رﻓﺘﺎر ﻧﮕﺎري ﺳﺪ ﭼﺮاغ وﯾﺲ در دوران ﺳﺎﺧﺖ ﺑﺎ اﺳﺘﻔﺎده از ﻧﺘﺎﯾﺞ اﺑﺰار دﻗﯿﻖ و ﭘﯿﺶﺑﯿﻨﯽ رﻓﺘﺎر ﺳﺪ در دوران آﺑﮕﯿﺮي

Monitoring of Cheragh-veis Dam During Construction Using Instrumentation Data and Investigation of dam behavior during impounding

ﺑﻪﻣﻨﻈﻮر ﮐﻨﺘﺮل اﯾﻤﻨﯽ و ﭘﺎﯾﺪاري اﺟﺰاي ﻣﺨﺘﻠﻒ ﺳﺪﻫﺎي ﺑﺰرگ در ﻃﻮل دوران ﺳﺎﺧﺖ ﺑﺎ ﻧﺼﺐ اﺑﺰارﻫﺎي ﻻزم ﻣﻘﺎدﯾﺮ ﻓﺸﺎرﻫﺎي ﻣﻨﻔﺬي ، ﻓﺸﺎرﻫﺎي ﺗﻮده ﺧﺎك و ﺗﻐﯿﯿﺮ ﺷﮑﻞﻫﺎ در ﻃﻮل ﺳﻪ دوران ﺳﺎﺧﺖ، اوﻟﯿﻦ آﺑﮕﯿﺮي و زﻣﺎن ﺑﻬﺮهﺑﺮداري اﻧﺪازهﮔﯿﺮي ﺷﺪه و ﻋﻤﻠﮑﺮد ﺳﺪ ﻣﻮرد ارزﯾﺎﺑﯽ و ﺗﺠﺰﯾﻪوﺗﺤﻠﯿﻞ ﻗﺮار ﻣﯽﮔﯿﺮد. در اﯾﻦ ﺗﺤﻘﯿﻖ ﺳﻌﯽ ﮔﺮدﯾﺪه ﻧﺘﺎﯾﺞ اﺑﺰار ﻣﻨﺼﻮب در ﺳﺪ ﭼﺮاغ وﯾﺲ ﻣﻮرد ﺗﺤﻠﯿﻞ و ﺑﺮرﺳﯽ ﻗﺮار ﮔﯿﺮد. ﻫﻤﭽﻨﯿﻦ ﺗﺤﻠﯿﻞ ﻣﺪل دوﺑﻌﺪي و ﺳﻪﺑﻌﺪي ﺳﺪ ﻣﻄﺎﺑﻖ ﺑﺎ ﻣﻨﺤﻨﯽ زﻣﺎن ﺳﺎﺧﺖ آن ﺗﻮﺳﻂ ﻧﺮماﻓﺰار اﺟﺰاءﻣﺤﺪود آﺑﺎﮐﻮس ﺑﻪﺻﻮرت ﻻﯾﻪﻻﯾﻪ ﻣﺪل ﮔﺮدﯾﺪه و ﻣﺸﺨﺼﺎت ﮐﺎﻟﯿﺒﺮه ﺷﺪه ﻣﺼﺎﻟﺢ ﺑﺮاي ﻫﺮ دو ﻣﺪل ﺑﻪ ﺗﻔﮑﯿﮏ اراﺋﻪ ﮔﺸﺖ و ﭘﺲازآن، آﺑﮕﯿﺮي ﻣﺮﺣﻠﻪﺑﻪﻣﺮﺣﻠﻪ در ﻣﺪل ﺳﻪﺑﻌﺪي ﻟﺤﺎظ ﮔﺮدﯾﺪ. ﺑﻪﻣﻨﻈﻮر دﺳﺘﯿﺎﺑﯽ ﺑﻪ ﺗﻄﺎﺑﻖ ﻣﯿﺎن اﺑﺰار دﻗﯿﻖ و ﻣﺪل ﺑﺮ ﭘﺎﯾﻪ ﭘﺎراﻣﺘﺮﻫﺎي اوﻟﯿﻪ، ﺑﺎ ﺗﻐﯿﯿﺮ ﺧﺼﻮﺻﯿﺎت ﻣﺼﺎﻟﺢ، ﻣﺪلﻫﺎي ﻋﺪدي دوﺑﻌﺪي و ﺳﻪﺑﻌﺪي ﮐﺎﻟﯿﺒﺮه ﮔﺸﺘﻪ و ﭘﺎراﻣﺘﺮﻫﺎي دﻗﯿﻖ ﻣﺼﺎﻟﺢ ﺑﻪ دﺳﺖ آﻣﺪ. ﺑﺎ ﺑﺮرﺳﯽ ﻣﻘﺪار ﻣﺎﮐﺰﯾﻤﻢ ﺿﺮﯾﺐ ﻓﺸﺎر آب ﺣﻔﺮهاي در ﻧﻘﺎط ﻣﺨﺘﻠﻒ ﻫﺴﺘﻪ اﯾﻦ ﻧﺘﯿﺠﻪ ﺣﺎﺻﻞ ﺷﺪ ﮐﻪ ﻧﺮخ ﻣﻨﺎﺳﺐ آﺑﮕﯿﺮي ﺑﺎﻋﺚ اﻓﺰاﯾﺶ اﯾﻦ ﺿﺮﯾﺐ ﻧﮕﺸﺘﻪ و در ﻃﻮل آﺑﮕﯿﺮي ﻓﺸﺎرﻫﺎي آب ﺣﻔﺮهاي ﮐﻪ ﺑﯿﺸﺘﺮﯾﻦ ﻣﻘﺪار آن در ﮐﻒ ﻫﺴﺘﻪ ﺗﺸﮑﯿﻞﺷﺪه اﺳﺖ ﺑﻪﻃﻮر ﻋﻤﺪه در ﺣﺎل ﮐﺎﻫﺶ و ﻣﺤﻮ ﺷﺪن اﺳﺖ و ﺧﻄﺮي از اﯾﻦ ﺑﺎﺑﺖ ﺳﺪ را ﺗﻬﺪﯾﺪ ﻧﻤﯽﮐﻨﺪ.

One of the most important challenges in development projects beside designing and performing them is to control immunity and stability of the several parts during different stages of construction, impoundment, and operation. The main purpose of instrumentation in dams is to evaluate operation and reaction of these structures under different load conditions, developing a better understanding of their behaviors, and checking on the design concepts. Geotechnical engineers must work with natural geologic materials, while the properties of geologic materials are generally diverse, unpredictable or even unknown. However, data derived from instrumentation which is usually being done via back analysis, would help them to estimate design parameters more accurately. In this research, the datasets obtained from instrumentation on the Cheragh veis Dam (62meter height, 10meter crest width and274 meter crest length) constructed in Iran, will be monitored. Out of raw original data, valid ones were selected based on compatibility terms and engineering judgment. Eventually, reliable ones were compared with the results of back analysis applying finite element model. Based on the alleged comparison, having done some iterative analysis, modified properties of materials would be obtained