CMGT 410 Midterm #2 Questions & Answers 100% Correct

Three Safety Considerations when working with cofferdams. - ANSWER1. People working inside the cofferdam 2. Areas surrounding jobsite that would be affected by spillage 3. Falls into the cofferdam Scour - ANSWERErosion of banks and earth surrounding a cofferdam from excess flows and differing water conditions due to the cofferdam being built. Steel Sheet Piling - ANSWER Soldier Pile and Lagging - ANSWER Soil Nails - ANSWER Secant Pile - ANSWER T or F: Soldier Pile Walls are very strong and so they never require tiebacks - ANSWERTrue T or F: Soil nails are typically mechanically tensioned - ANSWERFalse T or F: Helical, or mechanical, tieback anchors are usually the most economical retaining wall tieback. - ANSWERFalse