长春工程学院学报（自然科学版）2025，Vol.26Issue(3)：17-24,8.DOI:10.3969/j.issn.1009-8984.2025.03.003
降雨入渗条件下浅埋软弱岩层引水隧洞地表沉降与控制措施
Surface Settlement and Control Measures of Shallow Buried Weak Rock Diversion Tunnel under Rainfall Infiltration Conditions
摘要
Abstract
In order to study the surface settlement and control technology of shallow buried tunnels passing through waterrich and weak rock layers under rainfall infiltration conditions,relying on Shenzhen Tiegang-Shiyan Reservoir Water Quality Assurance Project,based on the Peck formula,the characteristics and laws of surface settlement under different working conditions were analyzed using a combination of numerical and on-site measurement.Different support effects were compared,and the best surface settlement control measures were proposed.The results showed that during tunnel construction in the rainy season,the arch crown settlement reached its maximum value(14.50 mm)at the end of rainfall(t=7 d),and began to de-crease after rainfall(t=9 d).In the early stage of rainfall(t=1 d),the plastic zone of the tunnel surround-ing rock mainly appears at the arch position.As the rainfall time increases,the plastic zone gradually ex-pands towards the surface.After the rainfall ends(t=9 d),the distribution range of the plastic zone gradually de-creases.When shallow buried tunnels pass through water rich weak rocks,the use of surface sleeve valve pipe grou-ting can effectively control surface settlement,but combined with high-pressure horizontal rotary jet grouting tech-nology,the settlement effect is better,reducing the settlement value by 22.8%.关键词
降雨入渗/浅埋软弱岩层/引水隧洞/地表沉降/控制措施/现场监测Key words
rainfall infiltration/shallow burial of weak rock formations/headrace tunnels/surface settle-ment/control measures/on-site monitoring分类
建筑与水利引用本文复制引用
耿弈,金冰燕,康兰方,张波,李文杰..降雨入渗条件下浅埋软弱岩层引水隧洞地表沉降与控制措施[J].长春工程学院学报（自然科学版）,2025,26(3):17-24,8.基金项目
国家自然科学基金项目(U1604135)中交二公局第四工程有限公司重点科技研发项目(2023-4-10)河南省科技厅产学研合作项目(2015HNCXY011) （U1604135）
