Search Results - "Qin, Yongjun"

Mechanical properties and acoustic emission analysis of desert sand concrete reinforced with steel fiber by Qu, Changwei, Qin, Yongjun, Luo, Ling, Zhang, Liangliang

“…In this study, to reduce the consumption of natural sand and improve the utilization rate of desert sand in western China, while preparing 14 groups of…”
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DEM modeling direct shearing behavior of sand considering anti-rotation of particle by Wu, Liming, Qian, Jiangu, Xie, Liangfu, Qin, Yongjun

“…Considering anti-rotation of sand particles, two-dimensional Discrete Element Method (DEM) has been employed to reproduce direct shear behaviors of sand with…”
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Investigation on Cement-Stabilized Base with Recycled Aggregate and Desert Sand by Liu, Fengchao, Qin, Yongjun, Yang, Yiheng

“…This paper mainly explores the feasibility of using desert sand (DS) and recycled aggregate in cement-stabilized bases. Recycled coarse aggregate (RCA) and DS…”
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Seismic performance of a new precast concrete frame joint with a built-in disc spring by Chen, Qi, Qin, Yongjun, Xie, Yi, Yang, Chen

“…A new, precast concrete frame beam-column connection is designed in this research. The connection adopts the assembly mode of the precast column and seam area…”
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Research on mix design and mechanical performances of MK-GGBFS based geopolymer pastes using central composite design method by Yao, Ziqi, Luo, Ling, Qin, Yongjun, Cheng, Jiangbo, Qu, Changwei

“…In order to alleviate environmental problems and reduce CO 2 emissions, geopolymers had drew attention as a kind of alkali-activated materials. Geopolymers are…”
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Research on Performance Deterioration of Multi-Walled Carbon Nanotube-Lithium Slag Concrete under the Coupling Effect of Sulfate Attack and Dry-Wet Cycles by Zhang, Yifei, Qin, Yongjun, Guo, Zheyi, Li, Dongjin

“…Sulfate attack is one of the main factors affecting the durability of concrete structures. In recent years, multi-walled carbon nanotubes (MWCNTs) have…”
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Enhanced removal of ammonium from water by ball-milled biochar by Qin, Yongjun, Zhu, Xiaolong, Su, Qing, Anumah, Abdulraheem, Gao, Bin, Lyu, Wenqiang, Zhou, Xue, Xing, Ying, Wang, Bing

“…Novel biochar was prepared by ball milling using bamboo as raw material. The aim of this study was to find a good alternative way to improve the potentials of…”
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Prediction model of land surface settlement deformation based on improved LSTM method: CEEMDAN-ICA-AM-LSTM (CIAL) prediction model by Zhu, Shengchao, Qin, Yongjun, Meng, Xin, Xie, Liangfu, Zhang, Yongkang, Yuan, Yangchun

“…The uneven settlement of the surrounding ground surface caused by subway construction is not only complicated but also liable to cause casualties and property…”
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One-Part Alkali-Activated Materials: State of the Art and Perspectives by Qin, Yongjun, Qu, Changwei, Ma, Cailong, Zhou, Lina

“…Alkali-activated materials (AAM) are recognized as potential alternatives to ordinary Portland cement (OPC) to limit CO emissions and beneficiate several…”
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Study on mechanical properties of interbedded rock masses with microcrack based on thermal-mechanical coupling by Qiu, Liewang, Xie, Liangfu, Qin, Yongjun, Wang, Jianhu, Liu, Shan, Qian, Jiangu

“…The mechanical properties of deep rock masses are significantly influenced by temperature and other factors. The effect of temperature on the strength of deep…”
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Study on the Chloride-Sulfate Resistance of a Metakaolin-Based Geopolymer Mortar by Cheng, Jiangbo, Qin, Yongjun, Yao, Ziqi, Luo, Ling, Qu, Changwei

“…The chloride-sulfate corrosion environment of concrete is a significant engineering problem. This paper investigates the effect of the complete/semi-immersion…”
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Numerical simulation of size effect of defective rock under compression condition by Hu, Zeyu, Xie, Liangfu, Qin, Yongjun, Liu, Xuejun, Qian, Jiangu

“…The existence of various types of damage, small cracks, some large voids and the size of the sample in the rock will make the experimental results show great…”
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Analysis of deformation characteristics of reverse slope under the influence of reservoir water based on community detection by Xie, Liangfu, Cui, Jianbin, Qin, Yongjun, Qiu, Liewang

“…To study the deformation characteristics of reverse slope, this paper took the slope of Xiaodongcao as the research object, applied the Louvain community…”
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Study of snow cover/depth evolution characteristics in Tianshan region of China based on geographical partition by Qiao, Wei, Xie, Liangfu, Zhang, Jiabing, Qin, Yongjun, Liu, Xuejun

“…Based on the digital elevation data, snow depth and snow cover remote sensing data, this paper divides six snow evolution areas and geographical partitions,…”
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Cracks propagation characteristics of double-hole delay blasting in soft-hard composite rock mass by Cui, Jianbin, Xie, Liangfu, Qin, Yongjun, Liu, Xuejun, Wang, Jianhu, Qian, Jiangu

“…By researching the distance between blasthole and interface of soft-hard rock strata, as well as the time of delay detonation, blasting effect of the rock mass…”
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Influence of Accelerated Carbonation on the Performance of Recycled Concrete Containing Fly Ash, Recycled Coarse Aggregate, and Fine Aggregate by Yao, Ziqi, Luo, Ling, Qin, Yongjun, Bi, Yu, Liu, Fengchao, Yang, Yiheng

“…In order to improve the quality of solid waste utilization, this study simultaneously used recycled coarse aggregate and recycled fine aggregate to prepare…”
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The Fractal Characteristics of Ground Subsidence Caused by Subway Excavation by Qin, Yongjun, He, Peng, Zhang, Jiaqi, Xie, Liangfu

“…The issue of uneven ground settlement caused by the excavation of subway tunnels represents a significant challenge in the design and construction of subway…”
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Shear Strength Models for Reinforced Concrete Slender Beams: Comparative Analysis and Parametric Evaluation by Ma, Cailong, Guo, Zheyi, Wang, Wenhu, Qin, Yongjun

“…Shear failure of reinforced concrete (RC) members belongs to brittle failure and has always been concerned. In this paper, 16 existing shear strength models of…”
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Experimental Investigation on Shear Behavior of Dune Sand Reinforced Concrete Deep Beams by Guo, Zheyi, Qin, Yongjun, Zhang, Yifei, Li, Xiangyang

“…An experimental study on the shear behavior of dune sand reinforced concrete (DSRC) deep beams was conducted to determine the feasibility of using dune sand…”
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Displacement evolution of reverse-dip rock slope considering the change of the reservoir level by Xie, Liangfu, Zhang, Jiabing, Qin, Yongjun, Wang, Jianhu, Qiao, Wei, Qian, Jiangu

“…The fluctuation and periodic change of reservoir level are the important incentives that affect the stability of the reverse-dip rock slope. Based on the field…”
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