Geotechnical properties for sediment of Tigris River reach banks within Tikrit town/ Iraq

Badowi, None Maha Shaher; Abood, None Mohammad Rashid; Saleh, Sabbar Abdullah

doi:10.25130/j.v24i6.889

Cited by 3 publications

(3 citation statements)

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“…The test was carried out in the department of applied geology / college of science / university of Kirkuk, based on the specification [24], six samples of gravel, which are irregular in shape, were taken for each sample with different dimensions. Each sample was placed between the two loading points, then the device is managed manually until the collapse and failure of the sample.…”

Section: -6 Point Load Testmentioning

confidence: 99%

Suitability of the Lower Zab River Sediments for Concrete Works / Southwest of Kirkuk - Northern Iraq

Hassan¹,

Abood²,

Kadhim³

2023

Tikrit J. Pure Sci.

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An Engineering study was carried out for five stations in the Lower Zab basin, southwest of Kirkuk, to determine the viability of the Quaternary age sediments for concrete works. The geotechnical evaluation results included that the coarse aggregate's grain size analysis is identical to the gradient class (63.0 mm) according to the [1] classification. As for the gradation of fine aggregate for the sediments of the study area, the results of the granular gradient of the samples after matching them with the limits of AASHTO specification showed that they are identical to the specification with slight differences on some sieves. The elongation and flatness tests showed that the highest percentage of the longitudinal shape is (19.2%) and flat-shaped particles is (28.8%), within permissible limits according to British standard [2], the specific gravity for coarse aggregate was between (2.60 - 2.64) and saturated specific gravity (2.61 - 2.65), and the values of specific weight for fine soil ranged from (2.72 - 2.64) which is suitable for use in concrete works. The results of the laboratory test of the durability tests - The Los Angeles test for the samples showed that the highest percentage for weight loss was (20%), which is suitable for use in the concrete according to the Iraqi standard [3], the results of the laboratory test for stability showed that the percentage of weight loss for coarse aggregate (gravel) by the effect of sodium sulfate solution and for the number of 5 cycles of the samples ranged between (8.3% - 4.1%), which is valid for use in concrete works according to the American specification [4]. The results of the resistance tests - the point load test for stations (S1, S3, S4) within the classification range of very strong - extremely strong, and the two stations (S2, S5) within the class strong - very strong - extremely strong compared to the classification of [5], and they are good for concrete works. It was found from the results of the chemical tests the gypsum content, organic matter content, Total soluble salts, and the sulfate content of the samples of the study area are suitable to for concrete works according to British Standard [6], which is suitable for concrete works, testing the compressive strength of concrete cubes ranged between (24.93 - 18.22 MPa) for age seven days and ranged between (33.02 - 29.76 MPa) for 28 days for reference mixture, Which is (4:2:1 by weight). According to the Iraqi standard specification [7], the compressive strength values of the samples are suitable for regular unreinforced concrete, and in comparison with [8] classification, it was apparent that the concrete produced is of moderate endurance. And suitable for concrete works According to [9].

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Section: -6 Point Load Testmentioning

confidence: 99%

Suitability of the Lower Zab River Sediments for Concrete Works / Southwest of Kirkuk - Northern Iraq

Hassan¹,

Abood²,

Kadhim³

2023

Tikrit J. Pure Sci.

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“…Injana Formation is covered by quaternary deposits (Pleistocene and Holocene) represented by river terraces deposits which consist of sandstone and sand, and flood plain deposits which consist of gravel, sand, silt and clay [9]. Baiji soil is derived from erosion of exposed sedimentary rocks within the region, especially the rocks of the Makhoul mountain range, the most important of which are the rocks from Miocene epoch, represented by gypsum, limestone and mud rocks of Fatha Formation and sandstones and mud rocks of Injana Formation [10].…”

Section: Geology Of Study Areamentioning

confidence: 99%

Investigating Impact of Industrial and Agricultural Activities on Surface Soil Contamination Using Pollution Indices, North Baiji City, Salah Alden Governorate, Iraq

Abed¹

2020

Tikrit J. Pure Sci.

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A total of 18 surface soil samples were collected from surrounding of industrial district at north Baiji town, and the concentration of seven trace elements (i.e. Cu, Pb, Zn, Ni, As, Cd and Cr) were analyzed. The geo-accumulation index, pollution index, Nemerow pollution index, ecological risk factor and potential ecological risk index were utilized to assess soil contamination by trace elements. The mean values of geo-accumulation index showed that the study area soils are ranged from moderate to heavy contamination by Ni and slight contamination by As, Cd and Cr and uncontaminated by Zn, Pb and Cu. According to categories of pollution index, the surface soil of study area considers strongly polluted by Ni, moderately polluted by Cr and non-polluted by Cu, Zn, As, Pb and Cd. The Nemerow pollution index values of study area showed 11% of sites are slightly polluted, 17% of sites are moderately polluted and 72% of sites are seriously polluted. According to Eco- risk factor for an individual metal, the values showed moderate to considerable ecological risk by Cd, low to moderate ecological risk by Ni and low ecological risk for Cu, Zn, As, Pb and Cr. For Eco-risk index for metals, the results also showed that 27.8% of sites are low potential ecological risk and 72.2% of sites are moderate potential ecological risk

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“…Othman and Deguan (2004) [13] conducted field and laboratory investigations for the characteristics of the Tigris River bed material downstream of Mosel Dam. Thereafter, Badowi et al (2019) [36] investigated the physical and chemical characteristics of bed sediment for the flood plain of the Tigris River within Tikrit City. Also, Al-Ansari et al (2015) [16] investigated the bed material of the Tigris River along a reach of 18 km within Baghdad City.…”

Section: Introductionmentioning

confidence: 99%

Field and Satellite Images-Based Investigation of Rivers Morphological Aspects

2022

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Worldwide and especially in less developed regions, process-based evaluations and/or geomorphological information on large-scale rivers are still scarce. Such investigation become of ‎urgent ‎need due to the climate change and expected occurrence of extreme floods and drought which ‎may ‎threaten the safety of nearby and downstream cities, especially in regions that are highly sensitive and ‎affected by climatic changes. The Tigris River, in Iraq, is one such river that has undergone significant alteration to its flow and morphologic aspects due to climate change and the construction of many dams. However, morphology and its change for many reaches of this river are still uninvestigated. To this end, field and satellite-based investigations into the morphology of a reach located between Makhool District and Tikrit City have been conducted. In addition to the cross-sectional survey-based determination of the reach geometrical aspects, a sinuosity indices-based evaluation of the reach planform was implemented, utilizing a satellite indices-based approach. Furthermore, the characteristics of bed material were identified through field sampling. Investigation results show that the reach has a steep bed slope and many islands of low altitude with an elongated shape. The reach has a mild sinuosity with alternating bars. The dominant particle sizes of the bed material are coarse and medium gravel with a dominant particle shape of disc particles. Moreover, the satellite-based change detection indicated the fading out and disappearance of some secondary channels, the growth of many islands, and the movement of some bends downstream. The percentage of changing parts for the period 1975–2021 is 14%. Most of this change, 11%, occurred after the construction of the Mosul Dam. This reveals the sensitivity of reach morphology to flow change due to the construction of dams. The conducted fieldwork and the applied methodology contribute to supporting efforts to add knowledge worldwide about uninvestigated rivers. Doi: 10.28991/CEJ-2022-08-07-03 Full Text: PDF

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Geotechnical properties for sediment of Tigris River reach banks within Tikrit town/ Iraq

Cited by 3 publications

References 0 publications

Suitability of the Lower Zab River Sediments for Concrete Works / Southwest of Kirkuk - Northern Iraq

Suitability of the Lower Zab River Sediments for Concrete Works / Southwest of Kirkuk - Northern Iraq

Investigating Impact of Industrial and Agricultural Activities on Surface Soil Contamination Using Pollution Indices, North Baiji City, Salah Alden Governorate, Iraq

Field and Satellite Images-Based Investigation of Rivers Morphological Aspects

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