We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Generalized Model of the Cracks in the Expansive Soil and the Slope Stability Based on the Long-Distance Optical Microscope System.
- Authors
Shufeng Zhou; Yigai Xiao; Enxiang Song
- Abstract
The engineering problem of expansive soil is one of the most complex worldwide problems in the field of engineering geology today. Multi-fracture is a typical characteristic of expansive soil. The fissure structure composed of multiple fissures produces complex physical and mechanical effects. The existence of fissures destroys the integrity of the soil. At the same time, the fissures have a non-uniform distribution and a certain tendency, so that the strength characteristics of the expansive soil are also strongly anisotropic, which leads to the expansion of the soil slope the instability mechanism is very complicated. Therefore, it is of great academic value and practical significance to study the fissure characteristics of expansive soil and its impact on slope stability. This paper mainly studies the generalized model of cracks and slope stability of expansive soil based on the remote optical microscope system. The research results in this paper show that the fissures mainly develop below the surface 3-7 m. Among them, large fissures with an extension length of 0.5-2.0 m develop a large number in the depth range of 3-7 m, and long fissures with an extension length greater than 2.0 m are at depth. There are many developments in the range of 8-12m; from the perspective of the inclination of the fissures, most of them are slow-inclined (≤30°) and medium-inclination (30-60°) fissures, and steep dip (≥60°) fissures are rare and follow As the burial depth increases, the slow dip angle cracks gradually increase, and the medium and steep dip angles gradually decrease. The research results in this paper show that the limit equilibrium calculation method based on considering the spatial distribution of cracks can accurately reflect the engineering reality.
- Publication
Acta Microscopica, 2020, Vol 29, Issue 6, p3190
- ISSN
0798-4545
- Publication type
Academic Journal