Patent ID: 8899877
Filing Date: 2014-12-02
Classification: B63G,E02F,F16L

Abstract:
1. A method of underground laying a continuous elongated member in a bed of a body of water, wherein the continuous elongated member lies on the bed of the body of water along a given path, the method comprising: fragmenting a soil mass in the bed along the given path and under the continuous elongated member, so as to form in the bed two scarp slopes bounding the fragmented soil mass by two soil masses susceptible to slide; advancing a work assembly including two supporting walls that include tracks connected thereto, along the given path in an advancing direction, and along the respective two scarp slopes, by advancing one or more drive assemblies securing the work assembly; and transferring the fragmented soil mass between the two supporting walls, so as to promote sinking of the continuous elongated member between the two supporting walls; and adjusting a depth of the work assembly within the bed by moving the two supporting walls and tracks connected thereto along connecting members movably fitted within the tracks and connecting the two supporting walls to the one or more drive assemblies, while advancing the work assembly along the given path, by adjusting relative position between the work assembly and the one or more drive assemblies.