水泥环氧复合灌浆技术研究及应用

不良地质体加固灌浆一直是水工建筑物基础处理的技术难题之一,近40多年来,利用水泥环氧复合灌浆技术成功解决了诸多工程难题。为总结该技术的研究和应用成果,阐述了水泥环氧复合灌浆材料的品种、研发历程;论述了复合灌浆的技术工艺,对复合灌浆的2种布孔方法(同孔复合和异孔复合)进行了定义和说明;明确了复合灌浆中化学灌浆的开灌标准应以受灌体透水率指标为依据;概括和总结了复合灌浆理论;介绍了水泥化学复合灌浆的典型工程案例。指出今后环氧灌浆材料研发应向高性能、无毒等方向发展;灌浆设备需提升其智能化及信息化水平;灌浆理论方面应加强室内模拟及可视化研究,完善水泥环氧复合灌浆理论体系,更好地为工程服务。

Cement-Epoxy Composite Grouting Technology:Research and Application

The reinforcement grouting of unfavorable geological body has always been a technical difficulty in the foundation treatment of hydraulic structures. In the recent four decades, cement-epoxy composite grouting technology has been used to solve many engineering problems successfully. In this paper, the research and application achievements of cement-epoxy composite grouting technology are summarized. The varieties and development process of cement-epoxy composite grouting materials are described. The techniques of compound grouting are expounded, and two arrangements of hole distribution of compound grouting (same hole compound and different hole compound) are defined and explained. The criteria of starting chemical grouting should be based on the water permeability index of the irrigated body. Moreover, the theory of compound grouting is summarized, and typical engineering cases of cement chemical compound grouting are introduced. In addition, research of epoxy grouting materials should develop towards high performance and non-toxic features in future. The intelligence and informatization level of grouting equipment needs to be improved. In terms of grouting theory, indoor simulation and visualization research should be strengthened to improve the theoretical system of cement-epoxy composite grouting and to provide better services for engineering.