| 摘要 |
Method for positioning, from the level of the ground (6), a branch connection (10) on a pipeline (2), in which the following operations are carried out: a) digging an exploration hole (8), b) using a branch connection (10) which comprises a main plate (12) and a fixing plate (22), c) using a device (1) which comprises: a support (36), retaining means (38) which are connected to the support (36), a foot (40) which is articulated so as to rotate relative to the support (36) about a first axis of rotation (42), actuation means (44) for displacing the foot (40) in rotation relative to the support (36) between an introduction position and a pressing position, d) placing the foot (40) in an introduction position, e) retaining the main plate (12) on the device (1), f) positioning the support surface (14) of the main plate (12) against the pipeline (2), g) bringing the foot (40) into a pressing position, h) fixing the main plate (12) and the fixing plate (22) together around the pipeline (2), i) welding the main plate (12) to the pipeline (2), removing the positioning device (1), placing the branch connection and the pipeline in communication and refilling the exploration hole.
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