Experimental Study on the Active Earth Pressure of Narrow Cohesionless Backfills against Rigid Retaining Wall under the Translation Mode by Li-Wei Xu, Yu-Jian Lin

“…In previous studies, experimental observations for the failure modes of narrow backfills are still rare. To confirm the failure mode of the narrow backfill, the experimental method and the geotechnical particle image velocimetry method are employed to observe the active failure process of the cohesionless narrow backfill with various widths under the translation mode. …”
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An Analytical Method of Coulomb’s Active Earth Pressure Acting on Cohesion-Less Backfill Subject to Local Surcharge in Cold Regions by Li Liu, Zhen Yang, Pan Zhou, Hongwei Yang

“…However, in practice, local surcharges commonly act on the surface of frozen backfill that is affected by freeze-thaw actions in cold regions and tend to affect the active thrust and its position. …”
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Paste Pipeline Transportation of Pumping Backfill Technology with Long Distance and High Stowing Gradient in Cold and High-Altitude Areas by Wei-jun Liu, Min Chen, Fei-fei Wang, Ren-ze Ou, Qi Liu

“…The physical and chemical properties of the backfill material, backfill proportion test, circular pipe experiment, and backfill system analysis evaluation were studied in the laboratory and outdoor, and the application in HCM was carried out to evaluate the technology. …”
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Study on the Relationship between Pore Structure and Uniaxial Compressive Strength of Cemented Paste Backfill by Using Air-Entraining Agent by Fengwen Zhao, Jianhua Hu, Dongjie Yang, Ye Kuang, Hongxing Xiao, Minghua Zheng, Xueliang Wang

“…To control pores in the backfill, the air-entraining agents (AEAs) are used as an admixture to realize the pore structure changes under artificial action and explore the effect of pore structure on strength. …”
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Experimental Investigation on Mechanical Properties of Cemented Paste Backfill under Different Gradations of Aggregate Particles and Types and Contents of Cementing Materials by Jiangyu Wu, Meimei Feng, Guansheng Han, Xiaoyan Ni, Zhanqing Chen

“…Obtaining the optimal gradation of aggregate particles is beneficial for improving the strength of cemented paste backfill (CPB). Consequently, the uniaxial compression tests with acoustic emission (AE) monitoring were performed on CPB, for which the aggregate particles satisfied the Talbot grading theory. …”
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Study on Layered-Backfill-Based Water Protection Technology of Thick Coal Seam in the Ecologically Fragile Mining Area in Western China by Lei Zhu, Tianqi Song, Wenzhe Gu, Kai Xu, Zhicheng Liu, Fengqi Qiu, Xinfu Zhang

“…The panel layout of the layered-backfill-based water protection working face and the parallel operation of mining and backfilling are designed, and a feedback regulation system integrating hydrological monitoring and backfill ratios is established, which assists in evaluating the effectiveness of water protection. …”
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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…”
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An Experimental Investigation on the Mechanical Properties of Gangue Concrete as a Roadside Support Body Material for Backfilling Gob-Side Entry Retaining by Peng Gong, Zhanguo Ma, Xiaoyan Ni, Ray Ruichong Zhang

“…Development of a safe and economical roadside support body (RSB) material is the key to successful backfilling gob-side entry retaining (GER). By means of laboratory tests, this paper studied the effects of the water-cement ratio, aggregate content, and age on the contractibility and resistance increasing speed, compressive strength, and postpeak carrying capacity of the concrete with gangues as an aggregate. …”
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Properties of Gobi Aggregate and Sulfide-Rich Tailings Cemented Paste Backfill and Its Application in a High-Stress Metal Mine by D. Q. Deng, Y. H. Liang, F. C. Huangfu

“…When the heading machine is used for tunnelling mine roadway in bottom backfill of VCR stope, no collapse or delamination occurs without support, showing good stability and integrity of backfill. …”
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Overlying Strata Movement Laws Induced by Longwall Mining of Deep Buried Coal Seam with Superhigh-Water Material Backfilling Technology by Fangtian Wang, Qi Ma, Gang Li, Chengguo Wu, Guangli Guo

“…Since underground mine pressure behavior and overlying strata movement are influenced by the backfilling strength and backfilling rates, rational design of backfilling parameters is key to realize the green mining of deep buried coal seams. …”
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Automatic Roadway Backfilling of Caving Gangue for Cutting Roofs by Combined Support on Gob-Side Entry Retaining with No-Pillars: A Case Study by Shengrong Xie, Xiaoyu Wu, Dongdong Chen, Yaohui Sun, Junchao Zeng, Qing Zhang, Chunwei Ji, Qiong Cheng, En Wang, Yuxin Ren

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Innovative development, microstructure and hydration characteristics of recycled brick powder-circulating fluidized bed fly ash-based earthwork subgrade backfill by Wenhuan Liu, Kaize Li, Xiaoyu Jiao, Hui Li, Honghong Cao, Yongping Qu

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Kinetic Column Evaluation of Potential Construction Options for Lessening Solute Mobility in Backfill Aquifers in Restored Coal Mine Pits, Powder River Basin, USA by Jeff B. Langman, Julianna Martin

Subjects: “…construction options for backfill aquifer…”
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Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process by Zhimin Huang, Lei Zhang, Zhanguo Ma

“…Based on the theory of elastic foundation beam, the mechanical model of the backfilling mining support-roof rock beam-gangue filling body under the condition of comprehensive mechanized filling mining is established. …”
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Study on the synergistic hydration mechanism of granulated blast furnace slag-carbide slag-based cementitious materials and the properties of full-solid waste backfill materials by Jianmin Li, Liwen Guo, Jiayong Zhang, Ye Li, Li Ma, Kai Wang

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Exploring the Dynamics of Brent Crude Oil, S&P500 and Bitcoin Prices Amid Economic Instability by Adela Bara, Irina Alexandra Georgescu, Simona-Vasilica Oprea, Marian Pompiliu Cristescu

Subjects: “…Backtesting…”
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Compact Uplink Circularly Polarized 2.4GHz Short Backfire Antenna for Geostationary Amateur Radio Satellite Es’Hail-2 (QO-100) by Michal Cerveny, Pavel Hazdra

“…The proposed antenna upgrades a standard short backfire antenna (SBA) by utilizing two metasurfaces with the first acting as a high-impedance surface (HIS) allowing for a reduction of the distance between the sub-reflector and main reflector and the second enhancing the sub-reflector while functioning both as a tunable polarization divider and phase shifter to form the circular polarization. …”
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Movement Laws of Overlying Strata above a Fully Mechanized Coal Mining Face Backfilled with Gangue: A Case Study in Jiulishan Coal Mine in Henan Province, China by Zhengkai Yang, Zhiheng Cheng, Zhenhua Li, Chunyuan Li, Lei Wang, Shuaifeng Yin, Jinhu Zhang

“…The aim of this study is to obtain movement laws of overlying strata above a fully mechanized coal mining face backfilled with gangue and solve the problem of surface subsidence during coal mining. …”
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How to Achieve a 50% Reduction in Nutrient Losses From Agricultural Catchments Under Different Climate Trajectories? by Maarten Wynants, Johan Strömqvist, Lukas Hallberg, John Livsey, Göran Lindström, Magdalena Bieroza

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To speak is to fight by Stefan Sonderling

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