Currently, when designing the soil nailing structure, we still adopt traditional Coulomb soil pressure theories or Rankine soil pressure theories, it causes that the calculation result of soil pressure has bigger error margin.

• 目前在土钉支护结构设计时,仍采用传统的库仑土压力理论或朗肯土压力理论,使得土压力计算结果与实测土压力有较大的差距。