【摘要】 元氏县佃户营是河北省太行山区主要泥石流地质灾害频发区,在现场勘察调查的基础上,对元氏县佃户营泥石流的成因进行了详细的研究,研究表明:元氏县佃户营泥石流形成的物源条件、降雨条件和地势条件均满足泥石流的形成条件,且形成条件充分。在前人研究的基础上,对元氏县佃户营的降雨条件加以分析和研究,从降雨方面给出该泥石流发生的概率。对该泥石流沟的物源及该泥石流发生后的残留物质做颗粒试验,通过实验结合前人的研究成果,从颗粒级配方面,给出了该泥石流的发生概率。更多还原

【Abstract】 The Taihang Mountain,Yuanshi County,Hebei Province,is the primary area where debris flow always occurs.Based on the survey at the debris flow site,the formation conditions of debris flow were evaluated.Results showed that the material factor,rainfall factor,and physical features satisfied the formation conditions of debris flow in the valley.The formation conditions are sufficient.The authors analyzed and studied rainfall and its relations with the occurrence of this debris flow on the basis of previous studies.The occurrence probability of this debris flow was worked out from rainfall.A kernel experiment on the provenance of this debris flow ditch and its leftover was made.The occurrence probability of this debris flow is worked out from kernel experimentation and previous research.更多还原