Scientists from St. Petersburg developed a system that could help prevent a lot of man-made disasters, including the one that occurred at the nuclear power plant "Fukushima" in Japan. The functioning of such a system is based on the constant control of the deformation structures.
Specialists Research and Education Center opto-electronic instrument and the Department of Optoelectronic Devices and Systems, St. Petersburg State University of Information Technologies, Mechanics and Optics (ITMO) have developed a system that allows time to identify "weak spots" in the construction of buildings. The authors called their development "opto-electronic warning system of man-made disasters," study leader and doctor of technical sciences, professor Valery ITMO Korotaev said March 18 GZT.RU of its features.
The deformation control
Scientific Group Valery Korotaeva for several years developing systems for the so-called control of linear and angular movements. "To be clear, movement is, roughly speaking, the displacement of one element relative to the other. Here is, for example, the design, at a given load, the deformation of certain parts of it, "- explains the scientist.
Study leader, Doctor of Technical Sciences, Professor Valery ITMO Korotaev said that the development of his scientific group could help to prevent the destruction of high-risk facilities.
Source: Photo from personal archive Valeria Korotaeva
Development specialists from the Northern capital just in time intended to identify such strains. "With the help of our system can be easily controlled, for example, the deformation of the sports facilities where there is a lot of people," — says Korotaev.
The fact that many buildings collapse occurs due to late detection of defects in its structure. "The process of deformation is highly extended in time. This did not occur at one point. The events preceding the collapse of the building or the fault can occur for a long time. And if you monitor the status of especially dangerous objects, you can take precautionary measures, "- said the expert.
The collapse of the roof of the Moscow water park "Transvaal Park" in 2004, which killed 28 people and more than 100 injured
Source: (c) AP Photo / Alexander Zemlianichenko
In the wake of tragedy
According to Valery Korotaeva at early detection of "weak points" in the construction of buildings could easily prevent tragedies such as, for example, the collapse of the roof of the Moscow water park "Transvaal Park" in 2004, which killed 28 people and more than 100 injured, or a similar incident in January 2011 in St. Petersburg, where the roof collapsed hypermarket "On the` key ‘and killed one of the officers of the store.
"If the strain in the construction of" Transvaal Park "or hypermarket" Okay "were identified in time, then these tragedies could have been avoided," — said the scientist.
The collapse of the roof of hypermarket "O` Kay ‘occurred January 25, 2011 in Vyborg near St. Petersburg. As a result of the tragedy, the store employee was killed, 17 people were injured.
Source: (c) AP Photo
Valery Korotaev also believes that the tragedy at the nuclear power plant "Fukushima" perhaps could have been avoided.
"I have, of course, there is no precise information, I can only speculate. It is likely that one of the reasons for the destruction of a strong first substation "Fukushima", compared with the second one could be such deformations in the structure. And if they could detect in time, the substation could withstand the impact of the waves. Of course, there may be other reasons "- suggests Korotaev.
Development of St. Petersburg scientists that detect "weak spots" in the construction of buildings
Easier to prevent than to …
The very development of scientists from St. Petersburg is a system of sensors that are installed on the building and allow it to control the deformation. The sensors are connected to a computer that processes the data and give a signal in the event that these values exceed the threshold.
Another advantage of the new development is in its universality. "These systems are easy to adapt to different structures of objects. There is a long room, there is a short, square and rectangular, in general, with different geometries. Our system can be adapted to all types of construction ", — says Korotaev.