海南昌江县红林农场26队泥石流发育特征及成因分析
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摘要
以昌江县红林农场26队泥石流沟为研究对象,泥石流沟发育特征及分析其泥石流形成条件,并对其危险性进行评价。结果表明:红林农场26队泥石流沟的地形条件、沟床比降和汇水面积等构成了泥石流沟发育的先天条件,泥石流沟上部的松散堆积物和破面崩滑物为泥石流的启动提供了物源,前期的强台风和短时间的强降雨天气诱发和启动了泥石流的爆发。
Taking the debris flow gully of team 26 in Honglin Farm of Changjiang county as the research object, the development characteristics of debris flow gully and the formation conditions of debris flow were analyzed, and the risk of debris flow gully was evaluated. The results show that the terrain conditions, bed ratio drop and catchment area of debris flow gully in team 26 of Honglin Farm constitute the innate conditions for debris flow gully development. Loose deposits and broken surface debris provide the material source for debris flow initiation. The strong typhoon and short-term heavy rainfall induced and initiated debris flow eruption in the early stage.
Taking the debris flow gully of team 26 in Honglin Farm of Changjiang county as the research object, the development characteristics of debris flow gully and the formation conditions of debris flow were analyzed, and the risk of debris flow gully was evaluated. The results show that the terrain conditions, bed ratio drop and catchment area of debris flow gully in team 26 of Honglin Farm constitute the innate conditions for debris flow gully development. Loose deposits and broken surface debris provide the material source for debris flow initiation. The strong typhoon and short-term heavy rainfall induced and initiated debris flow eruption in the early stage.
引文
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[2] 陈晓清.泥石流综合防治及防治工程信息系统[C].成都:西南交通大学,2002:25-30.
[3] 李信,许东翰,莫壮友.海南省地质调查院,海南省昌江县1∶5万地质灾害详细调查报告[R].2015:80-88.
[4] 吴恒,夏南,杨峰.海南地质综合勘察设计院.海南省昌江县红林26队居住区建设项目地质灾害危险性评估报告[R].2013:11-23.
[5] 陈宁生,等.泥石流勘查技术[M].北京:科学出版社, 2011: 1-27.
[6] 阮孝政.浅析泥石流的成因及治理措施[J].民营科技,2014(3):173.
[7] 林瑞杰,曹志翔.简论泥石流灾害的预防、治理与启示.[J].城市地理,2014,(8):25-35.
[8] 付开隆,彭经伟.海南省蒙水岭泥石流成因与运动特征分析[J].铁道工程学报,2012,(11):1-4.
[9] 谢涛,徐小林,等.泥石流拦挡坝研究现状及发展趋势[J].中国地质灾害与防治学报,2017,28(2):138-144.