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| 1 | Similar simulation study on the deformation and failure of surrounding rock of a large section chamber group under dynamic loading显示文摘Large and super-large section chamber groups in coal mines are frequently affected by dynamic loads resulting from production activities such as roadway driving and blasting.The stability of the surrounding rock is poor,and it is difficult to control.In this paper,a similar simulation test was used to study the deformation and evolution laws of the surrounding rock of a triangle-shaped chamber group under different dynamic loads.The results showed that under dynamic loading,the vertical stress of the surrounding rock of the chamber group increased in an oscillatory form.The maximum stress concentration coefficient reached 4.09.The damage degree of the roof was greater than that of the two sides.The deformation of the roof was approximately 1.2 times that of the two sides.For the chamber closer to the power source,the stress oscillation amplitude of the surrounding rock was larger,and the failure was more serious.The force of the anchorage structure showed a phased increasing characteristic;additionally,the force of the anchorage structure on the adjacent side of the chambers was greater than that on the other side.This study reveals the deformation and failure evolution laws of the surrounding rock of large section chamber groups under dynamic loading. | Xuesheng Liu Shilin Song Yunliang Tan Deyuan Fan Jianguo Ning Xuebin Li Yanchun Yin | 2021 | International Journal of Mining Science and Technology2021，31，3： | 6 |
| 2 | Study on fusion characteristics of biomass ash显示文摘 | Niu Yanqing Tan Hongzhang Wang Xuebin | 2010 | Bioresource Technology2010，101，23： | 1 |
| 3 | Highly sensitive immunoassay based on Raman reporter-labeled immuno-Au aggregates and SERS-active immune substrate显示文摘 | Chunyuan Song Zhuyuan Wang Ruohu Zhang Jing Yang Xuebin Tan Yiping Cui | 2009 | Biosensors and Bioelectronics2009，，4： | 1 |
| 4 | Instability energy mechanism of super-large section crossing chambers in deep coal mines显示文摘The stress concentration and failure at chamber intersections in coal mine are intense,especially in deepburied,super-large section conditions.In this paper,the plastic radius of super-large section chamber under unequal pressure was corrected on the basis of the size effect.Then,stress and failure evolution of intersections under different crossing angles and equivalent angular bisectors were revealed.Furthermore,2 trajectory curves of failure and stress were analytically expressed,which divided the intersection into 5 influencing zones in the light of stress superposition degree.After determining instability trigger point and instability path,instability energy criterion of intersection can be obtained as K>1,which means that the external energy is greater than the sum of energy consumed by surrounding rock instability and supporting structure failure.Taking coal-gangue separation system of Longgu Coal Mine as example,it was found that there was instability risk under original parameters.For long-term stability,an optimization design method was proposed by considering safety factor,and optimal support scheme was obtained.Field monitoring showed intersections deformations were relatively small with the maximum of 125 mm,which verified the rationality of theoretical analysis.This study provides guidance for the stability control of the intersections under the same or similar conditions. | Deyuan Fan Xuesheng Liu Yunliang Tan Xuebin Li Purev Lkhamsuren | 2022 | International Journal of Mining Science and Technology2022，32，5： | 1 |
| 5 | Study on fusion characteristics of biomass ash 显示文摘 | NIU Yanqing TAN Houzhang WANG Xuebin | 2010 | Bioresource Technology2010，101，23： | 1 |
| 6 | DRAM:A DRL-based resource allocation scheme for MAR in MEC显示文摘Mobile Edge Computing(MEC)and 5G technology allow clients to access computing resources at the network frontier,which paves the way for applying Mobile Augmented Reality(MAR)applications.Under the MEC paradigm,MAR clients can offload complex tasks to the MEC server and enhance the human perception of the world by merging the received virtual information with the real environment.However,the resource allocation problem arises as a critical challenge in circumstances where several MAR clients compete for limited resources at the network frontier.In this paper,we aim to design an online resource allocation scheme on the MEC server that takes both high quality of experience and good fairness performance for MAR clients into consideration.We first formulate this problem as a Markov decision process and tackle the challenge of applying the deep reinforcement learning paradigm.Then,we propose DRAM,a Deep reinforcement learning-based Resource allocation scheme for mobile Augmented reality service in MEC.We also propose a self-adaptive algorithm on the MAR client that is derived based on the analysis of the MAR service to tackle client adaptation problems.The simulation results demonstrated that DRAM can provide high quality of experience and simultaneously achieve good fairness performance by coordinating with clients’adaptation algorithms. | Tongyu Song Xuebin Tan Jing Ren Wenyu Hu Sheng Wang Shizhong Xu Xiong Wang Gang Sun Hongfang Yu | 2023 | Digital Communications and Networks2023，9，3： | 0 |
| 7 | Rheological mechanical properties and its constitutive relation of soft rock considering influence of clay mineral composition and content显示文摘Rheological mechanical properties of the soft rock are afected signifcantly by its main physical characteristics-clay mineral.In this study,taking the mudstone on the roof and foor in four typical mining regions as the research object,frstly,the clay mineral characteristic was analyzed by the X-ray difraction test.Subsequently,rheological mechanical properties of mudstone samples under diferent confning pressures are studied through triaxial compression and creep tests.The results show that the clay mineral content of mudstone in diferent regions is diferent,which leads to signifcant diferences in its rheological properties,and these diferences have a good correlation with the content of montmorillonite and illite-montmorillonite mixed layer.Taking the montmorillonite content as an example,compared with the sample with 3.56%under the lower stress level,the initial creep deformation of the sample with 11.19%increased by 3.25 times,the viscosity coefcient and longterm strength decreased by 80.59%and 53.94%,respectively.Furthermore,based on the test results,the damage variation is constructed considering the montmorillonite content and stress level,and the M–S creep damage constitutive model of soft rock is established.Finally,the test results can be ftted with determination coefcients ranging from 0.9020 to 0.9741,which proves that the constitutive relation can refect the infuence of the clay mineral content in the samples preferably.This study has an important reference for revealing the long-term stability control mechanism of soft rock roadway rich in clay minerals. | Xuebin Li Xuesheng Liu Yunliang Tan Ai Chen Honglei Wang Xin Wang Shenglong Yang | 2023 | International Journal of Coal Science & Technology2023，10，4： | 0 |
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