FOLIATION

作品数：46被引量：32H指数：5
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相关作者：贾蒙李慧敏樊养余张菁孙恒义更多>>
相关机构：北京大学新乡学院西北工业大学南京大学更多>>
相关期刊：《Science China Earth Sciences》《Science China Mathematics》《Communications in Theoretical Physics》《Journal of Earth Science》更多>>
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Effects of foliation angle on mechanical characteristics of carbonaceous slate using uniaxial compression tests
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第4期2091-2108,共18页Yuanguang Zhu Xuanyao Wang Bin Liu Xuewei Liu Haoyuan Xue 
supported by the National Natural Science Foundation of China (Grant No.U22A20234);Hubei Province key Research and Development Project (Grant No.2023BCB121).
Carbonaceous slate is one kind of metamorphic rocks with developed foliation,which is frequently encountered during tunnel construction in Western China.The foliation plays a crucial role in the stability of tunnels.F...
关键词：Carbonaceous slate Mechanical behavior Fracture mechanism Acoustic emission ANISOTROPY 
Geochemistry of Neoproterozoic metavolcanic rocks from the Tahtai Logomiti area,Tigrai,Northern Ethiopia:Implication for petrogenesis and tectonic settings
《Acta Geochimica》2025年第1期128-144,共17页Azeb Gebremicale Mulugeta Alene Teklay Gidey 
The Tahtai Logomiti area is characterized by metavolcanic and metavolcaniclastic interbedded with clastic and carbonate metasedimentary rocks of Neoproterozoic age.New geological,petrographic,major,and trace elements ...
关键词：Deformation METAMORPHISM FOLIATION CALC-ALKALINE NEOPROTEROZOIC Arabian Nubian Shield 
Anisotropic shearing mechanism of Kangding slate:Experimental investigation and numerical analysis被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第5期1487-1504,共18页Ping Liu Quansheng Liu Penghai Deng Yucong Pan Yiming Lei Chenglei Du Xianqi Xie 
support from the Natural Science Foundation of China(Grant Nos.41941018,U21A20153,42177140).
The shear mechanical behavior is regarded as an essential factor affecting the stability of the surrounding rocks in underground engineering.The shear strength and failure mechanisms of layered rock are significantly ...
关键词：ANISOTROPY Empirical expression of cohesion foliation angles Combined finite-discrete element method(FDEM) Shear rate Element size 
The top-order energy of quasilinear wave equations in two space dimensions is uniformly bounded
《Fundamental Research》2024年第2期270-283,共14页Shijie Dong Philippe G.LeFloch Zhen Lei 
supported by the China Postdoctoral Science Foundation(2021M690702);The author Z.L.was in part supported by NSFC(11725102);Sino-German Center(M-0548);the National Key R&D Program of China(2018AAA0100303)National Support Program for Young Top-Notch Talents;Shanghai Science and Technology Program[21JC1400600 and No.19JC1420101].
Alinhac solved a long-standing open problem in 2001 and established that quasilinear wave equations in two space dimensions with quadratic null nonlinearities admit global-in-time solutions,provided that the initial d...
关键词：Quasilinear wave equation Global-in-time solution Uniform energy bounds Quadratic null nonlinearity Hyperboloidal foliation method Vector field method 
A New Boundary of the Mapping Class Group
《Acta Mathematica Sinica,English Series》2023年第5期885-903,共19页Li Xin LIU Yao Zhong SHI 
Supported by NSFC(Grant No.11771456)。
Based on the action of the mapping class group on the space of measured foliations,we construct a new boundary of the mapping class group and study the structure of this boundary.As an application,for any point in Tei...
关键词：Mapping class group measured foliation Teichmiller space 
MINIMAL FOLIATIONS FOR THE HIGH-DIMENSIONAL FRENKEL-KONTOROVA MODEL
《Acta Mathematica Scientia》2023年第2期564-582,共19页缪雪晴 葛建华 秦文新 王亚南 
supported by the National Natural Science Foundation of China(11701298)。
For the high-dimensional Frenkel-Kontorova(FK)model on lattices,we study the existence of minimal foliations by depinning force.We introduce the tilted gradient flow and define the depinning force as the critical valu...
关键词：Aubry-Mather theory Frenkel-Kontorova model minimal foliation depinning force gradient flow 
The Minkowski norm and Hessian isometry induced by an isoparametric foliation on the unit sphere被引量：1
《Science China Mathematics》2022年第7期1485-1516,共32页Ming Xu 
supported by Beijing Natural Science Foundation(Grant No.Z180004);National Natural Science Foundation of China(Grant Nos.11771331 and 11821101);Capacity Building for SciTech Innovation—Fundamental Scientific Research Funds(Grant No.KM201910028021)。
Let M_(t) be an isoparametric foliation on the unit sphere(S^(n−1)(1),g^(st))with d principal curvatures.Using the spherical coordinatesinduced by M_(t),we construct a Minkowski norm with the representation F=r√2f(t)...
关键词：Minkowski norm Hessian isometry Hessian metric isoparametric foliation Laugwitz Conjecture Legendre transformation 
A Note about Minimal Hypercones
《Acta Mathematica Sinica,English Series》2021年第11期1794-1802,共9页Yong Sheng ZHANG 
Supported by NSFC (Grant Nos. 11971352, 11601071);the S. S. Chern Foundation through IHES and a Start-up Research Fund from Tongji University。
This short note is concerned with a measure version criterion for hypersurfaces to be minimal.Certain natural flows and associated reflections for many minimal hypercones,including minimal isoparametric hypercones and...
关键词：Minimal hypercone measure invariant flow FOLIATION 
Role of stress,slenderness and foliation on large anisotropic deformations at deep underground excavations被引量：2
《International Journal of Mining Science and Technology》2021年第4期577-590,共14页Bo Hu Mostafa Sharifzadeh Xiating Feng Wenbin Guo Roo Talebi 
This work was supported by the National Natural Science Foundation of China(No.51839003;41801053),the Science and Technology Research Project of Chongqing Education Commission(KJQN201800724);the Natural Science Foundation of Chongqing(No.CSTC2019JCYJ-MSXMX0835),the Fund(Nos.SKLFSE201903 and SKLBT-19-003);the China Postdoctoral Science Foundation(No.2020M683710XB);the Key Scientific Research Project of Inner Mongolia Universities(No.NJZZ20300).
High stress concentrations around underground excavations can result in significant damage to deep hard-rock mines.These conditions can be the result of stopping activities,blasting,seismicity,or other mining activiti...
关键词：Large anisotropic deformation Buckling Deep mining Slenderness ratio Intercept angle Foliation orientation 
Higgs bundles over foliation manifolds
《Science China Mathematics》2021年第2期399-420,共22页Di Wu Xi Zhang 
supported by National Natural Science Foundation of China(Grant Nos.11625106,11571332 and 11721101)。
In this paper,we consider the stability,semi-stability and canonical metric structures on transverse Higgs bundles over a class of foliation manifolds.Also a transversal Bogomolov inequality is obtained.
关键词：foliation manifold Higgs bundle (approximate)transverse Hermitian-Einstein transversal Bogomolov inequality 
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