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Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Earth Sciences & Environment is the property of Journal of Earth Sciences & Environment and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Engineering Geology / Gongcheng Dizhi Xuebao is the property of Journal of Engineering Geology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The correlation calculation model between landslide and assessment factors has a direct impact on the accuracy of landslide susceptibility evaluation. From Baihetan reservoir area the impact of various correlation models on landslide susceptibility evaluation is studied. The empirical model represented by the analytic hierarchy process(AHP) and the statistical model represented by the information value(IV) are respectively coupled with BP neural network(BPNN) model to evaluate landslide susceptibility. The evaluation results of the BPNN model alone are used in the comparison. To compare and assess landslide susceptibility data, the ROC curve, frequency ratio, and susceptibility index distribution(mean value and standard deviation) are utilized. The IVBPNN coupling model beats the AHP-BPNN coupling model in terms of accuracy, and the statistical analysis model beats the AHP-BPNN coupling model in terms of landslide evaluation factor correlation analysis. Susceptibility evaluation results from a single BPNN model are less accurate than those from a coupled model. The study found that using the coupling model of the evaluation factor correlation approach to assess landslide susceptibility has evident benefits. The statistical analysis model represented by the information method is used as an evaluation factor for the coupling calculation, and the sensitivity evaluation result obtained by the correlation method is more accurate and reliable. It is more in line with the actual distribution of landslides in the study area. [ABSTRACT FROM AUTHOR]

Granite residual soil is a kind of special soil, which is easy to induce geological disasters under the condition of heavy rainfall. Taking the mass landslides in Beiling area, Longchuan County, Guangdong Province as the background, the formation mechanism of typical landslides was explored by means of physical simulation. The results show as follows. The influencing factors of landslides are rainfall intensity, physical and mechanical properties of rock and soil mass, slope structure. Rainfall did not cause the abnormal increase or decrease of soil pressure and pore water pressure in the slope, indicating that the failure of the slope was limited to the local failure of the slope surface and the slope toe, and there was no overall deformation and failure trend. On the surface of the slope, the slope was eroded by rainfall, and on the foot of the slope, the free surface collapses and undergoes erosion. On the whole, the slope showed the characteristics of “step by step retreat and damage in turn”. The evolutionary process of landslide could be divided into the following four stages: original slope evolution stage, soil particle migration stage, slope surface local failure stage and overall instability stage. [ABSTRACT FROM AUTHOR]

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Geological Hazard & Control is the property of China Institute of Geological Environmental Monitoring (CIGEM) Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)