Assessment of subsidence of Shahriar and Mallard plains due to groundwater abstraction and its effect on infrastructure
Subject Areas :Saeed Kalantari 1 , Naser Ebadati 2 , Mahmoud zakeri nayyeri 3
1 - Master Student of Water Resources Engineering and Management, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
2 - Assistant Professor, Islamic Azad University Deapartment of the environment, Science and researches Branch
3 - Department of Civil Engineering, Islamshahr Branch, Islamic Azad University, Islamshahr, iran
Keywords: Groundwater, Land subsidence, Shahriar and Mallard plains,
Abstract :
Due to the consequences of falling groundwater levels in this study, land subsidence in Shahriar and Mallard plains due to groundwater abstraction has been investigated and its impact on infrastructure is investigated and determined. For this purpose, after collecting the statistics of water wells in the region and determining the characteristics of the aquifer and items such as depth of groundwater level, annual harvest and distribution of wells, the initial data were obtained, then by specifying the thickness of alluvium and layers Sediment taro of the bedrock of the area was identified from exploratory boreholes and well logs, diversity of stratification and sediment type in the area. Determining the immediate and consolidation meeting, the annual subsidence rate is calculated and the amount of subsidence in the study area is determined through satellite data from 2014 to 2020. During these years, the results showed that the highest subsidence rate in the region is 8 cm.
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