چکیده مقاله
Even though tunnels for highways and railways have been dominant for the last several decades, the tendency of underground space utilization is more diverse nowadays; for example, the underground structures for public use, caverns for oil and gas storage or for nuclear waste depository Nowadays, the usage of underground space for sustainable development is also more common As a Keynote speech, challenges on utilization of tunnelling and underground structures for sustainable development will be presented On the other hand, one of the major issues in urban tunnelling is the construction of new structures adjacent to existing above and/or below ground structures When excavating ground near to existing structures, the ground structure interaction effect has to be considered in the stability analysis as well as in the structural and/or ground behavior Five case studies are presented in this paper to provide an overview of urban tunnelling with the presence of above/below ground structures The first example is a case of a cut and cover tunnel above existing cable tunnels The following 3 case studies involve the construction of subway tunnels underneath existing structures: underneath an existing subway station; underneath an existing building; and underneath an existing bridge The last example is a case where cut and cover excavation has to be carried out near to an existing bridge foundation
کلیدواژهها
نویسندگان
In Mo Lee
School of Civil, Environ and Arch Eng , Korea University, Seoul, ۱۳۶ ۷۱۳, Korea
شیوه ارجاع
Lee, In Mo,1390,Utilization of Tunnelling and Underground Structures for Sustainable Development,09th Iranian Tunneling Conference,Tehran
ارائهشده در
مجموعه مقالات نهمین همایش ملی تونل10 آبان 1390 · تهران