武宁县花香林泥石流灾害成因及防治对策

Analysis on Causes of Debris Flow Disasterin Wuning county and the Countermeasures

武宁县花香林地处江西省北部山区,是泥石流多发区,先后于1958年6月和1998年6月爆发大型的泥石流,严重影响了当地人民的生命、财产安全和经济发展。通过收集大量相关资料及现场实地调查,在分析该泥石流基本特征的基础上,对泥石流的成因进行探讨。结果表明,复杂的岩性及地质构造为泥石流的形成提供了丰富的固体物来源,是泥石流形成的基础;强降雨是形成泥石流灾害的触发条件;强降雨、地震两者相叠加时,就可能爆发泥石流。提出了对泥石流防治对策相应的建议,对山地的防灾减灾具有指导意义。

Huaxianglin is situated in the mountainous area Wuning county in north of jiangxi province, with occuring all kinds of geologic hazard frequently. The two Large debris flow went up in June 1958 and 1998, which had a strong impact on safety of lives and property in local people. Based on collecting great deal related data and locale field surveys, the characteristics had been analysed debris flow in this area and discussed the origin of debris flow. Results indicate that Complicated rock and geology structure provid abundant solid thing source and the foundation for the formation of debris flow The strong rainfall is to become triggering of debris flow disaster when the interaction between Strong rainfall and earthquake occur; they may be explosion of Debris Flow. The suggestions puts forward corresponding to the debris flow prevention and cure＇s counterplan,has a certain reference value to the disaster prevention of mountainous country.