Alteration of Ground Motion Acceleration at Ground Level Due To Tunnel Excavation

• 作者: Alireza Firoozfar Morteza Askari Ziarati Navid Alavi Nikoo Ghorbanian Nima Asghari
• 来源期刊: 海洋科学期刊(英文)
• 学科: 地球科学
• 关键词: Horse-Shoe Tunnel Earthquake Record PLAXIS SeismoSignal
• 年，卷（期）: 2020,（3）
• 页码范围: 116-130
• 页数: 15页
• 分类号: P31

摘要

Underground tunneling is one of the alternative solutions to diminish traffic congestion in large cities. One of the most important effects of tunneling is the displacement of the ground surface, the settlement around the tunnel, and the variation in earthquake acceleration. The performance and behavior of underground structures have been studied by several researchers, but the impact of tunnel excavation on earthquake records and its effects on structures above the ground level ha</span></span><span style="font-size:12px;font-family:Verdana;"><span style="font-size:12px;font-family:Verdana;"><span style="font-family:Verdana;font-size:12px;">ve</span></span></span><span style="font-size:12px;font-family:Verdana;"><span style="font-size:12px;font-family:Verdana;"><span style="font-family:Verdana;font-size:12px;"> received less attention. This research emphasizes changes of earthquake acceleration at the ground level, structural response and Fourier spectrum by excavating a horseshoe tunnel. Results show that digging a horseshoe tunnel will change the characteristics of the earthquake record at ground level.