By Alex K. Tang, John M. Eidinger
Subsidized through the Technical Council on Lifeline Earthquake Engineering of ASCE.
whilst a significance 8.8 earthquake happened off the coast of Chile on February 27, 2010, it affected eighty percentage of Chile's inhabitants. harm to lifelines was once because of robust floor shaking, everlasting floor deformation, lateral unfold, and a tsunami within the coastal components of Bio Bio and Maule. Lifeline prone have been considerably disrupted for the 1st week, at a substantial fee to Chile's financial system.
This TCLEE record discusses intimately the results of the earthquake, as saw through an ASCE-TCLEE group of civil engineers in April 2010. The group tested the functionality of lifeline infrastructure platforms, together with transportation, ports, gasoline and liquid gasoline, electrical energy, telecommunications, water and wastewater, and airports. an outline of every system's functionality is supplied, through an outline of the wear and tear to express sectors or destinations. An research of infrastructure interdependencies and resilience in Chile is incorporated, in addition to a file on emergency reaction, restoration, and social impression.
This monograph might be of specific curiosity to civil engineers, managers, planners, emergency administration body of workers, and govt officers charged with preserving lifeline infrastructure platforms to resist earthquakes and different usual hazards.
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Additional resources for Chile earthquake of 2010 lifeline performance
An example of this type of failure was the Juan Pablo II Bridge over the Bio Bio River in Concepción (Fig. 34). Damage was also caused by lateral spreading at approach abutments and culvert crossings near waterways and in areas of alluvial soils. The Llacolen Bridge in Concepción suffered damage when the soil under the eastern abutment moved toward the Bio Bio River (Fig. 36). The bridge was reopened to restricted traffic with a temporary Bailey bridge; however, major repairs will be required. Near Talcahuano, the railroad was also damaged by lateral spread.
One of the radio warnings 20 issued by the country’s president prematurely announced that the tsunami threat had passed when, in fact, it had not. Tsunami notifications across the Pacific Ocean resulted in thousands of people evacuating from low-lying coastal areas in Hawaii, other Pacific Islands, and other Pacific coasts. NOAA’s predicted arrival tsunami times were accurate; however, the wave amplitude predictions have much more uncertainty. In some places, water receded ahead of the tsunami, but the wave amplitudes were only centimeters to 1 m high and did not cause any damage.
2 Geotechnical Engineering Aspects Ground Shaking The ground shaking that occurred during this earthquake was highly variable over the area affected by the rupture zone. 05 g) was felt in most areas for approximately 60 to 90 seconds. 65g at sites in Concepción. 14 shows the recorded motions at Constitucion, a coastal town north of Concepción, which also experienced strong ground shaking. 5 g. 60 g. com) reconnaissance teams. 14. Accelerogram from site in coastal Constitucion showing strong shaking for more than a minute.
Chile earthquake of 2010 lifeline performance by Alex K. Tang, John M. Eidinger