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Design and construction technology of underwater tunnel

Wang Mengshu

Strategic Study of CAE 2009, Volume 11, Issue 7,   Pages 4-10

Abstract: text-align: justify;">It is briefly introduced that when passing over or crossing rivers, lakes and seas, underwatertunnel construction method is preferred to be adopted for its summed advantages.of design and construction, key construction technology and frequently-used construction method of underwatertunnel are also discussed in this article.

Keywords： underwater tunnel     design     construction    

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Typical Underwater Tunnels in the Mainland of China and Related Tunneling Technologies

Kairong Hong

Engineering 2017, Volume 3, Issue 6,   Pages 871-879 doi: 10.1016/j.eng.2017.12.007

Abstract:

In the past decades, many underwater tunnels have been constructed in the mainland of China, and greatThis paper presents the history and state of the art of underwater tunnels in the mainland of China inTypical underwater tunnels of these types in the mainland of China are described, along with innovativemade regarding the three potential great strait-crossing tunnels—the Qiongzhou Strait-Crossing Tunnel, Bohai Strait-Crossing Tunnel, and Taiwan Strait-Crossing Tunnel—and issues related to these great

Keywords： Underwater tunnel     Strait-crossing tunnel     Shield-bored tunnel     Immersed tunnel     Drill and blast    

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Key technologic problems on underwater shield tunnel

Sun Mou,Tan Zhongsheng

Strategic Study of CAE 2009, Volume 11, Issue 7,   Pages 18-23

Abstract:

Combined with some underwater shield tunnels such as Wuhan Changjiangtunnel, the determination of reasonable cover thickness, the shield type and key parameter selectionThe key technology of stabilizing working face, preventing muddy water eruption, preventing tunnel floating, controlling shield direction, excavating long distance, abutting joint underwater, shield launching

Keywords： underwater tunnel     shield     cover thickness     type selection     key construction technology    

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Discussion on safety risk assessment of shield construction in underwater tunnel

Lu hao,Shi Yehui and Rong Xiaoli

Strategic Study of CAE 2013, Volume 15, Issue 10,   Pages 91-96

Abstract: tunnel construction.The underwater tunnel with large diameter has the characteristics of high risk, difficult to control,Risk assessment is more and more applied in underwater tunnel construction safe management.The characteristics of using slurry shield with large diameter in underwater tunnel were introduced inThis method has been used in an underwater tunnel in Nanjing subway engineering, the application results

Keywords： underwater tunnel     safety risk     dynamic assessment    

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Analytical solutions for water inflow into an underwater tunnel and its application

Huang Fuming,Tan Zhongsheng,Wang Mengshu,Wang Xiuying

Strategic Study of CAE 2009, Volume 11, Issue 7,   Pages 66-70

Abstract: the conformal mapping of the complex variable methods, analytical solutions for water inflow into an underwatertunnel are derived for a constant hydraulic head, constant water pressure and constant hydraulic headas well as grouting ring boundary condition at the tunnel perimeter.

Keywords： underwater tunnel     water inflow     analytical solutions     conformal mapping    

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Prototype test study on mechanical characteristics of segmental lining structure of underwater railwayshield tunnel

He Chuan,Feng Kun,Yan Qixiang,Qi Chun

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 65-72

Abstract:

In view of the first underwater railway shield tunnel, Guangzhou ZhujiangRiver Shiziyang shield tunnel, the prototype test is carried out against its segmental lining structureby using “Multi function Shield Tunnel Structure Test System”.

Keywords： underwater railway shield tunnel     segmental lining structure     prototype test     tenon joint     failure characteristics    

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Service Security of Underwater Tunnel Lining Structures and Corresponding Guarantee Countermeasures

He Chuan,Liu Sijin,Zhang Yuchun and Feng Kun

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 44-51 doi: 10.15302/J-SSCAE-2017.06.007

Abstract: A survey of underwater tunneling such as the Huangpu River’s cross-river tunnel and the undergroundtraffic tunnel in Shanghai was carried out, and the status quo of China’s underwater tunnel liningBased on these analyses, countermeasures guaranteeing the long-life security of underwater tunnel structuresThis research can serve as a reference for enhancing the structural security of underwater tunnels andother major tunnel structures.

Keywords： underwater tunnels     service security     security guarantee countermeasures     long life     structural defects    

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Turbidity-adaptive underwater image enhancement method using image fusion

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-021-0669-8

Abstract: Clear, correct imaging is a prerequisite for underwater operations.Most of the existing underwater imaging methods focus on relatively clear underwater environment, itis uncertain that if those methods can work well in turbid and dynamic underwater environments.In this paper, we propose a turbidity-adaptive underwater image enhancement method.The proposed method is verified by an underwater image dataset captured in real underwater environment

Keywords： turbidity     underwater image enhancement     image fusion     underwater robots     visibility    

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Centrifuge experiment and numerical analysis of an air-backed plate subjected to underwater shock loading

Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1350-1362 doi: 10.1007/s11709-019-0559-x

Abstract: experiments and numerical studies are conducted to investigate the effect of shock loads due to an underwaterNumerical simulations with three different models of pressure time history generated by underwater explosionThe second model to predict the time history of shock wave pressure from an underwater explosion was

Keywords： underwater explosion     centrifuge experiment     shock load     dynamic response     accumulated shock impulse    

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Effects of thermocline on performance of underwater glider’s power system propelled by ocean thermal

Hai YANG, Jie MA,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 472-479 doi: 10.1007/s11708-009-0052-7

Abstract: Based on the enthalpy method, a mathematical model of the underwater glider’s power system wasthe time efficiency of operation was introduced, so that the effects of different thermoclines on the underwater

Keywords： mathematical     underwater glider     system working     certain     corresponding threshold    

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Detecting large-scale underwater cracks based on remote operated vehicle and graph convolutional neural

Wenxuan CAO; Junjie LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1378-1396 doi: 10.1007/s11709-022-0855-8

Abstract: It is of great significance to quickly detect underwater cracks as they can seriously threaten the safetyof underwater structures.In this paper, a large-scale underwater crack examination method is proposed based on image stitchingIn addition, a purpose of this paper is to design a new convolution method to segment underwater imagesThe result shows that the improved APAP algorithm and GCN can adapt to complex underwater environments

Keywords： underwater cracks     remote operated vehicle     image stitching     image segmentation     graph convolutional    

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Aslotted floor acquisitionmultiple access based MACprotocol for underwater acoustic networks withRTS

Liang-fang QIAN,Sen-lin ZHANG,Mei-qin LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3,   Pages 217-226 doi: 10.1631/FITEE.1400187

Abstract: bandwidth, and high bit error rate pose great challenges in media access control (MAC) protocol design for underwaterA MAC protocol called slotted floor acquisition multiple access (slotted-FAMA) suitable for underwaterTo overcome this drawback, this paper proposes a slotted-FAMA based MAC protocol for underwater acoustic

Keywords： Underwater acoustic networks     Medium access control (MAC)     Request-to-send (RTS) competition     Throughput    

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Development of Marine Equipment for Underwater Stereoscopic Observation

Ma Rui, Zhao Xiutao, Liu Cungen

Strategic Study of CAE 2020, Volume 22, Issue 6,   Pages 19-25 doi: 10.15302/J-SSCAE-2020.06.003

Abstract:

Establishing an underwater stereoscopic observation network to obtainThis study first analyzes the need and necessity of developing the underwater stereoscopic observationdevelopment, and presents the key breakthrough points of marine sensors which serve as the key link for underwatertransformation of research results of key marine sensors, coordinate the management of the marine equipment for underwater

Keywords： ocean observation     sea floor observatory network     underwater vehicle     underwater sensor    

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Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 46-55 doi: 10.1007/s11705-022-2170-2

Abstract: increasing amount of oily wastewater produced each day, it is important to develop superhydrophilic/underwaterIn this paper, a superhydrophilic/underwater superoleophobic N-isopropylacrylamide-coated stainless

Keywords： oil/water separation     N-isopropylacrylamide     stainless steel mesh     ultrahigh flux    

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Underwater Attack–Defense Confrontation System and Its Future Development

Xie Wei, Yang Meng, Gong Junbin

Strategic Study of CAE 2019, Volume 21, Issue 6,   Pages 71-79 doi: 10.15302/J-SSCAE-2019.06.014

Abstract:

As an important development direction of naval warfare, the underwater attack–defense confrontationsystem integrates underwater warning, scout, detection, attack, defense and a series of other operationsCurrently, although underwater offensive and defensive weapons have developed rapidly, research on theThis paper first summarizes the status quo of underwater confrontation system construction in some militarypowers, and analyzes the functional composition and typical combat styles of the future underwater attack

Keywords： underwater attack and defense     confrontation system     coordinated combat     unmanned system    

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Title Author Date Type Operation

Design and construction technology of underwater tunnel

Wang Mengshu

Journal Article

Typical Underwater Tunnels in the Mainland of China and Related Tunneling Technologies

Kairong Hong

Journal Article

Key technologic problems on underwater shield tunnel

Sun Mou,Tan Zhongsheng

Journal Article

Discussion on safety risk assessment of shield construction in underwater tunnel

Lu hao,Shi Yehui and Rong Xiaoli

Journal Article

Analytical solutions for water inflow into an underwater tunnel and its application

Huang Fuming,Tan Zhongsheng,Wang Mengshu,Wang Xiuying

Journal Article

Prototype test study on mechanical characteristics of segmental lining structure of underwater railwayshield tunnel

He Chuan,Feng Kun,Yan Qixiang,Qi Chun

Journal Article

Service Security of Underwater Tunnel Lining Structures and Corresponding Guarantee Countermeasures

He Chuan,Liu Sijin,Zhang Yuchun and Feng Kun

Journal Article

Turbidity-adaptive underwater image enhancement method using image fusion

Journal Article

Centrifuge experiment and numerical analysis of an air-backed plate subjected to underwater shock loading

Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING

Journal Article

Effects of thermocline on performance of underwater glider’s power system propelled by ocean thermal

Hai YANG, Jie MA,

Journal Article

Detecting large-scale underwater cracks based on remote operated vehicle and graph convolutional neural

Wenxuan CAO; Junjie LI

Journal Article

Aslotted floor acquisitionmultiple access based MACprotocol for underwater acoustic networks withRTS

Liang-fang QIAN,Sen-lin ZHANG,Mei-qin LIU

Journal Article

Development of Marine Equipment for Underwater Stereoscopic Observation

Ma Rui, Zhao Xiutao, Liu Cungen

Journal Article

Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Journal Article

Underwater Attack–Defense Confrontation System and Its Future Development

Xie Wei, Yang Meng, Gong Junbin

Journal Article