Category: Dams and Earthquakes

Largest network for monitoring sinking land OK’d

(February 10, 2007) China’s largest network for monitoring land subsidence, or land sinking, has passed appraisal tests, the China Geological Survey, a bureau of the Chinese Ministry of Land and Resources, said yesterday.

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China’s big dams: Are they safe?

(January 29, 2007) It goes without saying that flood control is one of the most important functions a dam project can fulfill. However, it is unrealistic to build a dam expecting it to achieve a permanent solution to a flood problem.

The bridge doctor

(October 14, 2006) (Article excerpt) … [Engineering professor Maria Feng and her colleagues at University of California (Irvine)] have developed sensors that monitor stress on everything from bridges and high-rise buildings to dams that are prone to damage from earthquakes. One of the devices is a fiber optic sensor that’s the size of a half dollar.

Landslide hazard monitoring in China with an example from the Baota landslide, three gorges area

(2006) The purposes of landslide monitoring are applied to analysis, forecasting and control of landslide. The indicators in landslide monitoring include the geological indicators, ground displacement indicators, indicators of displacement in borehole, ground water indicators (pore pressure, ground water table, ground water chemistry), induced factor indicators (weather, human activity), geophysical indicators and geochemical indicators. The techniques in landslide monitoring include extensometer of ground fissures, inclinometer in borehole, global position system, remote sensing and integrated real time monitoring system. A case study of Baota landslide in the enclosed landscape of the three gorges projects of Yangtze river is detailed in this paper.