1. 西安科技大学 地质与环境学院,陕西,西安,710054
2. 长安大学 地质工程与测绘学院,陕西,西安,710054
3. 长安大学 建筑工程学院,陕西,西安,710054
纸质出版:2016
移动端阅览
段钊, 彭建兵, 王启耀. 泾阳南塬黄土滑坡的运动规律与液化效应[J]. 水土保持通报, 2016,36(3):46-49.
DUAN Zhao, PENG Jianbing, WANG Qiyao. Motion Law and Liquefaction Effect of Loess Landslides in South Jingyang Plateau[J]. Bulletin of Soiland Water Conservation, 2016, 36(3): 46-49.
段钊, 彭建兵, 王启耀. 泾阳南塬黄土滑坡的运动规律与液化效应[J]. 水土保持通报, 2016,36(3):46-49. DOI: 10.13961/j.cnki.stbctb.2016.03.009.
DUAN Zhao, PENG Jianbing, WANG Qiyao. Motion Law and Liquefaction Effect of Loess Landslides in South Jingyang Plateau[J]. Bulletin of Soiland Water Conservation, 2016, 36(3): 46-49. DOI: 10.13961/j.cnki.stbctb.2016.03.009.
[目的] 查明滑坡的运动特征及其影响因素,探讨滑坡的运动规律与内在机制,为区域防灾减灾工作提供理论借鉴。[方法] 以泾阳南塬黄土滑坡为例,通过现场调查及槽探查明了滑坡的运动特征,采用统计学方法分析了滑坡的运动规律,在此基础上,探讨引起滑坡运动特征分异的“液化效应”。[结果] 按照运动特征将泾阳南塬黄土滑坡划分为流滑型和滑动型两类,流滑型滑坡的滑距一般为坡高的4倍,滑动型滑坡的滑距约为坡高的2倍。1.50×10
5
m
3
可近似的认为是研究区内“足以形成最大液化程度的最小滑体体积”。[结论] 滑体体积及边界条件对滑坡运动液化影响显著,一般情况下滑坡体积越大、滑动边界越简单,运动液化程度就越高,运动距离也就越远;而体积越小、滑动边界越复杂,运动液化程度就越低,运动距离也就越近。
[Objective] To discuss the motion law and liquefaction effect by analyzing the motion characteristics and its driving factors of loess landslides in order to provide theoretical references for hazard prevention and treatment in landslide areas.[Methods] The loess landslide in South Jingyang plateau was chosen to research the motion law of landslide by site investigating
trench excavating
and statistical analysis. Based on the above works
the influences of liquefaction effects on motion characteristics were discussed.[Results] According to the motion characteristics
the landslide in South Jingyang plateau was classified into two types:flowslide and slide. In the flowslide type
the sliding distance was four times of slope height
while the sliding distance was two times of slope height in the slide type. The minimum landslide volume that was sufficient to produce the greatest degree of liquefaction was about 1.50×105 m3 in study area.[Conclusion] Greater volume and simpler sliding boundary of landslide will improve flow motion
vice versa.
徐张建,林在贯,张茂省.中国黄土与黄土滑坡[J].岩石力学与工程学报,2007,26(7):1297-1312.
Hsu K J. Catastrophic debris streams(sturzstroms) generated by rockfalls[J]. Geological Society of America Bulletin, 1975,86(1):129-140.
Zambrano O M. Large rock avalanches: a kinematic model[J]. Geotechnical and Geological Engeering.2008,26(3):283-287.
Davies T R H. Spreading of rock avalanche debris by mechanical fluidization[J]. Rock Mechanics and Rock Engineering, 1982,15(1):9-24.
黄润秋,许强.中国典型灾难性滑坡[M].北京:科学出版社,2008.
许领,戴福初.泾阳南塬黄土滑坡特征参数统计分析[J].水文地质工程地质,2008,35(5):28-32.
樊成意,梁收运.黄土台缘滑坡滑距与滑体形态的关系分析[J].中国地质灾害与防治学报,2013,24(1):18-24.
刘维,裴向军,蒲丹.海原地震诱发黄土滑坡的运动影响因素及滑距研究[J].路基工程,2014,14(2):40-48.
李鹏岳,铁永波,王东辉,等.川西高原冻融型高速滑坡特征与成因分析[J].水土保持通报,2014,34(1):173-177.
王念秦,张倬元.黄土滑坡灾害研究[M].兰州:兰州大学出版社,2005.
李秀珍,孔纪名."5·12"汶川地震诱发滑坡的滑动距离预测[J].四川大学学报:工程科学版,2010,42(5):243-249.
董书宁,李保雄.黄土滑坡的空间预报[J].煤田地质与勘探,2000,28(6):46-47.
段钊.黄土滑坡触发机理研究:以泾河下游南岸黄土塬区滑坡为例[D].西安:长安大学,2013.
金艳丽,戴福初.灌溉诱发黄土滑坡机理研究[J].岩土工程学报,2007,29(10):1493-1499.
Xu Ling, Dai Fuchu, Tham G L. Landslides in the transitional slopes between a loess platform and river terrace, Northwest China[J]. Environmental and Engineering Geoscience, 2011,152(3):267-279.
0
浏览量
1049
下载量
10
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621