摘要
库伦型岩土压力公式中反映墙背倾斜情况的符号α常被解释或理解为墙背与水平面的夹角(即墙背倾角)。分析表明,这种解释或理解是错误的,将导致岩土压力公式对仰斜式挡墙(后仰边坡)不适用,造成仰斜式挡墙(后仰边坡)按俯斜式挡墙岩土荷载进行设计的后果。对这些公式中反映墙背倾斜情况的符号α的正确解释是"墙背与墙底水平投影的夹角"。
The retaining wall back obliquity symbol a in Coulomb＇ s rock and soil pressure formula is usually explained or comprehended as inclining angle between wall back and horizontal surface （namely angle of inclination of wall back）. The analysis shows that this interpretation or comprehension is incorrect and would result in inapplicable of Coulomb＇ s pressure formula to the backward inclined retaining wall and miscalculation of the pressure as the forward inclined wall. The correct interpretation of the symbol α of wall back obliquity in the formula is ＇ included angle between wall back and horizontal projection of wall bottom＇.
出处
《工程勘察》
2014年第4期21-25,共5页
Geotechnical Investigation & Surveying
关键词
库伦型岩土压力公式
仰斜式挡墙
俯斜式挡墙
墙背倾斜情况
墙背倾角
墙背与墙底
水平投影的夹角
Coulomb＇ s rock and soil pressure formula
backward inclined retaining wall
forward inclined wall
wall back obliquity
angle of inclination of wall back
intersection angle between wall back and wall bottom horizontal projection
