Rockburst estimation model based on IEWM-SCM and its application

Rockburst, as a common disaster in geotechnical construction, such as mines, tunnels, and hydropower stations, induces huge economic losses and poses a great safety threat to construction workers. To estimate the rockburst disaster more reasonably, a method for estimating the rockburst intensity gra...

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Bibliographic Details
Published in:Environmental earth sciences 2023-02, Vol.82 (3), p.88, Article 88
Main Authors: Li, Mingliang, Li, Kegang, Qin, Qingci, Yue, Rui, Xu, Gang
Format: Article
Language:English
Subjects:
Accuracy
Biogeosciences
Clouds
Comparative analysis
Construction
Construction industry
Disasters
Earth and Environmental Science
Earth Sciences
Economic impact
Entropy
Entropy (statistics)
Environmental Science and Engineering
Estimation
Geochemistry
Geology
Hydroelectric power
Hydroelectric power stations
Hydrology/Water Resources
Methods
Model accuracy
Modelling
Original Article
Rockbursts
Terrestrial Pollution
Tunnel construction
Tunnels
Weighting methods
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Summary:Rockburst, as a common disaster in geotechnical construction, such as mines, tunnels, and hydropower stations, induces huge economic losses and poses a great safety threat to construction workers. To estimate the rockburst disaster more reasonably, a method for estimating the rockburst intensity grade is proposed based on the improved entropy weight method-similar cloud model (IEWM-SCM). The IEWM-weighted rockburst estimation index can solve the problem of the imprecise objective weight in the traditional entropy weight method. Concurrently, based on the preference correction coefficient in the IEWM, the interference of abnormal values in the collected rockburst engineering case data samples is eliminated, so that the accuracy of rockburst estimation is higher, whereas the introduction of the similar cloud model theory can transfer the rockburst estimation index to the concept of cloud, thus eliminating the uncertainty and fuzziness during the rockburst estimation process. Therefore, a new method for estimating the rockburst is established based on these two methods. Moreover, seven comparative models were established for comparative analysis and finally applied to the Jinping II Hydropower Station, Jiangbian Hydropower Station, Cangling Tunnel, and Maluping Mine. Results show that the present model has higher accuracy and applicability, which offers a new method for estimating rockburst.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-023-10764-y