Geo 5 slide pdf#

SLIDES: Although many types of mass movements are included in the general term 'landslide,' the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material. The most common types of landslides are described as follows and are illustrated in figure 3. In low-relief areas, landslides occur as cut-and-fill failures (roadway and building excavations), river bluff failures, lateral spreading landslides, collapse of mine-waste piles (especially coal), and a wide variety of slope failures associated with quarries and open-pit mines. Abbreviated version of Varnes' classificationДЄlthough landslides are primarily associated with mountainous regions, they can also occur in areas of generally low relief. Other classification systems incorporate additional variables, such as the rate of movement and the water, air, or ice content of the landslide material.ДЇigure 2. A classification system based on these parameters is shown in figure 2. The various types of landslides can be differentiated by the kinds of material involved and the mode of movement. Figure 1 shows a graphic illustration of a landslide, with the commonly accepted terminology describing its features. The materials may move by falling, toppling, sliding, spreading, or flowing.

The term 'landslide' describes a wide variety of processes that result in the downward and outward movement of slope-forming materials including rock, soil, artificial fill, or a combination of these. An idealized slump-earth flow showing commonly used nomenclature for labeling the parts of a landslide. People were evacuated and the houses nearest the slide were completely destroyed. This landslide and earthflow occurred in the spring of 1995. La Conchita, coastal area of southern California. The information in this publication provides an introductory primer on understandingД«asic scientific facts about landslides-the different types of landslides, how they are initiated, and some basic informationДЄbout how they can begin to be managed as a hazard. Worldwide, landslides occur and cause thousands of casualties and billions in monetary losses annually. Casualties in the United States are primarily caused by rockfalls, rock slides, and debris flows. Landslides in the United States cause approximately $3.5 billion (year 2001 dollars) in damage, and kill between 25 and 50 people annually. Alaska and Hawaii also experience all types of landslides. The primary regions of landslide occurrence and potential are the coastal and mountainous areas of California, Oregon, and Washington, the States comprising the intermountain west, and the mountainous and hilly regions of the Eastern United States. July 2004 Landslides in the United States occur in all 50 States.

Geo 5 slide pdf#

Other calculations of the anti-slide piles (analysis of internal forces, dimensioning of reinforcement of piles) are based on the analysis of active and passive forces in the ' Anti-Slide Pile' program.Landslide Types and Processes The PDF for the report is 1 MB The influence of anti-slide piles on the slope stability assessment is described in more detail in the theoretical part of the help. In subsequent stages the anti-slide pile can only be removed. All input parameters can be modified in the stage of construction, in which the anti-slide pile was introduced. Then, the pile cross-section (circle - diameter of pile d, rectangle - dimensions s x, s y) and the pile parameters are specified - distribution of bearing capacity along the pile length (linear, constant), maximum bearing capacity V u, gradient K and direction of passive force (perpendicular to the pile, parallel to slip surface). double-row pile wall - the pile spacing of front and back row, position, and length of connection beam are entered.standard wall - the pile spacing is entered.Sometimes, an anti-slide pile can be located in mass directly (in this case, it's possible to analyze slope stability, but it's not possible to run the ' Anti-Slide Pile' program). The ' Locate to the terrain' button places the starting point of the pile head on the ground surface. The ' New pile', or ' Modify pile properties' dialog window serves to input the location of the pile. Piles are input by one of two ways (the ' Add in dialog' or ' Add graphically' button).

The ' Anti-slide piles' frame contains a table with a list of input piles.