Ultrafine anti-swelling grouting material with ultra-fine, anti-swelling, high strength, early strength, anti-permeability, good note, good stability, is better than ordinary cement and chemical grouting materials;Study on numerical simulation and field application effect of grouting reinforcement effect shows that ultrafine anti-swelling grouting material can effectively improve the properties of broken rock, restore the strength of rock, maintain the stability of the roadway, and it is conducive to the safety operation of underground production.%超细防膨胀注浆材料具有超细、防膨胀、高强、早强、防渗透、可注性好、稳定性好等特性，优于普通水泥及化学注浆材料；注浆加固效果的数值模拟及现场工程应用效果研究表明，超细防膨胀注浆材料可以有效改善破碎围岩的性质，恢复围岩的强度，维护巷道的稳定性，有利于井下安全生产的正常运行。
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