I . Tunnel and Underground works Branch of China Civil Engineering Societyis a unofficial academic organization, and is subordinate to the China Civil Engineering Society, the predecessor of which is the Chinese Institute of Engineers set up by our outstanding modern engineer Zhan Tianyou. Under the command of this society, there are many branches like the Bridge and Structure, the Tunneling and Underground Engineering, the Soil Mechanics and Foundation, the Concrete and Stress Concrete, the Port Engineering, the Municipal Engineering, the Urban Public Traffic, the Urban Coal Gas, the Water Supply and Drainage, the Protection Engineering, the Computer Application, the Construction Market and Bidding and the Research of the Project Method Construction, etc. At the beginning of the Tunneling and Underground engin...