The effect of non-simultaneous excavation of closely-spaced twin tunnels on ground surface settlement
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
View: 394
This Paper With 9 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JCEMA-3-1_003
تاریخ نمایه سازی: 2 مهر 1398
Abstract:
Tunnel excavation on soil lands may leads to horizontal and vertical displacements around the tunnel. The displacements can reach the ground surface and cause damages to existing structures on the ground. Hence it is so important to estimate the ground settlement induced by excavation, particularly in urban environments. In this study, the effect of longitudinal distance between two tunnel faces on ground surface settlement is examined during the excavation of twin tunnels. Accordingly, the ground settlement is measured for the states where the distance between tunnel faces is 0D, 0.5D, 1D, 1.5D and 2D. The most important results suggest that creating a longitudinal distance (lagging) between the faces of twin tunnels during excavation operations causes changes in surface ground settlement. The maximum surface ground settlement along the width and length of tunnels decreases as the distance between two tunnel faces increases.
Keywords:
Authors
Sina lotfollahi
Department of Civil Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
Ehsan Khanahmadloo
Department of Civil Engineering, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
Vahid Hoseini Toodashki
Department of Civil Engineering, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :