1. In the design of pipe jacking, what particular areas on pipe joints should engineers
take care of?
Since in pipe jacking, the jacked pipes could hardly be jacked in the designed level and
alignment and some deviation from the original one is commonly acceptable provided that
the deviation are within the tolerance of the Contract. However, in order to avoid damage
made to the pipe joints due to overstressing, it is necessary to estimate the stress
concentrations resulting from these angular deflections.
Note: Pipe jacking is a trenchless method in which pipes are jacked underground from jacking pits and receiving pits.
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