Table 1 Uncertain factors affecting the progress of the water intake tunnel construction.
From: Schedule risk model of water intake tunnel construction considering mood factors and its application
Item | Specific factors | Item | Specific factors |
|---|---|---|---|
â‘ Collapse, slippage | Collapse and slippage at the tunnel entrance or in the tunnel | â‘¥ Construction channel | Channel interruption caused by other surrounding projects |
② Rain, snow | Construction transportation interruption caused by rainfall and snowfall | ⑦ Cross-coordination | Small distance blasting crossing (blasting for other subtasks nearby and blasting of adjacent tunnels) |
③ Technology, safety | Surrounding important subtasks of concrete pouring and concrete curing that limit blasting | ⑧ Site handover | Delayed handover on connecting project site |
④ Policy factors | Holidays and shutdown of explosives supply | ⑨ Other | Welcoming inspection |
⑤ Concrete supply | Delayed or limited concrete supply |
