Researchers from the University Joseph Fourier, Grenoble, France, found a natural mechanism that protects certain areas of earthquake shocks and other effects are devastating.
Based on the experience of Haiti last year's earthquake, known susceptible liquifaction Caribbean, namely the loss of soil structure due to forces which cause the avalanche of water infiltrated the soil surface. "Protection of liquifaction done by mangroves," said one researcher, Philippe Gueguen, yesterday.
These findings obtained after the researchers set up a network accelerator Belleplaine sensitivity at the study site, Guadelupe Islands, Caribbean. This tool serves to record data tremor of 62 points.
Curiosity surrounding the researchers. Understandably, seen with the naked eye, Belleplaine same as other areas in Guadelupe. The top soil consists of sand and clay bottom layer prone sinkhole. From the samples they found that under the ancient mangrove Belleplaine there is a layer which is mixed with limestone for millions of years.
Even more surprising, these mangroves lining is highly flexible, so it becomes an effective defense of the great earthquake shocks. Flexibility mangroves lining, she says, reducing distortion and pressure of a layer of sand on it, thus reducing the potential for landslides. "Belleplaine isolated by nature."
According to Gueguen, natural insulation technique using flexible material has been adopted to protect the modern building engineers from the shock hazard. Although protective, old mangroves lining has its own weaknesses. At a certain frequency of shocks, this layer can resonate produce further damage.
Luckily, said Gueguen, the resonant frequency is already known, so that engineers can make a cheap house with a special structure. With these findings, he said, engineers could look for a safe construction site, so that could save many lives. *** [TECHNOLOGY REVIEW | ANTON WILLIAM | KORAN TEMPO 3561]
These findings obtained after the researchers set up a network accelerator Belleplaine sensitivity at the study site, Guadelupe Islands, Caribbean. This tool serves to record data tremor of 62 points.
Curiosity surrounding the researchers. Understandably, seen with the naked eye, Belleplaine same as other areas in Guadelupe. The top soil consists of sand and clay bottom layer prone sinkhole. From the samples they found that under the ancient mangrove Belleplaine there is a layer which is mixed with limestone for millions of years.
Even more surprising, these mangroves lining is highly flexible, so it becomes an effective defense of the great earthquake shocks. Flexibility mangroves lining, she says, reducing distortion and pressure of a layer of sand on it, thus reducing the potential for landslides. "Belleplaine isolated by nature."
According to Gueguen, natural insulation technique using flexible material has been adopted to protect the modern building engineers from the shock hazard. Although protective, old mangroves lining has its own weaknesses. At a certain frequency of shocks, this layer can resonate produce further damage.
Luckily, said Gueguen, the resonant frequency is already known, so that engineers can make a cheap house with a special structure. With these findings, he said, engineers could look for a safe construction site, so that could save many lives. *** [TECHNOLOGY REVIEW | ANTON WILLIAM | KORAN TEMPO 3561]
