涨壳式注浆锚杆在隧道单层衬砌支护工程的应用分析  

The application analysis of swelling grouting bolts in single shell lining tunnels

作　　者：郭永建 张闻博 GUO Yongjian;ZHANG Wenbo(Qingdao Conson Second Jiaozhou Bay Subsea Tunnel Co.,Ltd.,Shandong Qingdao 266071 China;China Railway Southwest Research Institute Co.,Ltd.,Sichuan Chengdu 611731 China)

机构地区：[1]青岛国信胶州湾第二海底隧道有限公司,山东青岛266071 [2]中铁西南科学研究院有限公司,四川成都611731

出　　处：《山东交通科技》2024年第5期1-4,17,共5页

基　　金：国家重点研发计划,项目名称:海底隧道建造与韧性增强关键技术,项目编号:2021YFB2600900。

摘　　要：对涨壳式注浆锚杆在硬岩地层的适应性进行分析,并采用数值模拟和现场试验的方法,结合隧道斜井单层衬砌支护方案进行数值模拟和现场监测分析;数值计算结果表明,左侧节理裂隙发育区的锚杆轴力值较大;现场监测结果验证了数值计算的准确性,Ⅲ级围岩宜以锚杆轴力监测为主,位移监测为辅。This paper researched the adaptability of swelling grouting bolts in hard rockmass,numerical simulation and field testing method were used to the single shell lining support tunnel shaft.The numerical calculation results indicated that the largest bolt axial force at the joint fissures area of tunnel left.The field monitoring results confirmed the accuracy of the numerical calculations.In class III surrounding rock,bolt axial was the main monitoring method,displacement monitoring as a supplement.

关 键 词：涨壳式注浆锚杆 受力分析 隧道 预应力 轴力 

分 类 号：U455[建筑科学—桥梁与隧道工程]