The key answer of exercise 3
The key to exercise solutions in chapter Video 1 - Big city construction for the textbook Outcomes Advanced - Student's Book with authors Carol Nuttall and Amanda French from National Geographic Learning
Question
Watch the video and decide what you think the three main challenges are. How do they resolve them?
Answer
- making a hole for the enormous foundations without disturbing subway lines (resolved by digging rather than blasting foundations)
- bringing materials into a major city centre (resolved by lifting materials into the building right away by crane; resolved by bringing large pieces into the city early in the morning)
- the size of materials, particularly the spire (resolved by bringing in pieces by escort and assembling them above ground)