Geosynthetic Reinforced Soil (GRS) Walls

Index

a

• AASHTO allowable stress design (ASD) method 276–283
  • design example 283–287
  • design procedure 277–283
  • forces on reinforce soil mass 278
• active‐and‐earthquake coefficient 104
• apparent cohesion
  • apparent cohesion equation, Wu‐Pham 141, Eqn. (3‐6)
  • conventional equation 140, Eqns. (3‐1) to (3‐4)
  • definition 137–142
  • in terms of Mohr circles 138–139
  • strength envelope 138–139
  • validity of conventional equation 140–141, 242–246
• apparent confining pressure
  • apparent confining pressure equation, Wu‐Pham 141, Eqn. (3‐5)
  • definition 140
  • in terms of Mohr circles 138–139
• articulated panel facing GRS wall 171
• ASTM D4595 192–193
• ASTM D6637 192–193
• at‐rest earth pressure
  • correlations 61–62
  • definition 60
  • values, suggested 63

b

• backfill material and placement
  • fill compaction 387–388
  • free‐draining backfill 386
  • material criteria 386–387
• bearing capacity of foundation soil
  • bearing capacity factors 322–323
  • Meyerhof equation 322–323, Eqn. (5‐44)
• bin pressure
  • applicability 257
  • concept 257–258
• Boussinesq solution 78–79
• bridge abutment (see NCHRP design method)
• bridge bumps 149, 298
• bridge sill 290

c

• cast‐in‐place full‐height facing GRS wall
  • before & after seismic event 163
  • completed wall photos 162
  • construction photos 162
  • construction sequence 160–161
  • cross section, typical 152, 161
  • earthquake resistance 163–164
  • RRR (reinforced railroad/road with rigid facing) 160–164

• CMU (Concrete Masonry Units)
  • costs 159–160
  • description 159
  • types 159
• compaction‐induced stress (CIS) 116–117, ...