Connecting with the newest knowledge of the soft rock theory,this paper puts forward a kind of rational tunneling and supporting method that is suitable to the coal seam with complex structure,by using it the better results are obtained in the actual construction.

Based on the productive experience and a lot of practical data of the Wujia colliery for many years, the author proposed a think and a calcuating method for analysing the economic workable reserves,and put forward that industrial value of the reserves of the complicate coal seam in structure is not depend upon its quantity.