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Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Strategic Study of CAE 2005, Volume 7, Issue 3,   Pages 78-83

Abstract: Fill Dams (SL274-2001) require excavating into the slightly weathered rock mass for the core wall andThe spreading gradation earth-rock fill dam with crushed-stone-earth core wall is 123m high, and thehighly weathering natural depth of the phyllite and sandstone at abutments on both bank is 14.6～66.4mIt is practically excavated into the highly weathering zone, which can not meet with the SpecificationThe treatment scheme for the highly weathering rock mass on both abutments and grouting tests and grouting

Keywords： Qiaoqi Hydropower Station     earth-rock dam     treatment of abutment     highly weathered rock mass     consolidation    

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Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method

Youjun NING, Xinmei AN, Jun YANG, Guowei MA,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 223-232 doi: 10.1007/s11709-010-0022-5

Abstract: Rock blasting is a dynamic process accompanied with the propagations of shock waves and the dispersionThis paper adopts the discontinuous deformation analysis (DDA) method to simulate the rock blasting processThe blasting process in jointed rock mass is simulated by application of the explosion gas pressure onThe whole process including the explosion gas dispersion, borehole expansion, rock mass failure and cast, and the formation of the final blasting piles in rock blasting are well reproduced numerically.

Keywords： blast crater     jointed rock mass     explosion gas pressure     discontinuous deformation analysis (DDA) method    

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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:

The felsic rock mass always enrich Cu，Mo，W，Sn，Nb，Ta ，then become an rare and non-ferrous metals deposit.MostHigh 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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Basic problems for dynamic deformation and fracture of deep rock mass

Li Jie,Wang Mingyang,Zhang Ning,Fan Pengxian

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 71-79

Abstract:

Research on nonlinear mechanical behavior for deep rock mass has becomeThe difficulty lies in how to describe the rock mass properties in large dynamic deformation and failureThe test reviews the research results for failure mechanism of deep rock mass, basic problems in dynamicAnd it shows that: The problems of deep rock mass are in four dimensional spaces, it is the evolutionTo study on the deformation and failure mechanism of deep rock mass, the concept of time and space must

Keywords： deep rock mass     dynamic fracture     time effect     damage fracture     rock burst     zonal disintegration    

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

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 beenmass.mass is determined in this study.mass at failure.mass strength parameters of beneath rock mass layer.

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

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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 development of the synthetic rock mass (SRM) in 2008 provides researchers with the ability to analyzewere 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.engineering and their validity for the prediction of rock mass behavior beyond current experience; and

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

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Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1372-1389 doi: 10.1007/s11709-021-0772-2

Abstract: the spatiotemporal evolution characteristics of crack extension of soft and hard composite laminated rockThe effects of different rock combination methods and prefabricated fissures with different orientationsThe test results show that the damage mode of SHCLRM is related to the combination mode of rock layerscharacteristics, and the state of crack development can be inferred from this signal to provide early warning for rock

Keywords： soft−hard composite layered rock mass     double cracks     crack evolution     acoustic emission     digital image    

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A integrated survey technology to rock mass’s deep crevices grown features in Xihoumen Bridge northern

Liang Long,Pan Yongjian,Wang Wugang,Ren Jianxin

Strategic Study of CAE 2010, Volume 12, Issue 7,   Pages 28-32

Abstract:

In the investigation of rock mass's deep joints and fissures'

Keywords： Xihoumen Bridge     rock mass deep crevice grown characteristic     integrated survey technology    

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Hypoplastic constitutive modeling of wetting deformation of weathered rockfill materials

Erich BAUER, Zhongzhi FU, Sihong LIU,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 78-91 doi: 10.1007/s11709-010-0011-8

Abstract: The wetting deformation of weathered rockfill materials has been attracting growing attention from both

Keywords： rockfill dams     weathered granular materials     hypoplasticity     solid hardness     creep     stress relaxation    

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Structural design and mechanical responses of closely spaced super-span double tunnels in strongly weathered

Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 685-703 doi: 10.1007/s11709-022-0824-2

Abstract: comprehensively monitored and analyzed, including the vault settlement, horizontal convergence, surrounding rock

Keywords： double tunnels     super-span     structural design     mechanical response     numerical simulation     field monitoring    

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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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Early Identification of Abnormal Regions in Rock-Mass Using Traveltime Tomography Article

Longjun Dong,Zhongwei Pei,Xin Xie,Yihan Zhang,Xianhang Yan

Engineering 2023, Volume 22, Issue 3,   Pages 191-200 doi: 10.1016/j.eng.2022.05.016

Abstract: engineering, this paper proposes a tomography method for abnormal region identification in complex rock-mass

Keywords： Underground engineering     Traveltime tomography     Complex structures     Abnormal region identification     Ray tracing    

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Technical Methods to Make Safety Monitoring and Forecast Models for the Foundation of Long Suspension Bridges

Chen Zhijian,Zhou Shizhong ,Zhuo Jiashou

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 20-24

Abstract:

After stating the complexity of stability problem and the importance and technical difficulty to make safety monitoring model for layered rocky slope of foundation of the south tower and resistance body of south anchorage in Jiangyin Yangtze Bridge, this paper introduces the technical methods to wake the model of tower load distribution, the monitoring and alarm model of residual anchorage thrust, j. e. , cause factor of slope stability, the comprehensive fuzzy evaluation model for slope safety based on external deformation observation results and the forecast model for the stability of layered rocky slope based on observed internal shear displacement.

Keywords： layered rock mass     slope     monitoring and forecast model     technical methods    

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Assessment of vaccination strategies against highly pathogenic avian influenza in China

Honglei SUN,Jinhua LIU

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 277-281 doi: 10.15302/J-FASE-2014036

Abstract: Vaccination for highly pathogenic avian influenza (HPAI) has been implemented in China for a decade,

Keywords： highly pathogenic avian influenza     vaccine     vaccination     control    

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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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Title Author Date Type Operation

Treatment of Highly Weathered Rock Mass at the Abutment of Earth-Rock Dam in Qiaoqi Hydropower Project

Wang Shougen

Journal Article

Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method

Youjun NING, Xinmei AN, Jun YANG, Guowei MA,

Journal Article

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

Basic problems for dynamic deformation and fracture of deep rock mass

Li Jie,Wang Mingyang,Zhang Ning,Fan Pengxian

Journal Article

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

Journal Article

Some Challenges of Deep Mining

Charles Fairhurst

Journal Article

Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Journal Article

A integrated survey technology to rock mass’s deep crevices grown features in Xihoumen Bridge northern

Liang Long,Pan Yongjian,Wang Wugang,Ren Jianxin

Journal Article

Hypoplastic constitutive modeling of wetting deformation of weathered rockfill materials

Erich BAUER, Zhongzhi FU, Sihong LIU,

Journal Article

Structural design and mechanical responses of closely spaced super-span double tunnels in strongly weathered

Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG

Journal Article

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

Ali JENABIDEHKORDI

Journal Article

Early Identification of Abnormal Regions in Rock-Mass Using Traveltime Tomography

Longjun Dong,Zhongwei Pei,Xin Xie,Yihan Zhang,Xianhang Yan

Journal Article

Technical Methods to Make Safety Monitoring and Forecast Models for the Foundation of Long Suspension Bridges

Chen Zhijian,Zhou Shizhong ,Zhuo Jiashou

Journal Article

Assessment of vaccination strategies against highly pathogenic avian influenza in China

Honglei SUN,Jinhua LIU

Journal Article

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

Journal Article