山东大学学报 (工学版) ›› 2024, Vol. 54 ›› Issue (4): 95-105.doi: 10.6040/j.issn.1672-3961.0.2024.030
• 土木工程 • 上一篇
郭海坡1,文毅然2,杨为民2*,丁万涛2
GUO Haipo1, WEN Yiran2, YANG Weimin2*, DING Wantao2
摘要： 为了研究硬岩地层叠落隧道管片壁后注浆隔振处理措施,并为隔振材料研究提供基础。结合工程实际,将注浆隔振等效为注浆阻尼,采用有限元模拟分析法,研究隧道管片壁后注浆层不同阻尼比对地铁列车振动荷载的隔振效果影响。研究结果表明:当注浆层阻尼比从0.05增大到0.50,隧道结构上的最大竖向加速度变化率达到14.6%,周边岩土体的变化率达到了60.3%;由于加速度随阻尼比改变的变化率逐步降低,当阻尼比到达0.50时,此改变效果已经达到影响极限的80%,故可以将注浆层阻尼比控制在0.50以内,以达到最大的优化效率及经济效益。
中图分类号:
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