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Study on the grouting technology adopted in F1 weathered trough for Xiamen Xiang’an Subsea Tunnel

Guo Xiaohong,Wang Mengshu

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 38-41

Abstract: water inflow and great difficulty in construction in Xiamen Xiang'an Subsea Tunnel,full-sectional groutingreinforcement and waterproofing,5 m grouting inside heading, 70 m along longitudinal direction of tunneland superfine cement single-fluid grouting as major grouting material were applied according to poorMeanwhile,the corresponding parameters of grouting were established after drillings for grouting wereThe research results can provide technical reference for similar projects in grouting and waterproofing

Keywords： Ximen Xiang’an Subsea Tunnel     grouting reinforcement     stability     numerical simulation    

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Investigation of the seismic behavior of grouted sandy gravel foundations using shaking table tests

Tiancheng WANG; Yu LIANG; Xiaoyong ZHANG; Zhihuan RUAN; Guoxiong MEI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9,   Pages 1196-1211 doi: 10.1007/s11709-022-0865-6

Abstract: Grouting methods can be used to improve the seismic performance of natural sandy gravel foundations.Few studies have investigated the seismic behavior of sandy gravel foundations before and after groutingIn this study, two shaking table tests were performed to evaluate the effect of grouting reinforcementThis demonstrated that different grouting reinforcement strategies are required for different sandy gravel

Keywords： sandy gravel foundation     grouting-treated reinforcement     shaking table test     seismic behavior    

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Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some importantdiameter varies from 2.5 m to 3 m, and the maximum length is 125 m; the bearing capacity of the post-groutingThe results show that the bearing capacity of the piles are increased in different degrees after grouting, duration of grouting lasting time, are different.In addition, the calculation formula for the post-grouting piles under specified grouting condition was

Keywords： self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

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Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

Frontiers of Structural and Civil Engineering   Pages 827-854 doi: 10.1007/s11709-023-0954-1

Abstract: In this study, a fiber element model of a fabricated concrete pier with grouting sleeve-prestressed tendonsleeve-fabricated pier, and a grouting sleeve-prestressed tendon composite fabricated pier.Under traditional non-near-fault ground motions, the pier top displacements of the grouting sleeve-fabricatedIn addition, the plastic hinge zones of the grouting sleeve-fabricated pier and the composite fabricatedpier shifted to the joint seam and upper edge of the grouting sleeve, respectively.

Keywords： seismic performance     continuous girder bridge     grouting sleeve-prestressed tendon composite connections    

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A new automatic convolutional neural network based on deep reinforcement learning for fault diagnosis

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0673-7

Abstract: First, a new deep reinforcement learning (DRL) is developed, and it constructs an agent aiming at controlling

Keywords： deep reinforcement learning     hyper parameter optimization     convolutional neural network     fault diagnosis    

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ideas and engineering practice of high-pressure water-rich fault “outside block and inside strenghthen grouting

Zhang Minqing,Zhang Mei

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 26-34

Abstract: To overcome F11 fault early, the construction technology of "grouting to make solid, using waterwas changed into "outside block and inside strengthen grouting" .for weak water area and strengthened grouting for strong water area, following the principle of "The grouting holes and grouting quantity of "outside block and inside solid grouting"  are 50 % less than those of whole cross section grouting, and the grouting speed is 80 % higher when

Keywords： high-pressure water-rich fault     unevenness     blocking water and strengthen by grouting     outside blockand inside solid grouting     innovation    

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Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 45-49

Abstract:

In order to choose the suitable grouting material and grouting process, and simulate the actual situation of clearance grouting of rack and nut column in ship lift, groutingComparing three kinds of domestic grouting material and the German PAGEL grouting material in groutingIn prototype grouting test, selection of the grouting equipment type, mixing time, templates seal, methodof grouting parameters control of grouting flow were researched, and some applicable grouting material

Keywords： rack     nut column     grouting     ship lift     Three Gorges Project    

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Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1393-1404 doi: 10.1007/s11709-019-0563-1

Abstract: Pre-grouting is a popular ground treatment strategy utilized to enhance the strength and stability ofFirst, how should the grouting size be determined?Second, when should excavation begin after grouting?tunnel section are evaluated, thereby assisting designers by quantitatively assessing the effects of pre-grouting

Keywords： pre-grouting     stability analysis     factor of safety     discontinuity layout optimization    

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Punching of reinforced concrete slab without shear reinforcement: Standard models and new proposal

Luisa PANI, Flavio STOCHINO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1196-1214 doi: 10.1007/s11709-020-0662-z

Abstract: In this study an experimental database of 113 RC slabs without shear reinforcement under punching loadspunching shear strength assessment was conducted, which highlighted the importance of the flexural reinforcementstandards, a new proposed model for punching shear strength and rotation of RC slabs without shear reinforcementbased on a simplified load-rotation curve and new failure criteria that takes into account the flexural reinforcement

Keywords： punching shear strength     reinforced concrete     slabs     reinforcement ratio    

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Spatial embedded reinforcement of 20-node block element for analysis PC bridges

LONG Peiheng, DU Xianting, CHEN Weizhen

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 274-280 doi: 10.1007/s11709-008-0039-1

Abstract: The formula for the contribution of prestressed reinforcement on embedded reinforcement element is derivedReinforcement element model allows generating a finite element mesh without taking into consideration

Keywords： arithmetic analysis     calculation     prestressed reinforcement     mechanical     arbitrary    

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Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based on Inverse Reinforcement

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Engineering doi: 10.1016/j.eng.2023.07.018

Abstract: , a trajectory expectation feature-matching algorithm is proposed that uses maximum entropy inverse reinforcement

Keywords： Obstacle avoidance trajectory planning     Inverse reinforcement theory     Anthropomorphic     Adaptive driving    

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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesis

Keywords： automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement    

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Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Shaojun ZHU; Makoto OHSAKI; Kazuki HAYASHI; Shaohan ZONG; Xiaonong GUO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1397-1414 doi: 10.1007/s11709-022-0860-y

Abstract: quantitative indices considering the severity of the ultimate collapse scenario are proposed using reinforcementindex-based methods, it is demonstrated that the computational cost is considerably reduced because the reinforcementBesides, it is proved that the Q values produced by the reinforcement learning agent can make

Keywords： progressive collapse     alternate load path     demolition planning     reinforcement learning     graph embedding    

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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: They have precast concrete panels attached to earth reinforcement.The effects of pore pressure, soil cohesion, earth reinforcement type and length, breakage/slippage ofreinforcement and concrete strength, were examined.Results showed that the wall movement is affected by soil pore pressure and reinforcement integrity andGeogrid reinforcement may be used taking account of slippage resistance and wall movement.

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

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Layout optimization of steel reinforcement in concrete structure using a truss-continuum model

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 669-685 doi: 10.1007/s11709-023-0963-0

Abstract: Owing to advancement in advanced manufacturing technology, the reinforcement design of concrete structuresevolutionary structural optimization (BESO), a new approach is developed in this study to optimize the reinforcementTo demonstrate the effectiveness of the proposed procedures, reinforcement layout optimizations of a

Keywords： bi-directional evolutionary structural optimization     steel-reinforced concrete     concrete stress     reinforcement    

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Title Author Date Type Operation

Study on the grouting technology adopted in F1 weathered trough for Xiamen Xiang’an Subsea Tunnel

Guo Xiaohong,Wang Mengshu

Journal Article

Investigation of the seismic behavior of grouted sandy gravel foundations using shaking table tests

Tiancheng WANG; Yu LIANG; Xiaoyong ZHANG; Zhihuan RUAN; Guoxiong MEI

Journal Article

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

Journal Article

A new automatic convolutional neural network based on deep reinforcement learning for fault diagnosis

Journal Article

ideas and engineering practice of high-pressure water-rich fault “outside block and inside strenghthen grouting

Zhang Minqing,Zhang Mei

Journal Article

Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Journal Article

Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Journal Article

Punching of reinforced concrete slab without shear reinforcement: Standard models and new proposal

Luisa PANI, Flavio STOCHINO

Journal Article

Spatial embedded reinforcement of 20-node block element for analysis PC bridges

LONG Peiheng, DU Xianting, CHEN Weizhen

Journal Article

Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based on Inverse Reinforcement

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Journal Article

Automated synthesis of steady-state continuous processes using reinforcement learning

Journal Article

Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Shaojun ZHU; Makoto OHSAKI; Kazuki HAYASHI; Shaohan ZONG; Xiaonong GUO

Journal Article

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

Journal Article

Layout optimization of steel reinforcement in concrete structure using a truss-continuum model

Journal Article