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The earth dynamical mechanism for the geological environmental evolution of quaternary period in the

Hu Dongsheng,Zhang Huajing,Xu Bing,Wen Jingchun,Tian Xinhong,Zhang Guowei

Strategic Study of CAE 2011, Volume 13, Issue 1,   Pages 81-88

Abstract: gross, combining with the develop process of region geologic evolvement and the disabuse products of earthremote sensing images, the startup blaze factor and mutual coupling mechanism and its drive transfer effectenvironment change in the plateau internal area were researched, This direction now still belong to frontier field

Keywords： geological environment evolvement of Quaternary     respond of geologic structural events     motive deliverchain of the earth field effect     hinterland area of the Qinghai- Xizang (Tibet) Plateau    

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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 ofSoil cohesion has a minor effect, while the movement increased by 13–20 mm for flexible geogrid reinforced

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

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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 platformsBy analyzing the data of a 15-month long field monitoring project, the bearing behavior and effectivenessof GRCS earth platforms are discussed in detail.

Keywords： geosynthetic-reinforced and column-supported (GRCS) earth platforms     soft soil     bearing behavior     settlementand deformation     field testing    

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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 wallThe Karhunen-Loève expansion method is used for the discretization of the random field.

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

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High Resolution Earth's Gravity Field Models DQM99

Shi Pan,xia Zheren,sun Zhongmiao,li Yingchun

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 51-55

Abstract:

The harmonic series formula of the Earth´s disturbing potential is the most extensive applicableexpression for the Earth´s gravity field model.

Keywords： Earth's gravity field model DQM99     Earth's figure     geopotential coefficient model    

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The earth satellites observation analysis of natural environment change of nuclear test field in Lop

Hu Dongsheng,Zhang Huajing,Pang Xilei,Xu Bing,An Zhisheng,Zhang Guowei,Tian Xinhong

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 31-38

Abstract:

Using earth satellite observation means, remote sensing information distilledproduction, we have roundly analyzed and made an integrated evaluation about the Lop Nur nuclear test fieldThis product reveals the rarely-known nuke explosion effect and response events of geology conditionsexcavating and appraising the materials gradually on the natural environment factors changing in the test field

Keywords： earth satellite observation     the nuclear test field     the nuke explosion effect and the respond process    

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The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 47-58

Abstract: The earth penetrating weapons (nuclear and non-nuclear) developing by countries with military power haveOn the summary of the developing earth penetrating weapons, the damage effects of earth penetrating weaponsare reviewed, with emphasis on penetrating effect, crater effect and explosion ground shock effect.nonlinear deep rock mass mechanics, pendulum type wave and ultra-low friction phenomenon, and gather effect

Keywords： earth penetrating weapons     damage effect     deep buried     protective engineering    

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Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 950-964 doi: 10.1007/s11709-019-0529-3

Abstract: Cracks at the crest of slopes frequently occur during earthquakes. Such cracks result from limited tension strength of the soil. A tension cut-off in Mohr-Coulomb shear strength can represent this limited strength. Presented is an extension of variational analysis of slope stability with a tension crack considering seismicity. Both translational and rotational failure mechanisms are included in a pseudo-static analysis of slope stability. Developed is a closed-form to assess the seismic stability of slopes with zero tensile strength. The results indicate that the presence of the tension crack has significant effects on the seismic stability of slopes, i.e. leading to small value of the yield acceleration. Considering soil tension strength in seismic slope analysis may lead to overestimation on the stability, as much as 50% for vertical slopes. Imposing tension crack results in transit of the critical failure mode to a straight line from a log-spiral, except for flat slopes with small soil cohesion. Under seismic conditions, large cohesion may increase the depth of crack, moving it closer to the slope.

Keywords： slope stability     tension     crack     limit equilibrium     seismic effect    

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A review on different theoretical models of electrocaloric effect for refrigeration

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 478-503 doi: 10.1007/s11708-023-0884-6

Abstract: The performance parameters for characterizing the electrocaloric effect are isothermal entropy changeThis paper reviews the electrocaloric effect of ferroelectric materials based on different theoretical(the first-principle-based effective Hamiltonian, the Landau-Devonshire thermodynamic theory, phase-fieldsimulation, and finite element analysis) to explain the basic theory of calculating the electrocaloric effectand the generation mechanism of the electrocaloric effect.

Keywords： electrocaloric effect     effective Hamiltonian     phase-field modeling     different theoretical models    

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Application of Satellite Gravity Gradiometry Data to the Refinement of the Earth’s Gravity Field

Ning Jinsheng,Luo Zhicai,Chen Yongqi

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 23-28

Abstract: physical geodesy is to determine the geoid with centimeter level and to develop the ultra high global earth’s gravity field model，and for this purpose satellite gravity gradiometry is one of the most promisingprogress of satellite gravity gradiometry, and then discusses some theories and methods for refining the earth´s gravity field using satellite gravity gradiometry data.

Keywords： satellite gravity gradiometry     satellite gravity gradiometry boundary value problem     earth's gravity field    

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Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0966-x

Abstract: influence of LRAF methods on the stress and displacement fields of the surrounding rock, and the anti-fault effectFurthermore, anchor cable and grouting modifications changed the stress field of the rock mass in theThe tensile stress field of the rock mass in the modified anchor cable area was converted into a compressivestress field.The stress field in the modified grouting area changed from shear stress in the fault slip direction

Keywords： anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossing    

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Research on the data processing methods of airborne vector gravimetry using SINS/GNSS

Ning Jinsheng

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 4-13

Abstract: vector gravimetry is an advanced and efficient technology to determine high frequency information of earth’s gravity field in the future，and is a complement to ground gravimetry，marine gravimetry and satelliteis introduced in the paper，and then the data preprocessing，data reduction，band-limited topographical effect

Keywords： airborne vector gravimetry     SINS/GNSS data fusion     earth gravity field     geoid    

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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 earthwith hr/D ≤ 0.5, the variation of hr/D has little effect

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

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Analysis of the Effect of Water and Fertilizer on Crop Production in Farmland of Arid Zone in Northern

Gao Yajun,Li Shengxiu

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 74-79

Abstract:

On the basis of field experiments conducted by authors for a few years, the research results publishedIt was showed that the water effect and fertilizer effect on crop production were related to experimentThe result obtained from field experiments was opposite to that from simulated experiments because theThe result of rainproof-shed experiments or pot experiments didn’t coincide with the field situationThe effect of irrigation water on crop production depended on the soil water content before sowing, precipitation

Keywords： effect of water and N fertilizer     arid area in Northern China     field experiment     simulated experiment    

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Title Author Date Type Operation

The earth dynamical mechanism for the geological environmental evolution of quaternary period in the

Hu Dongsheng,Zhang Huajing,Xu Bing,Wen Jingchun,Tian Xinhong,Zhang Guowei

Journal Article

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

Journal Article

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

Qiangong CHENG,Jiujiang WU,Dongxue ZHANG,Fengping MA

Journal Article

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

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Journal Article

High Resolution Earth's Gravity Field Models DQM99

Shi Pan,xia Zheren,sun Zhongmiao,li Yingchun

Journal Article

The earth satellites observation analysis of natural environment change of nuclear test field in Lop

Hu Dongsheng,Zhang Huajing,Pang Xilei,Xu Bing,An Zhisheng,Zhang Guowei,Tian Xinhong

Journal Article

The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Journal Article

Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Journal Article

A review on different theoretical models of electrocaloric effect for refrigeration

Journal Article

Application of Satellite Gravity Gradiometry Data to the Refinement of the Earth’s Gravity Field

Ning Jinsheng,Luo Zhicai,Chen Yongqi

Journal Article

Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

Journal Article

Research on the data processing methods of airborne vector gravimetry using SINS/GNSS

Ning Jinsheng

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

Analysis of the Effect of Water and Fertilizer on Crop Production in Farmland of Arid Zone in Northern

Gao Yajun,Li Shengxiu

Journal Article