大业冲水库主坝渗流稳定分析及安全性评价  

Seepage stability analysis and safety evaluation of the main dam of Dayechong reservoir

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作  者:李旭 LI Xu(Hunan Branch of Dongguan Water Resources Survey and Design Institute Co.,Ltd.)

机构地区:[1]东莞市水利勘测设计院有限公司湖南分公司,湖南长沙410000

出  处:《大坝与安全》2024年第3期57-61,共5页Dam & Safety

摘  要:作为湖南省邵阳市洞口县重点中型水库,大业冲水库主坝的渗流现状和安全性对周边地区生态环境和人民群众生命财产安全具有重要影响。基于实际地质勘察结果,采用现场实测、理论分析与数值模拟相结合的方法,对不同工况下坝体渗流压力、浸润线和单宽渗流量等安全性指标进行分析。研究结果表明,大业冲水库主坝现有设计方案能够起到一定的防渗作用,但坝体渗流压力较大,浸润线较高,单宽渗流量也较大。受坝体渗流问题影响,坝体稳定性将逐步下降,需采取有效的加固方案和预防措施,并加强坝体安全管理和监测手段,以提高大业冲水库的安全性和稳定性。As a key medium-sized reservoir in Dongkou County,Shaoyang City,Hunan Province,the seepage status and safety of the main dam of Dayechong reservoir have a great impact on the ecological environment of surrounding areas and the safety of people's lives and property.Based on the actual geo⁃logical survey results,the safety indexes such as seepage pressure,saturation line and seepage flow per unit width of dam body under different working conditions are analyzed by combining field measure⁃ment,theoretical analysis and numerical simulation.The research results show that the existing design scheme of the main dam of Dayechong reservoir can play a certain role in seepage control,but the seep⁃age pressure of dam body is high,the saturation line is high,and the seepage flow per unit width is large.Due to the influence of dam seepage,the dam stability will gradually decrease,so effective reinforce⁃ment schemes and preventive measures should be taken,and the dam safety management and monitor⁃ing means should be strengthened to improve the safety and stability of Dayechong reservoir.

关 键 词:大业冲水库 渗流稳定分析 安全评价 复杂地质条件 数值模拟 

分 类 号:TV697[水利工程—水利水电工程]

 

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