describing the different ways that subway tunnels (with an emphasis to Shanghai’s multiline subway tunneling) is related to geotechnical engineering.

Hello. I have ordered 2 pages (6 paragraphs) where I need your help on describing the different ways that subway tunnels (with an emphasis to Shanghai’s multiline subway tunneling) is related to geotechnical engineering. For example in one of the paragraphs you can talk about soil pressure, or the porosity of the soil, or the type of soil, each paragraph should briefly describe how it relates to it and the importance in real life (why should we care about it in other words). I have already completed a few paragraphs and I have attached the file below, this should provide you with a good example of how I want the paragraphs to be. Basically, all you have to do it continue with the document by adding 2 more pages (6 paragraphs = 6 slides). Please make sure that each paragraph has a title. Also, Please try to use a very few references (2-3) if no references at all. This should an explanatory paper/presentation. I basically want your experience to be present. For example if a student came to you and asked you how are subway tunnels are associated to geotechnical engineering, what are the components we should be careful and why? How will you explain it to him (as clear as possible) to make him understand based on your experience? That is the goal for this paper. Please let me know if you have any additional questions. Thank you for helping me out.