IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.10
Distribution and quantitative zonation of unloading cracks at a proposed large hydropower station dam Site
Alternative TitleDistribution and quantitative zonation of unloading cracks at a proposed large hydropower station dam Site
ZHAO Wei-hua; FROST J. D.; HUANG Run-qiu; YAN Ming; JIN Long-de
Corresponding AuthorZHAO Wei-hua
2017-10
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:10Pages:2106-2121
Subtype期刊论文
AbstractRock mass unloading is an important rock engineering problem because unloading may impact the stability of a rock mass slope. Based on hydroelectric engineering principles, this study focuses on the classification of unloading zones to reflect the rock mass structure characteristics. Geological background and slope structure of the study region were considered to investigate the distribution and deformation of the unloading process. Quantitative indices were classified according to the formation mechanisms and the geological exhibition of unloading zones. The P-wave velocity (), the ratio of the wave velocity (, the ratio of the test P-wave velocity along the adit depth to the P-wave velocity of intact rock), the sum of joint openings every 2 meters (), and the density of open joints () were calculated as quantitative indices for the rock mass unloading zone. The characteristics of the unloading zone of rock mass slopes at the dam site were successfully determined. The method of combining qualitative data with quantitative indices was found to be effective for the classification of slope unloading zones.
Other AbstractRock mass unloading is an important rock engineering problem because unloading may impact the stability of a rock mass slope. Based on hydroelectric engineering principles, this study focuses on the classification of unloading zones to reflect the rock mass structure characteristics. Geological background and slope structure of the study region were considered to investigate the distribution and deformation of the unloading process. Quantitative indices were classified according to the formation mechanisms and the geological exhibition of unloading zones. The P-wave velocity (), the ratio of the wave velocity (, the ratio of the test P-wave velocity along the adit depth to the P-wave velocity of intact rock), the sum of joint openings every 2 meters (), and the density of open joints () were calculated as quantitative indices for the rock mass unloading zone. The characteristics of the unloading zone of rock mass slopes at the dam site were successfully determined. The method of combining qualitative data with quantitative indices was found to be effective for the classification of slope unloading zones.
KeywordSlope Structure Unloading Phenomena Classify Unloading Zones Quantitative Indexes
DOIhttps://doi.org/10.1007/s11629-017-4431-y
Indexed BySCI
Language英语
CSCD IDCSCD:6081868
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19102
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.10
Recommended Citation
GB/T 7714
ZHAO Wei-hua,FROST J. D.,HUANG Run-qiu,et al. Distribution and quantitative zonation of unloading cracks at a proposed large hydropower station dam Site[J]. Journal of Mountain Science,2017,14(10):2106-2121.
APA ZHAO Wei-hua,FROST J. D.,HUANG Run-qiu,YAN Ming,&JIN Long-de.(2017).Distribution and quantitative zonation of unloading cracks at a proposed large hydropower station dam Site.Journal of Mountain Science,14(10),2106-2121.
MLA ZHAO Wei-hua,et al."Distribution and quantitative zonation of unloading cracks at a proposed large hydropower station dam Site".Journal of Mountain Science 14.10(2017):2106-2121.
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