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Reinforced Slope Stabilization Plan <br /> In my experience, I have used similar reinforced slope stabilization plans with great <br /> success. there are several factors that can help determine the best facing option for a project. I <br /> recognize steep slopes are structures with a face that is less than 70 degrees from the <br /> horizontal. <br /> In regions where sufficient rainfall is possible, vegetation offers the best facing choice. <br /> Vegetated slopes have many benefits. They provide the opportunity to utilize indigenous <br /> species or select species more tolerant to variations in weather. <br /> Slope stability design is commonly evaluated by calculating the driving and resisting <br /> forces to determine the factor of safety against rotation or movement. The three types of failure <br /> regimes are internal, compound, and global. Internal is defined as failure surfaces that are <br /> contained entirely within the reinforced soil zone. Compound is defined as failure surfaces that <br /> begin outside or behind the reinforced soil zone but pass through the reinforcement and exit in <br /> the foundation or through the structure face. Global is defined as overall/deep seated failure <br /> surfaces that pass outside the reinforcement and into the underlying foundation soils. <br /> Compound and global failure regimes are less common in mountainous terrain due to <br /> close proximity depth to solid foundation zones/bedrock zones. When proper stabilization <br /> techniques are applied the risk factors of both greatly decrease. To overcome internal failure <br /> regimes we will use a geogrid. Geogrid is defined as a geosynthetic material used to reinforce <br /> soils and similar materials. Geogrids are commonly used to reinforce retaining walls, as well as <br /> subbases or subsoils below roads or structures. Soils pull apart under tension. Compared to <br /> soil, geogrids are strong in tension. This fact allows them to transfer driving and resisting forces <br /> to a larger area of soil, and thus stopping internal failure surfaces. <br /> Two visual representations are provided of industry standard application methods. We <br /> will be using similar permanent models without erosion blankets and substituting indeginous <br /> pine forest duff for seeding erosion control. <br /> 1H:1V or Flatter-Vegetated <br /> Permanent—\ Vegetation Supporting Soils <br /> '.'ngotation \ <br /> Microgrid(Secondary) <br /> 1 H:1 V or Flatter Reinforced <br /> IP <br /> Erosion Control ��primary Geogrid F(dtter <br /> Blanket(Temporary <br /> G <br /> or Permanent) <br /> Secondary Reinforcement <br /> Typically Spaced Every 12 inches Property I_ina <br /> ilk <br /> a. b. <br />