| 摘要 |
<p>The method for restoring an underwater wood, concrete or steel piling or other underwater structure includes the steps of: placing a jacket around a portion of a piling to be restored; securing the jacket in place around the piling so as to create a closed, annular space between the piling and the jacket; injecting, in at least one location at the lower end of the annular space, an epoxy resin composition into the annular space while at the same time venting the annular space in at least one location at the upper end of the annular space until the epoxy resin composition begins to escape from the upper end of the annular space. The underwater injection jacket comprises a sheet of flexible material having an upper edge and a lower edge and which is coilable into a generally cylindrically shaped jacket about an underwater piling with first and second mating edges of the sheet adapted to be secured in place relative to each other to form the jacket about the piling. A first sealing strip is provided along the lower edge of the sheet and a second sealing strip is provided along the upper edge of the sheet for establishing lower and upper annular seals between the jacket formed by the sheet and the piling when the mating edges are secured in place thereby forming a closed annular space within the jacket. A clamping system is provided for securing the mating edges in place relative to each other and in a sealed manner. The jacket also has inlet ports for the injection of epoxy resin into the annular space and venting ports for venting water from the annular space. Additionally, two semi-annular space portions can be formed so that epoxy resin composition can be injected into one side of the jacket while a vacuum is drawn on the other side of the jacket to seal cracks within the piling.</p> |
