摘要
某不稳定斜坡因强降雨局部发生崩塌变形,根据不稳定斜坡物质组成、结构特征,运用瑞典条分法对其稳定性进行计算。计算结果表明:不稳定斜坡在自重状态下处于基本稳定状态;在暴雨状态下处于不稳定~欠稳定状态;在地震状态下处于不稳定状态。在暴雨或连续强降雨、地震不利条件下该不稳定斜坡可能发生滑移变形,斜坡坡脚威胁人数众多,对其治理十分必要。
The stability of an unstable slope is calculated by Swedish slice method according to its material composition and structural characteristics.The results show that the unstable slope is basically stable under self weight,unstable to under stable under rainstorm and unstable under earthquake.Under the adverse conditions of rainstorm,continuous heavy rainfall and earthquake,the unstable slope may slip and deform,and the slope toe may threaten a large number of people,which is very necessary for its control.
作者
杨殷哲
陈寰
YANG Yin-zhe;CHEN Huan(The first Geological exploration Institute of Gansu and mineral Bureau,Tianshui 741000,China;The third Institute of Geology and mineral exploration,Gansu Procincial Bureau of Geology and minerals Exploration and Development,Lanzhou 730000,China)
出处
《世界有色金属》
2020年第12期188-189,共2页
World Nonferrous Metals
关键词
土质斜坡
变形影响因素
瑞典条分法
稳定性分析
soil slope
influencing factors of deformation
Swedish slice method
stability analysis
