The crack resistant ability of rock mass varies with different fillers. The cohesive force and strength of cement slurry are much better than the padding gypsum, which indicate that cement slurry has a nice reinforcement efficacy. This study investigated the influences of non-straight crack (“S”type) and filling material on the fractured rock destruction and summarized the crack extension mode with filling materials, which provided the experimental basis and practical reference for the practical engineering fissured rock mass.