The clay slurry, a new ideal grouting material, is used in surface pre-grouting for the main and the ancillary shafts in Mine 13 of Pingdingshan and has gained excellent effects. Some experience has been drawu.
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孙有毅.粘土水泥浆在井筒地面预注浆中的应用[J].钻探工程,1996,(5):49-51.Sun Youyi. Use of Clay Slurry in Surface Pre-grouting for Mining Shafts[J]. Drilling Engineering, 1996,(5):49-51.