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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Hydraulic modeling and erosion vulnerability with historical approach in eastern ancient civilizatio...
Hydraulic modeling and erosion vulnerability with historical approach in eastern ancient civilization, elamite /susa civilization in unesco world heritage, tchogha-zanbil, founded 1250 b.c.
Today¡¯s Chogha Zanbil, the antique Elamite city of Dur Untash is situated in the vicinity of the river Dez in the region of
Khuzestan/Iran at 48¡ã31'16.93" east longitude and 32¡ã00'32.61" north latitude. Susa, the next bigger city is to be found at
a distance of about 40 kilometres. Dur Untash was not built on the shore of the river but on a plateau of 50 m height
above the river level and was separated by a few smaller hills from the river.
The main threat of the Tchogha Zanbil site is natural water erosion which is happens every years in fall and spring¡¯s
heavy flash rains. It develop the natural drains conveys¡¯ upstream which in the future may reach the heritage¡¯s
structures. This research also revealed some new structures on the 3rd border of ancient city. There found some
termination of drains which seems as the water reservoir or primary clarification tanks preparing the surface run-off
discharging to surface water resources or recycling systems for reuse in domestic consumption. After technical studies
on material and symmetric and geometric survey and modeling, it became clear as a hypothesis that they may be water
storage and main collector of natural drains due to heavy rains. One of these structures has been survived during recent
years and the other or buried under the 3rd border wall¡¯s ruins. Also the survived one is threaded by surface erosion
also. This research has tried to check out the erosion factors and estimate the erosion amount per year to find out the
protection measures plan for more conservation of this valuable heritage. Figure 2 shows some erosion developments at
the upstream. Also some faults are other threat sources of natural erosion and destruction like Bam Castle. Figure 3
also shows the mentioned faults.
The research has done some field studies and laboratory tests, found out the soil characteristics and has modeled the
erosion amount and transferred sediment in the sub-basins of heritage site via two famous models M&MF and modified
MPCIAK. Maps which have been generated during these models illustrated briefly in the paper and final erosion amount
calculated. Results led the researchers to identifying at risk sub-basins and important drainages for erosion control.
File Size : 3,454,768 bytes
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Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 13/08/2015
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