Can you open a shell engineering company and give orders to other companies to operate it?

In your situation, it doesn't matter whether you have a shell company or not. It is best to work directly with a company to win the project and then sell some. But to tell the truth, your uncle is the district chief, and I don't recommend you to do that. You will hurt him and you. It is illegal for shell companies to undertake projects, and the construction law requires them to have corresponding qualifications and go through legal bidding procedures.