带压注浆封孔用聚氨酯材料的性能研究及应用  

Properties and Application of Polyurethane Material for Pressurized Grouting Sealing

作　　者：张云峰[1,3] 王圣程 ZHANG Yunfeng;WANG Shengcheng(School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116,China;School of Civil Engineering,Xuzhou University of Technology,Xuzhou 221018,China;Xuzhou Safe-zike Polymer Materials CO,LTD.,Xuzhou 221008,China)

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116 [2]徐州工程学院土木工程学院,江苏徐州221018 [3]徐州赛孚瑞科高分子材料有限公司,江苏徐州221008

出　　处：《徐州工程学院学报（自然科学版）》2021年第1期20-23,45,共5页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目(51904270)。

摘　　要：为了提高煤矿瓦斯抽采浓度,试验研究了带压注浆用聚氨酯封孔材料的微观与宏观性能,并进行了现场试验.研究结果表明:随着聚氨酯硬泡材料密度的提高,聚氨酯孔隙的密致程度上升,压缩强度成线性增加,发泡压力也逐渐增加.综合考虑封孔效果和经济性,最终选用密度为164.5 kg/m^(3)的聚氨酯硬泡作为带压注浆技术的封孔原料.山脚树矿试验表明,带压注浆封孔技术能显著提高钻孔的瓦斯抽采浓度和抽采量.In order to improve the concentration of gas drainage in coal mine,the micro-macro properties of polyurethane sealing materials for pressurized grouting were studied,and field tests were carried out.The results show that with the increase of the density of the rigid polyurethane foam,the density of the pores increases,the compressive strength increases linearly,and the foaming pressure increases gradually.Considering the sealing effect and economy,the polyurethane rigid foam with density of 164.5kg/m^(3) is selected as the sealing material of the pressurized grouting technology.The field application in Shanjiaoshu Mine shows that the pressurized grouting sealing technology can significantly improve the gas drainage concentration and capacity of the borehole.

关 键 词：带压注浆封孔 聚氨酯硬泡 煤层钻孔 瓦斯浓度 材料性能 

分 类 号：TD712.6[矿业工程—矿井通风与安全] TQ323.8[化学工程—合成树脂塑料工业]