SU1735504A1 - Anchorless dredge - Google Patents

Abstract

use: development of soils in underwater holes. SUMMARY OF THE INVENTION: The projectile comprises piling and technological pontoons. The latter are connected between the invention in the field of hydraulic engineering and are intended for the development of soils in underwater fences. The purpose of the invention is to increase work efficiency by improving the maneuverability and reliability of the operation of the dredger. FIG. 1 shows a dredger, side view; in fig. 2 - the same plan view. The suction dredger consists of a technological pontoon 1 with a soil intake system 2 and a pile pontoon 3 interconnected by a hinge unit 4. On pontoons 1 and 3, sections 5 and 6 of the pressure slurry line with a hinge connection 7 are rigidly fixed. The pile pontoon 3 is equipped with a pressure piling device with two cool piles 8. On the sides of the technological pontoon 1, there are L-shaped cantilevers 9 with rope blocks 10 through which the ropes of 11 pilotage winches 12 placed on the deck of the technological pontoon are passed. Freedom hinge knot and knot piling pressure stroke. On the pontoons posted pressure slurry pipe. Pressure piles are located on the pile pontoon. The pile pressure head assembly is made of L-shaped consoles with cable blocks and papillary winches. Ropes last passed through the blocks. The free ends of the ropes are secured to the pile. Pressure slurry pipe is made in the form of two hinged links. The hinged connection of the pressure slurry pipe is located above the hinge assembly of the pontoons. Each link of the floating slurry pipeline has a locking device. The latter consists of side lugs and connecting beams. 1 hp ff, 2 ill. The ends of the ropes 11 are fixed on piles x 8 at a distance from the point equal to the pile of soil immersed in the soil to a depth of N. G-shaped cantilevers 9, piles 8 and winches 12 with ropes 11 constitute the pile assembly of the dredge . Swivel 7 sections 5 and 6 of the pressure slurry pipe is located above the hinge of the connected pontoons 1 and 3 and coaxially with him. The floating slurry pipeline consists of pivotally connected links 13. Each link 13 is provided with a locking device consisting of side lugs 14 and connecting beams 15, the ends of which are connected to the side lugs of adjacent links 13. The device also has a primer-suction device 16 and bottom soil 17. Unless Suction dredger operates as follows. The dredger is inserted into the bottomhole and the cool piles 8 are lowered, which, immersed in VJ SO, ate

Description

soil 17 to a depth of H, at the same time serve the fixed crust of papilonazhnyh ropes 11. A ground pump is put into operation and a soil suction device 16 is lowered, brought to the ground at a bottom 17. The left papilionic winch 12 is turned on. Due to the tension of the rope through block 10, a moment of rotation is applied, applied to the console 9 relative to the axis of the hinge assembly 4 in the direction of the cool pile 8. As the pile pontoon 3 is stationary, technological pontoon 1 rotates to the left along the arc of a circle and primer attachment 16. The primer is being developed, the pulp enters the suction attachment 16, and from there, via the primer system 2, it flows to the submersible pump, which is fed into the discharge piping.

To reduce head loss in a floating pressure slurry pipeline, the number of bends on it is reduced. For this, several hinges are left free, and the links 13 between them are joined into inflexible sections using fixing devices in the form of connecting beams 15 inserted into the lugs 14. Due to the removal of the rope blocks on the cantilever 9, a reduction in traction force of the winch is achieved at turn the technological pontoon 1 during the development of the soil. By performing the L-shaped cantilever 9, the blocks 10 are buried in the water, which decreases the angle of the haul rope 11, and therefore

13 b 8

/// V // W / JV /// /// /// /////// W MlS // W W M

b 11 1 Ю2 17 76

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Claims (2)

a decrease in the component of the pulling force acting on pulling out the pile. Claims 1. Beamless suction dredger, including pile and technological pontoons interconnected by a hinge assembly and a pile pressure head assembly, pressure slurry pipe placed on them, pressure piles placed on a pile pontoon, and a floating slurry pipeline consisting of pivotally connected links, characterized in that, in order to increase work efficiency by improving its maneuverability and reliability of operation, the pile pressure head assembly is made of L-shaped cantilevers attached to the sides of the process pontoon with cable units and from the technological pontoon located on the deck papilonazhnyh winches, while the ropes of the latter are passed through the blocks, and the free ends of the ropes are fixed on the pile at a distance from the point equal to the part of the pile immersed in the ground. 2. Snar d according to claim 1, of which is that the pressure slurry pipe is made in the form of two links rigidly fixed on the process and pile pontoons and connected hingedly, while the hinged connection of this slurry pipe is located above the hinged knot of the connected pontoons and coaxially with it, and each link of the floating slurry pipeline is equipped with a locking device, consisting of side lugs and connecting beams, while the ends of the latter are connected with side lugs of adjacent links. Ni tn