CAJ | 학술논문

　　在完整岩样单轴压缩试验的基础上，采用自制注浆系统对破裂岩样进行了承压注浆加固和固结体的力学特性试验，并利用 KH-3000视频仪对注浆加固前后岩样的微观结构进行了观测和分析。研究结果表明：破裂岩样存在大量的贯穿裂隙，岩样破坏以张拉破坏为主；承压注浆后，破裂岩样的张拉和倾斜破裂面得到了不同程度的充填和固结，其强度与破裂岩样残余强度相比有较大的提高，但强度恢复系数不高；承压注浆能够促进破裂岩样的变形由脆性向延性转化，并使其侧向变形和轴向变形趋于协调；围压水平对浆液注浆量、岩样径向应变、注浆固结体强度及强度恢复系数有着很大影响，随着围压的增大，加固效果显著增强。
　　재완정암양단축압축시험적기출상，채용자제주장계통대파렬암양진행료승압주장가고화고결체적역학특성시험，병이용 KH-3000시빈의대주장가고전후암양적미관결구진행료관측화분석。연구결과표명：파렬암양존재대량적관천렬극，암양파배이장랍파배위주；승압주장후，파렬암양적장랍화경사파렬면득도료불동정도적충전화고결，기강도여파렬암양잔여강도상비유교대적제고，단강도회복계수불고；승압주장능구촉진파렬암양적변형유취성향연성전화，병사기측향변형화축향변형추우협조；위압수평대장액주장량、암양경향응변、주장고결체강도급강도회복계수유착흔대영향，수착위압적증대，가고효과현저증강。
In this paper, based on the uniaxial compression test of intact rock samples, the confined grouting reinforcement of cracked rock samples were carried out, and the mechanical properties of grouting reinforced samples were also tested by using self-made grouting system. Meanwhile, the mi-crostructures of cracked rock samples before and after grouting reinforcement were observed by KH-3000 Videomicroscopy. The results show that there are a lot of interpenetrated fissures in cracked samples, and the fracture mechanisms of samples are mainly the tensile failure. Compared with residual strength, the strength of grouting reinforced samples are increased at different degrees due to the filling and consolidation of fracture planes, but the strength recovery coefficient is not high. In addition, the confined grouting reinforcement can promote the transformation of cracked rock samples deformation from brittleness to ductility, and make the lateral and vertical deformation tend to coordination. Moreo-ver, the confining pressure has great effect on grouting amount, radial stain, strength of grouting rein-forced samples and strength recover coefficient, and the reinforcement effect can be improved signifi-cantly by increasing the confining pressure.