5·12汶川地震青川县木鱼镇滑坡坝稳定性分析
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摘要
滑坡坝及其形成的堰塞湖是山区常见的一种地质灾害,在强地震发生时,滑坡坝形成的堰塞湖的数量多,规模大。汶川5·12地震发生时,就形成了多个堰塞湖,这些滑坡坝一旦发生溃坝,将会对下游灾民和抢险人员生命安全构成很大的威胁。文中对汶川大地震发生期间木鱼镇滑坡坝进行研究。通过地质分析和计算表明,这个滑坡坝在发生和强降雨和地震期间是稳定的,不会对下游构成威胁,因此,可以不对此滑坡坝采取防治措施。此研究结果已在实践中证明是正确的,其研究方法可以为类似工作提供参考。
The mountain landslide dam is a common geological disasters,in the event of strong earthquakes,landslides dam formation of the large number of lakes of them,a large scale of it.Wenchuan 5·12 earthquake,on the formation of a number of lakes of them,the landslide dam the event of a dam break,will be on the lower reaches of victims and rescue personnel lives and safety pose a great threat.Wenchuan this paper is on the earthquake occurred during the Muyu town landslide dam,the stability of the landslide dam situation,must make a clear and reliable conclusions for reference to the headquarters.Through geological analysis and calculation shows that this dam in the event of landslides and heavy rainfall and earthquakes during the period is stable and will not pose a threat to the downstream,therefore,can not take this landslide dam prevention and control measures.The results in practice proved to be correct.Research methods can provide reference for similar work.
The mountain landslide dam is a common geological disasters,in the event of strong earthquakes,landslides dam formation of the large number of lakes of them,a large scale of it.Wenchuan 5·12 earthquake,on the formation of a number of lakes of them,the landslide dam the event of a dam break,will be on the lower reaches of victims and rescue personnel lives and safety pose a great threat.Wenchuan this paper is on the earthquake occurred during the Muyu town landslide dam,the stability of the landslide dam situation,must make a clear and reliable conclusions for reference to the headquarters.Through geological analysis and calculation shows that this dam in the event of landslides and heavy rainfall and earthquakes during the period is stable and will not pose a threat to the downstream,therefore,can not take this landslide dam prevention and control measures.The results in practice proved to be correct.Research methods can provide reference for similar work.
引文
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[2]Huan Runqiu,Wang Shitian,Zhang Zuoyuanet al.Study on the su-perficial and surface course of dynamics of earth shell and engineering environment effect in westsouth of china[M].chengdu:the press of sichuang university,2001,412.[黄润秋,王士天,张倬元等.中国西南地壳浅表生动力学过程及其工程环境效应研究[M].成都:四川大学出版社,2001,412页.]
[3]Liu Huijun,Duang Zhigang,Cui Yingxianget al.Study on relation betweenthe character of the plant growth and the formation time and stability of a landslide dam[J].Journal ofmountain science,2003,21(6):736～738[刘惠军,段志刚,崔银祥,等.植物特征与某滑坡坝形成时间和稳定性关系[J],山地学报,2003,21(6):736～738]
[4]Hanfeng Xia.Dynamic Analysis of the earth dam[J].Shandong E-lectric Power Technology,2002,(3)67～68[韩凤霞.土石坝动力分析[J].山东电力技术,2002,(3)67～68]
[5]Zhu Yingbin,YanLi Li.The analysis of earth dam reasonable shape and slope stability[J].Water Science and Technology of Hei-longjiang,2002,(2)46～46[朱颍斌,李艳丽.土石坝合理边坡形状和稳定分析[J].黑龙江水利科技,2002,(2)46～46]
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