Assessment of geotechnical studies at the settlement of structures with emphasis on the geomorphology of Mashhad metropolis
Subject Areas :ezatolah ghanavati 1 , 2 , amir karam 3 , 4
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Keywords: settlement, building, geotechnical, geomorphology.,
Abstract :
The present research studies the impact and importance of recognizing urban geomorphology on the occurrence of settlement hazards and landslide of excavation walls in engineering structures in Mashhad metropolis. The data includes geotechnical parameters and groundwater level, and the points of settling and falling. The tools used include the urban maps of 1: 25,000 and 1: 2000 and topography of Mashhad and satellite imagery (MMS) and (TM) and (ETM+) related to 1353, 1359 and 1390, and aerial photos of 1342 that using the GIS, SPSS, Excel and Matlab softwares were used for linear regression modeling and artificial neural network and the zoning hazard map was extracted at five levels. The maps show that the central part of the city, which is geomorphologically similar to the alluvial plain, and the southwest part of the city, that geomorphologically landforms of pediment and alluvial fan and mountain and fault are extremely complex in each other, have The highest probability of occurrence of the risk and the north west and west section is suitable for very low risk physical development.