Civil engineer at us army corps of engineers kalli clarkegan, p. Slope stability and seepage analysis results in slide2. Army corps of engineers engineering manual em 111021902 slope stability. Collecting and laboratory analysis for soilrock samples, foundation design, retaining walls, slope stability for buildings, bridges, and other structures.
Army corps of engineers cecwew washington, dc 20314 manual no. Army corps of engineers planning and engineering communities, we do make our software available to the public. It was found that for the same failure surfaces, method of planes tends to yield exactly the same factor of safety as janbu simplified method when in. This report presents the results of geotechnical analyses and feasibility level geotechnical design recommendations to address levee height, geometry, erosion, access, vegetation, seepage, and slope stability deficiencies within the arcf grr study area. The purpose of this website is to enhance the support services provided to hecras customers. Scribd is the worlds largest social reading and publishing site. The program has been widely used by the us army corps of engineers and us federal highway administration. Armoring structures are typically large, impermeable edifices designed to protect the shore from flooding, wave attack, and erosion.
Army corps of engineers river analysis system hecras is software that allows you to perform one dimensional steady and unsteady flow river hydraulics calculations. The cold regions directory of expertise crdx is an organizational element of the u. Svslope is a slope stability analysis program developed by soilvision systems ltd the software is designed to analyze slopes using both the classic method of slices as well as newer stressbased methods. Press release religious text report software website 2.
The hydrologic engineering center hec has been developing computer software for hydrologic engineering and planning analysis procedures since its inception in 1964. Full graphics package for viewing xsections, profiles, rating curves, and 3. Factors of safety fs values were calculated using both methods, and the results were compared for their applicability. Design of coastal revetments, seawalls, and bulkheads. Utexas analyze the stability of complex slopes software. Army corps of engineers waterways experiment station in 1975. Slide2 can be used for all types of soil and rock slopes, embankments, earth dams, and retaining walls.
This collection of publications is the single official repository for official engineering. Please disseminate to all who may qualify or who you may know that have an interest. Slope stability engineer manual 111021902 us army corps of engineers on. This engineer manual em provides guidance for analyzing the static stability of slopes of earth and rockfill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. This is a module of the departments webbased hydraulics. As used in this manual, the term stability applies to external global stability sliding, rotation, flotation and bearing, not to internal stability failures such as sliding on lift surfaces or exceedance of allowable material strengths.
The infinite slope model is often considered a mere didactic scheme useful to explain slope stability analysis principles. Utexas4 has been considered one of the most sophisticated commercial software available to study the stability of slopes using a twodimensional, limitequilibrium method. Engineer research and development center website website. Hecras is an integrated system of software, designed for interactive use in a multitasking, multiuser network. Stability analysis of concrete structures united states army.
The introduction of powerful desktop personal computers in the early 1980s made it economically viable to develop commercial software products based on these. Reevaluation report grr for the american river common features arcf project. With regard to levees and embankments, we have the ability to perform the explorations and analyses required to certify levees according to fema or u. Slope stability case study by limit equilibrium and numerical methods by. This course includes a multiplechoice quiz at the end, which is designed to enhance the understanding of course materials. Rapid drawdown with multistage geoslope international. Slope stability analysis and slope design optimization. The software in general is very good and ties in well with the way we do things here. Arcf grr appendix c attachment c geotechnical report.
Army corps of engineers is to deliver vital public and military engineering services. Microstation and esri arcgis compatible interactive 2d3d graphical user interface data wrapper to the us army corps of engineers hecras. Army corps of engineers solutions lifecycle kleinfelder. The filter at the dam toe helps increase fs, reducing pore pressures in the dam. Army the inclination of the slope same for all slices. Enhance conditions for colonization of native vegetation by creating surface stabilization and a microclimate conducive to plant growth. Slope protection, usbr united states bureau of reclamation. Slide2 includes builtin finite element groundwater seepage analysis, probabilistic analysis, multiscenario modeling, and support design. Cgt also has expertise in specialized services that include geologic hazard identification and mitigation, including slope stability and fault identification. Soil slope stability analysis analyses of slopes can be divided into two cat. United states army corps of engineers engineering manual em 111021601.
The calculations were performed utilizing commercial slope stability software slopew by geoslope international ltd. Slope stability united states army corps of engineers. Army corps of engineers cecwehd washington, dc 20314 manual no. United states army corps of engineers geotechnical. Usace levee inspection software, dam break analyses, flood inundation mapping, and risk responsetree. Although our software is developed to meet the needs of the u. The crdx is a joint venture of the alaska district in anchorage and the engineer research and development centers cold regions research and engineering laboratory crrel in hanover, n. Engineers must spend appropriate time and effort in verifying that software program input correctly models the problems to be solved and that the resulting.
A case study of safety factor comparison of different. United states army corps of engineers engineering manual. Civil engineer, regional business technical division at u. A seawall is usually a massive concrete structure with its weight providing stability against sliding forces and overturning. Providing documented material to the design engineer as a maintained and updated part of the corps computer library. Headquarters, us army corps of engineers usace, to develop a slopestability package suitable for corpswide use. Criteria are presented for strength tests, analysis conditions, and factors of safety. This manual provides guidance for the design of coastal revetment, seawalls, and bulkheads. The stability condition of slopes is a subject of study and research in soil mechanics, geotechnical engineering and engineering geology. Army corps of engineers new software package for the analysis of floodplains and bridged waterways. Serve to facilitate drainage where installed at an angle on the slope. Slide2 is 2d slope stability software designed to be used for all types of soil and rock slopes. Ge, principal consultant with gregory geotechnical gregeo. Slope stability refers to the condition of inclined soil or rock slopes to withstand or undergo movement.
This package of slopestability programs will offer the following benefits to the corps of engineers by. The graphics and the pointandclick data input are also very good and makes the program very easy to use. Slide2 is a powerful, userfriendly, 2d slope stability analysis program using limit equilibrium method. Consequently, slope stability software became available soon after the advent of computers.
The bureau of reclamation, us army corps of engineers slope stability manual us army corps of engineers, 2003 and others duncan et al. Reliability analysis of earth dams using direct coupling. Slide2 most comprehensive 2d slope stability software. The hecras website provides a number of resources, which include helping the user download software, learn how to use hecras, resolve problems, report bugs, and suggest improvements to ceiwrhec products and service. Us army corps of engineers slope stability 20 department of the army u. Infinite slope is a free software developed to perform simple slope stability analyses adopting, and bringing out, the well known infinite slope limit equilibrium analytical model. This manual provides guidance for the safe design and economical construction of retaining and flood walls. Slope stability analysis and slope design optimization engineering bibliographies in harvard style.
United states army corps of engineers geotechnical engineer gs position announcement unclassified we have announced a geotechnical engineering position for persons external to federal service. The program is used in the field of civil engineering to analyze levees, earth dams, natural slopes, tailings dams, heap leach piles, waste rock piles, and anywhere there is concern for. Software for three dimensional analysis of rock fall and for the design and optimization of protective works using a sophisticated algorithm for spatial. Slope stability analyses include static and dynamic, analytical or empirical methods to evaluate the stability of earth and rockfill dams, embankments. Whats new in slide2 faster sampling method, response surface, added for. Methods for analysis of slope stability are described and are illustrated by examples in the appendixes.
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