石梁河水库大坝工程抗震安全评价分析  

Seismic safety evaluation and analysis of Shilianghe Reservoir Dam Project

作　　者：周春煦 谢罗峰[2] 张大海 ZHOU Chunxu;XIE Luofeng;ZHANG Dahai(Jiangsu Shipping College,Nantong 226010,China;Nanjing Hydraulic Research Institute,Nanjing 210000,China;Lianyungang Water Conservancy Bureau,Lianyungang 222006,China)

机构地区：[1]江苏航运职业技术学院,江苏南通226010 [2]南京水利科学研究院,江苏南京210000 [3]连云港市水利局,江苏连云港222006

出　　处：《水利建设与管理》2023年第3期6-14,26,共10页Water Conservancy Construction and Management

摘　　要：为分析评价石梁河水库大坝抗震安全性,基于塑性损伤力学本构模型及大坝整体损伤指标,通过构建重力坝抗震破坏评价模型,得出在8度地震荷载的作用下,主副坝背水坡、北泄洪闸闸室抗滑稳定安全系数、基底应力、不均匀系数符合相关规范,发生液化的可能性很低,安全性较好。南泄洪闸闸室基底应力、抗滑稳定安全系数均满足规范要求。北干渠涵洞、老副坝涵洞闸室以及孟曹埠涵洞抗滑稳定安全系数、基底应力、不均匀系数满足规范要求,最终评价工程抗震安全性为A级。In order to analyze and evaluate the seismic safety of Shilianghe Reservoir Dam,based on the constitutive model of plastic damage mechanics and the overall damage index of the dam,the seismic failure evaluation model of gravity dam is constructed.It is concluded that under the magnitude-8 earthquake load,the safety coefficient of anti-sliding stability,base stress and non-uniformity coefficient of the water slope at the back of the main and auxiliary dams and the sluice chamber at the north spillway gate meet the relevant specifications.The possibility of liquefaction is very low and the safety is good.The base stress of the sluice chamber and the safety coefficient of anti-sliding stability at the south spillway gate meet the specification requirements.The anti-sliding stability,base stress and non-uniformity coefficient of Beiganquculvert,sluice chamber of the old auxiliary dam and Mengcaobu culvert meet the specification requirements.The final evaluation of the seismic safety of the project is grade A.

关 键 词：石梁河水库大坝 抗震安全 评价分析 

分 类 号：TV312[水利工程—水工结构工程]