Stability and time-delay effect of rainfall-induced landslide considering air entrapment
نویسندگان
چکیده
Abstract The pore air pressure of the soil layer has an obstructive effect on infiltration rainfall-induced landslide. Therefore, hydraulic hysteresis caused by entrapment in process slope also reduces anti-sliding force slope. A method considered closed gas particles’ pores is developed to study time-delay and stability during rainfall. Green–Ampt model used obtain explicit analytical solution considering entrapment. Moreover, relationship between safety factor, rainfall duration, depth wetting front under three conditions ( q rain = 10, 26, 51 mm/h) discussed. results show that causes a significant landslide, strongest condition heavy mm/h). air-entrapment will have supporting reduce normal stress. In infinite cases, violent greatly factor.
منابع مشابه
Rainfall-induced landslide susceptibility zonation of Puerto Rico
Landslides are a major geologic hazard with estimated tens of deaths and $1–2 billion in economic losses per year in the US alone. The island of Puerto Rico experiences one or two large events per year, often triggered in steeply sloped areas by prolonged and heavy rainfall. Identifying areas susceptible to landslides thus has great potential value for Puerto Rico and would allow better managem...
متن کاملPrediction of rainfall induced landslide movements by artificial neural networks
Many slow to moderate landslides are monitored in order to react on time and prevent loss of lives and reduce material damage. In most of such cases there are very limited data on the geometry, hydrogeological and material properties of the landslide. The aim of the paper is to test the ability of artificial neural networks (ANN) to make reliable short term predictions of rainfall induced lands...
متن کاملPredicting global landslide spatiotemporal distribution: Integrating landslide susceptibility zoning techniques and real-time satellite rainfall estimates
Landslides triggered by rainfall can possibly be foreseen in real time by jointly using rainfall intensity-duration thresholds and information related to land surface susceptibility. However, no system exists at either a national or a global scale to monitor or detect rainfall conditions that may trigger landslides due to the lack of sufficient ground-based observing network in many parts of th...
متن کاملAnalysis of Rainfall-Induced Landslide on Unsaturated Soil Slopes
This paper investigates rainfall-induced landslides on partially saturated soil slopes using the 2011 Umyeonsan landslides at the center of Seoul, Korea. An integrated analysis of rainfall-induced landslide was carried out through laboratory tests, field tests, and numerical analysis. The results of comprehensive investigations in the Umyeonsan region demonstrate that landslide activity is clos...
متن کاملDelay-Scheduled Controllers for Inter-Area Oscillations Considering Time Delays
Unlike the existing views that was introduced the existence of delay caused by the transmission of wide area measurement system data (WAMS) into the controllers input of the power oscilation damping (POD) by communication networks as a reason for poor performance of the POD controllers. This paper shows that the presence of time delay in the feedback loop may improve the performance of a POD co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geoscience Letters
سال: 2022
ISSN: ['2196-4092']
DOI: https://doi.org/10.1186/s40562-022-00216-z