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作 者:姜同兴 薛文杰 王远 牛云朋 赵文哲 JIANG Tong-xing;XUE Wen-jie;WANG Yuan;NIU Yun-peng;ZHAO Wen-zhe(BCEG Civil Engineering Co.,Ltd.,100015,Beijing,China)
出 处:《建筑技术》2023年第15期1860-1863,共4页Architecture Technology
摘 要:星火站交通枢纽工程与地铁M3、R4线在同一基坑内同期施工,紧邻国铁朝阳站西站房。通过对枢纽地铁基坑进行一体化支护设计、围护结构施工全过程有限元分析确定支护设计方案,紧邻国铁朝阳站西站房部位采取旋挖钻切断锚索、高压旋喷桩止浆墙、止浆堵漏桩、既有结构临时支撑、锚索定位、盾构穿越区域设置玻璃纤维筋等措施,保证了基坑及周边环境安全。The transportation hub at Xinghuo station and the metro lines M3 and R4 were constructed in the same foundation pit,adjacent to the west building of Guotie Chaoyang station.The support design scheme was determined through the integrated support design of the hub foundation pit and finite element analysis of the entire enclosure construction process.Measures were taken adjacent to the west building of Guotie Chaoyang station to protect the safety of the foundation pit and surrounding environment,including the rotary drilling to cut anchor cables,grouting wall with highpressure rotary jet grouting piles,grout leak blocking piles,temporary supports of existing structures,positioning of anchor cables,and glass fiber reinforcement in shield tunnel crossing areas.
关 键 词:复杂深基坑 一体化支护设计 紧邻既有建筑物 交通枢纽工程
分 类 号:TU74[建筑科学—建筑技术科学]
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