贵州省冲门口泥石流区治理效果研究

Study of controlling effect in Chongmenkou debris flow area of Guizhou Province

为研究贵州省毕节市冲门口泥石流区泥石流综合治理工程的防治效果,于2013~2016年间对该泥石流沟的治理效果进行了为期4 a的动态监测,主要监测内容为不良地质现象的发生情况、松散固体物质储量、大规模泥石流发生情况和泥石流易发性评判等。结果表明:冲门口泥石流沟的不良地质情况发生次数、松散固体物质储量和泥石流松散固体物质储量皆呈明显下降趋势。措施实施后,域内没有再次发生大规模泥石流灾害事件;泥石流易发性由中等易发,到2013年变为轻度易发,2016年进入相对不易发生。综合分析认为,2012年设计实施的冲门口泥石流综合治理工程达到了预期的治理效果,各项措施稳定有效,保障了当地人民群众的生命财产安全,能够为今后同等地区泥石流灾害的措施设计和治理工程提供参考和指导作用。

In order to study the control effect of comprehensive treatmeet project in Chongmenkou debris flow area , Bijie City ,Guizhou Province , a four - year dynamic monitoring study was conducted regarding the controlling effect on tween 2013 and 2016. The study involvvs the advvrse geological phenomena , loose solid mass reserves , the debris flow , and susceptibility assessment of debris flow etc. The results show that phenomena , loose solid mass reserves and mass reserves of debris flow had experienced a significant downward trend. Due to the treatment , no massive debris flow occurred in the area; the susceptibility to debris flow was moderated initially , less in 2013 and finally slight in 2016. Through comprehensive analysis , the treatment project reaches an expected controlliare stable and effective , which effectively safeguard the lives and property of local people , and providerelated projects.