摘要
以卡拉水电站为工程依托,采用3DEC离散元方法,建立了40、50、60 m和70 m等4种不同间距洞室群的3DEC计算模型,分析主厂房与主变洞在不同间距下的围岩变形、应力及塑性区分布特征。结果表明,主厂房与主变洞的间距为60 m时,相邻洞室变形不形成干扰,岩柱间存在弹性区,岩柱应力松弛相对较小。建议卡拉水电站主厂房与主变洞的间距设置为60 m。
Based on the project of Kala Hydropower Station,the 3DEC discrete element method is used to establish the 3DEC calculation models of four different spacing between the underground main powerhouse and main transformer chamber at 40,50,60 m and 70 m respectively,and the deformation,stress and plastic zone distribution characteristics of surrounding rock are analyzed at different spacing.The results show that,when the spacing between the main powerhouse and the main transformer chamber is 60 m,the deformation of adjacent caverns does not cause interference,there is elastic zone between the rock pillars,and the stress relaxation of the rock pillars is relatively smaller.Therefore,it is suggested that the spacing between the main powerhouse and the main transformer chamber of Kala Hydropower Station should be 60 m.
作者
彭浩洋
杨洋
方丹
陈斌
王应明
PENG Haoyang;YANG Yang;FANG Dan;CHEN Bin;WANG Yingming(Yalong River Hydropower Development Co.,Ltd.,Chengdu 610051,Sichuan,China;PowerChina Huadong Engineering Corporation Limited,Hangzhou 310014,Zhejiang,China)
出处
《水力发电》
CAS
2023年第10期51-55,71,共6页
Water Power
关键词
主厂房
主变洞
洞室群间距优化
3DEC
卡拉水电站
main powerhouse
main transformer chamber
optimization of cavern group spacing
3DEC
Kala Hydropower Station
作者简介
彭浩洋(1994-),男,四川眉山人,工程师,博士,主要从事水电工程施工建设技术管理及研究工作.
