| 摘要 |
The invention concerns a method of injecting primarily rock or concrete by pumping a sealing agent (19, 23) in pre-drilled holes (2, 3, 4, 32, 34) in the rock (1) or the concrete (33). The sealing agent (19, 23) is in liquid form and is pressed into fissures (5, 36) in the rock (1) or the concrete (33), sealing said fissures as it solidifies. While the sealing agent (19, 23) is still in liquid form inside the injection hole (2, 3, 4, 32, 34) it is made to flow out of the latter, while checked, to be re-used, in that another agent (19, 23) is pumped into the hole (2, 3, 4, 32, 34). A device for performing the method consists of a sleeve (6) applied in an injection hole (2, 3, 4, 32, 34) having an inlet/outlet (8) and a valve (9), and of a pipe (10) extending in a liquid-tight manner through the sleeve and into the hole (2, 3, 4, 32, 34), said pipe having an inlet/outlet (15) and a valve (14) positioned externally of the sleeve (6). A conduit (21, 25) leading from a supply (18, 22) containing a sealing agent (19, 23) is connectable to any one of these inlets/outlets (8, 15). A pump (20, 24) in the conduit (21, 25) is arranged to feed the sealing agent (19, 23) into the injection hole (2, 3, 4, 32, 34) to fill up fissures (5) in the rock (1) or the concrete (33). |
