斜坡地基坡面放坡特性对高填方边坡的影响分析  

Analysis of the Influence of Slope Grading Characteristics of Slope Foundation on High Fill Slope

作　　者：王曙光[1] 左学贤 吁燃[1] WANG Shuguang;ZUO Xuexian;YU Ran(Guizhou Provincial Transportation Planning Survey and Design Institute, Guiyang 550001, China;School of Civil Engineering, Central South University, Changsha 410075, China)

机构地区：[1]贵州省交通规划勘察设计研究院,贵阳550001 [2]中南大学土木工程学院,长沙410075

出　　处：《交通科技》2021年第6期61-65,71,共6页Transportation Science & Technology

基　　金：贵州省科学技术厅-科技支撑计划重点项目(黔科合支撑[2018]2815);江西省交通运输厅重点工程科技项目(2019C0011)资助。

摘　　要：在斜坡地基上修筑高填方边坡容易产生一系列病害,严重时甚至会造成重大的生命财产损失。文中依托实际工程,利用数值模拟软件OptumG2分析了斜坡地基的地形因素对高填方边坡稳定性的影响。同时根据依托工程和另一类似工程数值模拟的结果,开展坡面放坡特性对高填方边坡的影响分析。结果表明,斜坡地基原坡体的地形地貌会导致高填方边坡稳定性降低及变形增大。而对原有山体进行放坡处理,则能有效提高斜坡地基高填方边坡的整体稳定性。The high fill slope built on the slope foundation is easy to produce a series of diseases,and even causes great loss of life or property when the disease is serious.Based on the actual project,the influence of terrain factors of slope foundation on high fill slope was analyzed by using numerical simulation software OptumG2.According to the results of the numerical simulation of the supporting project and another similar project,the influence of the slope grading characteristics on the high fill slope was analyzed.Results show that the original terrain of slope foundation may lead to the decrease of the stability of high fill slope and the increase of the deformation.The slope grading method could effectively improve the whole stability of slope foundation on high fill slope.

关 键 词：斜坡地基 高填方边坡 放坡特性 数值模拟 OptumG2 

分 类 号：U416.14[交通运输工程—道路与铁道工程]