岩石隧道开挖施工对上覆框架结构力学性能影响规律的研究  

Research on the Influence of Rock Tunnel Excavation Construction on the Mechanical Properties of the Overlying Frame Structure

作　　者：王艳[1] 靳晓光[2] 季璇 WANG Yan;JIN Xiaoguang;JI Xuan(School of Architecture and Construction,Jiangsu Vocational Institute of Architectural Technology,Xuzhou 221116,China;School of Civil Engineering,Chongqing University,Chongqing 400044,China;School of Architectural Engineering,Jinling Institute of Technology,Nanjing 211169,China)

机构地区：[1]江苏建筑职业技术学院建筑建造学院,江苏徐州221116 [2]重庆大学土木学院,重庆400044 [3]金陵科技学院建筑工程学院,江苏南京211169

出　　处：《连云港职业技术学院学报》2023年第3期1-6,共6页Journal of Lianyungang Technical College

摘　　要：为了研究隧道开挖对建筑结构力学性能的影响,以隧道下穿某9层框架结构为例,采用ANSYS软件建立有限元模型,分析上覆框架结构的内力、变形及地表沉降,并与实测数据对比。结果表明:结构变形最大的部位在隧洞的正上方;隧道开挖对梁轴力的影响较大;实测地表沉降曲线和数值模拟地表沉降曲线的变化趋势基本相同,采用数值模拟方法预测隧道开挖对建筑结构力学性能的影响是可行的。In order to study the impact of tunnel excavation on the mechanical properties of building structures,a finite element model was established using ANSYS software,taking a 9-story frame structure underneath the tunnel as an example.The internal force,deformation,and surface settlement of the overlying frame structure were analyzed and compared with measured data.The results indicate that the maximum structural deformation occurs directly above the tunnel;Tunnel excavation has a significant impact on the axial force of the beam;The variation trend of the measured surface settlement curve and the numerical simulation of surface settlement curve is basically the same.It is feasible to predict the impact of tunnel excavation on the mechanical properties of building structures with numerical simulation.

关 键 词：岩石隧道 上覆建筑物 数值模拟 结构力学 

分 类 号：U455[建筑科学—桥梁与隧道工程]