Slope stabilization reinforced earth

Groups of micropiles installed at relatively close centers interact with the surrounding soil to form a composite soil pile retaining structure to stabilize natural and constructed fill slopes. In such cases, micropiles can also be used more directly as soil nails to reinforce soil in earth retention and instability in excavations and slopes as illustrated in Figure 9.1(f). 

FHWA, Berg RR, Christopher BR, Samtani NC (2009) Design of mechanically stabilized earth wails and reinforced soil slopes, voi 1. FHWA GEC 011-VolI. National Highway Institute - Federal Highway Administration, U.S. Department of Transportation, Washington, DC... 

The active area of mechanically stabilized earth walls and slopes uses geotextile separators in two critical locations covering a base drain beneath the reinforced soil zone and around individual lifts of backfill soil. See Fig. 11.10 for these locations. 

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