【摘要】 运用实地调查方法和统计分析方法研究不同影响因子对云南公路水毁时空分布规律的宏观控制机理。研究表明,月降雨量和强降雨日的月分布概率是云南公路水毁时间分布的主控因子,地形地貌、水系、植被盖度、多尺度构造、地层岩性和新构造应力场使云南公路水毁广泛分布但又相对集中,中(间)尺度天气系统才是约束云南公路水毁空间分布的主要天气系统。更多还原

【Abstract】 Macroscopic restraint mechanism of spatial-temporal distribution of highway washout in Yunnan province is analyzed by methods of field investigation and statistical analysis.Results show that the main controlling factors of temporal distribution of highway washout in Yunnan province are monthly rainfall and probability of monthly distribution of heavy rain days;landform and physiognomy,water system,vegetation coverage,multiple scale structures,formation lithology and the new tectonic stress field have made distribution of highway washout wide and relatively concentrated;the main climatic conditions that constrain spatial distribution of highway washout in Yunnan is the middle(inter)-scale weather systems.更多还原