New words and phrases floodgate防洪闸 breakwater防波是 storm tide风暴潮 hydrological unit水文单元
New words and phrases floodgate 防洪闸 breakwater 防波堤 storm tide 风暴潮 hydrological unit 水文单元
1.Introduction Land subsidence can be defined as the differential sinking of the ground surface with respect to surrounding terrain or sea level.Land subsidence can result from natural causes such as tectonic motion and sea level rise or man-induced causes such as the withdrawal of groundwater,oil and gas,the extraction of coal and ores and the underground excavation for tunnel and cavern.Land subsidence is usually observed as a series of disastrous phenomena
Land subsidence can be defined as the differential sinking of the ground surface with respect to surrounding terrain or sea level. Land subsidence can result from natural causes such as tectonic motion and sea level rise or man-induced causes such as the withdrawal of groundwater, oil and gas, the extraction of coal and ores and the underground excavation for tunnel and cavern. Land subsidence is usually observed as a series of disastrous phenomena. 1. Introduction
Examples Examples of these phenomena are underground utility lines cracking,seawater intrusion and settlements of buildings and civil infrastructures. Therefore,land subsidence is one of the challenging issues that need to be addressed in many countries including Australia,China,Egypt,France,Germany, India,Iran,Israel,Italy,Japan,Mexico,Poland,Saudi Arabia,Sweden,the Netherlands,UK and USA
Examples of these phenomena are underground utility lines cracking, seawater intrusion and settlements of buildings and civil infrastructures. Therefore, land subsidence is one of the challenging issues that need to be addressed in many countries including Australia, China, Egypt, France, Germany, India, Iran, Israel, Italy, Japan, Mexico, Poland, Saudi Arabia, Sweden, the Netherlands, UK and USA. Examples
Examples Land subsidence has occurred in many areas, particularly in densely populated deltaic regions throughout the world.Most of the major subsidence areas have developed probably since World War ll because of accelerated rates in the use of water and oil and gas from the ground
Land subsidence has occurred in many areas, particularly in densely populated deltaic regions throughout the world. Most of the major subsidence areas have developed probably since World War II because of accelerated rates in the use of water and oil and gas from the ground. Examples
It was reported in 1995 that there were more than 150 major cities in the world where subsidence were substantial (Barends et al.,1995,1998).Because of the wide distribution of land subsidence and its severe consequence to environment and economy, land subsidence has been one of the topics needing research and technology transfer at the international level
It was reported in 1995 that there were more than 150 major cities in the world where subsidence were substantial (Barends et al., 1995, 1998). Because of the wide distribution of land subsidence and its severe consequence to environment and economy, land subsidence has been one of the topics needing research and technology transfer at the international level