摘要
为提高坝基防渗能力并确保其长期稳定,以某水利枢纽工程为例,研究了“上墙下幕”垂直防渗技术的关键工艺及防渗效果,并采用模拟和监测的手段分析了其应用效果。结果表明:蓄水期上下游水位平均上升速率最大值分别为0.095 m/d,0.030 m/d,均满足设计规范要求;静水压力模拟结果下坝基模型应力分布均小于规范要求的限值。指出该技术能实现渗透阻断与结构强化的协同增效,具有施工高效、长期稳定的优势。
In order to improve the anti-seepage capacity of dam foundation and ensure its long-term stability,taking a certain water conservancy hub project as an example,this paper researched the key process and anti-seepage effect of the vertical anti-seepage technology with“upper wall and lower curtain”,and analyzed its application effect by simulation and monitoring methods.The results show that the maximum average rising rates of water levels in the upstream and downstream during the storage period are 0.095 m/d and 0.030 m/d,respectively.All meet the requirements of design specifications;The stress distribution of dam foundation model under static water pressure simulation results is less than the limit value required by the specifications.It is pointed out that this technology can achieve the synergistic efficiency between anti-seepage blocking and structural strengthening,has the advantages of efficient construction and long-term stability.
作者
方勇
李晓飞
Fang Yong;Li Xiaofei(Yichang Shengtai Hydropower Industry Co.,Ltd.,Yichang Hubei 443000,China;Hubei Mingmiao Construction Engineering Co.,Ltd.,Yichang Hubei 443000,China)
出处
《山西建筑》
2026年第2期174-177,共4页
Shanxi Architecture
关键词
水利枢纽
“上墙下幕”垂直防渗体系
灌浆材料
防渗墙
water conservancy hub
vertical anti-seepage system with“upper wall and lower curtain"
grouting material
anti-seepage wall
