Importance of using roller compacted concrete in techno-economic investigation and design of small dams
Abstract In recent years, and under constraints caused by persistent drought, Algeria has launched a new mobilization strategy for surface water resources from small and medium dams. However, by making a review of the studies and achievements of twenty small dams in the west of Algeria, some deficie...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-07-01
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| Series: | Applied Water Science |
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| Online Access: | http://link.springer.com/article/10.1007/s13201-017-0597-2 |
| _version_ | 1828431511334944768 |
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| author | Bouchrit Rouissat N. Smail S. Zenagui |
| author_facet | Bouchrit Rouissat N. Smail S. Zenagui |
| author_sort | Bouchrit Rouissat |
| collection | DOAJ |
| description | Abstract In recent years, and under constraints caused by persistent drought, Algeria has launched a new mobilization strategy for surface water resources from small and medium dams. However, by making a review of the studies and achievements of twenty small dams in the west of Algeria, some deficiencies appeared. In addition to reservoir siltation assessment, operation spillways have been the major constraint on the reliability of these types of dams. The objective of this paper is to use the roller compacted concrete (RCC) for small dams’ design for the benefit it offers and its ability to incorporate spillways. The development of this reflection was applied to the Khneg Azir earth dam situated in southwest of Algeria. Its uncontrolled lateral spillway has registered significant damage following the flood of October 2005, amounted, at that time, to more than 100 million Algerian dinars (1 million US Dollars). The present research encompasses a technical and economical comparative analysis concerning multiple criteria dam design types coupled with the conjugation of the spillways. Thus, on the basis of financial estimates calculated for all design types, the variant RCC remains competitive with that of the earth dam’s spillway isolated (Less than 40% of the cost). To assess the mechanical behavior of the foundations for both types of dams, (earth and RCC dams), numerical modeling has been undertaken, according to the comparative analysis of deformations in the foundations. Analysis of deformations showed that the average foundation deformations was between (0.052–0.85) m for earth dam and (0.023–0.373) m for RCC dam. These economical and technical considerations open up important prospects for the use of RCC in the design of small dams. |
| first_indexed | 2024-12-10T18:04:19Z |
| format | Article |
| id | doaj.art-a61173298ec64ef2a6b4f3a7837b96c4 |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-12-10T18:04:19Z |
| publishDate | 2017-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-a61173298ec64ef2a6b4f3a7837b96c42022-12-22T01:38:39ZengSpringerOpenApplied Water Science2190-54872190-54952017-07-01784777478410.1007/s13201-017-0597-2Importance of using roller compacted concrete in techno-economic investigation and design of small damsBouchrit Rouissat0N. Smail1S. Zenagui2RISAM Laboratory, Faculty of Technology, University of TlemcenRISAM Laboratory, Faculty of Technology, University of TlemcenRISAM Laboratory, Faculty of Technology, University of TlemcenAbstract In recent years, and under constraints caused by persistent drought, Algeria has launched a new mobilization strategy for surface water resources from small and medium dams. However, by making a review of the studies and achievements of twenty small dams in the west of Algeria, some deficiencies appeared. In addition to reservoir siltation assessment, operation spillways have been the major constraint on the reliability of these types of dams. The objective of this paper is to use the roller compacted concrete (RCC) for small dams’ design for the benefit it offers and its ability to incorporate spillways. The development of this reflection was applied to the Khneg Azir earth dam situated in southwest of Algeria. Its uncontrolled lateral spillway has registered significant damage following the flood of October 2005, amounted, at that time, to more than 100 million Algerian dinars (1 million US Dollars). The present research encompasses a technical and economical comparative analysis concerning multiple criteria dam design types coupled with the conjugation of the spillways. Thus, on the basis of financial estimates calculated for all design types, the variant RCC remains competitive with that of the earth dam’s spillway isolated (Less than 40% of the cost). To assess the mechanical behavior of the foundations for both types of dams, (earth and RCC dams), numerical modeling has been undertaken, according to the comparative analysis of deformations in the foundations. Analysis of deformations showed that the average foundation deformations was between (0.052–0.85) m for earth dam and (0.023–0.373) m for RCC dam. These economical and technical considerations open up important prospects for the use of RCC in the design of small dams.http://link.springer.com/article/10.1007/s13201-017-0597-2Earth damRCC damFrontal spillwayLateral spillwayDeformations |
| spellingShingle | Bouchrit Rouissat N. Smail S. Zenagui Importance of using roller compacted concrete in techno-economic investigation and design of small dams Applied Water Science Earth dam RCC dam Frontal spillway Lateral spillway Deformations |
| title | Importance of using roller compacted concrete in techno-economic investigation and design of small dams |
| title_full | Importance of using roller compacted concrete in techno-economic investigation and design of small dams |
| title_fullStr | Importance of using roller compacted concrete in techno-economic investigation and design of small dams |
| title_full_unstemmed | Importance of using roller compacted concrete in techno-economic investigation and design of small dams |
| title_short | Importance of using roller compacted concrete in techno-economic investigation and design of small dams |
| title_sort | importance of using roller compacted concrete in techno economic investigation and design of small dams |
| topic | Earth dam RCC dam Frontal spillway Lateral spillway Deformations |
| url | http://link.springer.com/article/10.1007/s13201-017-0597-2 |
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