Rainfall infiltration model of Huangtupo landslide in Three Gorges Reservoir area

JIAN Wen-xing; XU iang; TONG Long-yun

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Rainfall infiltration model of Huangtupo landslide in Three Gorges Reservoir area

更新时间：2026-06-25

- Rainfall infiltration model of Huangtupo landslide in Three Gorges Reservoir area
- Vol. 34, Issue 12, (2013)
- 作者机构：
  
  1. 中国地质大学（武汉）教育部长江三峡库区地质灾害研究中心,武汉,430074
  2. 成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都,610059
  3. 四川省地质矿产勘查开发局成都水文地质工程地质队,成都,610072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU42
- Online First：19 December 2013，
  
  Published：2013
- 稿件说明：
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JIAN Wen-xing, XU iang, TONG Long-yun. Rainfall infiltration model of Huangtupo landslide in Three Gorges Reservoir area[J]. 2013, 34(12).
DOI：

JIAN Wen-xing, XU iang, TONG Long-yun. Rainfall infiltration model of Huangtupo landslide in Three Gorges Reservoir area[J]. 2013, 34(12). DOI：

摘要

传统的入渗模型未考虑坡角和降雨强度对滑坡入渗过程的影响，为了更好地描述黄土坡滑坡降雨入渗过程，在Green- Ampt入渗模型的基础上推导了考虑坡体倾角和小降雨强度影响的降雨入渗模型。为了获取改进的入渗模型参数，在黄土坡滑坡1#崩滑体上进行了双环渗透试验与降雨、土的含水率和基质吸力现场监测。结果表明，黄土坡滑坡1#崩滑体饱和渗透系数为4.81×10-5 m/s；降雨时体积含水率增加，降雨停止后体积含水率降低，深部表现出一定的滞后特性；基质吸力变化趋势与体积含水率相反，降雨使其减小，降雨停止后逐渐增大。通过双环渗透试验与现场监测，获取了黄土坡滑坡降雨入渗模型参数值。将入渗模型计算值与现场监测数据进行对比，该模型计算值与现场监测数据吻合，说明该降雨入渗模型可用于黄土坡滑坡降雨入渗分析。

Abstract

The influences of slope angle and rainfall intensity on infiltration process of landslides are not considered in the traditional rainfall infiltration model. In order to describe the rainfall infiltration process of Huangtupo landslide better

an improved infiltration model considering the influence of slope angle and light rainfall intensity is deduced based on the Green-Ampt infiltration model. In order to obtain the parameters of the improved infiltration model

double rings infiltration tests

rainfall monitoring

water content and matric suction monitoring are conducted on the No. 1 slide of Huangtupo landslide. The results show that the saturated hydraulic conductivity of the rock falls of No. 1 slide of Huangtupo landslide is about 4.81×10-5 m/s; water content increases under continuous rainfall and decreases under the cessation of rainfall

and the effect of hysteresis occurs in the deeper soil; on the contrary

the matric suction decreases under continuous rainfall and increases under the cessation of rainfall. The parameters of the improved infiltration model of Huangtupo landslide are get. The results calculated from the improved infiltration model are very close to the data obtained from monitoring. Therefore

the improved infiltration model can be used to rainfall infiltration analysis on Huangtupo landslide.

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