- 土圧係数｛どあつ けいすう｝
- coefficient of active earth pressure: coefficient of active earth pressure主働土圧係数しゅどうどあつけいすう
- coefficient of earth pressure at rest: coefficient of earth pressure at rest静止土圧係数せいしどあつけいすう
- coefficient of passive earth pressure: coefficient of passive earth pressure受働土圧係数じゅどうどあつけいすう
