Compression–shear coupling rheological constitutive model of the deep-sea sediment

Xu, Feng; Rao, Qiuhua; Zhang, Jie; Ma, Wenbo

doi:10.1080/1064119x.2017.1286530

Cited by 22 publications

(5 citation statements)

References 9 publications

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“…The model can provide the theoretical basis for the design and optimization of mining vehicle walking devices. Xu et al [63] proved the compression-shear-coupled constitutive model of mining vehicle travel time and carried out experimental analysis. Zhang et al [64] researched the vertical stress fluctuations and temporal distribution patterns of seabed sediments caused by the movement of DSMV on the ocean floor.…”

Section: Track and Sediment Model Constructionmentioning

confidence: 99%

“…This study offers valuable insights into enhancing anti-skid measures and stability control for locomotive apparatus. Feng et al [63] were the pioneers in deriving a novel equation to compute the steering grip of crawler mining vehicles by taking into account both the resistance encountered during propulsion and the sinking phenomenon. Furthermore, they investigated how turning speed, distance between tracks, and contact length between tracks and deep-sea sediments impact this steering grip.…”

Section: Geometric Passability Of the Walking Devicementioning

confidence: 99%

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A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Zhang,

Zuo,

Wei

et al. 2024

JMSE

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In response to the anticipated scarcity of terrestrial land resources in the coming years, the acquisition of marine mineral resources is imperative. This paper mainly summarizes the development of underwater collection and transportation equipment of polymetallic nodules in deep-sea mining. Firstly, the collection equipment is reviewed. The deep-sea mining vehicle (DSMV), as the key equipment of the collection equipment, mainly includes the collecting device and the walking device. The micro and macro properties of sediments have a great influence on the collection efficiency of mining vehicles. For the collecting device, the optimization of the jet head structure and the solid–liquid two-phase flow transport of the hose are discussed. The structure of the walking device restricts mining efficiency. The optimization of the geometric structure is studied, and the geometric passability and lightweight design of the walking device are discussed. Secondly, the core of transportation equipment is the lifting device composed of a riser and lifting pump. In order to explore the key factors affecting mineral transport, the lifting device is summarized, and the design optimization of the lifting pump and the factors affecting the stability of the riser are discussed. Then, the relationship between each device is discussed, and the overall coupling of the device is summarized. Finally, the existing problems and future research focus are summarized.

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Section: Track and Sediment Model Constructionmentioning

confidence: 99%

Section: Geometric Passability Of the Walking Devicementioning

confidence: 99%

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Zhang,

Zuo,

Wei

et al. 2024

JMSE

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“…For every group, the shear creep curves in the horizontal direction are obtained from a displacement test system comprising a NS-WY02 high-precision displacement sensor, a signal amplifier, and a display (computer). Noticeably, NS-YB data acquisition software is adopted for data storage due to the shortcoming of real-time data display [7]. ( )…”

Section: Direct Shear Creep Experiments Of Simulant Deep-sea Sedimentmentioning

confidence: 99%

“…The tracked miner is one of the most critical pieces of equipment of the hydraulic lifting pipeline mining system, adopted mainly by China because of its low cost and high mining efficiency [4][5][6]. The tracked miner encounters extremely special deepsea environments, such as more obvious rheological performance of sediment than land soil [7] and complex deep-sea topography (e.g., gullies, ditches, and slopes). The special environments inevitably result in the change of grounding pressure distribution and the lack of traction force for the tracked miner, and the tracked miner eventually fails the normal walk.…”

Section: Introductionmentioning

confidence: 99%

“…A tri-axial compression creep experiment was studied for getting the creep curves of the deep-sea simulant sediment under the same confining pressure and different vertical compression, and then the creep curves were employed to identify the parameters by the different rheological models for determining the most proper compression rheological model of deep-sea sediment [10]. Xu et al [7] discovered the compression-shear coupling effect between compression creep displacement and shear creep displacement by the compression-shear coupling creep experiment, and then a compression-shear coupling rheological model was deduced and proved to be reliable. In regard to the traction force of the tracked vehicle, the track-terrain interaction theory is often adopted mostly involving the Bekker's theory (for brittle soil) [11], Janosi-Hanamoto's theory (for plastic soil) [12] and Wong's theory (for both brittle and plastic soil) [13], and a little involvement of rheological constitutive model (for cohesive soil) [14].…”

Section: Introductionmentioning

confidence: 99%

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Semi-Empirical Time-Dependent Parameter of Shear Strength for Traction Force between Deep-Sea Sediment and Tracked Miner

2022

Sensors

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Based on our direct shear creep experiment and the direct shear rheological constitutive model, a semi-empirical time-dependent parameter of the shear strength is obtained by Mohr–Coulomb shear strength theory, and different time-dependent traction force calculations between deep-sea sediment and a tracked miner are conducted by the work-energy principle. The time-dependent traction force calculation under its influencing factors, including the time, track shoe number, and grounding pressure, are analyzed and proved to be valid by the traction force experiment of a single-track shoe. The results show that the time-dependent cohesion force obtained by a semi-empirical way can be easily used to deduce the time-dependent traction force models under the different grounding pressure distributions and applied into deep-sea engineering application conveniently; the verified traction force models by the traction force experiment of a single-track shoe illustrate that traction force under the decrement grounding pressure distribution is the worst among the four kinds of grounding pressure distributions and suggested for evaluating the most unfavorable traction force and calculating the trafficability and stability of the deep-sea tracked miner.

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Stress Path Analysis of Deep-Sea Sediments Under the Compression-Shear Coupling Load of Crawler Collectors

Zhang

Yin

et al. 2023

J. Ocean Univ. China

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Compression–shear coupling rheological constitutive model of the deep-sea sediment

Cited by 22 publications

References 9 publications

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Semi-Empirical Time-Dependent Parameter of Shear Strength for Traction Force between Deep-Sea Sediment and Tracked Miner

Stress Path Analysis of Deep-Sea Sediments Under the Compression-Shear Coupling Load of Crawler Collectors

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