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Compared and analyzed the petrology and geochemistry of felsic rock mass enriches rare and non-ferrous

Wang Zixi,Ling Jinlan and Song Yanfang

Strategic Study of CAE 2015, Volume 17, Issue 2,   Pages 50-58

Abstract: of these rock masses are small（area＜10 km2）.High SiO2， K2O， K2O/Na2O are benefit of enriching Mo in the magma which rock mass enriches Cu， Mo；highTiO2 and low P2O5 are benefit of enriching in the magma which rock mass enrich Nb， Ta.The enriching Cu of rock mass is S type granite，but the enriching Mo of rock mass is transiting fromrock mass has A type， I type and S type granites.

Keywords： felsic rock mass；rare metal；non-ferrous metal；formation of rock；small rock mass    

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Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 273-287 doi: 10.1007/s11709-018-0459-5

Abstract: overview of the most popular state-of-the-art computational methods available for modelling fracture in rockmethods which can be found elsewhere but particularly address their potential in modelling fracture in rockFurthermore, we also address ‘general’ difficulties that may arise for simulating fracture in rock andfractured rock.

Keywords： numerical modelling     method development     rock mechanics     fractured rock     rock fracturing    

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Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0035-5

Abstract: Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Keywords： finite element power     stability rock escarpment    

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Aspects of rock permeability

Lianyang ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 102-116 doi: 10.1007/s11709-013-0201-2

Abstract: Effective evaluation of rock permeability is required in different energy, engineering and environmentalAlthough much research has been conducted on rock permeability, it is still one of the most difficulttasks for practicing rock engineers to accurately determine rock permeability.Based on a comprehensive literature review, this paper outlines the key aspects of rock permeability, and anisotropy of rock permeability.

Keywords： rock     permeability     discontinuity     stress     temperature     scale effect     anisotropy    

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Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 63-70 doi: 10.1007/s11709-010-0016-3

Abstract: Laboratory as well as field tests on solid rock-fill material were performed before the beginning ofDuring the construction the properties of the available rock-fill changed from solid to soft materials

Keywords： embankment dam     bituminous concrete membrane     rock-fill material properties     deformation behavior    

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interface adhesion factor on the bearing capacity of strip footing placed on cohesive soil overlying rock

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1494-1503 doi: 10.1007/s11709-021-0768-y

Abstract: The problem related to bearing capacity of footing either on pure soil or on pure rock mass has beenCurrently, no study deals with the bearing capacity of strip footing on a cohesive soil layer overlying rockprogramming, the ultimate bearing capacity of a strip footing located on a cohesive soil overlying rockdifferent values of interface adhesion factor (αcr) between the cohesive soil and rockmass strength parameters of beneath rock mass layer.

Keywords： bearing capacity     soil-rock interface     Hoek−Brown yield criterion     plasticity     limit analysis    

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Mechanical properties of rock materials with related to mineralogical characteristics and grain size

Wenjuan SUN, Linbing WANG, Yaqiong WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 322-328 doi: 10.1007/s11709-017-0387-9

Abstract: Mechanical properties of rock materials are related to textural characteristics.Textural characteristics of rock materials are influenced by the following factors: mineral composition

Keywords： Mechanical properties     rock material     texture     mineral characteristics    

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Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 947-960 doi: 10.1007/s11709-020-0638-z

Abstract: illustrate the reasons for this phenomenon, a numerical model on the freezing processes of saturated rockNumerical results show that a frozen shell that blocks the migration of water in crack to rock developsHowever, the migration path of water in crack to the unfrozen rock under freezing front exists underThe freezing process and permeability of rock together determine the migration of water in crack andTherefore, the freezing condition and rock permeability determine the frost heave of rock with crack

Keywords： frost heave     rock with crack     freezing process     freezing condition     frost heave mode    

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On the seismic stability analysis of reinforced rock slope and optimization of prestressed cables

Wenbo ZHENG, Xiaoying ZHUANG, Yongchang CAI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 132-146 doi: 10.1007/s11709-012-0152-z

Abstract: The evaluation of the seismic stability of high rock slopes is of vital importance to ensure the safeanalysis based on the finite element method is developed to evaluate the seismic stability of reinforced rockThe method is applied to analyze a high rock slope in south-west China and the optimization of cables

Keywords： high rock slope     reinforced system     optimization     prestressed cable     seismicity    

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Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Frontiers of Structural and Civil Engineering   Pages 1370-1386 doi: 10.1007/s11709-023-0947-0

Abstract: The tunnel boring machine (TBM) is typically used in hard-rock tunnel excavation.Owing to the unsatisfactory adaptability of TBM to the surrounding rock, when crossing high-strengthTherefore, high-pressure waterjet technology should be applied to assist in rock breaking for efficientnozzle diameter, and nozzle speed on cutting are investigated via laboratory experiments of cutting hard rockThe results show that high-pressure waterjets are highly efficient for rock breaking and are suitable

Keywords： tunnel boring machine     hard-rock cutting     free face     disc cutter     rock-cutting efficiency    

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Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 76-87 doi: 10.1631/FITEE.1800557

Abstract:

Our study is concerned with the time-varying formation tracking problem for second-order multi-agentnonlinear dynamics and external disturbance, and the states of the followers form a predefined time-varying formationThen we propose a novel ESO based time-varying formation tracking protocol.It is proved that, under the proposed protocol, the ESO estimation error and the time-varying formation

Keywords： Multi-agent system     Time-varying formation     Formation tracking     Nonlinear dynamics     Extended state observer    

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The control factors and distribution laws of volcanic oil and gas reservoir in China

Hou Lianhua,Zhu Rukai,Zhao Xia,Pang Zhenglian,Luo Xia,Mao Zhiguo

Strategic Study of CAE 2012, Volume 14, Issue 6,   Pages 77-86

Abstract:

There are mainly 3 sets of volcanic rocks in sedimentary basins of China: the strata of Carboniferous-Permian, the strata of Jurassic-Cretaceous and the strata of Palaeogene-Neogene. Volcanic rocks distributed widely and developed associated with hydrocarbon source rocks form good combination of source-reservoir-cap assemblage. In the eastern basins of China, intermediate-acidic volcanic rocks and primary type reservoir are mainly developed. In the western basins of China, mid-mafic volcanic rocks and weathering crust type reservoir are often developed. Almost all of the lithology and lithofacies of volcanic rocks can form effective reservoir. And the reservoir characteristic of weathering crust type is better than that of primary type. Lithological reservoir and fault-lithological reservoir are often developed in the eastern basins of China. Stratum reservoir, structure-stratum reservoir and structure-lithological-stratum combined reservoir are often developed in the western basins of China. In Songliao Basin, deep continued settlement faults control the distribution of gas regional; hydrocarbon generation faults trough controls the gas distribution in the fault depression; fault structure regions near the hydrocarbon generation faults trough are the gas enriched accumulation region, and high-quality volcanic reservoir controls gas accumulation. In the north part of Xinjiang area, the Carboniferous residual hydrocarbon-generation sags control area distribution of oil and gas; weathering crust scale controls the hydrocarbon accumulating scale and degree; the type of weathering crust-stratum traps could control reservoir forming effectively; the positive tectonic background controls oil and gas migration and accumulation. This paper points out that the area of volcanic rocks for exploration is 3.6×105 km2 in China, and the predicted equivalent reserve in volcanic rocks is above 6×109 t.

Keywords： volcanic rock reservoir     igneous reservoir     reservoir formation control factors     reservoir distribution    

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Some Challenges of Deep Mining Review

Charles Fairhurst

Engineering 2017, Volume 3, Issue 4,   Pages 527-537 doi: 10.1016/J.ENG.2017.04.017

Abstract: This places increased focus on “ground control” and on rock mechanics to define the depththe deformational behavior of rock masses that are anisotropic and discontinuous—attributes thatwere described as the defining characteristics of in situ rock by Leopold Müller, the presidentand founder of the International Society for Rock Mechanics (ISRM), in 1966.For the first time, mining—and rock engineering—will have its own mechanics-based “

Keywords： Deep mining     Rock discontinuities     Synthetic rock mass     Mineral resources     Rock mechanics    

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3D finite element prediction of chip flow, burr formation, and cutting forces in micro end-milling of

A. DAVOUDINEJAD, P. PARENTI, M. ANNONI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 203-214 doi: 10.1007/s11465-017-0421-6

Abstract: performed under different cutting conditions to obtain realistic numerical predictions of chip flow, burr formationadvantages, such as capability to easily handle any type of tool geometry and any side effect on chip formation

Keywords： 3D finite element modeling     micro end-milling     cutting force     chip formation     burr formation    

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Simulation of viscoelastic behavior of defected rock by using numerical manifold method

Feng REN, Lifeng FAN, Guowei MA

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 199-207 doi: 10.1007/s11709-011-0102-1

Abstract: Numerical simulations of longitudinal wave propagation in a rock bar with microcracks are conducted byis carried out by simulations of a longitudinal stress wave propagating through intact and cracked rockThe behavior of the stress wave traveling in a one-dimensional rock bar with randomly distributed microcracksIt is revealed that the highly defected rock bar has significant viscoelasticity to the stress wave propagationThe storage and loss moduli of the defected rock are also affected by the microcrack properties; however

Keywords： stress wave propagation     defected rock     numerical manifold method     viscoelastic behavior     storage modulus    

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Title Author Date Type Operation

Compared and analyzed the petrology and geochemistry of felsic rock mass enriches rare and non-ferrous

Wang Zixi,Ling Jinlan and Song Yanfang

Journal Article

Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

Journal Article

Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Journal Article

Aspects of rock permeability

Lianyang ZHANG

Journal Article

Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Journal Article

interface adhesion factor on the bearing capacity of strip footing placed on cohesive soil overlying rock

Journal Article

Mechanical properties of rock materials with related to mineralogical characteristics and grain size

Wenjuan SUN, Linbing WANG, Yaqiong WANG

Journal Article

Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Journal Article

On the seismic stability analysis of reinforced rock slope and optimization of prestressed cables

Wenbo ZHENG, Xiaoying ZHUANG, Yongchang CAI

Journal Article

Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Journal Article

Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Journal Article

The control factors and distribution laws of volcanic oil and gas reservoir in China

Hou Lianhua,Zhu Rukai,Zhao Xia,Pang Zhenglian,Luo Xia,Mao Zhiguo

Journal Article

Some Challenges of Deep Mining

Charles Fairhurst

Journal Article

3D finite element prediction of chip flow, burr formation, and cutting forces in micro end-milling of

A. DAVOUDINEJAD, P. PARENTI, M. ANNONI

Journal Article

Simulation of viscoelastic behavior of defected rock by using numerical manifold method

Feng REN, Lifeng FAN, Guowei MA

Journal Article