红层泥岩边坡快速风化规律

为向红层泥岩边坡治理提供依据，选择典型工点，对红层泥岩边坡快速风化进行了原位监测试验，并对泥岩试样温度变化进行了实验室试验和有限元分析．结果表明：红层泥岩边坡的快速风化集中在表层10cm深度内；气温变化和中雨以上降雨次数对快速风化有重要影响——气温高、温差大时，风化速率增大；降雨次数增多，风化量也增大．高温季节，降雨使红层泥岩表层和内部出现大的温差是其快速风化剥落的主要外因．

Fast Weathering Law of Red-Bed Mudstone Slope

To provide a theoretical reference for the protection of red-bed mudstone slopes, a typical red-bed mudstone slope was monitored in the field. In addition, the laboratory experiment and finite element analysis of changes in temperature of mudstone specimens were conducted. The research result shows that the fast weathering of the red-bed mudstone slope occurs within 10 cm depth below the surface, and the variation of air temperature and the number of moderate rainfall have important effects on its fast weathering. The weathering rate increases with the heightening of air temperature and its difference, and the weathering deposits increase with the increment of the number of moderate rainfall. Furthermore, a big air temperature difference between the surface and inside of red-bed mudstone caused by rainfall is the key external factor affecting the fast weathering.