SU359347A1 - BOTTOM IMPORTANT - Google Patents

Description

The invention relates to the field of marine dredging, carried out to create underwater excavations in dense and hard soils in waters subject to rough sea, by transporting the extracted soil to an underwater landfill or to an unloader.

Dredging works are carried out at approaches to seaports or in the waters of reservoirs in order to deepen navigable routes or create pits for hydraulic structures. With the increase in the size and draft of transport vessels, it is generally required to increase the dimensions of existing approach or transit channels, as well as to create new deep-sea shipping routes.

Known mnogocherpakovnye shells with groundwater scows, mooring to their board, are not suitable for work on the waves, and mnogochistavnyy samostavnym dredger is not very effective, since every time you travel it, you need to install the Koreas and remove them, and this is in terms of the seas. long, laborious and dangerous.

Known dredging, made in the form of a vessel, such as a catamaran, which is equipped with a scoop tower, a frame-lifting bed, a scoop frame with a multi-chain chain and a grooved spreader.

a device that supplies soil and a ground shuck that is moored at the side of the vessel.

The performance of such dredging projectile is limited by the excitement of the sea.

The purpose of the invention is to ensure the loading and removal of soil with scows during rough seas.

To do this, in the proposed dredging de, made in the form of a catamaran ship, a slipway is arranged between the catamaran hulls, and ballast tanks are installed inside the hulls, draining or filling up which empty onto the slipway and lower scandas from the stocks. The schalands, wound up between the catamaran hulls and raised to the stocks, are not affected by the waves during loading with soil.

FIG. 1 shows the proposed dredging d, side view; in fig. 2 - snard d and scow, top view.

The dredging vessel is a catamaran-1 vessel, on which a scoop tower 2 and a frame-lifting bed 3 are installed. The scoop frame 4 with a scoop chain 5 is located between the catamaran hulls. The soil pit 6 is equipped with a ground drain device 7, for example a tray or conveyor, which is made sliding and pivoting in the horizontal and vertical planes. In the bottom of both

the catamaran hulls are connected by transverse beams 8, on which a building berth for the dredge barges 9 is arranged, and ballast tanks are installed inside the hulls.

To carry out the work, the projectile is installed on the dredging facility on the bark and is moved as usual with the help of camp and winch ropes and core ropes. Water is taken into ballast tanks in order to lift the soil-shaland scaffolds on the slipway. Upon reaching the required draft, the scow is introduced into the space between the catamaran hulls and set above the berth, the ballast is pumped out, and the scow is raised to the berth, holding the JO sliding board stops. After installing the scows on the slipway, dredging works are carried out with the removal of soil into the hold of the scows.

The retractable rotary soil removal device 7 ensures the fullness and uniformity of the load of the barge of the barge. In the course of operation, the regulation of precipitation and the diverting of the projectile are carried out by changing the amount of ballast in the ballast tanks. After the scows are filled with soil, the projectile takes up ballast again, the scow is submerged in water and comes down from the stocks for the removal of the ground, and the other is taken by the scows.

Subject invention

Dredging, including a multi-chain on a lifting frame,

a scoop tower, a drainage device, a catamaran ship and a ballasting system, characterized in that, in order to ensure the loading of the ground into the scows during a rough sea, there is a slipway between the catamaran ship hulls.

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