Assessment of Geotechnical Properties of Al-Fatha Formation in Zurbatiyah Region Eastern Iraq

IF 1.3 4区工程技术 Q3 CHEMISTRY, ORGANIC Petroleum Chemistry Pub Date : 2024-10-16 DOI:10.1134/S0965544124060045

Farah A. Abdulhussein, Amjad I. Fadhil, Samar S. Hussein

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Abstract

A series of experimental tests were carried out to study and assessment of the geotechnical properties of the Fatha formation rocks in the Zurbatiyah region in eastern Iraq, the physical and mechanical characteristics have been studied in the study area of two types of rocks are represented by gypsum and limestone rocks. The physical results and tests helped to explain the mechanical behavior of the rock specimens that were studied. Several destructive and non-destructive tests were conducted on rock samples collected from various zones. Uniaxial compressive strength, point load, and Brazilian tests were tested on 60 intact rock specimens. The results of uniaxial compressive strength show that the maximum value of the compressive strength of the gypsum specimens was 35.08 MPa, while the maximum value in limestone specimens, was 38.095 MPa. In the indirect point load test, the maximum point load strength index I_S(50) was 2.810 and 6.428 MPa for gypsum and limestone rock specimens respectively. In the indirect Brazilian test, the maximum tensile strength (σ_t) values were 4.66 and 7.36 MPa for gypsum and limestone rock specimens respectively. A new correlation with a high value of the regression coefficient R² is presented, linking the uniaxial compressive strength (UCS) versus the rebound number of the Schmidt hammer (N).

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伊拉克东部祖尔巴提亚地区 Al-Fatha 地层岩土特性评估

为研究和评估伊拉克东部祖尔巴提亚地区法塔地层岩石的岩土特性，对研究区内以石膏岩和石灰岩为代表的两类岩石的物理和机械特性进行了一系列实验测试。物理结果和测试有助于解释所研究岩石样本的机械行为。对从不同区域采集的岩石样本进行了多项破坏性和非破坏性测试。对 60 块完整的岩石样本进行了单轴抗压强度、点荷载和巴西试验。单轴抗压强度结果显示，石膏试样的抗压强度最大值为 35.08 兆帕，而石灰岩试样的最大值为 38.095 兆帕。在间接点荷载试验中，石膏和石灰岩试样的最大点荷载强度指数 IS(50) 分别为 2.810 和 6.428 兆帕。在巴西间接试验中，石膏和石灰岩试样的最大抗拉强度（σt）值分别为 4.66 和 7.36 兆帕。单轴抗压强度（UCS）与施密特锤回弹次数（N）之间存在一种新的相关关系，其回归系数 R2 值很高。

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来源期刊

Petroleum Chemistry 工程技术-工程：化工

CiteScore

2.50

自引率

21.40%

发文量

102

审稿时长

6-12 weeks

期刊介绍： Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas. Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.