Degradation mechanism of limestone and time-varying pile capacity assessment in bank slopes under dynamic erosion of CO2 solution DOI

Wushu Dong,

Ze Li, Li-Min Zhang

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(1)

Опубликована: Янв. 1, 2025

The dynamic erosion effect of the corrosive medium formed by aqueous solution and CO2 gas on rock will lead to decline mechanical properties seriously threaten long-term stability durability mass in reservoir area. In this paper, a test method is proposed study deterioration rock, based gas–liquid cycle. A total 210 limestone samples were tested under various cycles (0, 5, 10, 15, 20, 25, 30 cycles). systematic analysis key physical related degradation behavior (Young's modulus, uniaxial compressive strength, tensile shear cohesion, internal friction angle) was performed. Additionally, changes dissipated energy, fractal dimension, micro-pore evolution during process examined. results indicate that with increase cycles, parameters gradually decreased, while both proportion energy dimension fragmentation increased nonlinearly 29.58% decreased 9.95%, respectively. porosity from 0.04% 6.89%, their multifractal spectrum shifted right, indicating development pores microscopic structural stability. Finally, limit for time-varying bearing capacity pile foundation established analyze characteristics rock.

Язык: Английский

Degradation mechanism of limestone and time-varying pile capacity assessment in bank slopes under dynamic erosion of CO2 solution DOI

Wushu Dong,

Ze Li, Li-Min Zhang

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(1)

Опубликована: Янв. 1, 2025

The dynamic erosion effect of the corrosive medium formed by aqueous solution and CO2 gas on rock will lead to decline mechanical properties seriously threaten long-term stability durability mass in reservoir area. In this paper, a test method is proposed study deterioration rock, based gas–liquid cycle. A total 210 limestone samples were tested under various cycles (0, 5, 10, 15, 20, 25, 30 cycles). systematic analysis key physical related degradation behavior (Young's modulus, uniaxial compressive strength, tensile shear cohesion, internal friction angle) was performed. Additionally, changes dissipated energy, fractal dimension, micro-pore evolution during process examined. results indicate that with increase cycles, parameters gradually decreased, while both proportion energy dimension fragmentation increased nonlinearly 29.58% decreased 9.95%, respectively. porosity from 0.04% 6.89%, their multifractal spectrum shifted right, indicating development pores microscopic structural stability. Finally, limit for time-varying bearing capacity pile foundation established analyze characteristics rock.

Язык: Английский

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