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在岩石注浆领域内，80年代取得的屈指可数的几个重大进展之一是新型多层注浆系统（MPSP）的发明。由意大利Rodio集团公司研制的MPSP系统可克服在破碎、坍塌、泄漏及其它复杂地层中钻进所遇到的问题。在亚洲、欧洲几处高坝施工中，该系统均成功地用于加固孔壁。在用水泥浆加固孔壁时，该系统能改进岩石的力学性质。MPSP系统很大程度上是由用于上层中的密封注浆管衍生出来的，但二者又有所不同。利用该系统进行注浆作业时，水泥浆首先进入到钻孔内的塑料注浆管或钢制注浆管中，然后再由注浆管上的出浆孔（直径为4mm）压入到岩石内。与土层密封注浆不同，
Within the field of rock grouting, one of the few significant advances in the 1980s was the invention of the new multi-layer grouting system (MPSP). The MPSP system, developed by the Rodio Group of Italy, overcomes the problems encountered in drilling, crushing, collapsing, leaking and other complex formations. In several high dam construction in Asia and Europe, the system has been successfully used to reinforce the walls. The system improves the mechanical properties of the rock as it reinforces the walls with grout. The MPSP system is largely derived from the seal grout used in the upper tier, but the two are different. When using this system for grouting, the grout first enters into the plastic grouting pipe or steel grouting pipe in the borehole, and then it is pressed into the rock by the outlet hole (diameter 4mm) on the grouting pipe Inside. Unlike soil grouting,