31 00 00 - EARTHWORK31 01 00 - Maintenance of Earthwork31 01 62 - Maintenance of Driven Piles31 01 63 - Maintenance of Bored and Augered Piles31 01 70 - Maintenance of Tunneling and Mining31 05 00 - Common Work Results for Earthwork31 05 16 - Aggregates for Earthwork31 05 19 - Geosynthetics for Earthwork31 05 23 - Cement and Concrete for Earthwork31 09 00 - Geotechnical Instrumentation and Monitoring of Earthwork31 09 13 - Geotechnical Instrumentation and Monitoring31 09 16 - Special Foundation and Load Bearing Elements Instrumentation and Monitoring31 10 00 - SITE CLEARING31 20 00 - EARTH MOVING31 22 16 - Fine Grading31 23 00 - Excavation and Fill31 23 16 - Excavation31 23 19 - Dewatering31 23 23 - Fill31 24 00 - Embankments31 25 00 - Erosion and Sedimentation Controls31 25 13 - Erosion Controls31 25 23 - Rock Barriers31 25 53 - Sedimentation Controls31 25 63 - Rock Basins31 31 00 - Soil Treatment31 31 13 - Rodent Control31 31 16 - Termite Control31 31 19 - Vegetation Control31 32 00 - Soil Stabilization31 32 13 - Soil Mixing Stabilization31 32 19 - Geosynthetic Soil Stabilization and Layer Separation31 32 23 - Pressure Grouting Soil Stabilization31 32 33 - Shotcrete Soil Slope Stabilization31 34 00 - Soil Reinforcement31 35 19 - Geosynthetic Slope Protection31 35 23 - Slope Protection with Slope Paving31 36 00 - Gabions31 37 00 - Riprap31 40 00 - SHORING AND UNDERPINNING31 41 00 - Shoring31 41 16 - Sheet Piling31 43 13 - Pressure Grouting31 45 00 - Vibroflotation and Densification31 46 00 - Needle Beams31 48 00 - Underpinning31 50 00 - EXCAVATION SUPPORT AND PROTECTION31 51 00 - Anchor Tiebacks31 51 13 - Excavation Soil Anchors31 51 16 - Excavation Rock Anchors31 52 00 - Cofferdams31 53 00 - Cribbing and Walers31 54 00 - Ground Freezing31 56 00 - Slurry Walls31 56 16 - Attapulgite Slurry Walls31 60 00 - SPECIAL FOUNDATIONS AND LOAD-BEARING ELEMENTS31 62 00 - Driven Piles31 62 13 - Concrete Piles31 62 16 - Steel Piles31 62 19 - Timber Piles31 62 23 - Composite Piles31 63 00 - Bored Piles31 63 13 - Bored and Augered Test Piles31 63 16 - Auger Cast Grout Piles31 63 19 - Bored and Socketed Piles31 63 23 - Bored Concrete Piles31 63 26 - Drilled Caissons31 63 29 - Drilled Concrete Piers and Shafts31 64 00 - Caissons31 64 13 - Box Caissons31 64 16 - Excavated Caissons31 64 19 - Floating Caissons31 64 23 - Open Caissons31 64 26 - Pneumatic Caissons31 64 29 - Sheeted Caissons31 66 16 - Special Foundation Walls31 68 00 - Foundation Anchors31 68 13 - Rock Foundation Anchors31 70 00 - TUNNELING AND MINING31 71 00 - Tunnel Excavation31 71 13 - Shield Driving Tunnel Excavation31 71 16 - Tunnel Excavation by Drilling and Blasting31 71 19 - Tunnel Excavation by Tunnel Boring Machine31 73 00 - Tunnel Grouting31 73 13 - Cement Tunnel Grouting31 73 16 - Chemical Tunnel Grouting31 74 00 - Tunnel Construction31 74 13 - Cast-in-Place Concrete Tunnel Lining31 74 16 - Precast Concrete Tunnel Lining