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Qiang Xie, Jun Duan, Yuxin Ban, Xiang Fu and Shilin Liu
Rock failure and instability usually lead to significant engineering disasters. This paper aims to establish an experimental failure criterion to predict rock failure via testing the laser vibration characteristics of marble specimens. Uniaxial compressi...
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Songtao Lv, Xiyan Fan, Chengdong Xia, Jianlong Zheng, Dong Chen and Lingyun You
In order to explore the moduli decay patterns of asphalt mixtures under different loading conditions, the nonlinear fatigue damage model was implemented in order to simulate the moduli decay patterns. Then, the direct tensile, indirect tensile, and uniax...
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Jianhua Lei, Fan Feng, Shu Xu, Weibin Wen and Xuhui He
The objective of the present research was to study the effect of temperature on the mechanical properties, failure mode and uniaxial compression constitutive relationship of a modified polyurethane concrete. A total of 24 cube and 27 prism specimens were...
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Qiong Yu, Peiyan Tang, Ziming Tang, Xingkui Zhang, Baoxiu Fan, Zhi Zhang and Zhenhai Chen
The grouted sleeve lapping connector proposed in this work has many advantages, including low cost, ease of construction, simple grout compaction, and a large diameter of the sleeve, and it can be used in precast concrete structures for resisting earthqu...
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Ximei Wei, Meng Wang, Hongwen Zhang, Lei Wang, Xintian Du, Lixin Chen and Shaohua Zhi
Machine-harvested seed cotton was taken as the research object to further clarify its creep performance, minimize its power consumption during the loading process, and obtain a better loading method. The uniaxial compression creep test was carried out us...
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Yuan Yuan, Lixin Wang, Zhirui Wu, Wensong Mou, Xiaotian Feng, Jinzhe Liu, Xiaohui Wang and Xiao Yang
Seawater-based concrete has been increasingly employed in offshore construction engineering, especially where the construction materials and freshwater are inconvenient to access. In this paper, a full-field compressive deformation evaluation scheme was ...
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Bin Hu, Zhen Zhang, Jing Li, Huiping Xiao and Kai Cui
The deterioration of rock mechanical properties under chemical-freezing-thawing-loading will seriously threaten the stability and safety of engineering rock mass, so the study of its constitutive model has very important theoretical and engineering appli...
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Gayoon Lee, Jun Hyoung Park, Khoa V. A. Pham, Chan Hee Lee and Kihak Lee
To properly restore masonry cultural heritage sites, the materials used for retrofitting can have a critical effect, and this requires standards for traditional Korean brick and lime mortar to be examined. This study experimentally investigated the mater...
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Yadong Zheng, Lianying Zhang, Peng Wu, Xiaoqian Guo, Ming Li and Fuqiang Zhu
The physical and mechanical properties of rocks change significantly after being subjected to high temperatures, which poses safety hazards to underground projects such as coal underground gasification. In order to investigate the effect of temperature o...
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Peizhao Zhong, Weiqing Jia, Wenwu Yang, Jianfei He, Erli Zhang, Dongyang Yu, Yuhang Xu, Jianpeng Chen, Feihu Peng, Guoxiang Zeng, Chen Zhang, Shiqi Zeng, Bo Gao, Haihai Pei and Zaiman Wang
The parameters of the discrete element simulation model for rice field soils serve as valuable data references for investigating the dynamic characteristics of the walking wheel of high-speed precision seeding machinery in paddy fields. The research spec...
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Zhongguang Sun, Qinghua Zhang, Jun Zhang, Yi Zhang and Pengfei Wang
To study the mechanical damage characteristics of rock under the effect of subversion, a series of mechanical experiments, including both uniaxial and triaxial mechanical compression experiments under various levels of water content were performed. In th...
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Guichuan Li, Haiyu Li, Xuan Li, Zhichao Gong, Qinghua Yang, Yuxiang Huang and Zuoli Fu
Aiming at the lack of accurate and reliable discrete element simulation parameters for the design of buckwheat metering devices and seeders based on the discrete element simulation method, an accurate buckwheat seed model was obtained by calibrating the ...
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Yinge Zhu, Huiyuan Chen, Anqi Li, Yue Wu and Xiaoli Zhang
The mechanical behaviors of rock masses are significantly affected by the distribution and shape of the holes in it. In this research, the fracture mechanism and the shear properties of rock masses containing holes were investigated by the cohesive zone ...
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Georgia E. Thermou and Sousana Tastani
This paper investigates experimentally the structural performance of substandard reinforced concrete (RC) short columns confined with steel-reinforced grout (SRG) jackets under monotonically increasing uniaxial compression. The study comprised 24 square ...
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Na Wu, Zhengzhao Liang, Yan Tao, Ting Ai and Guijie Li
The existence of fractures has a significant influence on the mechanical properties of a rock mass. The sensitivity of the rock mass?s mechanical properties to the fracture?s geometric parameters is conducive to improving the measurement accuracy of frac...
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Yongjian Zhu, Peng Li, Ping Wang, Chengcheng Mei, Heng Ren and Xizhi Wang
The mining of deep coal resources occurs in a high-stress geological environment as well as an engineering environment of rock excavation and unloading. Research on the re-bearing capacity characteristics and damage mechanism of rock masses damaged by pe...
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Shang Yang, Jun Wang, Jianguo Ning and Pengqi Qiu
To investigate the effect of the pure coal/rock strength on the mechanical behavior, failure behavior, and energy evolution of coal-rock combined (CRC) specimens, an AG-X250 Shimadzu Precision Universal Test was used to conduct uniaxial compressive loadi...
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D. S. Agustawijaya
Pág. pp. 9 - 14
Soft rock is a term that usually refers to a rock material with a uniaxial compressive strength (UCS) less than 20 MPa. This low strength range might be influenced by physical characteristics, such as size, saturation, weathering and mineral content. A n...
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Jun Zhang, Shengdong Liu, Cai Yang and Juanjuan Li
The deformation and fracturing of coal rock is a crucial part of coal and rock dynamic disasters and is accompanied by variations in the electrical field of the rock. In this study, the self-potential characteristics of coal rock were measured to dynamic...
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Zhe Xiang, Nong Zhang, Zhengzheng Xie and Chenghao Zhang
To study the damage and destruction behavior of small coal pillars in coal mine roadway driving along gobs under long-term in-situ stress and multiple engineering disturbances, an unconfined compression experiment under a discontinuous cyclic load was de...
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