Tunnelling Induced ground settlement considering soil variability

  • سال انتشار: 1402
  • محل انتشار: مجله بین المللی معدن و مهندسی زمین، دوره: 57، شماره: 1
  • کد COI اختصاصی: JR_IJMGE-57-1_008
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 118
دانلود فایل این مقاله

نویسندگان

Gouri Krishna

AECOM India, Chennai.

V B Maji

Department of Civil Engineering, IIT Madras, Chennai.

چکیده

Ground settlement need to be predicted well so that necessary precautionary measures could be adopted. Ground deformation behavior due to tunnel construction in inhomogeneous soil has been studied in the past few decades by many researchers. When tunnel-induced ground, settlement is predicted by considering average soil properties, it is likely to miss the true settlement characteristics and failure mechanism due to the inherent heterogeneity of the ground. In this paper, spatial variability of the ground is considered in the numerical analysis to simulate the ground settlement. A numerical model is developed using the Finite-Difference based numerical code FLAC۳D to simulate tunnel construction with earth pressure balance (EPB) TBMs for a case study. Both ۲D and ۳D random fields are simulated in the numerical model. Results are systematically compared with some of the empirical and analytical methods for predicting ground settlement. Spatial distribution is found to have a significant effect on surface settlements and overall ground behavior.

کلیدواژه ها

Tunnelling, Random Field, Spatial Variation, Numerical model, FLAC۳D

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.