泵站基坑开挖与支护施工技术研究

Research on Excavation and Support Construction Technology of Pump Station Foundation Pit

深基坑在泵站工程中较为常见,由于开挖风险高、难度大,需要强化施工技术并同步构建可靠的支护体系。结合具体案例探讨了泵站基坑开挖施工中的降排水处理技术与土方开挖技术,根据工程实况采用C25系统锚杆及框格梁+草皮护坡等支护技术,同时采取动态监测,以保障基坑安全。研究结果表明:采取分层开挖技术可有效抑制基坑周边土体环境失稳问题,在系统锚杆及框格梁+草皮护坡等支护技术的支持下,基坑可实现提高安全性与保护生态环境的目标,符合当前水利工程建设要求。

Deep foundation pits are common in pump station engineering.Due to the high excavation risk and difficulty,it is necessary to strengthen construction techniques and simultaneously build a reliable support system.Therefore,based on specific cases,this article discusses the drainage treatment technology and earthwork excavation technology in the excavation construction of pump station foundation pits.According to the actual engineering situation,C25 system anchor rods and frame beams+grass slope protection support technologies are applied,and dynamic monitoring is adopted to ensure the safety of the foundation pit.The research results indicate that adopting layered excavation technology can effectively suppress the instability of the soil environment around the foundation pit.With the support of system anchor rods,frame beams,and grass slope protection technologies,the foundation pit can achieve the goal of improving safety and protecting the ecological environment,which meets the requirements of current water conservancy engineering construction.