Apparatus and method for padding the ground below a duct using excavated soils, equipment for compacting soil below a duct, and a soil-compacting mechanism

A device for padding the ground below a duct using excavated soil comprising:

• at least one vehicle with a travelling unit for displacement over the ground surface, which carries
• equipment for filling a trench with the duct with excavated soil, the equipment for filling a trench including a soil feeding organ, a transport organ and a device for lifting-lowering the soil feeding organ relative to the vehicle;
• and
• equipment for compacting the soil below the duct including a soil compacting mechanism with soil compacting organs and a device for hanging the soil compacting mechanism to the vehicle with the capability of forced displacement and rigid fastening relative to the vehicle in a plane normal to the displacement direction of the vehicle,
• wherein the soil feeding organ is located at an end face of the travelling unit and is wider than the vehicle, the device for hanging the soil compacting mechanism is fitted with a disconnection mechanism for cyclic displacement of the soil compacting organs relative to the vehicle in the displacement direction of the vehicle, the soil compacting organs being a rammer-type and located behind the zone of soil discharging from the transport organ in the displacement direction of the vehicle.

Equipment for soil compacting below a duct, including:

• a soil compacting mechanism including at least two soil compacting organs for compacting soil from both sides of the duct, each soil compacting organ having a working element which compacts soil under the duct;
• and
• a device for hanging the soil compacting mechanism to a vehicle including:
• an integrated mechanism for forced displacement and rigid fastening of the soil compacting mechanism relative to the vehicle in a plane normal to the displacement direction of the vehicle, wherein the device is fitted with a disconnection mechanism for cyclic displacement of the soil compacting organs relative to the vehicle in the displacement direction of the vehicle, the disconnection mechanism including a kinematic joint which is connected into a sequence of kinematic elements of the integrated mechanism and moves in a plane parallel to the displacement direction of the vehicle.

A device for padding the ground below a duct using excavated soil comprising:

• at least one vehicle with travelling unit for displacing the vehicle over the ground surface, the vehicle carries:
• equipment for filling a trench with the duct with excavated soil, the equipment for filling the trench including a soil feeding organ, a transport organ and a device for lifting and lowering the soil feeding organ relative to the vehicle, wherein the soil feeding organ is located at an end face of the travelling unit and is wider than the travelling unit, and
• equipment for compacting the soil below the duct including a soil compacting mechanism with soil compacting organs and a device for hanging the soil compacting mechanism to the vehicle with the capability of forced displacement and rigid fastening relative to the vehicle in a plane normal to the displacement direction of the vehicle, the device for hanging the soil compacting mechanism is fitted with a disconnection mechanism for cyclic displacement of the soil compacting organs relative to the vehicle in its displacement direction, the soil compacting organs being a rammer-type and being located behind the zone of soil discharging from the transport organ in the displacement direction of the vehicle,
• the soil compacting mechanism including a base which carries the soil compacting organs, each soil compacting organ including
• a connecting rod with a working element at a lower end of each connecting rod,
• a lower lever which is connected to the connecting rod by a first hinge, and to the base by a second hinge, and
• an upper lever which is connected to an upper end of the connecting rod by a third hinge, and to the base by a fourth hinge,
• the soil compacting organ being formed such that the fourth hinge is shifted relative to the second hinge towards the connecting rod, the spacing of the first and the third hinges is greater than spacing of the second and fourth hinges, or the spacing of the third hinge and the fourth hinge hinges is greater than the spacing of the first hinge and the second hinge.