Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 191 for “"Landslides"”.
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Movement of Reactivated Landslides
… slow"" and ""extremely slow"" moving reactivated landslides in stiff clays and clay shales, is typically controlled by fluctuations in piezometric levels; the relations between rate of movement and piezometric levels and factor of safety (proportional to inverse of shear stress level) are …
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Analysis and control of landslides
The section of this report devoted to the control of slides serves to illustrate the more typical situation of a movement, that is not subject to a theoretical analysis. The great majority of slides that occur in natural ground pass through complex soil stratifications that do not permit the …
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Analysis and behavior of preexisting landslides
… the shear strength and long term behavior of landslides and in particular preexisting shear surfaces. The research involved laboratory testing to determine the strength recovery, if any, of cohesive soils with varying plasticity, effective normal stress, and the applicability of the recovered …
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Rimforest Landslides, San Bernardino Mountains, Southern California
… Peak near the community of Rimforest are active landslides. From at least the 1920's to 1988 the primary activity has been mass wasting by rockfall in highly fractured quartz monzonite. Tension cracks in the adjacent area indicate that active landsliding may be spreading. Landsliding in this area …
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On rainfall-induced landslides : a deterministic approach
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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Physical modelling of landslides in loose granular soils
The catastrophic consequences associated with landslides necessitate predictions of these hazards to be made with as much certainty as possible. However, the often complex nature of these events make predictions highly challenging. In this thesis, a number of hypotheses related to the triggering …
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Probabilistic Modeling of Shallow Landslides at Regional Scales
… hillslope stability that may lead to increased landslides, which adds sediment to streams, elevates flooding, and impacts downstream natural and built resources. This dissertation aimed to improve mapping landslide hazard by integrating process-based and data-driven statistical models. To …
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Failure processes in submarine landslides: a geomorphological approach
… Slide, one of the largest known submarine landslides, to investigate three aspects<br/>of submarine mass movements: spreading, fractal statistics and morphology and slide<br/>development.<br/>The morphological signature of spreading, in the form of a repetitive pattern of ridges …
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Analyzing internal shearing in compound landslides using MPM
Landslides cause significant damage worldwide and therefore epitomize the most important problems in geotechnical engineering. Hence, perceiving the mechanics involved in the deformation process of landslides is necessary for risk assessment. In addition to the resistance offered by basal shear …
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A 4D photogrammetric system for studying flow-like landslides
This thesis presents a photogrammetric system developed for experimental studies of laboratory landslide models. The hardware captures granular flows as time-series three-dimensional (4D) point clouds, producing high-quality digital datasets of laboratory landslide experiments. The software …
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Movement of landslides in stiff clays and clay shales
… with estimated annual fatalities resulting from landslides near 5000 and economic losses amounting to over $15 Billion U.S. dollars. Yet, the stability of natural and man-made slopes is generally evaluated using limit equilibrium methods expressed as a ratio of resisting and driving forces …
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Landscape, Livelihoods and Risk: Community Vulnerability to Landslides in Nepal
The occurrence of fatal landslides in Nepal is increasing with time, faster than the effects of monsoonal variations. Possible explanations for the trends observed include: land-use change, population growth, and the development of transport infrastructure. However, to date, there is little …
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Cross-border risk assessment of earthquake-induced landslides in Central Asia
… populations and resources. Among these hazards, landslides pose a serious threat to human life and human facilities. The large variability of local geological materials, together with the difficulties in forecasting heavy precipitation locally and in quantifying the level of ground shaking, call …
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The role of frictional heating in the development of catastrophic landslides
… an existing one, applicable to large deep seated landslides and rockslides consisting of a coherent mass sliding on a thin clayey layer. The considered time window is that of catastrophic acceleration, starting at incipient failure and ending a few seconds later, when the acquired displacement and …
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Distribution, causes and nature of natural landslides in Devon and Cornwall
… concerning the distribution and nature of 9000 landslides in Great Britain. The South West accounts for 1,700 of the listed slope failures. Problems have arisen because in many areas the database merely serves as an archive of previous studies and is not a true representation of landsliding in …
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Integrated geophysical investigation for understanding agriculturally induced landslides in southern Peru
This thesis presents results of near-surface geophysical surveys conducted at the Majes I agricultural development (60 km west of Arequipa, Peru) where the nexus of geology and agriculture has increased landslide activity along the Majes-Siguas River Valley. The specific project goals were to …
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Role of shear and tensile failure in dynamically triggered landslides, The
Includes bibliographical references (pages 73-76).
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Numerical modeling of submarine landslides and surface water waves which they generate
Underwater landslides are a common source of tsunamis in coastal areas. In this thesis, three numerical models are developed to simulate the coupling of submarine landslides and the surface waves which they generate. Three different rheologies of the submarine sediments are considered: a viscous …
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Hydro-climatic forcing of slow-moving landslides: data-driven and modelling approaches
L'abstract è presente nell'allegato / the abstract is in the attachment
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