不同填筑方法对水库弃渣场边坡稳定性影响  

Influences of Different Filling Methods on Slope Stability of Reservoir Spoil Yard

作　　者：肖建宇 王寿武 何玉琼[1] 黄犀 XIAO Jianyu;WANG Shouwu;HE Yuqiong;HUANG Xi(Kunming University of Science and Technology,Kunming 650504,Yunnan,China;Liuzhou Railway Vocational Technical College,Liuzhou 545000,Guangxi,China)

机构地区：[1]昆明理工大学,云南昆明650504 [2]柳州铁道职业技术学院,广西柳州545000

出　　处：《水力发电》2021年第1期49-53,121,共6页Water Power

基　　金：国家自然科学基金青年项目(41807258)。

摘　　要：基于颗粒流离散元理论,以某水库弃渣场为例,利用颗粒流软件PFC^2D,设置3种不同颗粒粒径范围以及水平与竖向2种不同的分层填筑方式,分析其对弃渣场边坡稳定性的影响。结果表明,弃渣场土体颗粒的位移主要受颗粒粒径及分层填筑方式的影响,与颗粒数量关系不明显;竖向分层填筑方式比水平分层填筑土体颗粒产生的位移要小,对边坡稳定性更为有利。Taking a reservoir spoil yard as an example,based on particle flow discrete element theory,the particle flow software PFC 2D is used to study the influences of different filling methods on the slope stability of spoil yard by setting three different particle size ranges and two different layered filling methods of horizontal and vertical filling.The research results show that,(a)the displacement of the soil particles in the spoil yard is mainly affected by the particle size and the layered filling method,and the relationship with the number of particles is not obvious;and(b)the displacement of the bulk particles under vertical layered filling is smaller than that under horizontal layered filling,which is more beneficial to the stability of the slope.

关 键 词：弃渣场 边坡稳定性 离散元 颗粒分层 PFC^2D 

分 类 号：TU43[建筑科学—岩土工程]