Lei Wang

Experimental Study on Seismic Performance of Composite Coal Gangue Concrete Prefabricated Grid Wall

Qing Xin Qin, Yubo Sun, Chenghua Zhang, Zhigang Gao et autres

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Study on Mechanical Properties and Damage Constitutive Model of Rock Mass with Different Fracture Lengths

Huimei Zhang, Shiguan Chen, Chao Yuan, Xiangzhen Meng et autres

Abstract This article, on the basis of experimental research, combines theoretical analysis and numerical calculation. In addition, the research, while taking into consideration different fracture lengths, confining pressure of rock mass mechanics properties, and behavior of evolution law, establishes and reflects the …

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Numerical Analysis of Soft Surrounding Rock Deformation in Freezing Shaft Sinking based on Temperature Partition

Yue Hong Qin, Lei Wang, Hongming Su

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Experimental Study on the Damage and Deterioration Behaviour of Deep Soft Rock under Water-Rock Interaction

Zenghui Zhao, Hao Liu, Xianzhou Lyu, Lei Wang et autres

The ageing disintegration, the damage, and failure mechanism of water-saturated soft rock are of significance to hazard prevention for deep mining. In this paper, indoor experiments, including disintegration behaviour tests in water, uniaxial compression failure tests of rock samples with different water …

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Dynamic Splitting Behavior and the Constitutive Relationship of Frozen Sandstone Containing a Single Fissure

Zhao Tao, Gengshe Yang, Lei Wang, Hailiang Jia et autres

Fractured sandstone is widely distributed in mining areas throughout western China where the artificial freezing method is extensively adopted to construct vertical shafts. Blasting and excavation generate stress waves and break frozen fractured sandstone. Among the failure modes of frozen fractured rocks, …

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High-temperature vanadium-free catalyst for selective catalytic reduction of NO with NH 3 and theoretical study of La 2 O 3 over CeO 2 /TiO 2

Changfei Ye, Huidong Xie, Lei Wang, Bin Zheng et autres

SCR catalysts of the La 2 O 3 –CeO 2 /TiO 2 series for de-NO x with NH 3 were prepared and optimized. The Ce 10 La 2 catalyst has a great NO conversion efficiency, good N 2 selectivity, good SO 2 …

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Study on Mechanical Properties and Energy Dissipation of Frozen Sandstone under Shock Loading

Lei Wang, Yue Hong Qin, Haibin Jia, Hongming Su et autres

In order to understand the mechanical properties and energy dissipation law of frozen sandstone under impact loading, the cretaceous water-rich red sandstone was selected as the research object to conduct impact tests at different freezing temperatures (0°C, −10°C, −20°C, and −30°C). The …

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Study on Dynamic Constitutive Model of Weakly Consolidated Soft Rock in Western China

Lei Wang, Hongming Su, Yue Hong Qin, Shiguan Chen

To obtain the impact mechanical response and establish the dynamic damage constitutive relationship of frozen sandstone at low temperature conditions, the impact test of Cretaceous red sandstone under different temperatures was conducted using a split Hopkinson pressure bar (SHPB) device. According to …

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Nonlinear Dynamic Constitutive Model of Frozen Sandstone Based on Weibull Distribution

Lei Wang, Hongming Su, Shiguan Chen, Yue Hong Qin

To obtain the dynamic mechanical properties of frozen sandstone at different temperatures (i.e., 20°C, −10°C, −20°C, and −30°C), dynamic uniaxial compression tests of saturated sandstone are conducted using a split‐Hopkinson pressure bar. The experimental results demonstrated that the brittleness of the saturated …

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The analysis of journal of Xi'an university of science and technology based on big data platform

Anxin Zhao, Lei Wang, Xiu Li, Jiaqing Liu et autres

The published papers on the journal of xi'an university of science and technology from 2007 to 2016 were collected from CNKI in this article. A total of 1511 papers were retrieved. These parameters were acquisited, such as title, author, organ, keyword, summary, …

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Discussion of “Geometrical Method for Evaluating the Internal Instability of Granular Filters Based on Constriction Size Distribution” by Buddhima Indraratna, Jahanzaib Israr, and Cholachat Rujikiatkamjorn

Lei Wang

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The service model of the subject librarian in research institution library

Junfeng Yu, Lei Wang