| 摘要 |
A method of forming a J-tube system is provided in which the J-tube is formed from a tubing arrangement comprising a vertical section (1) of pipe with a curved section (2) at the bottom and with a vertical extension piece (3) extending below the heel of the J-tube. During installation, the upper vertical section (1) is secured in position by grouting, i.e. by filling the space between the outside of the upper section (1) and the inside of a top support or supports (4) with grout. |
