期刊论文

中文

武汉轻工大学学报

2095-7386

2023

42

06

77-86

10.3969/j.issn.2095-7386.2023.06.011

2021Y45:武汉轻工大学校立科研项目

本校为第一机构

为研究复杂地层盾构施工分次下穿多桥汇交区域对桥梁和周边地表变形的影响,以广州某地铁线路为依托工程,分析了左线、右线隧道分次穿越 F 匝道桥、细沥中桥、高架桥的累计沉降与差异沉降,进一步分析了高架桥周边地表沉降在空间上的分布规律.结果表明,地表沉降与 3 组桥桩沉降整体上较小,二类沉降在盾构通过期间整体上有增长趋势,桥桩沉降幅值最大值略大于周边地表沉降;3 组桥桩的最大累积沉降为 7.57 mm,最大差异沉降为 15.48 mm,均发生在高架桥桥桩处;3 组桥桩隆起最大值为 8.07 mm,周边地表沉降最大值为-5.09 mm,隆起最大值为 4.58 mm.累计沉降与差异沉降在工程规范与施工控制范围内,但差异沉...

In order to study the influence of multi-bridge intersection area under complex formation shield construction on the settlement and deformation of bridge and surrounding surface,this paper takes a sub-way line in Guangzhou as the support project.The cumulative settlement and differential settlement of the left line and right line tunnels crossing F-ramp bridge,Xili bridge and viaduct are investigated.The distri-bution of the ground settlement around the viaduct is further discussed.The results show that the ground settlement and the settlement of the three groups of bridge piles are not large....