| 茂县城区后山龙洞沟泥石流形成条件及防治方法探讨 |
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| 引用本文： | 罗永忠,潘向东,郝红兵.茂县城区后山龙洞沟泥石流形成条件及防治方法探讨[J].地质灾害与环境保护,2001,12(4):9-12. |
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| 作者姓名： | 罗永忠 潘向东 郝红兵 |
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| 作者单位： | 1. 四川省华地建设工程有限责任公司一○一分公司,四川,广汉,618300
2. 赤峰建筑勘察设计研究院,赤峰,024000 |
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| 摘 要： | 茂县位于川西北地区，为我国羌族居住地。城区后山龙沟为老的泥石流沟，流域面积为14.63km^2，主沟长9.3km，有三条支沟，主、支沟沟床比降大。流域内出露地层性为志留系茂县群灰色、灰绿色、黑色千枚岩、风化严重。近年来，由于对后山森林植被破坏，加之灌渠渗漏，致使龙洞沟两岸发生多处崩塌滑坡，在暴雨季节曾多次发生大规模泥石流。龙洞沟泥石流应视其形成特征，采取以挡拦、排导等工程措施为主，结合植树造林，预警预报、工程管理等措施为辅的综合防治方案。
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| 关 键 词： | 龙洞沟 泥石流 形成条件 防治方法 茂县 拦挡工程 植树造林 |
| 文章编号： | 1006-4362(2001)04-0009-04 |
FORMATION CONDITIONS AND CONTROL METHODS OF MUD FLOW IN LONGDONGGOU GULLY BEHIND MAOXIAN COUNTY TOWN |
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| LUO Yong,zhong,PAN Xiang,dong,HAO Hong,bing.FORMATION CONDITIONS AND CONTROL METHODS OF MUD FLOW IN LONGDONGGOU GULLY BEHIND MAOXIAN COUNTY TOWN[J].Journal of Geological Hazards and Environment Preservation,2001,12(4):9-12. |
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| Authors: | LUO Yong zhong PAN Xiang dong HAO Hong bing |
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| Abstract: | The longdonggou gully behind the county town of Maoxian is a mud flow gully, of which the watershed area is about 14.63 km2, and the main one of three branch valleys is 9.9 km long. The slope ratio of valleys' beds are rather high and rocks on slope are weathered seriously. In recent years the destruction of vegetation and water leakage from irrigation channels have caused rock falls and sliding on slopes in many places and in raining period the large scale debris flows happened for many times. It is necessary to take comprehensive measures to control the debris flows. |
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| Keywords: | debris flow formation condition control method |
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