CAJ | 학술논문

岩石结构面力学特性研究一直是岩石力学的热点问题，为研究注浆前后岩石结构面力学特性，利用ANSYS建立了结构面剪切计算模型并导入FLAC3D进行计算，采用等效参数模拟方法对比分析了3种结构面类型在台阶高宽比为0.5和0.3下结构面的力学特性.结果表明：台阶宽高比不同台阶所表现的破坏规律不同，高宽比大时为剪断破坏，高宽比小时为压切破坏；注浆对提高结构面抗剪强度作用明显.最后，根据试验结果提出了非控制性爬坡角概念.
암석결구면역학특성연구일직시암석역학적열점문제，위연구주장전후암석결구면역학특성，이용ANSYS건립료결구면전절계산모형병도입FLAC3D진행계산，채용등효삼수모의방법대비분석료3충결구면류형재태계고관비위0.5화0.3하결구면적역학특성.결과표명：태계관고비불동태계소표현적파배규률불동，고관비대시위전단파배，고관비소시위압절파배；주장대제고결구면항전강도작용명현.최후，근거시험결과제출료비공제성파파각개념.
The researches on the mechanical property of rock structure plane has always been a hot topic .In order to study the mechanical property of rock mass at pre-and-post grouting, a FLAC3D calculation model is constructed based on ANSYS to perform calculation. The mechanical properties of three structural planes and two aspect ratio types are analyzed with aspect ratio are 0.5 and 0.3.The results show that the different step-shaped aspect ratios have the different failure laws, which exhibited shear failure with large aspect ratios and pressure-shear failure with small aspect ratios, and the shearing strength increased markedly after grouting . The concept of uncontrolled climbing angle is put forward according to the results .