Developmental Mechanism of Rainfall-Induced Ground Fissures in the Kenya Rift Valley

Active tectonic movement and frequent ground fissure disasters occur in the Kenya Rift Valley. Ground fissures are often exposed to surface after rainfall, resulting huge economic losses. We conducted a field geological survey exploratory trenching order identify developmental characteristics of The were found be connected with concealed bedrock fissures, which is typical characteristic fissures. From perspective regional stress plate movement, we investigated causes hidden cracks finite element numerical simulation study rainfall infiltration process presence fractures. results showed that fractures controlled by northwest-trending basement shear zone. most intense erosion occurs cracks, where settlement induced also greatest. Therefore, an important factor driving expansion towards this provide theoretical scientific basis for disaster reduction prevention