CAJ | 학술논문

近年来,由于黄土高原地区经济快速发展,受地形限制的影响,很多工程建设无法避开已有的黄土滑坡,使得在边坡开挖过程中产生各种变形破坏迹象,危害十分严重。笔者以富县洛阳乡某挖方边坡为例。根据其地质环境、滑坡概况以及人类活动等情况,利用工程地质分析法定性阐述了在边坡开挖过程中的破坏机理,并将整个变形破坏过程分为3个阶段：坡脚卸载差异变形阶段、压致拉裂面贯通阶段、“V”型裂缝稳定阶段；其次,结合有限元数值模拟量化描述了边坡的变形破坏特征；最后,基于边坡应力分布情况,推算出蠕滑段发育的最大深度距剪出口约93m,同实际情况较为吻合。
근년래,유우황토고원지구경제쾌속발전,수지형한제적영향,흔다공정건설무법피개이유적황토활파,사득재변파개알과정중산생각충변형파배적상,위해십분엄중。필자이부현락양향모알방변파위례。근거기지질배경、활파개황이급인류활동등정황,이용공정지질분석법정성천술료재변파개알과정중적파배궤리,병장정개변형파배과정분위3개계단：파각사재차이변형계단、압치랍렬면관통계단、“V”형렬봉은정계단；기차,결합유한원수치모의양화묘술료변파적변형파배특정；최후,기우변파응력분포정황,추산출연활단발육적최대심도거전출구약93m,동실제정황교위문합。
Recently,with the rapid economic development in the loess plateau,many engineering construction have to excavate in loess slope or landslide for side construction under the influence of the terrain,which has caused all kinds of deformation and failure in the process of slope exca-vation,and then bring serious harm. In this paper,we take a cut slope in Luoyang village,Fux-ian as an example. Firstly,the slope failure mechanism in the process of slope excavation has been discussed by using qualitative analysis of engineering geology,and the deformation and fail-ure process has been divided into three stages:the stage of differential deformation due to the toe of slope unloading,the stage of pressure cracking surface transfixion,and the stage of “V”type fracture stability. Secondly,the slope deformation and destruction characteristics have been de-scribed through combining with the finite element numerical simulation quantitatively. Finally, the maximum depth of creep portion has been calculated,which is about 93m from the shear o-pening and is consistent with the actual situation.