چکیده مقاله
In urban areas, the construction of shallow tunnels may be under consideration The presence of such tunnels may adversely affect the response of already constructed foundations, resulting in changes in machine operations This paper presents a two phase analysis for changes in the response of footings due to tunnelling in clayey soils In the first phase, a newly developed mathematical expression is used to determine the free field movement of the ground in the horizontal direction due to tunnelling In the second phase, the calculated free field lateral movements are imposed on the footing soil and the response of the footing is calculated under dynamic loads In the analysis of the footing, for a given dynamic load, the well known equilibrium equation is established and explicitly solved It will be shown that, rather than usual parameters affecting footing response such as loading details like frequency, amplitude, type of loading , footing geometry, footing embedment depth, characteristics of the underneath soil such as stiffness, damping behaviour, and geotechnical properties the location of the tunnel relative to the footing placement, tunnel geometry, and ground loss ratio can affect the footing behaviour The results will be shown graphically
کلیدواژهها
نویسندگان
Mahmoud Ghazavi
Assistant Professor, Civil Engineering Department, Isfahan University of Technology, Isfahan, Iran
شیوه ارجاع
Ghazavi, Mahmoud,1380,Changes in Response of Footings Loaded Dynamically in Horizontal Direction due to Tunneling in Soft Soils,05th Iranian Tunneling Conference,Tehran
ارائهشده در
مجموعه مقالات پنجمین کنفرانس تونل ایران21 آبان 1380 · تهران