The present research is aimed at problems in the chemical material and the technology of coal rock mass reinforcement in coal mines of China. The reaction mechanism of polyurethane grouting material modified by silicate is introduced, and the reinforcing polyurethane grouting material and foaming polyurethane grouting material both modified by silicate are developed. Details of their performance are presented. The materials have been applied to field practice, and are proved to be superior in the treatment of roadway roof collapse and the reinforcement of crushed coal and rock mass. It could be used to replace the current polyurethane grouting material, and provides technical support for the high yield and high efficiency of modern coal enterprises.
Key words
material modified by silicate /
grouting reinforcement /
crushed coal and rock mass /
filling and closing
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 蒋硕忠. 我国化学灌浆技术发展与展望[J]. raybet体育在线
院报,2003,(5):26-28,35.(JIANG Shuo-zhong. Development and Prospect of Chemical Grouting Technique in China[J]. Journal of Yangtze River Scientific Research Institute,2003, (5):26-28,35.(in Chinese)
[2] 单长兵,刘元雪. 水玻璃改性聚氨酯注浆料的性能研究[J]. 建筑科学,2011,27(9):48-51.(SHAN Chang-bing, LIU Yuan-xue. Performance of Polyurethane Grouting Material Modified by Sodium Silicate[J]. Building Science, 2011,27(9): 48-51.(in Chinese)
[3] 冯志强,康红普. 新型聚氨酯堵水注浆材料的研究及应用[J]. 岩土工程学报,2010,32(3):375-380.(FENG Zhi-qiang, KANG Hong-pu. Development and Application of New Waterproof Grouting Materials of Polyurethane[J]. Chinese Journal of Geotechnical Engineering,2010, 32(3): 375-380.(in Chinese)
PDF(1356 KB)
