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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: by breccia, broken rocks and fault gouge composition.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.To overcome F11 fault early, the construction technology of "grouting to make solid, using waterThe common design for high-pressure water-rich fault is thicker reinforced ring and stronger reinforced

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

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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 highpressure of 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 previousThe other is the replacement and grouting of high-concentration slurry, which avoided the gas escapeDuring the repair welding, we successfully realized going into the excavation chamber with high pressure

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

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Assessment and validation of liquid breakup models for high-pressure dense diesel sprays

Yi REN,Xianguo LI

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 164-175 doi: 10.1007/s11708-016-0407-9

Abstract: In this paper, different models for liquid breakup processes in high-pressure dense diesel sprays andRayleigh-Taylor (RT) breakup model gives the most reasonable predicted results in both engine simulation and high-pressureTAB) based models and the RT model do not provide reasonable predictions for the characteristics of high-pressure

Keywords： breakup model     diesel engine     high-pressure injection     simulations    

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Continuous deacylation of amides in a high-temperature and high-pressure microreactor

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1818-1825 doi: 10.1007/s11705-022-2182-y

Abstract: To intensify this reaction, a high-temperature and high-pressure continuous microreaction technologyUsing the deacylation of acetanilide as a model reaction, the effects of the temperature, pressure, reactiontime, molar ratio of reactants, and water composition on acetanilide conversion were carefully studiedBased on the rapid heating and cooling capabilities, the kinetics of acetanilide deacylation at high

Keywords： amide deacylation     microreactor     flow chemistry     reaction intensification    

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Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 123-133 doi: 10.1007/s11708-009-0033-x

Abstract: infrared is widely used as a diagnostic tool for combustion devices, but this approach is difficult at highHigh soot concentrations render flames opaque to visible light, but they remain transparent to far-infraredfirst far-infrared absorption spectra, to the best of our knowledge, of sooty, non-premixed, ethylene high-pressureA specially designed high-pressure burner which is optically accessible to THz radiation has been built

Keywords： terahertz time-domain spectroscopy     high-pressure flames     H2O absorption lines    

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A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 219-223 doi: 10.1007/s11465-009-0024-y

Abstract: Based on structures and characteristics of traditional hydraulic pumps, this paper proposes a novel high-temperatureand high-pressure hydraulic pump (HHHP) that can work under 150°C and 28 MPa to overcome problems oftraditional high-temperature plunger pumps.Therefore, reduced fluctuations and stable pressure output is obtained.

Keywords： mononeuron PID control     hydraulic pump     pressure fluctuation    

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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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Grouting construction technology of high pressure and rich water fault F11 in Qiyueshan Tunnel

Zhuo Yue,Sun Guoqing

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 82-86

Abstract: Qiyueshan Tunnel on Yichang-Wanzhou Railway crosses underground rivers, karst caves and fractured faults in highpressure and water gushing strata.Fractured fault F11, which has high water pressure, large volume of water gushing and complicated geologicalTaking the technologies of grouting, water control and rock collapse prevention adopted for fault F11control and rock collapse prevention in high pressure and rich water fault F11.

Keywords： Qiyueshan Tunnel     fractured fault     technical challenges     new construction scheme     new construction technology    

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Study on ground settlement of large diameter slurry shield construction in water-rich sandy gravel stratum

Zhao Baohua,Hu Xibo,Zhang Bing,Li Wenjun

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 94-97

Abstract:

Beijing underground diameter project is located in the water-rich sandy

Keywords： water-rich sandy gravel     large diameter     slurry shield     settlement law    

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Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 438-442 doi: 10.1007/s11708-008-0085-3

Abstract: For a deeper understanding of the flow characteristics in the high-pressure centrifugal blower of a fanwith the presence of splitter blades, the air flow rate of the fan increased about 5% and the total pressureIt was also found that the length of the splitter blades affected the air flow and pressure drop.

Keywords： splitter     numerical simulation     presence     unstructured     operational    

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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.Its engineering construction risk is extremely high.Once the grouting blind area is breakdown by high pressure water during the process of construction,pressure and rich water on Yichang-Wanzhou Railway.It is safe, economical, credible and successful by

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

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Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 105-112 doi: 10.1007/s11708-007-0012-z

Abstract: The spray characteristics of methanol and ethanol with high-pressure swirl injector were explored experimentallyback-pressure.conditions while the vortexes formed in the middle part under high back-pressure ambient conditions., but displayed a slightly larger value under high back-pressure due to fuel evaporation.Numerical simulation could successfully demonstrate the spray characteristics of high-pressure swirl

Keywords： low back-pressure     diameter     initial spray     hollow     middle    

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Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0745-8

Abstract: However, the in-situ 3D printing using raw lunar regolith consumes extremely high energyThe high-performance nylon and lunar regolith are uniformly pre-mixed in powder form with different weightThe high-pressure extrusion system is helpful to enhance the interface affinity of polymer binders withHigh-pressure melt extrusion for lunar regolith composite can increase the effective loading fraction

Keywords： in-situ resource utilization     melt extrusion molding     lunar regolith-based composites     mechanical properties     additive manufacturing    

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and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled with high-pressure

Frontiers of Structural and Civil Engineering   Pages 1370-1386 doi: 10.1007/s11709-023-0947-0

Abstract: Therefore, high-pressure waterjet technology should be applied to assist in rock breaking for efficientvia laboratory experiments of cutting hard rock using high-pressure waterjets.The results show that high-pressure waterjets are highly efficient for rock breaking and are suitableTherefore, temperature control and cooling measures for high-pressure waterjets during their long-termThis study provides a useful reference for the design and construction of high-pressure water-jet-assisted

Keywords： tunnel boring machine     hard-rock cutting     free face     disc cutter     rock-cutting efficiency    

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Development of a simplified n-heptane/methane model for high-pressure direct-injection natural

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 405-420 doi: 10.1007/s11708-021-0718-3

Abstract: High-pressure direct-injection (HPDI) of natu-ral gas is one of the most promising solutions for futureaddition, these two reduced models were both able to reproduce the experimentally measured in-cylinder pressureIn short, the reduced chemical kinetic models developed provide a high-efficient and dependable method

Keywords： high-pressure direct-injection     natural gas     chemical kinetics     combustion modelling     marine engine    

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Title Author Date Type Operation

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

Zhang Minqing,Zhang Mei

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

Assessment and validation of liquid breakup models for high-pressure dense diesel sprays

Yi REN,Xianguo LI

Journal Article

Continuous deacylation of amides in a high-temperature and high-pressure microreactor

Journal Article

Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Journal Article

A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

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

Grouting construction technology of high pressure and rich water fault F11 in Qiyueshan Tunnel

Zhuo Yue,Sun Guoqing

Journal Article

Study on ground settlement of large diameter slurry shield construction in water-rich sandy gravel stratum

Zhao Baohua,Hu Xibo,Zhang Bing,Li Wenjun

Journal Article

Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

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

Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Journal Article

Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Journal Article

and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled with high-pressure

Journal Article

Development of a simplified n-heptane/methane model for high-pressure direct-injection natural

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Journal Article