Review the following:
Discussion Questions 6 (DQ6)
1. Who should be responsible for excavation safety?
2. What are the requirements to be a “competent person” under OSHA?
3. What affects the decision of what type of support system to use?
4. When might you use the caisson excavation method?
Complete and submit answers to Problems 4 and 5 at the end of the tact chapter.