允许不冲流速

附录F-1 渠道允许不冲流速土质允许不冲流速（m/s）轻壤土0.6-0.80中壤土0.65-0.85重壤土0.7-0.95粘土0.75-1注：表中所列允许不冲流速值为水力半径R=1.0m时的情况；当