摘要
采用弹塑性力学有限元法,对江坪河水电站引水发电洞围岩稳定性进行计算分析,从位移、应力、点安全系数等角度进行分析研究。结果表明,开挖未支护条件下发电引水洞围岩稳定性良好;及时采取支护措施后,围岩的位移场和应力场得到了改善,稳定性进一步提高。通过综合分析,提出了可供设计和施工参考的支护建议。
In order to estimate the stability of surrounding rock of diversion and generating tunnel of the Jiangpinghe Power Station, the elastoplastic finite element method is used to analyze displacement, stress and point safety factors etc. The results show that the surrounding rock is stable under excavation without support , and when timely supported, the surrounding rock has more evenly dis- tributed stress and displacement field, the stability of surrounding rocks is improved. Through a comprehensive analysis, this paper is an attempt to offer some suggestions on chamber support and serves as a reference for design and construction.
出处
《中国农村水利水电》
北大核心
2009年第5期78-81,共4页
China Rural Water and Hydropower
关键词
水工隧洞
围岩
稳定性
应力
位移
hydraulic tunnel
rock
stability
stress
displacement
作者简介
张燕（1983-），女，硕士研究生。
