چکیده مقاله
This paper investigates the pseudo static bearing capacity of a strip footing above a single void in Hoek Brown media The upper bound of finite element limit analysis FELA was implemented The effect of the geometrical parameter of void W/B= dimensionless width of the void with respect to footing’s width; and H/B= dimensionless height of void , the location of the void X/B= the dimensionless horizontal offset distance of void; and Y/B= the vertical dimensionless distance between the center of void and the ground , and horizontal earthquake coefficient kh on the bearing capacity of strip footing were studied Hoek Brown failure criterion was used to model the behavior of rock mass The reduction factor R was presented to illustrate the effect of a single void on the bearing capacity of strip footing The obtained results showed that the value of R decreases by approximately 35% when the value of kh increases from 0 to 0 2 The value of R was not affected noticeably by changing the value of W/B In addition, there is a threshold value for Y/B
کلیدواژهها
نویسندگان
Nader Hatef
Department of Civil Engineering, Shiraz University, Shiraz, Iran
Shabnam Shirazizadeh
Department of Civil Engineering, Shiraz University, Shiraz, Iran
Majid Beygi
Department of Civil Engineering, Shiraz University, Shiraz, Iran
شیوه ارجاع
Hataf, Nader and Shirazizadeh, Shabnam and Beygi, Majid,1402,Pseudo-static bearing capacity of strip footing above single void in Hoek-Brown media,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران