COMPARISON OF CONVEYANCE EFFICIENCY IN UNLINED AND LINED WITH CONCRETE AND STONE IRRIGATION CANALS (CASE STUDY: HAMEDAN-BAHAR PLAIN)

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BAHRAMLOU R.

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Journal: AGRICULTURAL RESEARCH Year:2007 | Volume:7 | Issue:2 Page(s): 67-77

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Title

COMPARISON OF CONVEYANCE EFFICIENCY IN UNLINED AND LINED WITH CONCRETE AND STONE IRRIGATION CANALS (CASE STUDY: HAMEDAN-BAHAR PLAIN)

Author(s)

BAHRAMLOU R. | Issue Writer Certificate

Keywords

EVALUATIONQ3

CONCRETE LININGQ3

STONE LININGQ3

CONVEYANCE EFFICIENCYQ3

IRRIGATION CANALSQ3

COMPRESSIVE STRENGTHQ3

Abstract

Based on the division of international institutes, Iran is confronting with water Crisis.Agricultural sector uses more than 93 percent of supplied water in country. One of the best method to control water losses is increase of CONVEYANCE EFFICIENCY (Ec) by linings of IRRIGATION CANALS with suitable construction materials according to local conditions. Different linings have various durability and CONVEYANCE EFFICIENCY under climatic and subsoil conditions. Therefore, the EVALUATION of different lining is necessary in various areas for the best selection. In this research, CONVEYANCE EFFICIENCY have been evaluated in customary lining of concrete and local lining of stone and unlined small IRRIGATION CANALS in Hamedan- Bahar plain for two years. For this main 12 cases of lined and unlined IRRIGATION CANALS were randomly selected to evaluatio in different points of this plain. The CONVEYANCE EFFICIENCY was measured in initial, medium and the end stages of growth in two year. Durability cndition of CONCRETE LININGs that had been cracked was studied by coring of eight samples. According to the results, value of CONVEYANCE EFFICIENCY in lining of stone was 94.4% that with 5% probablity is more than that in lining of concrete (71.1 %) and unlined canals (66.6%). The mean COMPRESSIVE STRENGTH of eight cores was 61 kg/cm2 that is very less than its standard value. Because of low COMPRESSIVE STRENGTH, the CONCRETE LINING does not have suitable durability in cold climate of this area, so in most canals, it has been cracked and destructed that lead to very low value of ec. Based on range test, the values of EC in concrete lined and unlined canals with 1% probablity, have not significiant difference.

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APA: Copy

BAHRAMLOU, R.. (2007). COMPARISON OF CONVEYANCE EFFICIENCY IN UNLINED AND LINED WITH CONCRETE AND STONE IRRIGATION CANALS (CASE STUDY: HAMEDAN-BAHAR PLAIN). AGRICULTURAL RESEARCH, 7(2), 67-77. SID. https://sid.ir/paper/84698/en

Vancouver: Copy

BAHRAMLOU R.. COMPARISON OF CONVEYANCE EFFICIENCY IN UNLINED AND LINED WITH CONCRETE AND STONE IRRIGATION CANALS (CASE STUDY: HAMEDAN-BAHAR PLAIN). AGRICULTURAL RESEARCH[Internet]. 2007;7(2):67-77. Available from: https://sid.ir/paper/84698/en

IEEE: Copy

R. BAHRAMLOU, “COMPARISON OF CONVEYANCE EFFICIENCY IN UNLINED AND LINED WITH CONCRETE AND STONE IRRIGATION CANALS (CASE STUDY: HAMEDAN-BAHAR PLAIN),” AGRICULTURAL RESEARCH, vol. 7, no. 2, pp. 67–77, 2007, [Online]. Available: https://sid.ir/paper/84698/en

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