Progressive Failure Analysis of Slope Water Damage Based on Improved Green-Ampt Infiltration Model

In order to get the law of rainwater infiltration and progressive water damage, slope Tianshang bridge foundation in Yunnan Province China is taken as engineering basis. The site investigation damaged carried out. traditional Green-Ampt model improved by considering ponding effect dynamic flow on surface. Based variation characteristics wetting front obtained model, failure process with continuous simulated FLAC3D software. results show that damage mainly caused absorbing a lot short time, which has obvious time discontinuity shows multi-layer space. are more consistent practice. accumulation surface gradually weakens increase wet depth. develops from toe top shallow deep. intermittent provide surplus for treatment, gravel soil should be treated after small-scale occurs.