Location
Arlington, Virginia
Date
15 Aug 2008, 11:00am - 12:30pm
Abstract
Land subsidence is a worldwide phenomenon, where there is a sudden sinking or gradual downward settling of the earth's surface with little or no horizontal motion. In Iran, this phenomenon is noticed to take place in many areas among which are Meshhed, Kerman, Tehran, Hamedan and others. In some of the above areas, water well installations seem to rise into the air, or some times to produce fissures in the soil and/or showing sinkhole in carbonated rocks. Land subsidence could causes damages in surface and subsurface installations. UNISCO was concerning with this worldwide phenomenon and tried to study it in different parts of the world through groups of work by using GPS, SAR and InSAR techniques that uses radar satellite image. The Iranian authorities in cooperation with others were interesting to see the extension and reasons for Tehran's land subsidence by using the new InSAR techniques, which assured later on the existence of 2 profiles (namely NE-SW profile 1 and N-S profile 3) in a V shape in SW Tehran with 15 cm and 16 cm Land subsidence respectively. The subsidence is mainly due to depletion of aquifer (i.e. water level drop), which causes aquifer compaction.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Ghorbanbeigi, Said and Hamodi, Jafar Naji, "Land Subsidence in Tehran District, Iran" (2008). International Conference on Case Histories in Geotechnical Engineering. 3.
https://scholarsmine.mst.edu/icchge/6icchge/session06b/3
Land Subsidence in Tehran District, Iran
Arlington, Virginia
Land subsidence is a worldwide phenomenon, where there is a sudden sinking or gradual downward settling of the earth's surface with little or no horizontal motion. In Iran, this phenomenon is noticed to take place in many areas among which are Meshhed, Kerman, Tehran, Hamedan and others. In some of the above areas, water well installations seem to rise into the air, or some times to produce fissures in the soil and/or showing sinkhole in carbonated rocks. Land subsidence could causes damages in surface and subsurface installations. UNISCO was concerning with this worldwide phenomenon and tried to study it in different parts of the world through groups of work by using GPS, SAR and InSAR techniques that uses radar satellite image. The Iranian authorities in cooperation with others were interesting to see the extension and reasons for Tehran's land subsidence by using the new InSAR techniques, which assured later on the existence of 2 profiles (namely NE-SW profile 1 and N-S profile 3) in a V shape in SW Tehran with 15 cm and 16 cm Land subsidence respectively. The subsidence is mainly due to depletion of aquifer (i.e. water level drop), which causes aquifer compaction.
