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我所一室断裂机理课题组于今年五月完成了“二滩水电站地下厂房及连接隧道的三维边界元法分析”工作。二滩水电站地下厂房包括三个大的地下洞室(主厂房、主变室和调压室)和十九个连接隧道。厂房跨度大,最大开挖高度达63米,整个结构相当复杂,是个典型的三维应力分析问题。同时,该厂房又处在高地应力区,最大主应力达200公斤/厘米~2,因此,十分必要进行三维应力状态的计算分析。
In May this year, our research group on the mechanism of rupture of a chamber completed the “Three-dimensional Boundary Element Analysis of Underground Powerhouse and Connecting Tunnel of Ertan Hydropower Station”. Ertan Hydropower Station underground powerhouse includes three large underground caverns (main plant, transformer room and surge chamber) and 19 connecting tunnels. Large plant span, the maximum excavation height of 63 meters, the entire structure is quite complex, is a typical three-dimensional stress analysis. At the same time, the plant is located in the high stress area, the maximum principal stress of 200 kg / cm ~ 2, therefore, it is necessary to calculate the three-dimensional state of stress analysis.