Comparing Two dams on active fault: Rudbar lorestan and Clyde

سال انتشار: 1387
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,664

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شناسه ملی سند علمی:

INRC03_113

تاریخ نمایه سازی: 3 مرداد 1387

چکیده مقاله:

In this paper we introduce Rudbar lorstan project is in second phase of studies and near in future will be constructed. In Rudbar project, A potentially active seismic fault(F) has been identified running upstream/ downstream through the dam foundation .In order to prevent excessive damage to the dam should this fault be activated during the life of the project, a movement joint has been included in dam design above this fault. The orientation of the dam has been chosen so that , as far as possible, this movement joint is at a right angle to the dam axis. The geological interpretation of this fault is that it is a right-lateral strike-slip fault, and that previous movement appears to have been largely upstream - downstream with little vertical component, with the left abutment moving downstream relative to the rest of the dam. Previous displacement of the fault can be determined from displacement of marker beds as about m in total. It is not considered to be a causative fault, and movement would occur due to redistribution of stress during a major earthquake on the Main Recent Fault, located about Km to the west of the dam. The last movement of the fault is thought to have taken place some7000 years ago, but displacement of local section of the Main recent fault has occurred more recently than this. The maximum displacement expected of the fault has been assesses as 0.5m. The conceptual design of the movement joint is to limit the shear stress that it can carry to the minimum required for the dam to act normally , carrying sufficient shear across the joint to prevent significant movement of the dam joint under normal load conditions up to the DBE. Then after introducing Rudbar Dam & H.P.P about putting a slip joints in the dam body and presented all characteristic related to this slip joint such as geology , Seismology ,Structure and other aspects. At final we compare Rudbar lorestan dam with Clyde dam in New Zealand that built on an active fault.

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نویسندگان

A. Farid Mojtahedi

Hydraulic Engineer

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  • 4New Zealand's Clyde Power Station?. J W Hatton, J C ...
  • 40The influence of Foundation Conditions On the Design of Clyde ...
  • _ Rudbar Lorestan Dam & Hydro Plant: Challenging Seismicity Conditions" ...
  • "Design of Dam Movement Joint" _ A.C.Morison , TN 104 ...
  • st International Conferenceon Seismic Retrofitting , 20-22 October 20 08, ...
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