| 摘要 |
This invention relates to a method for stabilising a multi-walled structure and, in particular, to a securing pin assembly and a method for stabilising a connection between a wind turbine tower and a supporting structure such as a mono-pile. The structure comprises a first wall (46) and a second wall (36) and a filler layer such as grout (34) sandwiched between the walls. The first and second walls provide respective first and second sides (17, 64) of the structure. At least one hole (40) is formed extending through the walls and filler layer, from the first to second sides of the structure. A tube (54), which has a central bore (66), is inserted through the hole. A first end (60) of the tube extends from the first side (17) of the structure and a second end (62) of the tube extends from the second side (64) of the structure. A peg (68) is inserted through the bore (66) of the tube. The peg has on the first side of the structure a head portion (74) which is at a first end (69) of the peg and which has an outer diameter greater than the diameter of the tube bore. The peg is pulled through the tube towards the second side (64) of the structure so that the head portion (74) causes the first end of the tube to deform radially outwards so that the first end of the tube (6) expands beyond the diameter of the tube bore (66) to bear against the first side of the structure. A first securing means (80) is secured to a second end (62) of the peg on the second side (64) of the structure such that the first securing means bears against the second end of the tube in order to secure the expanded first end (60) of the tube. A second securing means (84, 86) is secured to the second end (62) of the tube such that the second securing means bears against the second side (64) of the structure. The deformed first end (60) of the tube on the first side of the structure and the second securing means on the second side of the structure clamp together the first and second walls (46, 36) of the structure thereby applying a compressive force to the filler layer (34) between the walls. |
