〗Experimental Study on Grouting Methods of Borehole Wall Protection with Cementing in Xiaojingou Manganese Mine of Zunyi

Abstract:

Cementing protection is a common method of borehole wall protection in solid core drilling, but it is not an easy process at the same time. According to the slurry performance and its fluidity in the borehole, analysis and comparison were made with practical grouting experience in ZK3901. It was concluded that when different grouting method and slurries with different water-cement ratio were applied at different hole depth, the wall protection effects were different also.