瓦斯膨胀条件下土壤瓦斯突出的实验与数值研究

IF 0.9 4区工程技术 Q4 ENGINEERING, CIVIL

International Journal of Offshore and Polar Engineering Pub Date : 2022-06-01 DOI:10.17736/ijope.2022.jc862

Danning Liu, Peng Li, Xuhui Zhang, Xiaobing Lu, Jiyan Qiao, Zhenpeng Leng, Yan Zhang

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引用次数: 0

摘要

通过实验和数值模拟研究了天然气水合物离解引起的土壤突出破碎。结合颗粒流动力学理论，建立了考虑相间作用力和颗粒间摩擦作用的稠密离散颗粒模型（DDPM），揭示了土体的突出形态。几何特征的数值模拟结果与高速摄影结果一致。此外，还研究了初始瓦斯压力和上覆层厚度对瓦斯突出发生的影响。

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Experimental and Numerical Study of Gas Outburst with Soil Under Gas Expansion

The outburst fragmentation of soil caused by the dissociation of the gas hydrate was studied based on experiments and numerical simulation. The dense discrete particle model (DDPM) combined with the kinetic theory of granular flow (KTGF) was presented to reveal the outburst morphology of soil, considering the interphase forces and frictional effect between soil particles. The numerical simulation results in geometric features are consistent with the high-speed photography results. Moreover, the effects of initial gas pressure and thicknesses of the overlying layer on the occurrence of gas outburst were investigated in the experiments.

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来源期刊

International Journal of Offshore and Polar Engineering ENGINEERING, CIVIL-ENGINEERING, OCEAN

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The primary aim of the IJOPE is to serve engineers and researchers worldwide by disseminating technical information of permanent interest in the fields of offshore, ocean, polar energy/resources and materials engineering. The IJOPE is the principal periodical of The International Society of Offshore and Polar Engineers (ISOPE), which is very active in the dissemination of technical information and organization of symposia and conferences in these fields throughout the world. Theoretical, experimental and engineering research papers are welcome. Brief reports of research results or outstanding engineering achievements of likely interest to readers will be published in the Technical Notes format.