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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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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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Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1595-7

Abstract:

● Mechanical behavior of MBT waste affected by loading rate was investigated.

Keywords： Mechanically and biologically treated waste     Landfill     Triaxial test     Loading rate     Axial strain     Shear    

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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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Characterization of humic substances in bio-treated municipal solid waste landfill leachate

Guangxia QI, Dongbei YUE, Yongfeng NIE

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 711-716 doi: 10.1007/s11783-012-0421-z

Abstract: Humic substances (HSs) dominate the organic matter in bio-treated landfill leachate.In this study, the HSs from landfill leachate treated by membrane bioreactor (MBR-HSs) were analyzed

Keywords： bio-treated landfill leachate     humic substances     elemental analysis     spectroscopic characteristics    

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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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84-month observational study of the changes in CD4 T-lymphocyte cell count of 110 HIV/AIDS patients treated

Jian Wang,Biyan Liang,Xiaoping Zhang,Liran Xu,Xin Deng,Xiuhui Li,Lu Fang,Xinghua Tan,Yuxiang Mao,Guoliang Zhang,Yuguang Wang

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 362-367 doi: 10.1007/s11684-014-0363-x

Abstract: count of 110 cases with human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) treatedInformation of 110 HIV/AIDS patients from 19 provinces and cities treated with TCM from 2004 to 2013

Keywords： AIDS     HIV     CD4     traditional Chinese medicine     linear models    

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Evolution of composite fouling on a vertical stainless steel surface caused by treated sewage

Cheng ZAN, Lin SHI, Xiujuan MA, Wenyan YANG,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 171-180 doi: 10.1007/s11708-009-0068-z

Abstract: Composite biological and inorganic fouling occurs in plate heat exchangers (PHEs) using treated sewage

Keywords： treated sewage     plate heat exchanger     stainless steel     composite fouling     biofouling    

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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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Improved local control without elective nodal radiotherapy in patients with unresectable NSCLC treated

YANG Kunyu, LIU Li, ZHANG Tao, WU Gang, CAO Fengjun, WANG Jianhua

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 381-385 doi: 10.1007/s11684-007-0074-7

Abstract: To investigate the influence of prophylactic elective nodal irradiation on the therapeutic results of definitive radiotherapy for patients with stage IIIA or stage IIIB unresectable non-small-cell lung cancer, 55 patients with clinically inoperable advanced non-small-cell lung cancer were studied. After four cycles of induction chemotherapy, the patients were divided into two groups at random. In one group, the elective nodal irradiation was included in clinical tumor volume (CTV) of definitive radiotherapy (ENI group); and in the other group, elective nodal irradiation was not included in CTV (non-ENI group). For the patients in the ENI group, the mean prescription dose for gross tumor volumes was 58.4 Gy, while for the patients in the non-ENI group, it was 65.8 Gy (<0.05). The responsive rates were 45.8% and 74.0% (<0.05), and the rate of the elective nodal failure (ENF) was 4.2% and 11.1%, respectively. Kaplan-Meier analysis showed that the mean local-progression-free survival time was 11.0 and 15.0 months, and one-year local-failure rates were 51.9% and 24.5% (<0.05). The median overall survival time was 13.0 and 15.0 months, respectively ( = 0.084). The one-year survival rates were 55.7% and 72.5%, and two-year survival rates were 0% and 19.9%. There was no significant difference in the occurrences of radiation-associated complications between the two groups. Our results showed that omitting elective nodal irradiation did not result in a high incidence of elective nodal failure. On the contrary, it decreased local failure by increasing prescription doses to the primary diseases and lymphadenopaphy, and thereby it may further prolong the patients survival.

Keywords： significant difference     irradiation     unresectable non-small-cell     induction chemotherapy     influence    

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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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Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 137-153 doi: 10.1007/s11709-013-0204-z

Abstract: Experimental results show the significant influence of cement content on the mechanical properties of cement-treatedThe purpose of this paper is to model the cementation effect on the mechanical behavior of cement-treatedsimulate isotropic compression and undrained triaxial tests under various confining stresses on cement-treatedmicromechanical approach is well adapted for taking into account the main physical properties of cement-treated

Keywords： microstructure     cementation     clay     micromechanics     anisotropy     debonding    

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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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Title Author Date Type Operation

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

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

Guo Xiaohong,Wang Mengshu

Journal Article

Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

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

Characterization of humic substances in bio-treated municipal solid waste landfill leachate

Guangxia QI, Dongbei YUE, Yongfeng NIE

Journal Article

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

Journal Article

84-month observational study of the changes in CD4 T-lymphocyte cell count of 110 HIV/AIDS patients treated

Jian Wang,Biyan Liang,Xiaoping Zhang,Liran Xu,Xin Deng,Xiuhui Li,Lu Fang,Xinghua Tan,Yuxiang Mao,Guoliang Zhang,Yuguang Wang

Journal Article

Evolution of composite fouling on a vertical stainless steel surface caused by treated sewage

Cheng ZAN, Lin SHI, Xiujuan MA, Wenyan YANG,

Journal Article

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

Zhang Minqing,Zhang Mei

Journal Article

Improved local control without elective nodal radiotherapy in patients with unresectable NSCLC treated

YANG Kunyu, LIU Li, ZHANG Tao, WU Gang, CAO Fengjun, WANG Jianhua

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

Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Journal Article

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

Luisa PANI, Flavio STOCHINO

Journal Article