【摘要】 对中国黄土山城“依山造居”的几个灾害问题（如黄土层地震反应、黄土滑坡、黄土沉陷、黄土泥流等）进行了分析。在此仅讨论黄土泥流问题，阐述了黄土泥流的分布特征；在大量调查与实验资料的基础上，分析了黄土泥流的形成条件；提出了一种黄土泥流蠕、滑动液化机理；推导出了伴随滑坡的黄土泥流速度公式；最后提出了黄土泥流的防治措施。更多还原

【Abstract】 Some natural disasters are discussed here, which include loess seismic response, landslide, settlement and mud flow in city building along loess mountain in China, such as the cities of Lanzhou, Xining, Baoji, Tianshui, Yan′an, etc. Based on the reference 1, 2 and 3, the loess mud flow is studied. According to a large number of information of field investigation and loess mechanic test in loess plateau, the distributed charactoristics and formed condition are analyzed. At the same time, a sort of mechanism of loess mud flow is submitted. That is saturated loess creeping and sliding liquefaction. The velocity of loess mud flow caused by liquefaction typical landslide is studied. Finally, a countermeasure model of mud flow is proposed.更多还原