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Application of polyurethane/epoxy composite chemical grouting in the tunnel seepage-prevention project

BAIMing and YAO Xin-chen   

  • Online:2012-10-28 Published:2012-10-28

聚氨酯/环氧复合化学灌浆在隧洞防渗中的应用

白明1,姚鑫晨2   

  1. 1.中国神华能源股份有限公司,北京 100011;2.杭州国电大坝安全工程有限公司,浙江杭州310030

Abstract: In consideration of thin permeable rock and crumbling rock in hydropower projects, especially in the tunnel seepage prevention project, the paper introduces a grouting technique by use of hydrophilic polyurethane, hydrophobic polyurethane and epoxy composite chemical material. It is used in seepage treatment and permanent reinforcement for the rock. It improves the mechanical properties, intact stability and durability of the rock, worthy reference.

摘要: 针对水电工程隧洞防渗中容易遇到的透水岩体、破碎岩体,介绍了一种综合水溶性聚氨酯、油溶性聚氨酯、环氧灌浆材料的复合化学灌浆方法,通过对它们的科学配比,在提高岩体防渗性能的同时提高了岩体的力学性能、整体性和耐久性,达到了综合永久加固效果。