Shah Qasim Dam or Shah Ghasem Dam is located 7 kilometers away from the city of Yasuj.The reservoir behind this dam overflowed last year, and in the spring of 1401 (2022), thanks to abundant rainfall, the dam filled up. This event heralds a year of abundant water and blessings.
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Introduction
The importance of monitoring programs for dam safety is widely accepted. A well designed and executed instrumentation monitoring program can provide information that is needed for a solid understanding of the ongoing performance of a dam and may help detect early warning signs of trouble, [1]. Monitoring programs, including instrumentation and visual inspection, result in better estimation of probability of failure for dam owners. Furthermore, prediction of maintenance cost and rehabilitation time of the dam would be an easy issue using instrumentation. Many researchers and scientists have been interested in assessment of performance of various types of dams by analyzing and processing reliable data prepared by inserted instruments and modern monitoring settlements. Dam safety monitoring program for earthen dams has been considered by the National Hydrologic Warning Council in November 11, 2013. Modes of dam failure and monitoring and measuring techniques were investigated under the supervision of environment agency of England (Almog, E, 2011). A comprehensive research with the title [2]; Evaluating and Maintaining Piezometers, Relief Wells, and Drains were performed by Charles N. Easton et al for Association of State Dam Safety Officials, Inc (2016). There are a practical project about instrumentation of large dams which is issued by the ministry of water resources of india (2017). Well-planned and implemented monitoring is an essential component of successful dam construction and operation. Dam monitoring is subject to numerous regulations [3] and in many countries it is regulated by strict administrative standards (SMARTEC SA, 2017). Masoumi et al, considered reliable monitoring of embankment dams with optimal selection of geotechnical instruments (2017). Behaviors of earth and rockfill dams during construction and initial impounding using instrumentation data and numerical modeling were evaluated by Rashidi and Haeri (2016). In this research, we have evaluated problems and difficulties related to inserting monitoring settlements and measuring instruments in earth dams [4]. The target dam is an earth dam near Yasouj, center of Kohgiluyeh and Boyerahmad province in south east of Iran. In the Shah Qasim Dam, which was exploited in the mid-1970s, there is a considerable leakage and water escape due to some problems (design, implementation and monitoring), according to field observations; for this purpose, downstream lands are drained.
