DISCONTINUITIES

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A human-machine interaction method for rock discontinuities mapping by three-dimensional point clouds with noises
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1646-1663,共18页Qian Chen Yunfeng Ge Changdong Li Huiming Tang Geng Liu Weixiang Chen 
supported by the National Key R&D Program of China(No.2023YFC3081200);the National Natural Science Foundation of China(No.42077264);the Scientific Research Project of PowerChina Huadong Engineering Corporation Limited(HDEC-2022-0301).
Rock discontinuities control rock mechanical behaviors and significantly influence the stability of rock masses.However,existing discontinuity mapping algorithms are susceptible to noise,and the calculation results ca...
关键词：Rock discontinuities Three-dimensional(3D)point clouds Discontinuity identification Orientation measurement Human-machine interaction 
Upper mantle discontinuity structure beneath the Hindu Kush:Insights into dynamics of the Indian slab
《Science China Earth Sciences》2025年第3期720-729,共10页Qinghui CUI Yuanze ZHOU Yuan GAO Lijun LIU 
supported by the National Natural Science Foundation of China (Grant Nos. 42074101, 42374113, 42074103);the Central Public-interest Scientific Institution Basal Research Fund (Grant Nos. CEAIEF20220201, CEAIEF20230204);the Science & Technology Fundamental Resources Investigation Program (Grant No. 2023FY101500);the TianHe Qingsuo Special Fund Project。
Upper mantle discontinuities play an important role in slab dynamics and mantle responses in the subduction zones.Despite increasing numbers of seismological observations in the Hindu Kush, fine structures of mantle d...
关键词：Hindu Kush subduction zone Upper mantle discontinuities Indian slab Hot slab-entrained mantle N-th root slant stacking 
A new integrated intelligent computing paradigm for predicting joints shear strength
《Geoscience Frontiers》2024年第6期176-193,共18页Shijie Xie Zheyuan Jiang Hang Lin Tianxing Ma Kang Peng Hongwei Liu Baohua Liu 
This paper gets its funding from Projects(42277175);supported by National Natural Science Foundation of China,Project(2023JJ30657);supported by Hunan Provincial Natural Science Foundation of China and the National Key Research,Hunan Provincial Department of natural resources geological exploration project(BSDZSB43202403);The First National Natural Disaster Comprehensive Risk Survey in Hunan Province(2022-70;the National Key Research and Development Program of China-2023 Key Special Project(No.2023YFC2907400).
Joints shear strength is a critical parameter during the design and construction of geotechnical engineering structures.The prevailing models mostly adopt the form of empirical functions,employing mathematical regress...
关键词：Rock discontinuities Joints shear strength Metaheuristic optimization algorithms Machine learning 
Discontinuities of Banana Integrals in Dispersion Relation Representation
《Chinese Physics Letters》2024年第11期12-16,共5页Xu-Liang Chen Peng-Fei Yang Wei Chen 
supported by the National Natural Science Foundation of China(Grant No.12175318);the Natural Science Foundation of Guangdong Province of China(Grant No.2022A1515011922).
We derive the discontinuities of banana integrals using the dispersion relation iteratively,and find a series of identities between the parameterized discontinuities of banana integrals(p-DOBIs).Similar to elliptic in...
关键词：DISPERSION INTEGRALS enable 
Numerical and theoretical study of large-scale failure of strata overlying sublevel caving mines with steeply dipping discontinuities
《International Journal of Minerals,Metallurgy and Materials》2024年第8期1799-1815,共17页Kaizong Xia Zhiwei Si Congxin Chen Xiaoshuang Li Junpeng Zou Jiahao Yuan 
Financial support for this work was provided by the Youth Fund Program of the National Natural Science Foundation of China (No. 42002292);the General Program of the National Natural Science Foundation of China (No. 42377175);the General Program of the Hubei Provincial Natural Science Foundation, China (No. 2023AFB631)
The deformation and fracture evolution mechanisms of the strata overlying mines mined using sublevel caving were studied via numerical simulations.Moreover,an expression for the normal force acting on the side face of...
关键词：sublevel caving mines universal distinct element code(UDEC)numerical approach large-scale ground movement steeply dipping superimposed cantilever beam toppling failure 
Experimental investigation on shear strength deterioration at the interface between different rock types under cyclic loading
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第8期3063-3079,共17页Qiong Wu Zhiqi Liu Huiming Tang Liangqing Wang Xiaoxue Huo Zhen Cui Shiyu Li Bo Zhang Zhiwei Lin 
supported by the National Natural Science Foundation of China(Grant Nos.42377182,52079133 and 41931295).
The shear strength deterioration of bedding planes between different rock types induced by cyclic loading is vital to reasonably evaluate the stability of soft and hard interbedded bedding rock slopes under earthquake...
关键词：Discontinuities with different joint wall material(DDJM) Discontinuities with identical joint wall material(DIJM) Cyclic shear test Shear strength deterioration Joint surface morphology Shear displacement amplitude Shear rate Normal stress 
Scale-space effect and scale hybridization in image intelligent recognition of geological discontinuities on rock slopes被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第4期1315-1336,共22页Mingyang Wang Enzhi Wang Xiaoli Liu Congcong Wang 
supported by the National Natural Science Foundation of China(Grant No.52090081);the State Key Laboratory of Hydro-science and Hydraulic Engineering(Grant No.2021-KY-04).
Geological discontinuity(GD)plays a pivotal role in determining the catastrophic mechanical failure of jointed rock masses.Accurate and efficient acquisition of GD networks is essential for characterizing and understa...
关键词：Image processing Geological discontinuities Deep learning MULTI-SCALE Scale-space theory Scale hybridization 
Slope Stability Analysis: Case of the West Wall of the EMZ Pit at the Essakane Gold Mine in Burkina Faso (West Africa)
《Geomaterials》2023年第4期109-123,共15页Hamma Fabien Yonli Michée Banyua Lompo Nicolas Kagambega Pierre Sawadogo 
Knowledge of the state of stability of mining pits is both a basic condition, an essential axis and a safety benchmark for mining operations. This stability is largely based on the knowledge of the rock mass shelterin...
关键词：Stability CARTOGRAPHY DISCONTINUITIES Safety Factor Essakane 
Structures of Interaction of Non-selfsimilar Elementary Waves for 2D Scalar Conservation Law with Two Initial Discontinuities
《Acta Mathematicae Applicatae Sinica》2023年第3期465-490,共26页Gui-qin QIU Gao-wei CAO Xiao-zhou YANG 
supported in part by the National Natural Science Foundation of China(Grant 11471332);supported in part by the National Natural Science Foundation of China(Grant 11701551)。
In this paper,we investigate the global solution and the structures of interaction between two dimensional non-selfsimilar shock wave and rarefaction wave of general two-dimensional scalar conservation law in which fl...
关键词：Riemann problem shock wave rarefaction wave wave interaction 
On the Vortex Sheets of Compressible Flows
《Communications on Applied Mathematics and Computation》2023年第3期967-986,共20页Robin Ming Chen Feimin Huang Dehua Wang Difan Yuan 
R.M.Chen is supported in part by the NSF grant DMS-1907584;F.Huang was supported in part by the National Center for Mathematics and Interdisciplinary Sciences,Academy of Mathematics and Systems Science,Chinese Academy of Sciences and the National Natural Sciences Foundation of China under Grant Nos.11371349 and 11688101;D.Wang was supported in part by the NSF under grant DMS-1907519;D.Yuan was supported in part by the National Natural Sciences Foundation of China under Grant No.12001045 and the China Postdoctoral Science Foundation under Grant Nos.2020M680428 and 2021T140063.
This paper provides a review of the recent results on the stability of vortex sheets in compressible flows.Vortex sheets are contact discontinuities of the underlying flows.The vortex sheet problem is a free boundary ...
关键词：Vortex sheets Contact discontinuities Stability and instability Loss of derivatives Two-phase flows Elastic flows 
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