摘要
针对屏风石水库均质土坝存在的渗漏、溢洪道冲刷及涵管老化等安全隐患,提出系统化防渗安全加固对策。采用高压旋喷灌浆技术构建坝体防渗墙结合消力池建设、涵管裂缝修复及自动化监测系统布设,全面提升工程安全性。结果表明:加固后坝体单宽渗流量降至0.02~0.03 m^(3)/(d·m),渗透比降均低于允许值;抗滑稳定安全系数达1.57~3.11,满足规范要求。
A systematic anti-seepage and safety reinforcement strategy is proposed to address safety hazards such as leakage,spillway erosion,and aging of culvert pipes in the homogeneous earth dam of Pingfengshi Reservoir.The use of high-pressure rotary jet grouting technology to construct the dam anti-seepage wall,combined with the construction of the dissipation pool,the repair of culvert pipe cracks,and the deployment of an automated monitoring system,comprehensively improves the safety of the project.The results show that after reinforcement,the single width seepage flow of the dam body decreased to 0.02-0.03 m^(3)/(d•m),and the seepage ratio drop was lower than the allowable value.The anti-sliding stability safety factor reaches 1.57-3.11,meeting the regulatory requirements.
作者
邓艾武
DENG Aiwu(Longmen County Water Resources Comprehensive Affairs Center,Huizhou 516000,China)
出处
《云南水力发电》
2026年第1期186-190,共5页
Yunnan Water Power
关键词
均质土坝
防渗加固
高压旋喷桩
稳定分析
homogeneous earth dam
anti-seepage reinforcement
high pressure rotary jet grouting pile
stability analysis
