Embedding tube for traction embedding construction method

摘要

(57) Abstract Objective Small caliber tube (7A) (7B) with traction jacking methodWhen embedding in the earth, break and burble of the joint are prevented. Constitution To be hauled the enlargement head (10) by, the starting shaft(1) and the arrival shaft the embedding tube (2) embedding between (7A) (7B) extending to specified length A in the toe of switch and the rear end, surface oppositeIn direction state step for Inlaying being packed junction (60A) and (60B)It forms.