| 雄安至北京大兴国际机场快线起步区地下段结构抗浮设防水位取值研究 |
| |
| 关键词:Xiongan New Area hydrogeological conditions numerical simulation analog prediction anti-floating fortification water level |
| 基金项目:中国地质调查局地质调查项目“雄安新区资源环境动态调查监测”(编号: DD20211292);“京津冀协同发展区暨雄安新区资源环境承载能力监测评价”(编号: DD20221727);“太行吕梁山区地质灾害精细调查与风险管控”(编号: DD20230438) |
|
| 摘要点击次数: 1190 |
| 全文下载次数: 607 |
| 摘要: |
| Study on the Values of Anti-floating Fortification Water Level for the Underground Structure in the Starting Area of Xiongan–Beijing Daxing International Airport Express Line |
| The anti-floating water level directly affects the safety and construction cost of an underground structure. Therefore, it is of great social significance and economic value to determine the anti-floating water level of underground structures scientifically and reasonably. Taking the underground structure of the Express Railway Line from Xiongan New Area to Beijing Daxing International Airport as the research object, this study systematically analyzed the hydrogeological conditions and the interannual dynamic variation of the groundwater level in the study area and used the numerical simulation method and analog forecasting method to determine a recommended value of the anti-floating water level elevation of the underground structure. The results showed that the depth of shallow groundwater at this site is generally 5 to 20 m and that the elevation of the groundwater level is generally ?10 to 1 m. In the past five years, the elevation of the shallow groundwater level at the site has generally been ?5 to ?10 m, and the burial depth has generally been 3 to 15 m. The groundwater level has been increasing each year, and the recovery rate is approximately 1 m/a. The numerical simulation method was used to predict a recommended value of the anti-floating water level of the underground structure during its service life. The results serve the anti-floating design of the Express Line from Xiongan New Area to the Beijing Daxing International Airport (Line R1) project site and provide a demonstration of anti-floating safety design of major engineering construction projects in Xiongan New Area. |
| HAN Bo,GAO Yihang,MA Zhen,GUO Xu,LIU Hongwei,ZHANG Xi,LI Haitao,DU Ya’nan,BAI Yaonan,LI Zhuang.2024.Study on the Values of Anti-floating Fortification Water Level for the Underground Structure in the Starting Area of Xiongan–Beijing Daxing International Airport Express Line[J].Acta Geoscientica Sinica,45(3):397-409. |
| 查看全文 查看/发表评论 下载PDF阅读器 |