【摘要】 随着工程实践和理论研究的不断深入,北京地铁浅埋暗挖技术也在不断完善,由原来只适用于地面无建筑物的简单条件,拓展到穿越既有线、桥梁和建筑物等的复杂环境条件,并在施工工法、超前支护、施工降水、监控量测等方面取得了较大发展。结合北京地铁新线工程建设,介绍了浅埋暗挖这些新技术的应用。更多还原

【Abstract】 With a lot of projects and theoretical study,mining technique for shallow tunnels in Beijing subway construction has developed.For example,this method was only applicable for projects without any buildings on the ground before.And now it has been adopted in crossing the existing subway structure,bridges and buildings,and construction method,advancing support,dewatering and monitoring measurement have greatly developed.In light of the construction of new subway lines in Beijing,the author introduces the adoption of new techniques of mining method for shallow tunnels.The typical projects with mining method for shallow tunnels in complex conditions is discussed in this paper.更多还原