为了避免传统明挖法建造地铁车站带来的围挡占道、商铺拆迁、地下管线改迁等诸多负面问题，以广州 地铁3 号线东延段海傍站为工程背景，对矩形顶管暗挖地铁站建造技术进行研究。首先，提出了3 种建造车站的 顶管组合方案，并总结3 种方案的特点，结合车站工程实际给出优选方案；然后，对车站截面设计、顶管机选型、 管节设计和防水设计方案进行介绍；最后，通过理论计算、数值模拟、现场监测等手段验证组合顶管法施工的可 行性。结果表明：矩形顶管暗挖地铁站建造技术可以用于下穿管线的地铁车站建设，且安全性高、可实施性强。

To address the challenges posed by traditional open-cut methods in subway station construction, such as disruptions, shop demolitions, and relocation of underground pipelines, this study investigates the construction technology of jacking a rectangular tube for a subway station, focusing on the Haibang Station of the Guangzhou Metro Line 3 East extension project. Initially, three different combinations of pipe jacking schemes are proposed, each with unique characteristics tailored to the specific station engineering requirements. Selection among these schemes is based on practical considerations. Subsequently, the study details the section design, selection of jacking equipment, design of pipe sections, and implementation of waterproofing measures for the station. Finally, the feasibility of employing the combined pipe jacking method is validated through theoretical calculations and numerical simulations. The results demonstrate that the construction technology of jacking a rectangular tube for subway stations effectively addresses the challenges associated with underground pipeline integration. It ensures safety and feasibility in subway station construction. This approach offers a promising alternative to traditional methods, potentially minimizing disruptions and optimizing construction efficiency in urban environments.

U231

中国中铁股份有限公司科技研究开发计划课题(2020-重大-10)