rock slope Articles

  • Castle rock railroad embankment, Castle Rock, Washington

    Unusual problems call for unusual solutions. That's why a 75-mm (3-in.) thick layer of crushed rock, confined by honeycomb-like geocells, is being used to protect the surface of nearly 1.2 ha (3 acres) of long, steep cut slopes along a 0.4 kilometer (0.25 mi) of Burlington Northern Santa Fe's (BNSF) track in the U.S. Pacific Northwest. Site history The idea is to prevent the kind of ...


    By Presto Geosystems

  • Response of rock-fissure seepage to snowmelt in Mount Taihang slope-catchment, North China

    The complex physiographic and hydrogeological systems of mountain terrains facilitate intense rock-fissure seepages and multi-functional ecological interactions. As mountain eco-hydrological terrains are the common water sources of river basins across the globe, it is critical to build sufficient understanding into the hydrological processes in this unique ecosystem. This study analyzes ...


    By IWA Publishing

  • How To Store Temporary Water On A Slope

    We have occasionally been asked if Rainstore3 chambers could be used on a slope – especially where rock, or other shallow impediment, lies just below the surface. The answer is yes. This paper shall provide guidelines for meeting such a situation. If one continuous storage chamber were to be placed on a slope, storage volume would be limited to the depth of storage (from the bottom of the ...


    By Invisible Structures, Inc.

  • Dynamic programming in slope stability computations

    Dynamic Programming Advantages: Truly unrestrained non-circular slip surface Can be used for weak layer detection in complex systems A conventional slope stability analysis involving limit equilibrium methods of slices consists of the calculation of the factor of safety for a specified slip surface of predetermined shape. The determination of the location of the critical slip surface with ...


    By SoilVision Systems Ltd.

  • Waste Rock Back Analysis

    On October 4, 2004, during field measurements collected in trench LFG-008, a crack developed in the middle of the trench. This occurred during the destruction of the Goat Hill North (GHN) rock pile at the Questa site. The crack varied in width up to a maximum of 100 mm and extended in an arc pattern around the pushed out section of the slope. The slope had been pushed in a convex arc out from the ...


    By SoilVision Systems Ltd.

  • Gaviota pass steep slope, Santa Barbara County, California

    Faced with repair of a severely eroded steep section of pipeline right-of-way on the California coast, engineers determined that GEOWEB Cellular Confinement System was the only system capable of providing a cost-effective and appropriate solution. With a total slope length of 500 feet, a severe pitch of 1:1 and bare rock slope faces, four inch deep GEOWEB was installed in order to “perch” soils ...


    By Presto Geosystems

  • Effect of weathering on the gravitational stability of Questa rock piles

    The Questa Rock Pile Weathering and Stability Project (QRPWASP) is a scientific research project whose purpose was to determine how and to what extent weathering affects the gravitational stability of the Questa mine-rock piles in 100 and 1000 years. The project studied a theoretical composite rock pile taking characteristics from several on site, and was not a site-specific engineering or ...


    By SoilVision Systems Ltd.

  • Effect of weathering on the gravitational stability of Questa rock piles

    The Questa Rock Pile Weathering and Stability Project (QRPWASP) is a scientific research project whose purpose was to determine how and to what extent weathering affects the gravitational stability of the Questa mine-rock piles in 100 and 1000 years. The project studied a theoretical composite rock pile taking characteristics from several on site, and was not a site-specific engineering or ...


    By SoilVision Systems Ltd.

  • Laboratory analysis of the hydrogeological behaviour of rock loose structures on pervious beds

    Large flow interchanges occur between free surface and subsurface flows of river training structures, such as in rock loose chutes based on pervious beds. The filtering action of the base pervious layer can improve the water quality but, at the mean time, reduce the minimum vital flow discharge. This paper, hence, aims to analyse the flow interchanges between the base material and the surface ...


    By Inderscience Publishers

  • Rockfall precursor detection based on rock fracturing monitoring by means of optical fibre sensors

    The monitoring of the acoustic emissions (AEs) due to rock fracturing allows the detection of the rockfall precursor signals, leading to a strong improvement of the real time assessment of the induced risk. A network of piezoelectric sensors (PZTs) provides reliable AE data, as testified by a series of applications in non–destructive testing, but PZTs are strongly affected by lightings and ...


    By Inderscience Publishers

  • Utilising of linear and non-linear prediction tools for evaluation of penetration rate of Tunnel Boring Machine in hard rock condition

    Predicting Tunnel Boring Machine (TBM) penetration rate is a crucial issue for the successful fulfilment of a mechanical tunnel project. Penetration rate depends on many factors such as intact rock properties, rock mass conditions and machine specifications. In this paper, linear and non-linear multiple regression as well as Artificial Neural Network (ANN) techniques were applied to predict the ...


    By Inderscience Publishers

  • The geological strength index: applications and limitations

    The geological strength index (GSI) is a system of rock-mass characterization that has been developed in engineering rock mechanics to meet the need for reliable input data, particularly those related to rock-mass properties required as inputs into numerical analysis or closed form solutions for designing tunnels, slopes or foundations in rocks. The geological character of rock material, together ...


    By Springer

  • Flood control and disaster management

    Flood control refers to all methods used to reduce or prevent the detrimental effects of flood waters (wikipedia). Some of the common techniques used for flood control are installation of rock berms, rock rip-raps, sandbags,  maintaining normal slopes with vegetation or application of soil cements on steeper slopes and construction or expansion of drainage channels. Other methods include ...


    By IWA Publishing

  • Latah creek sanitary sewer main repair, Spokane, Washington

    A SEEMINGLY simple kid’s prank of throwing rocks and other material down a storm drain resulted in a major emergency repair job to prevent the collapse of a 42-in. sanitary sewer main in Spokane, Washington. In a short period of time, a group of kids completely blocked an 18-in. pipe leading to the city’s combined sanitary/ storm drain system. The drain soon began to overflow, sending water ...


    By Presto Geosystems

  • Donzi landfill expansion using stratagrid case study

    Background The Donzi Lane Landfill in Atlanta, GA had been in use since the 1970's for construction and demolition waste disposal. The site was nearing its capacity and additional landfill space was urgently needed due to the accelerating population growth and waste stream generated by development. Due to the high cost and long lead times for designing, permitting and constructing new ...


    By Strata Systems, Inc.

  • Dinosaur provincial park, Brooks, Alberta, Canada

    Dinosaur Provincial Park, in southern Alberta, Canada, is one of the most fossil-rich areas in the world. Recognized as a World Heritage Site by the United Nations, the park attracts hundreds of researchers and many tourists each year to visit, study and excavate. Last summer, the park also attracted some engineers bent on solving an erosion problem. Decades of erosion had carved out a 3-m ...


    By Presto Geosystems

  • Phytodiversity and Soil Study of Siwalik Hills of Ilam, Nepal

    The Siwalik range (locally known as Churia hills) in Nepal comprise a total area of 1,886,000 ha, equivalent to 13% of the country’s total area and consists of hills, steep land slopes, gorges, large spans of river and temporary streams. Study of different kinds of plants, soil and climate and the quantitative analysis of vegetation structure and composition as well as soil analysis at ...


  • Geologic overview of the San Onofre Mountains, camp Pendleton marine corps base, San Diego County, California.

    The San Onofre Mountains are located in the west-central portion of the Camp Pendleton Marine Corps Base in San Diego County. These mountains are composed of a southwest dipping Cretaceous to Pleistocene sedimentary sequence that was deposited in diverse tectonic and depositional environments. The sequence flanks the western boundary of the Peninsular Ranges batholith and its metavolcanic roof ...


    By Hargis + Associates Inc

  • Empire landfill, Taylor, Pennsylvania

    Empire Landfill in Taylor, PA is situated on a 600-acre site, with 203 acres currently under permit for waste disposal. In anticipant of current and future environmental concerns, the management of Empire Landfill, Inc. has ensured that the landfill exceeds today’s design and operational guidelines. Empire Landfill features double-lined cells, with a “geosynthetic sandwich” of geotextile, two ...


    By Presto Geosystems

  • Maccaferri rockfall protection in Tenerife, Canary Island - Case Study

    Problem TF-445 road is an insular road that connects the local municipality of Buenavista del Norte, with Punta de Teno’s lighthouse. It is located on the northwest coast of Tenerife, Canary Islands (Spain). It runs through a very mountainous abrupt area with very ...


    By Officine Maccaferri S.p.A.

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