Mechanical behaviour analysis of cemented tailings rock backfill materials: An insight from mesoscale modelling coupled with damage plasticity model by Chaoyi Yang, Hang Lin, Rugao Gao, Zhengrong Li, Dengjun Gan, Mingwu Liu, Qifan Ren

Subjects: “…Cemented tailings rock backfill…”
Get full text

Research on the Reasonable Coal Pillar Width and Surrounding Rock Supporting Optimization of Gob-Side Entry under Inclined Seam Condition by Li-li Jiang, Zeng-qiang Yang, Gang-wei Li

“…In order to study the optimal coal pillar width and surrounding rock control mechanism of gob-side entry under inclined seam condition, the 130205 return air entry adjacent to 130203 gob in Yangchangwan No. 1 well is taken as a typical engineering background. …”
Get full text

Another new karst-dwelling rock gecko in the Cnemaspis siamensis group (Reptilia, Gekkonidae) from Kanchanaburi Province, western Thailand by Attapol Rujirawan, Akrachai Aksornneam, Siriporn Yodthong, Parinya Pawangkhanant, Bryan L. Stuart, Anchalee Aowphol

Get full text

Research on Mechanisms and Control Measures of Surrounding Rock Disaster in Large Section Roadway with Top Coal under the Influence of Tectonic Stress by Yang Yu, Jianfei Lu, Dingchao Chen, Yuxin Pan, Xiangqian Zhao, Cheng Chen

“…Based on the principle of damage mechanics, the critical size discriminant of the LSRTC was deduced, and the induction mechanism of section size effect and tectonic stress effect on the roadway surrounding rock disaster was revealed. Accordingly, the roadway surrounding rock control principle with the basic idea of “stabilizing and controlling top coal, reconstructing the coal wall, and limiting floor heave” was put forward, and the roadway surrounding rock stability control countermeasures with the core technology of “strong pressure support for roof + grouting reinforcement for two sides + bolt barrier for floor angle” were developed, which solved the surrounding rock control problem of the LSRTC under the action of tectonic stress and provided a useful reference for the difficult problem of roadway surrounding rock control under similar conditions.…”
Get full text

Full-Field Strain Characterizations and Fracture Process of Rock Blasting Using a Small-Scale Double-Hole Bench Model by Jun Yang, Xin Liu, Zhenyang Xu, Hongliang Tang, Qi Yu

“…A small-scale double-hole bench model is designed with granite to study the fracture mechanism of rock blasting. By combining high-speed camera and digital image correlation, the full-field strain characterization and fracture process of the specimen bevel surface are investigated. …”
Get full text

Uniaxial compressive damage evolution and constitutive modeling of fissure-like rocks under different loading rates based on acoustic emission by Qinyong Wang, Wei Chen, Wenqing Peng, Yuanzeng Wang, Yu Zhou, Zhili Peng

“…This study aims to explore the influence of different loading rates on the mechanical properties and acoustic emission (AE) characteristics of fissured rocks and to develop an intrinsic damage model. To achieve this, prefabricated fissured rock specimens that mimic natural rocks were prepared. …”
Get full text

PENGARUH PEMBERIAN PUPUK ROCK PHOSPHATE TERHADAP PRODUKSI TANDAN BUAH SEGAR (TBS) KELAPA SAWIT (Elaeis guineensis. Jacq) by Muhamad Rizal

Subjects: “…Rock Phosphate Fertilizer, Diameter Fresh Fruit, fresh fruit weight, number brondolan…”
Get full text

Review of the Geological Strength Index (GSI) as an Empirical Classification and Rock Mass Property Estimation Tool: Origination, Modifications, Applications, and Limitations by Sajjad Hussian, Noor Mohammad, Zahid Ur Rehman, Naseer Muhammad Khan, Khan Shahzada, Sarfraz Ali, Muhammad Tahir, Salim Raza, Saira Sherin

“…The geological strength index (GSI) is one of the most exceptional rock mass classification system which is used to evaluate very weak and highly jointed rock mass by different approaches and related to rock mass geomechanical properties including generalized Hoek & Brown constants, deformation modulus, strength properties, and Poisson’s ratio for an appropriate design of tunnels, caverns, and other engineering structures. …”
Get full text

Field Detection and Numerical Simulation Study on Roof Asymmetric Fracture Mechanism of Large-Span Soft Rock Roadway with Discontinuity Surface by Liang Chen, Shouyang Gao, Bin Miao, Nan Yao, Shizhong Zhang, Wei Zhang

“…Research results can provide an extremely important reference for the optimization and design of support scheme with discontinuity-thick soft rock roof-large span roadways.…”
Get full text

Dynamic Evolution Law of Overburden Rock in Shallow-Buried Super-High Fully Mechanized Working Face and Determination of Support Strength by Yingjie Liu, Haijun Wang, Qingjie Qi, Anhu Wang, Youxin Zhao

Get full text

Characterizing a complex buildup in the Pearl River Mouth Basin of the northern South China Sea: an interplay of carbonates and igneous rocks by Beichen Chen, Leyi Xu, Baojun Liu, Lili Zhang, Dong Xiao, Ya Gao, Ya Gao, Feng Wu, Xueqi Yang, Yaming Zou, Yongkun Ma, Yinglin Zhang

“…By analyzing the lithofacies of the carbonates and igneous rocks, the morphological features and spatial distribution patterns corresponding to these sedimentary and volcanic facies were identified. …”
Get full text

Study on Reasonable Layout of Upper Protective Layer for Prevention Rock Burst under Coal Seam Group with Close Quarters Conditions by Hui-Wu Jin, Zeng-Qiang Yang

“…To study the reasonable layout of upper protective layer for the prevention rock burst under coal seam group with close quarters conditions, a panel 3203 that belong to Zhongxing Colliery is taken as a typical engineering background. …”
Get full text

Study of Shale Gas Source Rock S-Wave Structure Characteristics via Dense Array Ambient Noise Tomography in Zhangjiakou, China by Si Chen, Zhanwu Lu, Haiyan Wang, Qingyu Wu, Wei Cai, Guowei Wu, Guangwen Wang

Get full text

Benidipine Protects Kidney through Inhibiting ROCK1 Activity and Reducing the Epithelium-Mesenchymal Transdifferentiation in Type 1 Diabetic Rats by Ganlin Wu, Meirong Xu, Kui Xu, Yilan Hu

“…Immunohistochemistry and western blotting were for protein expressions of ROCK1, α-SMA, and E-cadherin and real-time PCR for the mRNA quantification of ROCK1. …”
Get full text

Nonlinear Dynamics Mechanism of Rock Burst Induced by the Instability of the Layer-Crack Plate Structure in the Coal Wall in Deep Coal Mining by Yanlong Chen, Aihong Lu, Xianbiao Mao, Ming Li, Lianying Zhang

“…The instability of layer-crack plate structure in coal wall is one of the causes of rock burst. In the present paper, we investigate the formation and instability processes of layer-crack plate structure in coal wall by experiments and theoretical analysis. …”
Get full text

The Numerical Simulation of Hard Rocks for Tunnelling Purposes at Great Depths: A Comparison between the Hybrid FDEM Method and Continuous Techniques by Nicholas Vlachopoulos, Ioannis Vazaios

“…Especially, when it comes to hard rocks at great depths, the rockmass is more likely to respond in a brittle manner during the excavation. …”
Get full text

Loosening rocks detection at Draa Sfar deep underground mine in Morocco using infrared thermal imaging and image segmentation models by Kaoutar Clero, Said Ed-Diny, Mohammed Achalhi, Mouhamed Cherkaoui, Imad El Harraki, Sanaa El Fkihi, Intissar Benzakour, Tarik Soror, Said Rziki, Hamd Ait Abdelali, Hicham Tagemouati, François Bourzeix

“…Rockfalls are among the frequent hazards in underground mines worldwide, requiring effective methods for detecting unstable rock blocks to ensure miners' and equipment's safety. …”
Get full text

Experimental Study on Mechanical Properties and Energy Evolution Law of Coal-Rock Composite Structure under Different Interface Connection Modes by Chenglin Tian, Haitao Sun, Linchao Dai, Rifu Li, Bo Wang, Jie Cao, Jun Wang, Qianting Hu

“…The stability of the coal-rock composite structure is of great significance to the safety production of deep mines, and the different interface connection modes of coal and rock have an important influence on its stability. …”
Get full text

REE AND Th MINERALS IN THE METASANDSTONES OF THE UDOKAN BASIN (RUSSIA) by E.V. Belogub, K.A. Novoselov, V.V. Shilovskikh, I.A. Blinov, E.E. Palenova

Subjects: Get full text

Subvolcanic petrology of the Pico dos Três Estados region (SE Brazil): Implications for Alkaline Magmatic Evolution by Graciano Carlos de Freitas, Artur Corval, Júlio Cesar Lopes da Silva, Helena Saraiva Koenow Pinheiro, Sérgio de Castro Valente

Subjects: Get full text