IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleGeotechnical mechanical parameters determination of prediction unit based spatial interpolation technique
王凯1; 张少杰2; 韦方强3
Source Publication自然灾害学报
Contribution Rank2
Other AbstractCurrently,soil mechanical parameters selection in the landslide prediction unit based on the random selection theory can not actually reflect the effect of different lithologies and rock weathering degrees. For this issue, we proposed a new soil mechanical parameter selection method based the kriging interpolation theory. In the proposed method,the soil mechanical parameters (here mainly refer to the cohesion force and friction angle) as regional variables and the different lithology boundaries is used as the interpolation boundaries. Firstly,we take high density and uniform soil samples in each lithology region. Direct shear tests are conducted on soil samples to get soil parameters under liquid and plastic limit respectively. Then,the proposed method uses the lithology boundaries as the interpolation boundaries in order to reflect the effect of lithologies. Within the same lithology region,the kriging method is used to simulate the effect of rock weathering degrees on the parameter variation. Study result indicates the proposed method shows higher interpolation precision compared with the conventional method,this means the lithologies has nonnegligible effect on the parameter selection,and the proposed method is more appropriate to reflect the geotechnical mechanical parameters variation near different lithologic boundaries. This study is expected to provide a new approach for the refinement of parameters in prediction unit.
Keyword区域滑坡 预报单元 力学参数 岩性边界 空间插值
Indexed ByCSCD
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author王凯
Affiliation1.中原工学院建筑工程学院, 河南 郑州 450007;
2.中国科学院成都山地灾害与环境研究所, 四川 成都 610041;
3.中国科学院重庆绿色智能技术研究院, 重庆 400714
Recommended Citation
GB/T 7714
王凯,张少杰,韦方强. 基于空间插值技术的降雨型滑坡下垫面岩土体力学参数取值研究[J]. 自然灾害学报,2019,28(5):207-219.
APA 王凯,张少杰,&韦方强.(2019).基于空间插值技术的降雨型滑坡下垫面岩土体力学参数取值研究.自然灾害学报,28(5),207-219.
MLA 王凯,et al."基于空间插值技术的降雨型滑坡下垫面岩土体力学参数取值研究".自然灾害学报 28.5(2019):207-219.
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