公开(公告)号：US20180216314A1

公开(公告)日：2018-08-02

申请号：US15748114

申请日：2016-07-26

Applicant: SAIPEM S.P.A.

Inventor： Paolo BONEL ,  Diego LAZZARIN ,  Alberto SERENA

IPC: E02F5/10 ,  E02F5/14

CPC classification number: E02F5/105 ,  E02F5/104 ,  E02F5/106 ,  E02F5/107 ,  E02F5/108 ,  E02F5/109 ,  E02F5/145 ,  F16L1/16

Abstract: A trenching assembly lays a continuous pipeline in a trench dug in a bed with uneven bathymetry, the trenching assembly including a trench digging device having a main body; at least four ground contact units, each unit having a height adjustment device, to position each ground contact unit with respect to the main body independently. A trench cutting tool digs in the bed includes a cutting depth adjustment device, for positioning the cutting tool with respect to the main body. A detection device detects bed bathymetry. A control device simultaneously allows cooperation between the detection device, the height adjustment device of each ground contact unit, and the cutting depth adjustment device. A command device cooperates with the control device to adjustment each ground contact unit and the cutting depth adjustment device, to obtain a trench having a height difference lower than a predefined tolerance and a predetermined burial depth.

公开(公告)号：US20170276260A1

公开(公告)日：2017-09-28

申请号：US15505295

申请日：2015-08-21

Applicant: SAIPEM S.P.A.

Inventor： Paolo BONEL ,  Lorenzo GRANELLI

IPC: F16L1/20 ,  B23K37/053 ,  G01B11/25 ,  F16L13/02 ,  F16L1/19 ,  B63B35/03 ,  B23K31/02 ,  B23K37/02

Abstract: A method of joining a first pipe section to a second pipe section includes positioning the two pipe sections in an end-to-end configuration to define therebetween a joint to be welded, measuring the degree of alignment of the pipe sections when they are in the end-to-end configuration in a position ready for welding, ascertaining the relative movement required of the pipe sections in order to improve their alignment, effecting the relative movement so ascertained, and welding together the two pipe sections. The method may include the use of geometric data of the end of the pipes in order to ascertain the relative movement required of the pipe sections. A control unit may be used to calculate, using such data, a target orientation that lines up the pipe sections. The measuring step may be performed using, for example, a laser or a camera and backlight.