Download Geo-Congress 2014 technical papers : geo-characterization by Murad Y Abu-Farsakh; Xiong Yu; Laureano R Hoyos; American PDF

By Murad Y Abu-Farsakh; Xiong Yu; Laureano R Hoyos; American Society of Civil Engineers. Geo-Institute,; American Society of Civil Engineers

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Read or Download Geo-Congress 2014 technical papers : geo-characterization and modeling for sustainability : proceedings of the 2014 Congress, February 23-26, 2014, Atlanta, Georgia PDF

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Extra info for Geo-Congress 2014 technical papers : geo-characterization and modeling for sustainability : proceedings of the 2014 Congress, February 23-26, 2014, Atlanta, Georgia

Sample text

Within each of these sections, Krahn (2004) explained that interslice forces are considered and the conditions of force equilibrium can be satisfied taking directions normal and parallel to slip surface. Compared with other method, Morgenstern-Price’s method is the closest to the equilibrium approach. Therefore, this method will be used in soil nail design in order to form an economic and efficiently design . 6 Design parameters In soil nail calculation and SLOPE/W, soil properties and conditions are the essential components for both of these calculations.

If the slope has different critical criteria, then the design will contain different critical sections of design. Thus, the slope will be separated into different zones in terms of soil nail parameters. In soil nail design, based on Hausmann (1992) and MGSL Ltd (2006) the following equations are noted. 8) where Φ = stress reduction factor according to AS 4100:1998 , fy= Yield stress of steel bar. 4 Analysis of slope stability with soil nail element When the soil nail is applied into the slope, theoretically the slope is stabilised.

The tests test will be described in the section on Testing on soil nail. 5 Procedure of pull--out test for nail sample The installation procedure of the pull-out test nail is similar to a general soil nail construction procedure. However, a pull-out test nail needs to provide a free bonded length.. Test nails require partial grouting of the nail to develop a bonded length. Therefore, in the grouting stage stage, the grout should applied to the bonded length only. For the purpose of the test test,, packer should be provided to limit the grout material flow to the free-bonded bonded length.

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