漏风裂隙内无机固化泡沫浆液扩散特性研究

doi:10.16265/j.cnki.issn1003-3033.2019.10.005

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (10): 24-30.doi: 10.16265/j.cnki.issn1003-3033.2019.10.005

漏风裂隙内无机固化泡沫浆液扩散特性研究

王涛¹, 鲁义¹ 副教授, 施式亮¹ 教授, 王刚^2,3 副研究员, 晏志宏¹

1 湖南科技大学资源环境与安全工程学院,湖南湘潭 411201;
2 煤科集团沈阳研究院有限公司,辽宁抚顺 1131222;
3 煤矿安全技术国家重点实验室,辽宁抚顺 113122

收稿日期:2019-07-05 修回日期:2019-09-11 出版日期:2019-10-28 发布日期:2020-10-27
作者简介:王涛 (1994—),男,湖南耒阳人,硕士研究生,主要研究方向为火灾防治及防灭火材料。E-mail:wangtaohnly@163.com。
基金资助:
国家自然科学基金资助(51604110,51774135,51504093,51874131);湖南省自然科学基金青年科学基金资助(2017JJ3074);中国博士后科学基金资助(2017M612558,2018T110831);教育部高等学校特色专业建设点项目(TS11624)。

Research on diffusion properties of inorganic solidified foam slurry in air leakage fracture

WANG Tao¹, LU Yi¹, SHI Shiliang¹, WANG Gang^2,3, YAN Zhihong¹

1 School of Resource Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan Hunan 411201,China;
2 CCTEG Shenyang Research Institute, Fushun Liaoning 113122,China;
3 China State Key Laboratory of Coal Mine Safety Technology, Fushun Liaoning 113122,China

Received:2019-07-05 Revised:2019-09-11 Online:2019-10-28 Published:2020-10-27

摘要/Abstract

摘要： 为研究无机固化泡沫(ISF)浆液在漏风裂隙内扩散及压力场分布特性,基于ISF浆液黏度时变模型,研究ISF浆液在漏风裂隙中受力和流动特性、恒定风量漏风气流下ISF浆液扩散形态及压力场分布特性;建立ISF浆液在水平漏风单裂隙中逆风流动扩散理论模型、在恒定漏风速率水平裂隙扩散数值模型,并对比验证理论及数值模型的合理性。研究表明:在恒定流量注浆工况下,延长注浆时间可增加注浆压力,但ISF浆液逆风扩散距离增长趋于停止,在漏风条件下现场注浆封堵施工设计需根据注浆工程预设注浆压力,同时设定漏风影响参数。

关键词: 无机固化泡沫, 裂隙注浆, 黏度时变, 逆风扩散, 数值模拟

Abstract: In order to explore diffusion properties and pressure field distribution of inorganic solidified foam slurry in air leakage fracture, the force and flow analysis of inorganic solidified foam slurry in air leakage fracture was carried out based on its time-varying model of viscosity. The mechanical and flow characteristics of inorganic solidified slurry in air leakage fissures were studied, and the characteristics of diffusion and pressure field distribution under constant air volume and leakage airflow were discussed. A theoretical model of adverse wind flow and diffusion of inorganic solidified foam slurry in horizontal air leakage single crack was established, and a numerical model for horizontal crack diffusion with constant leakage rate was set up. The rationalities of theoretical and numerical models were verified by comparison. The results show that under the constant flow grouting condition, prolonging the grouting time will greatly increase the grouting pressure, but the increase in the diffusion distance of inorganic solidified foam slurry against the wind tends to stop, and that under the condition of air leakage, the grouting pressure should be preset according to the grouting project and influence parameters of air leakage should be set at the same time.

Key words: inorganic solidified foam, crack grouting, time-varying viscosity, upwind diffusion, numerical simulation

中图分类号:

X936

王涛, 鲁义, 施式亮, 王刚, 晏志宏. 漏风裂隙内无机固化泡沫浆液扩散特性研究[J]. 中国安全科学学报, 2019, 29(10): 24-30.

WANG Tao, LU Yi, SHI Shiliang, WANG Gang, YAN Zhihong. Research on diffusion properties of inorganic solidified foam slurry in air leakage fracture[J]. China Safety Science Journal, 2019, 29(10): 24-30.

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漏风裂隙内无机固化泡沫浆液扩散特性研究

Research on diffusion properties of inorganic solidified foam slurry in air leakage fracture

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