CAJ | 학술논문

针对随机结构面的变质软岩边坡,依托实体工程,采用离散元通用程序UDEC进行数值分析,对比分析了在不同坡高、不同坡率条件下坡体的水平和垂直位移及安全系数的变化.研究结果表明,开挖坡率对边坡稳定性的影响较开挖高度的影响更大;当总开挖高度〈30m,单级边坡开挖高度的变化〈20%时,则不必考虑每级边坡开挖高度对边坡稳定性的影响.另外,还讨论了边坡开挖的经济性,为合理的边坡工程施工提供了理论依据.
침대수궤결구면적변질연암변파,의탁실체공정,채용리산원통용정서UDEC진행수치분석,대비분석료재불동파고、불동파솔조건하파체적수평화수직위이급안전계수적변화.연구결과표명,개알파솔대변파은정성적영향교개알고도적영향경대;당총개알고도〈30m,단급변파개알고도적변화〈20%시,칙불필고필매급변파개알고도대변파은정성적영향.령외,환토론료변파개알적경제성,위합리적변파공정시공제공료이론의거.
This article focuses a comparative analysis on the changes of horizontal displacement,vertical displacement and safety factor in different soft rock slope heights and ratios,and it makes the numerical analysis using the general program of discrete element method UDEC in random structure surface.The results show that the slope ratio has much more influence on the stability of slope than height.In addition the effect of excavation height to slope stability could not be considered when the total height30 m and the change of each grade excavation height20%.Furthermore the article provides theory basis for reasonable slope construction through discussing the economy of the slope excavation.