Primary Exploration of Practical Evaluation Approach to Urban Underground Space Usufruct

Urban underground space is the space under the city planning area.In our country,urban underground space right of use policies are in exploring stage.It is very important to set up a system of urban underground space right of use evaluation approach.Practical evaluation approach of urban underground space right of use is based on the connection of cost,price and correlative civil engineering budget theory.The method is easily mastered and with high veracity.