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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: pressure resistance of lining construction joints in high-pressure and water-rich karst tunnels.A large-scale model test was designed and conducted, innovatively transforming the external water pressureof the lining construction joint into internal water pressure.The results show that using waterstops can significantly improve the water pressure resistance of liningThe water pressure resistance of the lining construction joint is positively correlated with the lining

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

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Study on water pressure characteristics of Xiamen Xiang’an Subsea Tunnel

Cheng Zhengming

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 29-35

Abstract:

The reasonable water pressure upon lining determination is the key toThe analytic method calculation formula of outside pressure upon lining of circular subsea tunnel wasResults of model tests showed that under the condition of fully closed, the pressure on lining couldnot be reduced; the water pressure would significantly reduce if the water of the tunnel was drained,Lining external water pressure formula under limited drainage was established, and it was also verified

Keywords： subsea tunnel     lining     water pressure     model test     limited drainage     reduction    

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Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 94-103 doi: 10.1007/s11705-011-1172-2

Abstract: Coal swelling or shrinkage by adsorption or desorption of water vapor has not been well understood butUnlike gas adsorption in coal which usually forms a single layer of adsorbed molecules, water vapor adsorptionThe model extended an energy balance approach for gas adsorption-induced coal swelling to water vapor

Keywords： multilayer adsorption     vapour pressure     coal shrinkage     relative humidity     permeability    

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Research and Application of Engineering Water-pressure Blasting for Economizing Energy and Environmental

He Guangyi,Duan Changyan,Jing Shan,Wang Taichao

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 43-48

Abstract:

The engineering water-pressure blasting for economizing energy and environmental protection isa new

Keywords： engineering water-pressure blasting     simulation experiment     energy utilization ratio    

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The energesis and depressurization technology of filling solution cavity of high pressure and rich water

Zhang Mei,Zhang Minqing,Zhu Pengfei,Huang Hongjian

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 13-19

Abstract:

Filling solution cavity of high pressure and rich water have the characteristicsfeatures of abundant water, high pressure,large scale and complicated filling medium.Once the grouting blind area is breakdown by high pressure water during the process of construction,It will generate large-scale water and mud outburst which cause a disaster.pressure during the process of construction and to finish farthering solution cavity by related measures

Keywords： filling solution cavity of high pressure and rich water     the energesis and depressurization technology    

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Design new ideas and engineering practice of high-pressure water-rich fault “outside block and inside

Zhang Minqing,Zhang Mei

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

Abstract: It is rich in high-pressure water, with the biggest single whole water inflow of 1 800 m3/h and waterpressure of 2.5 MPa.The common design for high-pressure water-rich fault is thicker reinforced ring and stronger reinforcedquantity and pressures is uneven, then finds out weak water area and strong water area through advancedwater area, following the principle of "blocking cracks to reduce water quantity, strengthening

Keywords： high-pressure water-rich fault     unevenness     blocking water and strengthen by grouting     outside block    

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evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam, cooling water

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 321-335 doi: 10.1007/s11708-021-0741-4

Abstract: traditional single heat source (extraction steam), the extraction steam from the turbine, the cooling waterfrom the plant condenser, and the low-pressure feedwater from the feedwater preheating system were collectively

Keywords： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam     cooling water     low-pressure feedwater    

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Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 155-163 doi: 10.1007/s11783-014-0740-3

Abstract: High-pressure membrane process is one of the cost-effective technologies for the treatment of groundwaterThree membrane systems were set up and two brands of reverse osmosis (RO), four low-pressure RO (LPROcombination with dosing antiscalent, was not sufficient to reduce the fouling potential of the raw waterm treated water, respectively.m finished water, respectively.

Keywords： reverse osmosis (RO)     nanofiltration (NF)     water quality standards     sodium     fluoride     cost estimation    

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Tools repairing and welding techniques with high pressure of slurry shield under deep water-rich sandy

Cheng Mingliang,He Feng,Lv Chuantian

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 46-50

Abstract: experience in Beijing Railway underground project, the changing cutter and welding techniques with high pressureof slurry shield under deep water-rich sandy gravel stratum were summarized.One is to choose an appropriate position and an appropriate working pressure for making a good previousDuring the repair welding, we successfully realized going into the excavation chamber with high pressurefor more than 250 times, and the working pressure rose from 0.9 bar(1 bar=100 kPa) to 2.8 bar with no

Keywords： slurry shield     sandy gravel stratum     water-rich layer     tools repair with high pressure     welding    

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Monitoring and analysis to shock in water aboutunderwater drilling blasting

Ke Songlin,Li Linna,Si Jianfeng,Zhong Dongwang

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 103-106

Abstract: blasting in Gulei sea channel of Xiamen Port as an example, the forming characteristic of shock wave in waterBy field monitoring, the pressure of shock in water for different distances is attained, the major parameter, such as pressure amplitude and positive action time, and the propagation attenuation rule of shockin water are researched in this paper.

Keywords： Underwater drilling blasting     Shock wave in water     Pressure characteristics    

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Application and Prospects of Water Jet Technology in Petroleum Engineering

Shen Zhonghou,Li Gensheng,Wang Ruihe

Strategic Study of CAE 2002, Volume 4, Issue 12,   Pages 60-65

Abstract:

This paper presents the study and applications of water jet technology in petroleum engineering.A mathematic model of pressure and water power attenuation, under the condition of submergence and nonfreedomnovel method and its model are established to gain maximum hydraulic power at bottomhole and optimize waterabove models and theories, three new kinds of bits, i.e. extended nozzle roller bit, self-resonating waterAlso, the paper points the prospects of applications of water jet technology in deep-well drilling, low-permeability

Keywords： water jet technology     oil well drilling     oil & gas production     high and ultra-high pressure jet    

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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:

Tunnel lining water pressure problem has been bone of contention forRelying on Yichang-Wanzhou Railway karst tunnels to research on distribution of linning water pressureModel test scale was 1∶16, and test apparatus could be applied earth pressure and water pressure.Acquiring the distribution of linning water pressure by model test: the lining water pressure can'pressure reduce; the lining still bear a certain degree of water pressure at the condition of drainage

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

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The security monitoring and controlled drainage of Xiamen Subsea Tunnel

Du Chaowei,Wang Mengshu,Tan Zhongsheng

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 86-91

Abstract:

Controlled drainage should be applied to deal with underground waterIn order to study the change laws of subsea tunnel wall rock pressure, water pressure on primary support, water pressure on primary support and internal force of steel arching were carried out on site in thepressure on primary support can be reduced to 1/3 of the full hydrostatic pore pressure.By monitoring and analyzing the water inflow on site, the water inflow controlling criteria are put forward

Keywords： Xiamen Subsea Tunnel     controlled drainage     construction monitoring     water pressure     water inflow    

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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 pressure

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

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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 Karstcharacters of stress distribution、displacement field and acoustic emission(AE) during the process of waterThe results deepen the understanding of the mechanism of water flush and surrounding rock failure caused

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

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Title Author Date Type Operation

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

Journal Article

Study on water pressure characteristics of Xiamen Xiang’an Subsea Tunnel

Cheng Zhengming

Journal Article

Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Journal Article

Research and Application of Engineering Water-pressure Blasting for Economizing Energy and Environmental

He Guangyi,Duan Changyan,Jing Shan,Wang Taichao

Journal Article

The energesis and depressurization technology of filling solution cavity of high pressure and rich water

Zhang Mei,Zhang Minqing,Zhu Pengfei,Huang Hongjian

Journal Article

Design new ideas and engineering practice of high-pressure water-rich fault “outside block and inside

Zhang Minqing,Zhang Mei

Journal Article

evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam, cooling water

Journal Article

Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

Journal Article

Tools repairing and welding techniques with high pressure of slurry shield under deep water-rich sandy

Cheng Mingliang,He Feng,Lv Chuantian

Journal Article

Monitoring and analysis to shock in water aboutunderwater drilling blasting

Ke Songlin,Li Linna,Si Jianfeng,Zhong Dongwang

Journal Article

Application and Prospects of Water Jet Technology in Petroleum Engineering

Shen Zhonghou,Li Gensheng,Wang Ruihe

Journal Article

Research of water distribution of tunnel lining in Karst region

Tan Zhongsheng,Li Jian,Xue Bin,Wan Xiuying

Journal Article

The security monitoring and controlled drainage of Xiamen Subsea Tunnel

Du Chaowei,Wang Mengshu,Tan Zhongsheng

Journal Article

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

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