Chuan yan, tianchyi j yeh, yuan yuan zha hydrology and water resources. Recent research in hillslope hydrology involving tracers, especially in humid catchments has found that the dominant contributor to stormflow in the stream is preevent water averaging 75% world wide, buttle, 1994. It provides an extensive coverage of hydrological engineering, science, and. The motivation for the research is to develop a physically based, lowdimensional representation of in. Read online and download pdf ebook hillslope hydrology and stability. Hillslope hydrology streams are the conduits of the surface and subsurface runoff generated in watersheds.
A stability analysis is performed on the twostate variable, integralbalance model of hillslope hydrology developed by duffy 1996. Temporal evolution evolution of factor of safety during the 3hour triggering event. Hydrological symbols, codes and accuracy of measurements. Soil texture, organic carbon content, elevation, and properties of the vegetation affected the temporal stability of sws for the various layers, but these effects differed between ha and hb, implying that the dependence of sws temporal stability on soil, plants, and topography, on the scale of the hillslope, may differ among different hillslopes. Main results a software tool to compute seepage stimulations and slope stability analysis has been. Unit hydrograph stability and linear algebra sciencedirect.
Request pdf hillslope hydrology and stability landslides are caused by a failure of the mechanical balance within hillslopes. The effect of water level on the stability of slopes. The effect of cohesion and level of groundwater on the. This monograph compiles research findings on soil mass movement into a format usable by practitioners and students. Potential climate change effects on water tables and pyrite oxidation in headwater catchments in colorado richard m. Lecture overview background on hillslope hydrology boussinesq equation for unconfined flow over a sloping bed water balance method for hillslope segments the importance of divergence and convergence of hillslopes. Slope stability analysis, landslide, hillslope hydrology and stability, pdf ebook, pdf, geoscience, remote sensing and gis open pdf and software resources of earthsciences, remote sensing and geographic information system. The chasm structure is designed to help users undertake applications for estimating the effects on slope stability of selected storm events, surface covers, slope plan curvatures and.
Exercises and homework problems are provided for students to engage with the theory in practice. A hillslope hydrology approach for catchmentscale slope stability analysis article in earth surface processes and landforms 295. Seepage and slope stability of chinese hydropower dams. A hillslope hydrology approach for catchmentscale slope. The effect of water level on the stability of slopes sina khanmohammadi and vahid hosseinitoudeshki department of civil engineering, zanjan branch, islamic azad university, zanjan, iran corresponding author. The chasm structure is designed to help users undertake applications for estimating the effects on slope stability of selected storm events, surface covers, slope plan curvatures and other important slope and. Geoprocessing analysis is performed to recondition the digital elevation model and generate data on flow direction, flow accumulation, streams, stream segments, and watersheds. Only with the increasing sizes ond growing numbers of projects has it become. The hydrologic response of a hillslope to rainfall involves a complex, transient saturatedunsaturated interaction that usually leads to a water table rise.
These lecture notes introduces the field of rock slope stability analysis and the purpose such analyses serve in the investigation of potential slope failure mechanisms. In the present study, limit equilibrium methods and finite element method have been used to calculate the factor of safety of earth dam. Describing the fates of precipitation, the mechanics of runoff, and the calculations involved in assessment, this book clarifies the complex interplay of soils, sediment, subsurface flow, overland flow, saturation, erosion, and more. Get hillslope hydrology and stability pdf file for free from our online library created date. Hillslope hydrology provides a comprehensive introduction to the behavior of water on a slope.
Hillslope hydrology and stability ning lu, jonathan w. Lecture overview background on hillslope hydrology boussinesq equation for unconfined flow over a sloping bed water balance method for hillslope segments the importance of. Techniques for measuring subsurface flow on hillslopes. Jarvisc,d a department of forest engineering, resources and management, oregon state university, corvallis, or 97331, usa bglobal institute for water security, national hydrology research centre, university of saskatchewan, 11 innovation. An infinite limit equilibrium stability model that includes the effects of soil suction is developed for this purpose. Hillslope stability and land use 1985 edition open library. The objectives of this paper are a to introduce a stochastic crosscorrelation analysis to hillslope hydrologic processes and stability investigation and b to develop a costeffective sampling strategy to reduce the porewater pressure uncertainty at the region of our interest. It is also an important parameter for the rational management of water resources and adoption of vegetational restorations, especially in semiarid and arid areas, such as the loess. Stead and others published hillslope hydrology and stability find, read and cite all the research you need on researchgate. The hydrologic response of a hillslope to rainfall involves a complex, transient. Hillslope scale temporal stability of soil water storage in. Hillslope hydrology and stability by ning lu january 20.
By means of deterministic slope stability models, hydrological threshold conditions for failure can be established. The relation between geometry, hydrology and stability of. Chasm is an integrated slope hydrologyslope stability numerical model. Download book hillslope hydrology and stability in pdf format. Guide to hydrological practices, volume i, hydrology wmo. Hillslope scale temporal stability of soil water storage. Preevent water is water that was present in the hillslope before the storm as identified by a distinct isotopic or. Dooge and michael bruen department of engineering hydrology, university college, galway ireland received november 5, 1987. Download pdf hillslope hydrology and stability free. The handbook of engineering hydrology aims to fill the twodecade gap since the publication of david maidments handbook of hydrology in 1993 by including updated material on hydrology science and engineering. Campbell abstract a water, energy, and biogeochemical model webmod was constructed to simulate hydrology and pyrite oxidation for the period october 1992. The hydrology component of the stability of altered forest ecosystems safe project experimental design and preliminary nutrient data conference paper pdf available. The relation between geometry, hydrology and stability of complex. Economic s and safety are especially important in hydrology and are the general basis for design standards and guidance.
Geomorphological control on variably saturated hillslope hydrology and slope instability formetta giuseppe1, silvia simoni2, jonathan w. Erik eberhardt university of british columbia geological engineeringearth and ocean sciences, ubc, 6339 stores rd. Chasm school of geographical sciences university of. Hillslope stability and land use water resources monograph. Swgw interaction needs to be understood from the watershed perspective. Regolith stripping and the control of shallow translational hillslope failure. Stability and damping in a dynamical model of hillslope hydrology. You can read online hillslope hydrology and stability here in pdf, epub, mobi or docx formats. Process studies in hillslope hydrology pdf despite rapid hillslope transport processes during events, soil. Published by the american geophysical union as part of the water resources monograph series, volume 11. Sampling schemes for hillslope hydrologic processes and stability analysis based on crosscorrelation analysis jing sen cai, e.
Chasm combined hydrology and slope stability model. Advances in understanding of hydrological processes have been abundant in the last. Hillslope hydrology and stability oregon state university. The geological strength index, gsi, relates the failure criterion to geological observations in the field. Hillslope hydrology and stability ning lu colorado school of mines jonathan godt united states geological survey, colorado about the book landslides are caused by a failure of the mechanical balance within hillslopes. Abet accrediation board for engineering and technology category content. Recent studies have shown that the hillslope connection depends on. Chasm school of geographical sciences university of bristol. Nov 17, 20 hydrological modelling of slope stability 12 17 12. Slope stability can be analyzed using one or more methods. The hydrologic model predicts the water conditions above and below the phreatic surface while the incorporation of soil suction more accurately predicts the shear strength of the. It can be used mainly for preliminary analysis of slopes since it can provide an estimate of the factor of safety with minimum effort from the user. Request pdf numerical modeling of the effect of preferential flow on hillslope hydrology and slope stability the topic of this thesis is the quantification of the influence of preferential. Numerical modeling of the effect of preferential flow on.
However the minimum constructive elements provided in the program do not allow the software to perform analysis for complex cases. While the effects of hillslope hydrology on runoff generation have been. In this exercise, you will perform drainage analysis on a terrain model for the san marcos basin. Rock slope stability analysis utilization of advanced. The hydrology tools are used to derive several data sets that collectively describe the drainage patterns of the basin.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Hydrological slope stability modeling for landslide hazard. Chasm is an integrated slope hydrology slope stability software package. Sidle, 1985, american geophysical union edition, in english. The relation between geometry, hydrology and stability of complex hillslopes examined using lowdimensional hydrological models, doctoral thesis, wageningen university, wageningen, the netherlands. Seepage and slope stability of chinese hydropower dams motivation hydropower dams are growing bigger and are placed in regions with high natural disaster probabilities. The department of forest engineering fe 537 hillslope hydrology. This balance is governed by two coupled physical processes.
The stream restoration program utilizes hydrologic and hydraulic models for estimating runoff quantities, rates and the hydraulic forces impacting a reach of stream. Rock slope stability analysis utilization of advanced numerical techniques dr. These analyses provide parameters for use in stable channel design. On the role of structureprocess interactions in controlling terrestrial systems. Stability and damping in a dynamical model of hillslope hydrology david brandes and christopher j. Journal of hydrology, 111 1989 377390 377 elsevier science publishers b. Citescore values are based on citation counts in a given year e. Forecasting the behaviour of complex landslides with a.
The effect of cohesion and level of groundwater on the slope. Pdf the hydrology component of the stability of altered. Ning lu is professor of civil and environmental engineering at colorado school of mines and his primary research in the past decade has concentrated on hillslope hydrology and slope stability. The study of slope stability is important in the design and. The role of bedrock groundwater in rainfallrunoff response at hillslope and catchment scales c. The analysis is based on watershed and floodplain conditions and determines the volume of water passing through a waterway during a given event. Figure 8 flow chart of the hydrological slope stability modeling using pc raster. Abstract slope stability analysis is one of the most important topics in geotechnical engineering.
The main objective is studying the influence the soil strength parameters including. Irrespective of the type of threshold used, it can be compared through the model with the generated ground water. This coupling of hydrology and stability by the model makes it possible to express the sensitivity to landsliding in terms of frequency and order of magnitude. A simple model is developed to investigate the relative role of network geometry and hillslopes in basin response.
Sampling schemes for hillslope hydrologic processes and. Simslope stands for simplified slope stability analysis software. The software has been written to assist in the estimation of controls on slope stability. Duffy department of civil and environmental engineering, pennsylvania state university, university park joseph p. Soil water storage sws of soil profiles is critical for understanding a number of hydrological and biological processes western et al. A hydrology study tells us about the characteristics of water flows in streams within a study area. A view on some hydrological triggering systems in landslides eost.
Cusumano department of engineering science and mechanics, pennsylvania state university, university park abstract. Hillslope hydrology and stability by lu, ning and a great selection of related books, art and collectibles available now at. In this paper, we investigate the effect of water on the stability of slopes. Jeff mcdonnell richardson chair in watershed science 015 peavy hall 7378720. Chasm is an integrated slope hydrology slope stability numerical model. The objectives of this paper are a to introduce a stochastic crosscorrelation analysis to hillslope hydrologic processes and stability investigation and b to develop a costeffective sampling strategy to reduce the porewater pressure uncertainty at. Chasm is an integrated slope hydrologyslope stability software package. Stability and damping in a dynamical model of hillslope. Difference between hydrologic and hydraulic analysis. The effect of cohesion and level of groundwater on the slope instability using finite element method ashkan gholipoor noroozi, alborz hajiannia. Seasonal and eventbased hydrological and slope stability. Background computational framework test case summary results i.
The network geometry is quantified in a function, termed the width function, that reflects the distribution of runoff with flow distance from the outlet. Most downloaded engineering geology articles elsevier. Geomorphological control on variably saturated hillslope. Symbol parameter dimensions f factor of safety against sliding along sheet joint calculated h height of the overall slope or of each bench 60 m or 20 m respectively. Hydrological modelling of slope stability 12 17 12. The software has been developed by the hydrology group to assist in the estimation of controls on slope stability for a scope of applications ranging from presite engineering investigations to evaluations concerned with the impact of bioengieering on slope stability. Hillslope hydrology edited from 2002 lecture notes by j. Advances in hillslope hydrology have been numerous in the past four decades. Stability analysis of rock slopes using the finite element.
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