The paper briefly introduces the high-pressure grouting construction technologies,mainly describes subgrade karst high-pressure grou-ting reinforcement principles,construction technology,and construction procedures and grouting and irrigation and so on,and finally illustrates grouting effect examining measures,which will be good for guaranteeing engineering construction technology smooth.%对高压注浆施工技术作了简单介绍，主要对路基岩溶地区高压注浆加固原理、施工工艺、施工流程、压注灌浆等进行了阐述，并说明了注浆效果检验措施，有利于保障工程施工技术的顺利进行。
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