The major idea of this paper intends to clarify the problems how to arrange the work of geophysical prospecting and how to survey the underground air-raid shelter effectively in the complex noisy area.

Application of ground penetrating radar in investigation on subterranean cavitation;

Revision of ventilation design terms in the Code for design of civil air defence basement;

Architectural design of the incidental anti-aircraft basement;

It introduces load calculation、inner force analysis and structural design for anti-aircraft basement,illustrates how to calculate nuclear burst applying for equivalent dead-load,and puts forward calculation method of anti-aircraft basement and process of inner force analysis,which can be referred in design.