490> OBJECTIVE: The students will be able to: Be aware of the importance of underground engineering; Know the principles of planning; Know the different types of underground structures and their design methods; 。 Understand the procedures of design; Understand different construction methods and their scope of application,pros and cons; Know the risk in underground engineering and the countermeasures; Understand the past,present and future of underground engineeringOBJECTIVE： The students will be able to: • Be aware of the importance of underground engineering; • Know the principles of planning; • Know the different types of underground structures and their design methods; • Understand the procedures of design; • Understand different construction methods and their scope of application, pros and cons; • Know the risk in underground engineering and the countermeasures; • Understand the past, present and future of underground engineering