And by using the wedge accumulation model, a formula for calculating the angle of repose of symmetrical dispersed sediment is deduced; and then combining the calculation formula of dry density, the angle of repose of symmetrical dispersed sediment can be
And by using the wedge accumulation model, a formula for calculating the angle of repose of symmetrical dispersed sediment is deduced; and then combining the calculation formula of dry density, the angle of repose of symmetrical dispersed sediment can be
运用散体沙的楔入堆积模型，推导散体沙的水下休止角计算公式，并结合干容重计算公式，计算散体沙的水下休止角。