Examination on the Time of Du Fu Offering as a Tribute of Fu to Three Big Ceremonies;

Variation of Cabinet Authority before and after the Great Ritual Controversy of the Ming Dynasty;

The Great Ritual Controversy at the beginning of Jiajing period is an important political affair in the middle Ming Dynasty.

Da-Li-Yi was the important event in Mid-Ming Dinasty .

In the paper, the successful practice on explosive demolition of a dangerous and outdated brick- concrete hall in complex environment is mainly introduced, The determination of blasting schemes, the selection of blasting height and parameters, the design of priming network and delay interval, and safeguard measures are analyzed and introduced.