The maximum depth of the pit is mainly related to the inflow angle, unit discharge and the perviousness of the dike etc. with the maximum impact from the Unit discharge.

透水桩坝的坝前最大冲刷坑深度主要与来流单宽流量、入流角、桩坝透水率等因素有关，其中单宽流量对冲刷坑深度的影响最大。