红层泥岩边坡快速风化特性研究

红层泥岩边坡的快速风化是一个普遍存在而又未完全解决好的问题。选择典型工点，对红层泥岩边坡的快速风化进行原位监测试验，结果表明：红层泥岩边坡的快速风化是从表面向内进行的，且集中在表层10cm的深度内，气温的变化和降雨对泥岩边坡表层的快速风化有重要的影响。对泥岩岩块进行长时间的风化崩解试验，结果也证实日气温和含水量基本恒定时泥岩岩块的风化速度缓慢。采用泥岩岩块温度变化试验和有限元分析方法得出：红层泥岩表层处于高温状态时的降雨是其快速风化剥落的主要外因，这为红层泥岩边坡的生态治理提供了理论依据。

STUDY ON FAST WEATHERING CHARACTERISTICS OF RED BED MUDSTONE SLOPE

The fast weathering universally takes place in red bed mudstone slope,which is not completely solved till now.By selecting the typical red bed mudstone slope and monitoring its fast weathering in the field,it is shown that the fast weathering of the red bed mudstone slope is from surface to inside and mainly appears within 10 cm in depth below the surface,and that the variation of air temperature and rainfall has important affects on the fast weathering of the red bed mudstone slope.According to the mudstone block weathering experimentsi,t is also confirmed that the block weathering is very slow in the condition of unchangeable daily air temperature and moisture content.Based on the mudstone block temperature variation experiments and the finite element analysis,it is concluded that the main external factor affecting the red bed slope fast weathering is the rainfall in the high temperature state;and it offers a theoretical foundation for the ecological protection of the red bed mudstone slope.