1、212acaEh k221/2sin()sin()sin()sinsin()sin()sin()2sincoscos()2(sin()sin()sin)sin()sin()sin)2sincos1sin()2aqqqqkkkconkconqkhch()1.3nanattGEEG 表表6.6.5-1 土对挡土墙墙背的摩擦角土对挡土墙墙背的摩擦角 注注：k为墙背填土的内摩擦角。0ff1.6azaxGxExEz211/(45)222kktgtgtgtg 1ujnjsik isTdql0111001()cos1cos()sin()2()sin0nnmikiiiiiknjiijjjjjiknkiiiic
2、 L sswq btgTtgswq b 00()cos()sin0ik iiiiikkiiic lqbwtgqbw 00()cos()sin0ik iiiiikkiiic lq bwtgq bw00()cos1()sinikiiiiikkiiiclq bwtgq bw3.2 3.8 4.2 4.6 4.9KBmin 0.7 1.1 2.5 3.2 3.2 3.2 3.2 3.2 3.2Kf 1.2 2.5 3.8 5.0 6.0 7.0 7.7 8.44.0Kc 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6 2.6KBmin 18.7 7.3 3.2 2.2 1.6 1.3 0.9 0.8 0.6Kf 23.2 9.1 3.8 2.7 1.9 1.4 1.1 0.8 0.7
