Laboratory data on long-term sealing behaviors of two water-swelling materials for shield tunnel gasket

Tan, Ji-Shuang; Shen, Shui‐Long; Zhou, Annan; Wang, Z.N.; Lyu, Hai‐Min

doi:10.1016/j.dib.2020.105609

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The water swelling polyurethane (WSP) and water swelling rubber (WSR) are two polymer materials that provide water resistance by swelling when they are soaked in water [1] , [2] , [3] – 4] under leaking situation [5] , [6] , [7] – 8] . The WSP material was prepared first by adding TDI, and prepolymer.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

et al. 2020

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This article provides comprehensive experimental data of two polymers for shield tunnel sealing gasket: i) water swelling polyurethane (WSP) and ii) a mixture (WSRP) of WSP and water swelling rubber (WSR). Water-swelling tests are conducted to investigate the microstructural changes and properties of both WSP and WSRP during water swelling. These data can be useful for the quantitative evaluation of water swelling performance of WSP and WSRP. The data presented herein was used for the article, titled “Experimental investigation of water swelling characteristics of polymer materials for tunnel sealing gasket” [1] .

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

et al. 2020

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“…This design uses absorbent rubber as the structural material of plugging umbrellas. Because the expansion deformation generated after the rubber absorbs water can fill irregular gaps and produce huge contact pressure, the plugging umbrella made of this material has good plugging characteristics [1][2][3]. The preparation process of absorbent and expansive rubber material is mature and its waterproof performance is reliable, and it has been widely used in DAMS, subway pipelines and large-scale leak prevention projects [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Research on anti-parachute naval leak plugging umbrella based on water-absorbent swelling rubber material

Wei

Wei²,

Jiang³

et al. 2022

International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022)

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Due to the problems of complex regulation, large mass, and poor adaptability, the traditional ship leak-plugging umbrella is often difficult to be effectively applied in the process of warship leak-plugging. In this paper, starting from the technical scheme and performance characteristics of naval leak plugging umbrella, a design of naval anti-umbrella plugging umbrella based on water-absorbing and expanding rubber material is proposed. Based on the good ductility and elasticity of the swollen rubber material after absorbing water, it achieves the anti-parachute coverage of the breach under the action of water pressure. Meanwhile, an axisymmetric non-linear finite element analysis model of the rubber plugging umbrella is established using ABAQUS to analyse the stress-strain state of the umbrella at different water depths. The results show that the new leak plugging umbrella has a reasonable design, high pressure strength and good sealing performance, which can significantly improve the ship's leak plugging capacity and has broad application value.

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Structure optimization of gasket based on orthogonal experiment and NSGA-II

Dong¹,

Liu²,

Liu³

et al. 2021

Science Progress

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With the aim of enhancing both reliability and fatigue life of gasket, this study combines finite element analysis, orthogonal experimental design, dynamically-guided multi-objective optimization, and the non-dominated sorting genetic algorithm with elitist strategy to optimize the geometric parameters of the cylinder gasket. The finite element method was used to analyze the temperature field, thermal-mechanical coupling stress field, and deformation of cylinder gasket. The calculation results were experimentally validated by measured temperature data, and comparison results show that the maximum error between calculated value and experiment value is 7.1%, which is acceptable in engineering problems. Based on above results and orthogonal experiment design method, the effects of five factors, including diameter of combustion chamber circle, diameter of coolant flow hole, length of the insulation zone between third and fourth cylinders, thickness of gasket, and bolt preload, on three indexes: temperature, stress, and deformation of gasket, were examined in depth. Through the variance analysis of the results, three important factors were identified to proceed later calculation. The dynamically guided multi-objective optimization strategy and the non-dominated sorting genetic algorithm were effectively used and combined to determine the optimal geometric parameters of cylinder gasket. Furthermore, calculation results suggest that temperature, stress, and deformation of the optimized cylinder gasket have been improved by 27.88 K, 16.84 MPa, and 0.0542 mm, respectively when compared with the origin object, which shows the excellent performance of gasket optimization and effectiveness of the proposed optimization strategy.

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Laboratory data on long-term sealing behaviors of two water-swelling materials for shield tunnel gasket

Cited by 3 publications

References 6 publications

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

Experimental data of water swelling characteristics of polymer materials for tunnel sealing gasket

Research on anti-parachute naval leak plugging umbrella based on water-absorbent swelling rubber material

Structure optimization of gasket based on orthogonal experiment and NSGA-II

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