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hell me!!!
Shotcrete support/ Upper Horizontal tunnel Excavation/ Upper Horizontal tunnel concrete/ Shaft and Lower Horizontal Excavation/ Steel Pipe Installation & Concrete backfill/ Consolidation & Backfilling Grouting/Closuring Adit/ Surge Tank Concrete and Grouting/ Trash rack, Gate & Hoist Installation/ River Dredging/ Earth Excavation/ Rock Excavation/ Substructure Concrete/
Shotcrete support/ Upper Horizontal tunnel Excavation/ Upper Horizontal tunnel concrete/ Shaft and Lower Horizontal Excavation/ Steel Pipe Installation & Concrete backfill/ Consolidation & Backfilling Grouting/Closuring Adit/ Surge Tank Concrete and Grouting/ Trash rack, Gate & Hoist Installation/ River Dredging/ Earth Excavation/ Rock Excavation/ Substructure Concrete/

