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七盘沟是一条多发性大型泥石流沟,“5·12”地震后沟内发生多处崩塌、滑坡和堰塞体,其固体物源丰富,参与泥石流活动的动储量巨大,在遇较强降雨条件下极易发生泥石流。经对该地区地质灾害影响因素调查,并对泥石流特征值进行分析和验算,本文提出了综合治理措施,可有效降低该地区发生泥石流灾害,减少其危害性。
Qipan ditch is a large multi-purpose large debris flow ditch. After the May 12 earthquake, multiple collapses, landslides and weirs have occurred in the ditch. Because of its rich source of solids and huge reserves for debris flow activities, Debris flow prone to strong rainfall conditions. After investigating the influencing factors of the geological disasters in the area and analyzing and checking the debris flow eigenvalues, the paper puts forward the comprehensive control measures to effectively reduce the landslide hazard and reduce the harm of the debris flow in the area.