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Research on Development Mechanism of Sulphate-carbonate Rocks’ Compound Karst and Engineering Impacts

Lu Yaoru,Zhang Feng´e

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 4-10

Abstract: text-align: justify;">Sulphate rock and carbonate rock both are usually distributed together, but their karstdeve -lopments are most studied separately.It is mainly to research the compound karst developmentalbetween the two soluble rocks,which are involved in the chemical karstification and the biological karstprocesses.The karst collapsed column is a special karst hazard of the compound karst,and the karst underground

Keywords： sulphate rock     carbonate rock     compound karst     collapsed column     underground water quality    

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Characterization of soil low-molecular-weight organic acids in the Karst rocky desertification region

Xiaoliang LI, Xiaomin CHEN, Xia LIU, Lianchuan ZHOU, Xinqiang YANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 195-203 doi: 10.1007/s11783-012-0391-1

Abstract: LMW) organic acids play important roles in the soil-forming process and the cycling of nutrients in Karstorganic acids (including lactate, acetate, formate, malate, and oxalate) in soil solution over the Karstwere significantly positively correlated with inorganic anions (chlorides, nitrates, and sulfates) in KarstTherefore, the concentrations of soil LMW organic acids might be one of driving force in the Karst rock

Keywords： Karst rocky desertification     low-molecular-weight (LMW) organic acids     distribution characteristics     soil    

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Large-scale model test study on the water pressure resistance of construction joints of karst tunnel

Frontiers of Structural and Civil Engineering   Pages 1249-1263 doi: 10.1007/s11709-023-0974-x

Abstract: investigate the water pressure resistance of lining construction joints in high-pressure and water-rich karst

Keywords： karst tunnel     lining construction joint     water pressure resistance     large-scale model test     numerical    

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Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 492-501 doi: 10.1007/s11708-021-0721-8

Abstract: Catalytic steam reforming is a promising route for tar conversion to high energy syngas in the process of biomass gasification. However, the catalyst deactivation caused by the deposition of residual carbon is still a major challenge. In this paper, a modified Ni-based Ni-Co/Al O -CaO (Ni-Co/AC) catalyst and a conventional Ni/Al O (Ni/A) catalyst were prepared and tested for tar catalytic removal in which toluene was selected as the model component. Experiments were conducted to reveal the influences of the reaction temperature and the ratio between steam to carbon on the toluene conversion and the hydrogen yield. The physicochemical properties of the modified Ni-based catalyst were determined by a series of characterization methods. The results indicated that the Ni-Co alloy was determined over the Ni-Co/AC catalyst. The doping of CaO and the presence of Ni-Co alloy promoted the performance of toluene catalytic dissociation over Ni-Co/AC catalyst compared with that over Ni/A catalyst. After testing in steam for 40 h, the carbon conversion over Ni-Co/AC maintained above 86% and its resistance to carbon deposition was superior to Ni/A catalyst.

Keywords： catalytic steam reforming     tar model compound     Ni-based catalyst     carbon resistance    

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Shear stress distribution prediction in symmetric compound channels using data mining and machine learning

Zohreh SHEIKH KHOZANI, Khabat KHOSRAVI, Mohammadamin TORABI, Amir MOSAVI, Bahram REZAEI, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1097-1109 doi: 10.1007/s11709-020-0634-3

Abstract: a series of experimental tests were conducted to assess the shear stress distribution in prismatic compoundThe shear stress values around the whole wetted perimeter were measured in the compound channel withand Additive Regression implemented on attained data to predict the shear stress distribution in the compound

Keywords： compound channel     machine learning     SKM model     shear stress distribution     data mining models    

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Risk management of Karst tunnel of Yichang-Wanzhou Railway

Zhu Pengfei

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 20-25

Abstract: All of these can provide experiences for other karst tunnel's risk management.

Keywords： Karst tunnel     risk management     measures for risks    

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Treatment techniques for Karst disaster of Maluqing Tunnel on Yichang-Wanzhou Railway

Yang Bing,Xiao Gangzhi

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 69-76

Abstract:

Karst disaster is badly endangering the safety of tunnel constructionintroduced separately; what is more, disclosure progress and the status after disclosing of the +978 KarstFinally, curtain grouting technology for stratum consolidation and pile-cap technology for spanning karstcave after the +978 Karst Cave disclosed are introduced too.for karst cave with large quantity water during the similar tunnel construction in the future.

Keywords： tunnel     Karst water burst     advanced geological forecast     curtain grouting    

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The Karst development characteristics and countermeasure of Yunwushan Tunnel

Xue Bin, Zhang Minqing

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 61-68

Abstract:

The revealed karst, karst features and treatment measures are describedin detail, and different types of karst-specific countermeasures are put up.The by-pass schedule pertaining to large-scale karst cavities during construction is put up, and relativelyAll these can provide reference for the construction of the long karst tunnels.

Keywords： Yunwushan Tunnel     Karst     development characteristics     countermeasure    

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R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 932-945 doi: 10.1007/s11684-022-0963-9

Abstract: Meanwhile, we conducted a compound heterozygous model—Ncc R156Q/G210S mice corresponding to human NCC

Keywords： Gitelman syndrome     mouse model     compound heterozygous     hypokalemia     Slc12a3    

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A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 1-4 doi: 10.1007/s11465-012-0306-7

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Research of water distribution of tunnel lining in Karst region

Tan Zhongsheng,Li Jian,Xue Bin,Wan Xiuying

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 87-92

Abstract: Relying on Yichang-Wanzhou Railway karst tunnels to research on distribution of linning water pressure

Keywords： tunnel in Karst region     whole block     controlled drainage     water pressure     model test    

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Study on construction mechanical behavior of silt filled karst cave tunne

Miao Dehai ,Mo Yangchun,Wang Wei,Chen Tao

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 41-46

Abstract:

When tunnel is constructed in karst cave zone, all kinds of filled caverns

Keywords： tunnelling engineering     silt filled Karst cave     mechanical behavior     numerical simulation    

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Combined prevention and treatment technology on water disaster in complex karst tunnel of Yichang-Wanzhou

Ma Dong

Strategic Study of CAE 2010, Volume 12, Issue 8,   Pages 94-98

Abstract:

Based on Dazhiping Tunnel that is one of the eight complex karst tunnels

Keywords： Yichang-Wanzhou Railway     complex karst tunnel     water disaster     prevention technology    

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Numerical study on the process of water inrush in Karst caves with hydraulic pressure caused by tunnel

Huang Mingli,Wang Fei,Lu Wei,Tan Zhongsheng

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 93-96

Abstract:

Water inrush is often encountered during tunnel excavation in karst regionSo it is of important significance to study the mechanism of water inrush for the prevention of Karstmechanism of water flush and surrounding rock failure caused by gradually increasing hydraulic stress in Karstcaves, and it can provide reliable reference for prevention of Karst disasters.

Keywords： water flush in Karst caves     tunnel excavation     mechanical mechanism     numerical simulation    

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Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0870-x

Abstract: soil remediation technique that is particularly suitable for the remediation of large volatile organic compound-contaminated

Keywords： Soil contamination     Volatile organic compound     Mechanical soil aeration     Engineering practice     China    

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Title Author Date Type Operation

Research on Development Mechanism of Sulphate-carbonate Rocks’ Compound Karst and Engineering Impacts

Lu Yaoru,Zhang Feng´e

Journal Article

Characterization of soil low-molecular-weight organic acids in the Karst rocky desertification region

Xiaoliang LI, Xiaomin CHEN, Xia LIU, Lianchuan ZHOU, Xinqiang YANG

Journal Article

Large-scale model test study on the water pressure resistance of construction joints of karst tunnel

Journal Article

Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

Journal Article

Shear stress distribution prediction in symmetric compound channels using data mining and machine learning

Zohreh SHEIKH KHOZANI, Khabat KHOSRAVI, Mohammadamin TORABI, Amir MOSAVI, Bahram REZAEI, Timon RABCZUK

Journal Article

Risk management of Karst tunnel of Yichang-Wanzhou Railway

Zhu Pengfei

Journal Article

Treatment techniques for Karst disaster of Maluqing Tunnel on Yichang-Wanzhou Railway

Yang Bing,Xiao Gangzhi

Journal Article

The Karst development characteristics and countermeasure of Yunwushan Tunnel

Xue Bin, Zhang Minqing

Journal Article

R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Journal Article

A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Journal Article

Research of water distribution of tunnel lining in Karst region

Tan Zhongsheng,Li Jian,Xue Bin,Wan Xiuying

Journal Article

Study on construction mechanical behavior of silt filled karst cave tunne

Miao Dehai ,Mo Yangchun,Wang Wei,Chen Tao

Journal Article

Combined prevention and treatment technology on water disaster in complex karst tunnel of Yichang-Wanzhou

Ma Dong

Journal Article

Numerical study on the process of water inrush in Karst caves with hydraulic pressure caused by tunnel

Huang Mingli,Wang Fei,Lu Wei,Tan Zhongsheng

Journal Article

Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Journal Article