Evolution of disintegration breakage of upper cretaceous red-bed mudstone in an acidic environment based on the Weibull model

Characteristics of Water Disintegration and Fractal Mechanism of Red Sandstone in Northwest China

“…Zhao et al [42] first classified red sandstone into three categories according to the water immersion test: Type I, Type II and Type III red sandstone, among which Type I red sandstone has the strongest disintegration, and the most research value is to carry out disintegration inhibition test for it. Subsequently, they carried out disintegration test by simulating the state of disintegration of red sandstone under the natural conditions, analyzed and counted the particle size distribution of disintegrated particles, and combined with the construction of the roadbed project in the actual project, calculated the fractal dimension of disintegration tending to be stable [19,38]. Liu et al [15,16] through the disintegration test of soft rock, that the disintegration of soft rock is a multiple fractal process, the introduction of fractal theory to get a quantitative description of the disintegration process of the red layer soft rock fractional dimensional indexes, the establishment of a mathematical model to simulate the disintegration of the red layer soft rock, and also pointed out that the nature of the red layer material is stable after the complete disintegration of the red layer, the treatment of the red sandstone in the actual engineering of a good reference.…”