灰土,三合土基础 锥形基础 b1≥150 b1≥150 B 1.b≥100mm,h1应取150mm的倍数 当B≥2m时,做成锥形,常用于混凝土基础 2.灰土基础:h1取150mm,300mm,450mm 其中:b1≥150m,h1≥150m 3.三合土基础:h1≥300m当 B≥2m时,做成锥形,常用于混凝土基础. 其中: b1≥150mm, h1 ≥150mm 灰土,三合土基础 锥形基础 1.b ≥100mm, h1应取150mm的倍数. 2.灰土基础 : h1取 150mm,300mm,450mm . 3.三合土基础 : h1 ≥300mm b≥100 h1≥150 h1≥150 b1≥150 b1≥150 B