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| 1 | NMR-based damage characterisation of backfill material in host rock under dynamic loading显示文摘It is not uncommon that backfill material used in underground mining being exposed to repetitive dynamic stresses induced by blasting operations or rockburst events. Understanding the strength and fracture evolution of backfilled stopes is critical to maintain the long-term stope stability and ensure safe mining activities. This paper aims to study the damage evolution of the backfill material and its host rock behaviour under three-dimensional(3D) dynamic loading. Using a true-triaxial testing machine, multiple samples of backfill material enclosed by country rock were fabricated and tested under various dynamic loadings with different true-triaxial confining stress conditions. In addition, the nuclear magnetic resonance(NMR) measurement was conducted on the samples before and after exerting static and dynamic loading to obtain their porosity distribution changes. The experiment results suggested that with the increase of the dynamic loading, the porosity of the backfill sample goes through a two-stage process,which shows a slightly linear decrease and then followed by an exponential increase. The research findings can help understand the damage mechanism and fracture development of backfilled stopes and its host rock in deep underground mines, which are constantly subject to the combination of 3D static confining stress and dynamic loading. | Binglei Li Jiquan Lan Guangyao Si Guopeng Lin Liuqing Hu | 2020 | International Journal of Mining Science and Technology2020，30，3： | 16 |
| 2 | Review of condition monitoring and defect inspection methods for composited cable terminals显示文摘Composited cable terminals are critical for reliable power delivery of traditional and traction power supply systems.During its operation,the cable terminal continually undergoes complex circumstances where humidity,temperature,field strength,mechanical stress and other factors continuously change at different levels.In extreme cases,defects or even failures may occur in the cable terminals,leading to catastrophic accidents.This makes the condition monitoring and defect detection of composited cable terminals become an imperative need for the power industry.The“state-of-the-art”technology of cable terminal condition assessment is focussed and a systematic review of the current research progress of cable terminal condition assessment from the operation circumstances to failure mechanisms is provided.It covers both online/offline condition monitoring methods and defects detection approaches.In addition,challenges and future research directions for cable terminal condition assessment are also addressed.It is concluded that the non-destructive and non-intrusive methods like terahertz imaging and ultrasonic testing,and multi-source information fusion methods as well as the digital twin technology have been gaining popularity for cable terminal defect inspection.It is expected the presented work can provide a global field of vision for further advancement of both scholars and industrial engineers in this field. | Shuaibing Li Binglei Cao Jin Li Yi Cui Yongqiang Kang Guangning Wu | 2023 | High Voltage2023，8，3： | 4 |
| 3 | Interpreting the Coseismic Uplift and Subsidence of the Longmen Shan Foreland Basin System during the Wenchuan Earthquake by a Elastic Flexural Model显示文摘coseismic 表面高举, Longmen 掸人(LMS ) 在四川盆的西方的边缘上创造了即时地志的负担表面沉淀,减少东方,用几个方法被测量了例如 GPS, SAR 并且铺平。用一个有弹性的曲折模型,我们试图解释 coseismic 表面高举并且沉淀,并且抑制有效 lithospheric 橡皮厚度(T 四川盆的 e ) 。用为四川盆的不同有效有弹性的厚度价值,一系列沉淀曲线被有弹性的弯曲模型方程为一个破有弹性的盘子计算。曲线,用 30-40 km 的有效有弹性的厚度由模型生产了,提供了对四川盆的观察 coseismic 沉淀的一般模式合适的最好。然而,在 LMS 的前面的计算沉淀(∼40-70 厘米) 比观察价值(∼100 厘米) 显然低,建议有效有弹性的厚度应该在那里更低。这些结果显示 lithospheric 力量可以从四川盆向西减少到 LMS。 | YAN Zhaokun LI Yong SHAO Chongjian ZHOU Rongjun YAN Liang ZHAO Guohua YAN Binglei | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 4 |
| 4 | Facile synthesis of ultrafine Cu 2 ZnSnS 4 nanocrystals by hydrothermal method for use in solar cells显示文摘 | Wenchao Liu Binglei Guo Cheeleung Mak Aidong Li Xiaoshan Wu Fengming Zhang | 2012 | Thin Solid Films2012，，： | 1 |
| 5 | Quantitative assessment of the spatio-temporal correlations of seismic events induced by longwall coal mining显示文摘Rock failure process as a natural response to mining activities is associated with seismic events, which can pose a potential hazard to mine operators, equipment and infrastructures. Mining-induced seismicity has been found to be internally correlated in both time and space domains as a result of rock fracturing during progressive mining activities. Understanding the spatio-temporal(ST) correlation of mininginduced seismic events is an essential step to use seismic data for further analysis, such as rockburst prediction and caving assessment. However, there are no established methods to perform this critical task. Input parameters used for the prediction of seismic hazards, such as the time window of past data and effective prediction distance, are determined based on site-specific experience without statistical or physical reasons to support. Therefore, the accuracy of current seismic prediction methods is largely constrained, which can only be addressed by quantitively assessing the ST correlations of mininginduced seismicity. In this research, the ST correlation of seismic event energy collected from a study mine is quantitatively analysed using various statistical methods, including autocorrelation function(ACF), semivariogram and Moran’s I analysis. In addition, based on the integrated ST correlation assessment, seismic events are further classified into seven clusters, so as to assess the correlations within individual clusters. The correlation of seismic events is found to be quantitatively assessable, and their correlations may vary throughout the mineral extraction process. | Shuyu Wang Guangyao Si Changbin Wang Wu Cai Binglei Li Joung Oh Ismet Canbulat | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，5： | 0 |
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