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The Engineering Characteristics and Design of the Crushed Stones and Earth as Impervious Material for

Wang Shougen

Strategic Study of CAE 2004, Volume 6, Issue 7, Pages 88-93

Abstract: >The dam of Qiaoqi Hydropower Project is 123m high, in which it is the first time for the spreading gradationcrushed stone-earth to be adopted as the impervious material for so high an earth — rock dam infeasibility fo this kind of material in whole material storage, based on which, the control standards of designSecond, the representative earth sample is selected to verify if the control standard is reasonable byarticle states the methods, process and results of the study on the impervious materials and proposes the design

Keywords： Qiaoqi Hydropower Project spreading gradation crushed stones and earth impervious material engineeringcharacteristics rolling experiment design for earth gradation

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Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0740-0

Abstract: Earth rover is a class of emerging wheeled-leg robots for nature exploration.At present, few methods for these robots’ leg design utilize a side-mounted spatial parallel mechanismThus, this paper presents a complete design process of a novel 5-degree-of-freedom (5-DOF) hybrid legmechanism for our quadruped earth rover BJTUBOT.

Keywords： design synthesis parallel mechanism hybrid leg mechanism screw theory quadruped robot

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Science and Technology Innovation of the Deep Water High Earth-rock Cofferdam in the Three Gorges Project

Dai Huichao

Strategic Study of CAE 2003, Volume 5, Issue 7, Pages 11-16

Abstract:

The deep water high earth-rock cofferdam in the 2nd phase construction of TGP is a hard and challengethe whole course of the systematical research through the aspects of the experimental research, the design

Keywords： TGP deep water high earth-rock cofferdam design constraction

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Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1209-1221 doi: 10.1007/s11709-021-0764-2

Abstract: Mechanically stabilized earth (MSE) retaining walls are popular for highway bridge structures.They have precast concrete panels attached to earth reinforcement.The effects of pore pressure, soil cohesion, earth reinforcement type and length, breakage/slippage of

Keywords： mechanically stabilized earth walls precast concrete panels backfill soil finite element modeling earth reinforcement

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Computational Design of Rare-Earth Reduced Permanent Magnets Article

Alexander Kovacs, Johann Fischbacher, Markus Gusenbauer, Harald Oezelt, Heike C. Herper, Olga Yu. Vekilova, Pablo Nieves, Sergiu Arapan, Thomas Schrefl

Engineering 2020, Volume 6, Issue 2, Pages 148-153 doi: 10.1016/j.eng.2019.11.006

Abstract:

Multiscale simulation is a key research tool in the quest for new permanent magnets. Starting with first principles methods, a sequence of simulation methods can be applied to calculate the maximum possible coercive field and expected energy density product of a magnet made from a novel magnetic material composition. Iron (Fe)-rich magnetic phases suitable for permanent magnets can be found by means of adaptive genetic algorithms. The intrinsic properties computed by ab initio simulations are used as input for micromagnetic simulations of the hysteresis properties of permanent magnets with a realistic structure. Using machine learning techniques, the magnet’s structure can be optimized so that the upper limits for coercivity and energy density product for a given phase can be estimated. Structure property relations of synthetic permanent magnets were computed for several candidate hard magnetic phases. The following pairs (coercive field (T), energy density product (kJ·m⁻³)) were obtained for iron-tin-antimony (Fe₃Sn_0.75Sb_0.25): (0.49, 290), L1₀-ordered iron-nickel (L1₀ FeNi): (1, 400), cobalt-iron-tantalum (CoFe₆Ta): (0.87, 425), and manganese-aluminum (MnAl): (0.53, 80).

Keywords： Rare-earth Permanent magnets Micromagnetics

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Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 24-40 doi: 10.1007/s11709-010-0082-6

Abstract: A numerical study is conducted to investigate the dynamic behavior of earth dams.For the latter, the Long Valley (LV) earth dam subjected to the 1980 Mammoth Lake earthquake as a realsoil behavior, strength of the shell materials and dam reservoir condition on the dynamic response of earth

Keywords： earth dam numerical nonlinear response dynamic analysis earthquake dam height

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Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth

Keywords： additional position change deviation correction trajectory earth pressure balance shield mechanical

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Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2, Pages 518-531 doi: 10.1007/s11709-020-0611-x

Abstract: This article presents the soil spatial variability effect on the performance of a reinforced earth wall

Keywords： reinforced earth wall geosynthetic random field spatial variability Monte Carlo simulation

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Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1480-1493 doi: 10.1007/s11709-021-0776-y

Abstract: In waterfront geotechnical engineering, seismic and drainage conditions must be considered in the designThis paper proposes a general analytical method to evaluate the seismic active earth pressure on a retainingthe following steps: i) determination of the total head, ii) upper bound solution of seismic active earththrust, and iii) deduction for the earth pressure distribution.The method can be applied to the seismic design of waterfront retaining walls.

Keywords： seismic active earth pressure partial seepage flow pore pressure anisotropy upper bound theorem

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Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1584-1594 doi: 10.1007/s11705-022-2189-4

Abstract: The separation of rare earth elements is particularly difficult due to their similar physicochemicalHerein, a novel method based on the large ionic magnetic moment differences of rare earth elements wasquasi-liquid system strategy provides a possibility of the novel, green, and efficient method for rare earth

Keywords： rare earth element different magnetic moment magnetic separation ionic liquid

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Digital Earth Model of Multiple Scales and Its Application in Virtulizing Earth

Li Boheng

Strategic Study of CAE 2000, Volume 2, Issue 4, Pages 12-15

Abstract:

The digital earth model is composed of three parts： digital frame model, digital elevation model,and digital earth-unit model.The question of building virtual earth in science mainly includes two sections： building the digitalearth model and applying and developing modeling information effectively.The five characteristics of virtual earth and the key technologies for building digital earth model are

Keywords： digial earth virtual earth information

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Migration of ammonium nitrogen in ion-absorbed rare earth soils during and post mining: a column study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1702-4

Abstract:

● Column experiments with an inclined slope were applied to simulate NH₄–N transport.

Keywords： Ion-absorbed rare earth Ammonium nitrogen transport HYDRUS-2D Numerical simulation

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Experimental study on the stratum applicability and mechanisms of bubble–slurry for earth pressure balance

Frontiers of Structural and Civil Engineering Pages 1387-1399 doi: 10.1007/s11709-023-0005-y

Abstract: Soil conditioning is essential for addressing the stratum applicability problem of earth pressure balance

Keywords： EPB shield bubble–slurry soil conditioning stability permeability

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The construction design and practice of Three Gorges Project

Wen Yonghong,Xie Xiangrong,Fan Wuyi

Strategic Study of CAE 2011, Volume 13, Issue 7, Pages 111-116

Abstract: difficulties such as navigation in construction period,Changjiang river closures, high intensity concrete and earthproject.The practice and innovation achievements in river diversion during construction as well as earth

Keywords： Three Gorges Project construction diversion earth rock concrete

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Field testing of geosynthetic-reinforced and column-supported earth platforms constructed on soft soil

Qiangong CHENG,Jiujiang WU,Dongxue ZHANG,Fengping MA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2, Pages 124-139 doi: 10.1007/s11709-014-0255-9

Abstract: This paper is focused on the behavior of geosynthetic-reinforced and column-supported (GRCS) earth platformsthe data of a 15-month long field monitoring project, the bearing behavior and effectiveness of GRCS earth

Keywords： geosynthetic-reinforced and column-supported (GRCS) earth platforms soft soil bearing behavior settlement

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Title Author Date Type Operation

The Engineering Characteristics and Design of the Crushed Stones and Earth as Impervious Material for

Wang Shougen

Journal Article

Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth

Journal Article

Science and Technology Innovation of the Deep Water High Earth-rock Cofferdam in the Three Gorges Project

Dai Huichao

Journal Article

Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Journal Article

Computational Design of Rare-Earth Reduced Permanent Magnets

Alexander Kovacs, Johann Fischbacher, Markus Gusenbauer, Harald Oezelt, Heike C. Herper, Olga Yu. Vekilova, Pablo Nieves, Sergiu Arapan, Thomas Schrefl

Journal Article

Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Journal Article

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Journal Article

Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy