![]() | Calculate Factor of Safety Against Quick Sand Condition in Soil Deposit| Sand Boiling Solved Problem Süre: 6:08 | Boyut: 14.04 MB |
![]() | All About Excavation Safety | Types of Soil |Sloping/Benching/Shoring/Shielding |Hazard & Precaution Süre: 11:34 | Boyut: 26.47 MB |
![]() | Excavation safety | What is Trench | Sloping | Shoring | Shielding | Benching | Prevention technic Süre: 3:31 | Boyut: 8.05 MB |