高掺量粉煤灰凝胶材料围岩注浆加固技术研究

Study on Grouting Reinforcement Technology of High Content Fly Ash Gel Material

针对新疆大南湖一矿永久避难硐室片帮、顶板变形、底鼓、裂隙发育等情况,进行了高掺量粉煤灰注浆加固研究。通过对注浆后的围岩胶结加固效果进行分析可以得出,高含量粉煤灰注浆材料能够较好地渗透进破碎围岩裂隙并与围岩进行充分胶结,增加围岩完整性,提高围岩的承载能力。

In view of the situation of roof deformation,floor heave and crack development of permanent shelter chamber in Dananhu No.1 Mine in Xinjiang,the grouting reinforcement of high content fly ash is studied.Through the analysis of the cementation effect of surrounding rock after grouting,it can be concluded that the high content fly ash grouting material can penetrate into the fracture of broken surrounding rock and cement fully with surrounding rock,increase the integrity of surrounding rock and improve the bearing capacity of surrounding rock.