New Approach in Tunneling Construction Using the Forepooling Technique
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
View: 596
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ITC11_003
تاریخ نمایه سازی: 19 خرداد 1396
Abstract:
Austrian Tunneling is mainly applicable for big section tunnels. The tunnel is excavated step by step in this technique. Furthermore, forepoling, jet grouting and freezing are the techniques applied to construct falling tunnels; however, Austrian tunneling should not be used alone in medium section tunnels such as water conveyance tunnel and falling tunnels. As a result, the authors have introduced a new technique called Right-Left technique. In this technique, first forepoling, also known as tube umbrella, was used to strengthen tunnel. Then, having divided tunnel into two left and right sections, the right section was excavated exactly the size of half a steel frame and shotcrete technique was immediately used. The same technique was applied to the left section. Then, the face was advanced by drum cutter up to the area excavated by steel frame. The operation cycle was completed in this way. Relative stability was obtained by using this technique. In this paper, technical reasons for choosing this technique was presented. Furthermore, using Flac 3D, its convergence was compared with that of the Austrian
Keywords:
Authors
Masoud Ghaemi
phD Candidate in Rock Mechanic, Engineer Sepasad Group, Coach of Shams University
Alireza Khalili
Student of Geotechnic, Shams Higher Education Institute, Gonbad-e Kavus
Majid Matloobi
Engineer Sepasad Group
Ahmad Faramarzi
Engineer Sepasad Group
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 :