Scholarlink

<p>The construction industry in Tabriz, East Azerbaijan Province (Iran), is rapidly expanding, particularly in the eastern areas, making it essential to understand the parameters governing the mechanical behavior of local soft marly rocks in engineering geology. This study aims to assess the relative importance of mineralogy and rock texture in controlling the mechanical behavior of soft marly rocks. Nine samples were collected from the eastern region of Tabriz. Thin-section analyses were performed, and mineralogical coefficients (MC) and texture coefficients (TC) were calculated using JMicroVision 1.2.7 and Excel 2019. Mechanical properties, including uniaxial compressive strength (UCS), shear strength (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:\tau\:\)</EquationSource> </InlineEquation>), and physical indices such as Atterberg limits (LL/PI), dry density (γ<sub>d</sub>), water content (ω), porosity (n), and durability index (Id<sub>2</sub>), were determined for all samples. Univariate regression and coefficient of determination analyses revealed that regression models based on TC exhibited better predictive performance than those based on MC, as indicated by higher determination coefficient (R²). The determination coefficients between TC and adhesion, elastic modulus (E), internal friction angle (<InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\:\phi\:\)</EquationSource> </InlineEquation>), UCS, dry density, and durability index were 0.93, 0.91, 0.90, 0.86, 0.74, and 0.70, respectively, with porosity showing the lowest correlation (R² = 0.52). In contrast, for MC, the corresponding values were 0.60, 0.70, 0.90, 0.65, 0.43, and 0.98, with porosity showing the highest correlation (R² = 0.93). These findings highlight the importance of microscopic properties in understanding rock mechanical behavior and demonstrate that microstructural analysis can serve as a valuable tool in evaluating the engineering properties of soft marly rocks.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigating the textural characteristics and engineering properties of Marly rocks in the Tabriz region, East Azerbaijan (NW Iran)

  • 期刊论文

  • 发表日期：

    2026年2月10日

查看全文
  • Ghodrat Barzegari,
  • Nazila Dadashzadeh,
  • Reza Ranjbar Binazir

摘要

The construction industry in Tabriz, East Azerbaijan Province (Iran), is rapidly expanding, particularly in the eastern areas, making it essential to understand the parameters governing the mechanical behavior of local soft marly rocks in engineering geology. This study aims to assess the relative importance of mineralogy and rock texture in controlling the mechanical behavior of soft marly rocks. Nine samples were collected from the eastern region of Tabriz. Thin-section analyses were performed, and mineralogical coefficients (MC) and texture coefficients (TC) were calculated using JMicroVision 1.2.7 and Excel 2019. Mechanical properties, including uniaxial compressive strength (UCS), shear strength ( \(\:\tau\:\) ), and physical indices such as Atterberg limits (LL/PI), dry density (γd), water content (ω), porosity (n), and durability index (Id2), were determined for all samples. Univariate regression and coefficient of determination analyses revealed that regression models based on TC exhibited better predictive performance than those based on MC, as indicated by higher determination coefficient (R²). The determination coefficients between TC and adhesion, elastic modulus (E), internal friction angle ( \(\:\phi\:\) ), UCS, dry density, and durability index were 0.93, 0.91, 0.90, 0.86, 0.74, and 0.70, respectively, with porosity showing the lowest correlation (R² = 0.52). In contrast, for MC, the corresponding values were 0.60, 0.70, 0.90, 0.65, 0.43, and 0.98, with porosity showing the highest correlation (R² = 0.93). These findings highlight the importance of microscopic properties in understanding rock mechanical behavior and demonstrate that microstructural analysis can serve as a valuable tool in evaluating the engineering properties of soft marly rocks.