CAJ | 학술논문

以泾阳滑带土为研究对象，采用HJ‐1型环剪仪对泾阳县的重塑黄土进行了单级环剪试验，研究了不同含水率，干密度，剪切速度下重塑黄土在较大剪切位移下的强度变化规律。研究表明：土体应力‐应变曲线呈软化现象；粘聚力和内摩擦角均随含水率的增加而降低；剪切速度越大的其达到峰值强度所需的剪切位移越小，粘聚力越大，但其对内摩擦角影响不显著；干密度与峰值强度呈正相关关系，对残余强度的影响不明显。脆性指数随含水率和剪切速率的增大而减小。
이경양활대토위연구대상，채용HJ‐1형배전의대경양현적중소황토진행료단급배전시험，연구료불동함수솔，간밀도，전절속도하중소황토재교대전절위이하적강도변화규률。연구표명：토체응력‐응변곡선정연화현상；점취력화내마찰각균수함수솔적증가이강저；전절속도월대적기체도봉치강도소수적전절위이월소，점취력월대，단기대내마찰각영향불현저；간밀도여봉치강도정정상관관계，대잔여강도적영향불명현。취성지수수함수솔화전절속솔적증대이감소。
With the loess in Jingyang landslide zone as the research object ,HJ‐1 type of ring shear apparatus is adopted to carry out the single grade ring shear tests of the remolded loess in Jingy‐ang county to study the strength varying laws of remolded loess with different moisture contents , dry density and shear speed under the larger shear displacement . T he research results indicate that the stress‐strain curves of soil body appear to be weakened ;the cohesion force and internal friction angles decrease with an increase in moisture contents .The larger the shear speed reaching the peak value is ,the smaller the required shear displacement is and the larger the internal cohe‐sion force is ,but its effect upon the internal friction angle is not obvious .The dry density and peak value strength are found to be in positive correlative relation without obvious effect upon re‐sidual strength .The brittle index decreases with an increase moisture content and shear speed .