基于专家知识的滑坡危险性模糊评估方法
收稿日期: 2006-06-01
修回日期: 2006-07-01
网络出版日期: 2006-07-25
基金资助
国家重点基础研究发展计划项目( 2006CB701305) ; 中科院"百人计划"项目; 国家自然科学基金 ( 40225004)
A Landslide Susceptibility Mapping Approach Using Exper t Knowledge and Fuzzy Logic Under GIS
Received date: 2006-06-01
Revised date: 2006-07-01
Online published: 2006-07-25
滑坡发生的影响因素众多， 其危险性与各因素之间的关系多呈非线性关系， 同时各因素之 间也存在或强或弱的相关性， 而目前的危险性评价方法难以体现这些要求。本文提出了一种借助 滑坡专家知识并利用模糊推理理论进行滑坡危险性评价的方法。该方法通过建立了①坡度与岩 层倾角之差和坡向与岩层倾向之差、②坡度和岩性、③临空面和岩性、④坡形和岩性等四种环境 因子组合， 以此将不同环境因子之间的相关性融入各组合模型中， 并将四种组合所得的模糊危险 度进行叠加用于滑坡危险度的模糊评价。环境组合模型中的参数利用专家经验给出。将该方法应 用于三峡库区云阳- 巫山段， 得到了滑坡危险性的分级分布图。从滑坡危险性分布图上可清楚发 现， 本方法所计算出的危险性值在滑坡发生的地区明显高于未发生滑坡的地区， 该结果可以用于 城镇建设和重要基础规划设施的参考。
朱阿兴,裴韬,乔建平,陈永波,周成虎,蔡强国 . 基于专家知识的滑坡危险性模糊评估方法[J]. 地理科学进展, 2006 , 25(4) : 1 -12 . DOI: 10.11820/dlkxjz.2006.04.001
Current methods cannot meet the needs of evaluating landslide susceptibility because they cannot incorporate the nonlinear relations between landslide and the inducing factors as well as the different forms of relationships. A new approach integrating the expert knowledge and fuzzy logic is proposed in this paper to evaluate the landslide susceptibility. This method first encodes the knowledge from domain experts into four combinations of environmental factors: 1) the difference between slope gradient and the strata gradient as well as the difference between slope orientation and strata orientation, 2) slope gradient and lithology, 3) slope height and lithology, and 4) slope shape and lithology, and thus incorporates the relativity between factors into these combination models. Information on variables involved in these combinations is characterized using a set of GIS techniques. The susceptibility of a given location hence can be evaluated by evaluating each combination and overlaying the values from these four combinations. Some parameters in these models are determined by statistical analysis, and others are provided by landslide experts. The approach is applied to a section of the Three Gorges area from Yunyang to Wushan, and a susceptibility map is produced. The result shows that the computed susceptibility values are much higher over areas with landslides than areas without landslides. We conclude that our approach is capable of capturing the landslide susceptibility.
[1] Carrara A, Cardinali M, Detti R et al. GIS techniques and statistical models in evaluating landslide hazard. Earth Surface Processes and Landforms, 1991, 16: 427~445.
[2] Carrara A, Guzzetti F, Cardinali M, et al. Use of GIS technology in the prediction and monitoring of landslide hazard. Natural Hazards, 1999, 20: 117~135.
[3] Gritzner M L, Marcus W A, Aspinall R, et al. Assessing landslide potential using GIS, soil wetness modeling and topographic attributes, Payette River, Idaho. Geomorphology, 2001, 37: 149~165.
[4] 赵建华, 杨树锋, 陈汉林等. 浙江庆元地区滑坡灾害的多要素评价. 高校地质学报, 2002, 8(4): 460~465.
[5] Qiao J P, Zhu A X, Chen Y B et al. A 3D visible evaluation of landslide risk degree under integration of GIS and artificial intelligence. Science in China E: Engineering & Materials Science, 2003, 46: 142~147.
[6] Dai F C, Lee C F, Ngai Y Y. Landslide risk assessment and management: an overview. Engineering Geology, 2002, 64: 65~87.
[7] Carrara, A and Guzzetti, F. Geographical Information Systems in Assessing Natural Hazards. Klumer Academic Publisher, Boston, U.S.A, 1995.
[8] Finlay P J, Fell R Maguire P K. The relationship between the probability of landslide occurrence and rainfall. Canadian Geotechnical Journal, 1997, 34: 811~824.
[9] Miller D J, Sias J. Deciphering large landslides: linking hydrological, groundwater and slope stability models through GIS. Hydrological Processes, 1998, 12: 923~941.
[10] Franks C A M. Characteristics of some rainfall- induced landslides on natural slopes, Lantau Island, Hong Kong. Quarterly Journal of Engineering Geology, 1999, 32: 247~259.
[11] Dai F C, Lee C F. Frequency- volume relation and prediction of rainfall- induced landslides. Engineering Geology, 2001, 59: 253~266.
[12] 殷坤龙, 朱良峰. 滑坡灾害空间区划及GIS 应用研究. 地学前缘, 2001, 8(2): 279~284.
[13] Dai F C, Lee C F. Landslide characteristics and slope instability modeling using GIS, Lantau Island, Hong Kong. Geomorphology, 2002, 42: 213~228.
[14] Zhu AX, Wang R X, Qiao J P, et al. Mapping landslide susceptibility in the Three Gorge Area, China using GIS, expert systems and fuzzy logic, In: Chen Y B, Takara K, Cluckie I et al., eds., GIS and Remote Sensing in Hydrology, Water Resources and Environment, IAHS Publication 289 (IAHS Red Book). International Association of Hydrological Sciences, Wallingford, UK, 2004, 385~391.
[15] Wu S R, Shi L, Wang R J. Zonation of the landslide hazards in the forereservoir region of the Three Gorges Project on the Yangtze River. Engineering Geology, 2001, 59: 51~58.
[16] 王尚庆. 长江三峡滑坡监测预报, 北京: 地质出版社, 1999.
[17] 向立斌, 覃德富. 三峡库区滑坡泥石流预警指南. 武汉: 武汉水利电力大学出版社, 1999.
[18] Terrain Analytics LLC, 2003. www.terrainanalytics.com
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