搜索结果: 1-15 共查到“地球科学总论 Debris flow”相关记录18条 . 查询时间(0.064 秒)
Critical conditions of bed sediment entrainment due to debris flow
Critical conditions bed sediment entrainment debris flow
2009/12/14
The present study describes entrainment characteristics of bed material into debris flow, based on flume tests, numerical and dimensional analyses. Flume tests are conducted to investigate influences ...
Relations between rainfall and triggering of debris-flow:case study of Cancia(Dolomites,Northeastern Italy)
rainfall triggering debris-flow ase study Cancia
2009/12/11
Debris-flows occurring in the area of Cancia (Dolomites, Northeastern Italy) in recent years have exposed the population to serious risk. In response to the recurring hazard, an alarm and monitoring s...
Observations and modelling of soil slip-debris flow initiation processes in pyroclastic deposits:the Sarno 1998 event
Observations modelling soil slip-debris flow initiation processes pyroclastic deposits
2009/12/11
Pyroclastic soils mantling a wide area of the Campanian Apennines are subjected to recurrent instability phenomena. This study analyses the 5 and 6 May 1998 event which affected the Pizzo d’Alvano (Ca...
Debris-flow susceptibility assessment through cellular automata modeling: an example from 15–16 December 1999 disaster at Cervinara and San Martino Valle Caudina (Campania, southern Italy)
Debris-flow susceptibility assessment cellular automata modeling Cervinara and San Martino Valle Caudina
2009/12/10
On 15–16 December 1999, heavy rainfall severely stroke Campania region (southern Italy), triggering numerous debris flows on the slopes of the San Martino Valle Caudina-Cervinara area. Soil slips orig...
Large scale debris-flow hazard assessment: a geotechnical approach and GIS modelling
Large scale debris-flow hazard assessment a geotechnical approach GIS modelling
2009/12/10
A deterministic distributed model has been developed for large-scale debris-flow hazard analysis in the basin of River Vezza (Tuscany Region – Italy). This area (51.6 km 2 ) was affected by over 250 l...
Debris flow characteristics and relationships in the Central Spanish Pyrenees
Debris flow characteristics and relationships the Central Spanish Pyrenees
2009/12/10
Unconfined debris flows (i.e. not in incised channels) are one of the most active geomorphic processes in mountainous areas. Since they can threaten settlements and infrastructure, statistical and phy...
Influence of check dams on debris-flow run-out intensity
Influence check dams debris-flow run-out intensity
2010/1/4
Debris flows are very dangerous phenomena claiming thousands of lives and millions of Euros each year over the world. Disaster mitigation includes non-structural (hazard mapping, insurance policies), ...
The use of airborne LiDAR data for the analysis of debris flow events in Switzerland
airborne LiDAR data flow events Switzerland
2009/12/31
A methodology of magnitude estimates for debris flow events is described using airborne LiDAR data. Light Detection And Ranging (LiDAR) is a widely used technology to generate digital elevation inform...
Assessing potential debris flow runout: a comparison of two simulation models
potential debris flow runout two simulation models
2009/12/30
In this frame, the two codes RASH3D and FLO2D are used to numerically analyse the propagation of potential debris flows affecting two study sites in Southern Italy.
For these two study sites, a lack ...
Spatial variability and potential impacts of climate change on flood and debris flow hazard zone mapping and implications for risk management
Spatial variability and potential impacts climate change flood and debris flow hazard zone mapping and implications risk management
2009/12/30
The main goals of this study were to identify the alpine torrent catchments that are sensitive to climatic changes and to assess the robustness of the methods for the elaboration of flood and debris f...
GIS-based two-dimensional numerical simulation of rainfall-induced debris flow
GIS-based two-dimensional numerical simulation rainfall-induced debris flow
2009/12/29
This paper aims to present a useful numerical method to simulate the propagation and deposition of debris flow across the three dimensional complex terrain. A depth-averaged two-dimensional numerical ...
Towards an empirical vulnerability function for use in debris flow risk assessment
empirical vulnerability function debris flow risk assessment
2009/12/30
In quantitative risk assessment, risk is expressed as a function of the hazard, the elements at risk and the vulnerability. From a natural sciences perspective, vulnerability is defined as the expecte...
Influence of rheology on debris-flow simulation
Influence of rheology debris-flow simulation
2009/12/29
Systems of partial differential equations that include the momentum and the mass conservation equations are commonly used for the simulation of debris flow initiation, propagation and deposition both ...
A debris-flow monitoring devices and methods bibliography
debris-flow monitoring devices methods bibliography
2009/12/29
Debris-flow monitoring has two functions, warning and modeling. The warning function includes the following parameters: occurrence prediction and detection, proximity sensing, and discharge-estimation...
Debris flow run off simulation and verification‒case study of Chen-You-Lan Watershed,Taiwan
Debris flow run off simulation verification‒ case study Chen-You-Lan
2009/12/28
In 1996 typhoon Herb struck the central Taiwan area, causing severe debris flow in many subwatersheds of the Chen-You-Lan river watershed. More severe cases of debris flow occurred following Chi-Chi e...