Studying effective factors on stability and sedimentation of woven-wire check dams within marly areas, case study: oIdeloo Watershed, Zanjan

In this research, some effective factors on stability and sedimentation of woven-wire check dams within marly areas were studied. For this pupose, data of 380 light-weight metallic dams were collected during field study and Pearson correlation coefficients and regression analysis of variance of SPSS statistical software were used in analysis procedures. The results showed that there were significant relation between width, length and volume of dams with stability at confidence level of 99% and according to correlation coefficients, width of dam showed a higher correlation in comparison to two other variables, but length of dam holds the second place. On this respect, dimensions of dams were among the effective factors on their stability. The stability of dams also represents an inversely linear relationship (correlation coefficient of 0.24) with volume of sediment accumulated behind them. The link between length and width to volume of accumulated sediment favors a direct linear relationship, and based on their correlation coefficients (0.69 and 0.23 respectively) the impact of length of dams is greater. In general, to reach a desired stability of these dams, their dimension must be in accordance with standards and must be determined using respective equations.