8 results ·
● Live web index
L
ldm.la
article
https://ldm.la/en-us/blog/slope-stabilization-with-geogrids-geotechnical-desi…
This approach is supported by international organizations such as the International Geosynthetics Society (IGS), which establishes technical guidelines based on soil-reinforcement system behavior. In the national context, institutions such as the Mexican Institute of Transportation (IMT) and the Ministry of Infrastructure, Communications and Transportation (SICT) define regulatory requirements for its implementation in infrastructure projects. [...] These tests define reliable parameters for geotechnical design.
### 2. How does drainage influence reinforced slope stability?
Drainage is critical, as it prevents pore pressure buildup in the soil. Poor drainage can reduce shear strength and lead to failure, even in geogrid-reinforced systems.
### 3. What is the advantage of integrating geogrids from the design stage? [...] This approach aligns with practices promoted by international organizations and Latin American technical guidelines (such as ICONTEC as a regional reference).
Slope stabilization with geogrids in Mexico is not only an economically efficient solution but is also supported by:
Technical foundations promoted by the IGS
Standardized testing under ASTM standards
Mexican regulatory criteria (IMT / SICT)
Best practices in design and quality control
L
library.ctr.utexas.edu
research
https://library.ctr.utexas.edu/hostedpdfs/tsusm/0-6792-1.pdf
design guidelines for GRSS. The existing topography, subsurface conditions, and soil properties must be considered when evaluating the site for construction. The investigation should include determining the availability of the required type of reinforced fill and backfill materials. 3. Geogrid or geotextile constructed of polyester, polypropylene, or polyethylene are recommended for soil slope reinforcement. The material should be resistant to heat, ultraviolet light, attack by bacteria and [...] resistance and stability, geosynthetic reinforcement has been employed for repairing failed slopes, constructing new embankments, and widening existing embankments. 2. According to the survey, following the FHWA design guidelines is the most advocated approach for designing GRSS. Other common design methods have been developed by Jewell, Leshchinsky, and Eurocode. Internal and external stability are considered, including rotational, sliding, bearing, and lateral failure. Interactive software is [...] M., and Mitchell, J. K. (1994). Working stress design method for reinforced soil walls. Journal of Geotechnical Engineering, 120(4), 625-645. 70 Elias, V. (1989). Corrosion/durability of soil reinforced structures. Washington, D.C.: Federal Highway Administration. Elias, V., Christopher, B. R., and Berg, R. R. (2001). Mechanically stabilized earth walls and reinforced soil slopes design and construction guidelines. Washington, D.C.: Federal Highway Administration. Elias, V., Fishman, K. L.,
S
solmax.com
article
https://www.solmax.com/ca/en/blog/what-are-the-key-considerations-in-designin…
Reinforced soil slopes (RSS) stand as a cornerstone in modern geotechnical engineering, offering robust solutions for constructing slopes with inclinations less than 70 degrees from the horizontal. These structures are pivotal in combating erosion, facilitating vegetation growth, and ensuring the stability of steepened terrain. The general facing systems deployed in these constructions can be broadly classified into two types: soft or vegetated and hard armored systems, which may or may not [...] When employing geosynthetic materials, ensuring UV stability is crucial for long-term effectiveness, especially in environments with significant exposure to sunlight. Structures with a design life greater than three years, as recommended by FHWA guidelines, should use UV-stable materials to prevent degradation over time. In vegetated structures, where vegetation might provide some protection from UV light, the use of UV-stable facing is still recommended to safeguard against areas where [...] Reinforced soil slopes represent a fusion of engineering excellence and environmental consciousness, addressing both structural and ecological challenges in slope management. Through strategic design, the selection of appropriate facing options, and the integration of advanced materials, RSS provide effective solutions for maintaining slope stability and controlling erosion. As engineering practices evolve, the ongoing innovation in materials and design approaches will continue to enhance the
S
scdot.org
article
https://www.scdot.org/content/dam/scdot-legacy/business/pdf/geotech/2022-by-c…
plans. In addition, the plans should also include a requirement for the Contractor to provide the results of sewn seam testing. Geotechnical Design Manual APPENDIX D D-26 January 2022 D.8 EXTERNAL STABILITY D.8.1 Sliding Resistance According to Berg, et al. – Vol. II (2009): Evaluate the width of the reinforced soil mass at any level to resist sliding along the reinforcement. Use a 2-part wedge type failure surface defined by the limits of the reinforcement (the length of reinforcement at the [...] D-24 Figure D-12, Sliding Stability Analysis ....................................................................... D-26 Figure D-13, Local Bearing Failure (Lateral Squeeze) ............................................... D-28 Figure D-14, Groundwater and Surface Drainage ..................................................... D-29 January 2022 D-1 APPENDIX D REINFORCED SOIL SLOPE DESIGN GUIDELINES D.1 INTRODUCTION This Appendix outlines SCDOT’s design methodology for Reinforced Soil Slopes [...] test. Slope stability analyses should account for interface shear strength along a geocomposite drain. The geocomposite/soil interface will most likely have a friction value that is lower than that of the soil. Thus, a potential failure surface may be induced along the interface. Geotextile reinforcements (primary and intermediate layers) must be more permeable than the reinforced fill material to prevent a hydraulic build up above the geotextile layers during precipitation. Special emphasis on
C
cedengineering.com
article
https://www.cedengineering.com/userfiles/G06-001%20-%20Geotechnical%20Enginee…
For detailed analyses required for final design, refer to FHWA (2001b). The computer program ReSSA (2001) noted earlier, can perform analysis and design of reinforced soil slopes using the methods described in FHWA (2001b). Geotechnical Engineering: Slope Stability – G06-001 6-56 6.10 IMPROVING THE STABILITY OF CUT SLOPES The two most common types of cut slope failures are deep-seated and shallow surface failures. Both of these types of failure and their mitigation are discussed in this [...] Geotechnical Engineering: Slope Stability – G06-001 6-51 Figure 6-24. Reduction of grade line to improve slope stability. Figure 6-25. Use of counterweight berm to improve slope stability. Figure 6-26. Use of shear key to improve slope stability. Geotechnical Engineering: Slope Stability – G06-001 6-52 As illustrated in Figure 6-27, there are three possible failure modes for reinforced slopes: 1. Internal - the failure plane passes through the reinforcing elements. [...] recommended for the analysis of slope stability are given in Table 6-1. Table 6 -1. Slope stability guidelines for design Foundation Soil Type Type of Analysis Source of Strength Parameters (see Chapter 5) Remarks (see Note 1) Short-term (embankments on soft clays – immediate end of construction – φ = 0 analysis).
L
library.geosyntheticssociety.org
article
https://library.geosyntheticssociety.org/wp-content/uploads/resources/proceed…
Comprehensive guidelines for the design, specification and contracting of mechanically stabilized earth slopes. Reinforced soil slopes may be contracted using
E
emerald.com
article
https://www.emerald.com/books/book/17610/chapter/96476251/Design-of-soil-rein…
Any potential slip failure passing at the back of the reinforced soil structure should also be checked using traditional slope stability analysis software.
D
dot.ca.gov
official
https://dot.ca.gov/-/media/dot-media/programs/engineering/documents/geotechni…
may affect global stability, long-term settlement, and how to use available on-site borrow as the reinforced soil. Interpreting engineering properties of in-situ soils using correlations is acceptable. Perform a geotechnical investigation to determine the engineering properties of: • • • Retained soils (i.e., native soils or existing embankment that will be retained behind the reinforced soil) including unit weight, and shear strength and the potential for groundwater seepage. Reinforced soil [...] System Water that infiltrates through deteriorated pavement or the retained slope may compromise the stability of the GRE. To drain water in the soils, provide a drainage system between the reinforced soil and the retained soil (Figure 1) especially when design for highway widening or slope restoration. A typical drainage system for GRE includes: • • • Subdrain placed behind and near the bottom of the reinforced soil and along the alignment of the GRE. The subdrain includes 4-inch diameter [...] Geosynthetic Reinforced Embankments September 2023 Page 1 of 17 1 Reinforced Embankments Geosynthetic Reinforced Embankment (GRE) is a system that incorporates planar geosynthetic reinforcement within a slope (Figure 1) for slope inclinations less than 70 degrees from horizontal. A GRE is also referred to as a Reinforced Soil Slope. Situations where GRE may be used include: • • • • Limited right of way Shortage of fill quantity for slope construction Excess of excavated materials Distressed or