| 摘要 |
PROBLEM TO BE SOLVED: To restrain deviation of a fixing material from a top end directional bore hole by using the fixing material by adding an admixture by high condensation triazine and water soluble high polymer ether compounds to cement milk having the specific weight ratio by a specific value of cement weight. SOLUTION: A fixing material used for a cable bolting work method is prepared by adding an admixture of about 1% of cement weight to cement milk of 28 to 29% of the water-cement weight ratio. Here, the admixture is composed of a high condensation triazine compound and a water soluble high polymer ether compound. Normally, proper viscosity is imparted to cement grout and injection mortar by mixing this admixture with the cement grout and the injection mortar t largely improve filling performance. A cable bolt is fixed by using this fixing material to thereby prevent deviation of the fixing material from a bore hole at fixing the cable bolt in the top end direction. |
