Assume you are the design engineer of a consultant firm, give your recommendation with justifications (give theorical reasons) and engineering sketches to the following projects:

2. (i) A public toilet is going to built on top of a layer of 5m thick weak soil stratum with high compressibility. Underneath the weak soil, there are Grade III rock. Suggest a solution for the client. (9 marks)

4. (ii) During the site meeting of a site formation project, the contractor propose to remove the shotcrete for the all the temporary cut slopes in order to speed-up the construction progress. Give your recommendation to their proposal and justify your recommendation. (8 marks)

6. (iii) The Client of your project would like to know more about consolidation settlement during next site meeting. He scheduled 3 minutes meeting time for this issue during the site meeting, prepare a presentation file for the meeting. Time control shall be the major consideration. (8 marks)