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国家自然科学基金(51378510): 作品数：25被引量：172H指数：8; 导出分析报告; 相关作者：杨小礼刘程蒋建国姚聪更多>>; 相关机构：中南大学更多>>; 相关期刊：《矿冶工程》《公路工程》《铁道科学与工程学报》《Journal of Central South University》更多>>; 相关主题：TUNNELPRESSURECOLLAPSEBASED_ONHOEK-BROWN更多>>; 相关领域：建筑科学交通运输工程矿业工程自动化与计算机技术更多>>

非均质各向异性土体中桩加固边坡稳定性研究被引量：8: 《铁道科学与工程学报》2023年第1期169-177,共9页张平韦家敬李嘉杨小礼; 国家自然科学基金资助项目(51378510)。; 岩土工程中自然土质边坡稳定性问题是常见的基础性问题之一。自然界中的边坡常常处于一个维持自身稳定的状态,即内部的抵抗力不小于外部扰动力,而内部抵抗力和外部扰动力则随着边坡形状、施加在边坡的外力的改变而发生动态变化。如果在...; 关键词：非均质性各向异性桩边坡稳定性

Estimation of active earth pressure based on pseudo-dynamic approach and discretization technique被引量：2: 《Journal of Central South University》2021年第9期2890-2904,共15页LUO Wen-jun GONG Chen-jie WANG Huan-yu YANG Xiao-li; Projects(51908557,51378510)supported by the National Natural Science Foundation of China。; A method combining the pseudo-dynamic approach and discretization technique is carried out for computing the active earth pressure.Instead of using a presupposed failure mechanism,discretization technique is introduce...; 关键词：pseudo-dynamic approach discretization technique upper-bound analysis INHOMOGENEITY seismic active earth pressure coefficient

Catastrophe theory-based risk evaluation model for water and mud inrush and its application in karst tunnels被引量：20: 《Journal of Central South University》2020年第5期1587-1598,共12页ZHU Jian-qun LI Tian-zheng; Project(51378510)supported by National Natural Science Foundation of China。; This paper presents a risk evaluation model of water and mud inrush for tunnel excavation in karst areas.The factors affecting the probabilities of water and mud inrush in karst tunnels are investigated to define the ...; 关键词：risk evaluation model water and mud inrush catastrophe theory karst area TUNNELING

3D stability assessment of stepped slopes in inhomogeneous soils被引量：4: 《Journal of Central South University》2020年第1期221-230,共10页LI Xiong-wei ZHU Jian-qun LI Zheng-wei YANG Xiao-li; Project(51378510)supported by the National Natural Science Foundation of China; Stability assessment of slopes has historically been performed assuming soils to be homogeneous in two-dimensional(2D) cases. In real cases, soils are usually inhomogeneous, and each slope collapse indicates a three-d...; 关键词：inhomogeneous soil stepped slope stability factor 3D horn failure mechanism

地质雷达正演模拟及在断层富水带超前地质预报的应用研究被引量：12: 《铁道科学与工程学报》2019年第11期2801-2808,共8页蒋建国刘程陈媛刘孙光; 国家自然科学基金资助项目(51378510); 在隧道工程施工期间,常遇到涌水、突泥等地质灾害。基于时域有限差分法,研究围岩相对介电常数和电导率对雷达效果的影响,并建立多层地质模型,研究断层破碎带在夹泥、充气、富水时的雷达图像特征规律,以此作为超前地质预报应用中地质雷...; 关键词：地质雷达时域有限差分法正演模拟超前地质预报富水带

Kinematic analysis of shallow tunnel in layered strata considering joined effects of settlement and seepage被引量：4: 《Journal of Central South University》2018年第2期368-378,共11页ZHANG Rui LU Si-ping; Project(51378510) supported by the National Natural Science Foundation of China;Project(2017zzts157) supported by the Innovation Foundation for Postgraduate of Central South University,China; The purpose of this work is to predict the state of collapse in shallow tunnel in layered strata by using a new curved failure mechanism within the framework of upper bound theorem.Particular emphasis is first given t...; 关键词：collapse mechanism layered rocks Hoek-Brown criterion seepage force surface settlement

Risk assessment model of tunnel water inrush based on improved attribute mathematical theory被引量：11: 《Journal of Central South University》2018年第2期379-391,共13页YANG Xiao-li ZHANG Sheng; Project(2013CB036004) supported by National Basic Research Program(973)of China;Project(51378510) supported by National Natural Science Foundation of China; Tunnel water inrush is one of the common geological disasters in the underground engineering construction.In order to effectively evaluate and control the occurrence of water inrush,the risk assessment model of tunnel...; 关键词：tunnel water inrush risk assessment model attribute mathematical theory nonlinear measurement function similar weight method

Energy analysis of rock plug thickness in karst tunnels based on non-associated flow rule and nonlinear failure criterion被引量：7: 《Journal of Central South University》2017年第12期2940-2950,共11页YANG Zi-han ZHANG Rui XU Jing-shu YANG Xiao-li; Project(2013CB036004) supported by the National Basic Research Program of China;Projects(51378510,51308072) supported by National Natural Science Foundation of China;Project(CX2014B069) supported by the Hunan Provincial Innovation Foundation for Postgraduate,China; The geological hazards, such as water inrush and mud outburst, are easily induced by the high water pressure caverns ahead of a karst tunnel face. Therefore, it is a pivotal issue to determine the reserved thickness o...; 关键词：karst tunnel water inrush safe thickness of rock plug upper bound theorem nonlinear failure criterion non-associated flow rule

Rock burst prediction based on genetic algorithms and extreme learning machine被引量：23: 《Journal of Central South University》2017年第9期2105-2113,共9页李天正李永鑫杨小礼; Project(2013CB036004)supported by the National Basic Research Program of China;Project(51378510)supported by the National Natural Science Foundation of China; Rock burst is a kind of geological disaster in rock excavation of high stress areas.To evaluate intensity of rock burst,the maximum shear stress,uniaxial compressive strength,uniaxial tensile strength and rock elastic...; 关键词：extreme learning machine feed forward neural network rock burst prediction rock excavation

Collapse analysis of tunnel floor in karst area based on Hoek-Brown rock media被引量：15: 《Journal of Central South University》2017年第4期957-966,共10页YANG Xiao-li LI Zheng-wei LIU Zheng-an XIAO Hai-bo; Project(2013CB036004)supported by the National Basic Research Program of China;Project(51378510)supported by the National Natural Science Foundation of China; Collapse shape of tunnel floor in Hoek-Brown rock media is investigated with the functional catastrophe theory. The stability of rock system in tunnel floor, which is determined by thickness, half collapse width, half...; 关键词：KARST functional CATASTROPHE theory HOEK-BROWN criterion safety thickness TUNNEL FLOOR upper BOUND

国家自然科学基金(51378510)