ANCHORING MATERIAL FILLING METHOD AND SEAL UNIT

PROBLEM TO BE SOLVED: To reduce labor for seal unit mounting work in constructing a post- filling lock bolt and ensure filling of anchoring material. SOLUTION: A plate 110a with a seal member 110b formed of elastic material and provided on one face is fitted into the base end of a lock bolt 104 with a filling passage 105 to be set on a borehole 103 so that thrusting force can be applied from the base end of the lock bolt 104 to the depth direction of the borehole to fill fixing material through the filling passage 105 into the borehole 103 in the condition that the lock bolt 104 is thrusted. The lock bolt 104 is provided with an exhaust passage 106 to apply suction force therethrough into the borehole 103 at the fill time of the anchoring material.