Recently the problems of experimental assessing the operation and stability for diverse NPP objects and theirelements (structures, building constructions, systems, components etc.) under the conditions of destructive earthquaketypeeffects have become crucial. The complex of ground shake tables (these tables have been under operation inRussia for more than 20 years) makes it possible to reproduce the dynamic loads caused by such effects on the basis ofexplosive technology. The complex in question incorporates a set of seismic platforms with load-carrying capacity upto 800 tons.Accordi According to the technology developed such reproduction of the necessary loading conditions of the objectsunder study is carried out due to energy effect of firing the explosive charges on the bearing structures of the test standsand further transformation of the kinematic processes with the help of special forming devices. In order to set thenecessary direction of the test stand structures movement the blsting of explosive charges can be carried out both in thesoil (directly under the test stand or on the side of it), and in the special load actuators, which are installed on theplatform and creat jet power (recoil force). As forming devices for transformation of the seismic platform kinematicprocesses into the required test parameters the elements of various type and design (pneumatic, hydraulic, pneumohydraulic,mechanical etc) are used.Ng Chosing the weight and the quantity of the explosive charges, conditions of their arrangement (placementdistance and depth, installation in the actuators, etc), setting the firing sequence, as well as application of the formingdevices with certain characteristics, changing the devices layout and operation mode etc. Ensure forming the loads ofthe required type, rate and frequency content.By now with the use of this seismic explosive technology we had tested seismic stability of several structuresincluding seismic isolated buildings, equipment, models of hydraulic engineering works and floating objects.The paper presents the main provisions of design procedure for evaluating the power effect under internalexplosive charges explosion, possibility to obtain necessary dynamic responses with the help of seismic platforms isjustified.
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