理論研究 2025年 第卷 第18期
DOI: 10.7672 / sgjs2025180013
地鐵下穿某建筑物的結構變形性能及振動影響評估
王炯文1,張偉2,孫永民1,王子月3,胡曉鋒1,韓路平1,李東1
作者簡介：
王炯文，工程師，E-mail:840628203@ qq. com作者單位：
1.陜西省建筑科學研究院有限公司，陜西西安 710082; 2.中聯西北工程設計研究院有限公司，陜西西安 710077; 3.西安工業大學，陜西西安 710021基金項目：
?陜西省省級國有資本經營預算科技創新專項資金項目（ ZXZJ-2024-015）；陜西省建筑科學研究院科研項目（ 2023-11-458,2024-1-503,2025-1-545）摘要：
某下穿新建地鐵既有建筑使用過程中多處開裂，為分析地鐵行駛時振動對該建筑的影響，進行現場踏勘和檢測，持續監測墻體裂縫寬度、傾斜變形和沉降變形，并在地鐵未運行和運行時分別測試動力特性與振動響應，根據國家規范進行該建筑安全性和抗震性鑒定以及振動對上部承重結構影響的安全性和使用性等級評定，綜合分析地鐵振動影響下建筑物結構變形性能和振動影響，并對后續加固處理提出建議。
English：
During the service life of an existing building that was crossed by a newly constructed subwayfrom below, multiple cracks occurred. In order to analyze the impact of the vibrations generated by thesubway during operation on this building, on-site surveys and inspections were carried out. The width ofthe cracks on the walls, the inclined deformation, and the settlement deformation were continuouslymonitored. The dynamic characteristics and vibration responses were respectively tested when the subwaywas not in operation and when it was in operation. In accordance with national codes and standards, thesafety and seismic performance of the building were appraised, and the safety and serviceability gradeevaluation of the impact of the vibrations on the upper load-bearing structure was conducted. Acomprehensive analysis was made of the structural deformation performance and vibration influence of thebuilding under the influence of the subwayvibrations, and suggestions were put forward for thesubsequent reinforcement treatment.