SU1206368A1 - Method and apparatus for reconstructing a mooring pier on clayey foundation - Google Patents

Abstract

I. The method of reconstruction of the quay of the quay on a clay base by dredging the water area and increasing the bearing capacity of the soil in front of the quay face wall. characterized in that, in order to improve work efficiency, after its deepening a multi-cellular reinforced concrete frame is laid in front of the front wall, it is pushed into the ground by a static load, and a vertical electroosmotic flow is directed to the frame, creating around the frame the catholyte layer, after which the frame – soil system is monolithicized by an electroosmotic flow in the opposite direction, and the contact zone та t .1 with the front wall of the quay is injected fixed solution. (L

Description

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2. A device for reconstruction of a quay berth on a clay base, containing a multi-cell chamber of vertical walls and partitions, a supporting structure, sheet electrodes with insulating plates, rods and hydraulic cylinders, as well as pontoons, which

 The invention relates to hydraulic construction, in particular to methods and devices for the reconstruction of port facilities, and can be used in sea and river ports in the reconstruction of mooring quays with simultaneous deepening of the water area.

The purpose of the invention is to increase efficiently the work.

Figure 1 shows the device at the moment of indentation of a multi-colored frame into the ground, a vertical section; figure 2 - the same plan; Fig. 3 shows a detail of the lower part of the device at the time of the end of the plunging into the ground of the multi-cell frame.

The device consists of a multi-cell chamber formed by vertical walls 1 and partitions 2 made of electrically insulating material. The upper part of the cellular cell is rigidly connected with the supporting structure 3, which connects the camera with pontoons 4 equipped with ballast compartments. Hydraulic cylinders 5 are fixed to the supporting structure 3. The pistons of the hydraulic cylinders 5 are connected to the rods 6 supported on insulating plates 7 fitted with plates. - by electrodes 8, which are connected by cable 9 (.Lig.Z) with a DC source (not shown.

The lower edge of the walls 1 and partitions 2 is equipped with a supporting platform-. MI 10, electrical connectors 11 and vertical fixtures 12, corresponding in layout and shape to similar elements on a multi-piece reinforced concrete frame 13. Upper part of electrical connectors 206368

operating efficiency, the lower edge of the walls and partitions of the chamber is provided with supporting platforms with vertical clamps and ground-isolated electrical connectors, and in the wall of the chamber adjacent to the front wall of the embankment, channels are made of the collapsed holes of the anchoring solution.

mov 11 is connected by cable 14 (Fig. E / with a DC power source (not shown), the lower part of electrically connectors 11 is connected to the armature of the cellular frame 13. Wall 1 adjacent to the front wall 15 of the reconstructed embankment (FIG. 3), . performed with ducts 16, the outlets of which are provided with valves 1 7.

The method is carried out as follows.

After its deepening, a multi-cellular reinforced concrete frame 13 is placed at the bottom of the water area. A device is transported afloat to the immersion of the frame 13; cell so that its supporting pads 10, vertical locks 12 and electrical connectors 11 come into contact with the corresponding frame elements 13. Under the action of a static load from the frame device and 13 sinks into the ground at a certain depth. Further immersion is carried out with the simultaneous effect of an electroosmotic flow directed to the frame and creating a layer of electroosmotic transferred liquid, catholyte, around the frame, facilitating the immersion of the frame. For this purpose, the sheet electrodes 8 are immersed on the ground with the help of hydraulic piston 5 and the rods 6 and pressed against it with a minimum force sufficient to create electrical contact of the electrodes 8 with the ground. The cables 14 are connected to the negative pole of the DC source, the cables 9 are connected to the positive pole of the DC source, include a DC source and further immersion into the ground of the frame 13 is effected simultaneously with the electroosmotic flow directed to the frame 13. the direct current field electrophoretic souls squeeze the soil particles from the frame 13 and contribute to its immersion. Hydrogen bubbles emitted at the surface of frame 13 also facilitate the immersion of the frame.

In the process of immersing the frame 13, the device maintains a minimum pressure in the hydraulic cylinders, which ensures the electrical contact of the electrodes 8 with the ground.

After the frame 13 is submerged to the optimum depth, which is determined by the static calculation of the front wall of the reconstructed embankment and, taking into account the possible erosion of 0.7–1.5 m, the frame – ground system is monolithic. To this end, the cables 14 are connected to the positive pole of the DC source, and the cables 9 to the negative pole. When this occurs, electroosmotic compaction of the soil surrounding the frame 13 occurs. Through channels 16 a fixing solution is supplied under pressure, which additionally strengthens the zone of contact of the frame 13 with the front wall of the embankment 15. During the maintenance of the frame – ground system, it supports this; pressure in hydraulic cylinders 5, which provides

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the fixed position of the frame 13 and the device as a whole.

After the process of monolithing the frame-to-soil system, which is fixed by a sharp increase in the electrical resistance of the circuit and an increase in the pressure of the fixing solution in the channels 16, is completed, the device is removed when the DC source is disconnected by increasing the force in the hydraulic cylinders 5, creating the necessary emphasis on the soil through the plates 7, as a result of which the walls 1 and the rear 5 of the towns 2 of the multi cell chamber begin to lift, the supporting platforms 10, the latches 12 and the electrical connectors 11 with the corresponding elements of the ram 13, and

20 formed under the walls 1 and partitions 2, the space is filled with soil due to its plastic deformations developing under the pressure of the plates 7

25 extracting walls 1 and partitions 2 from the ground, the ballast compartments of the pontoons are freed from water, the device is transferred afloat to the indentation point of the next frame and operation

.JQ are repeated.

Thus, the invention enhances the mooring quay by introducing a rigid horizontal structural element — a multi-cell frame — and homogenizing it with the surrounding ground in front of its front wall, which allows increasing the bearing capacity of the embankment on a clay base without the device of a rim and without associated with its breeding of a long berth from operation.

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VNIIPI Order 8661/29 Circulation Circuit Subscription Branch Filial PPP Patent, g.Uzhhorod, ul.Proektna, 4

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Claims (2)

1. The method of reconstruction of the quay embankment on a clay base by deepening the water area and increasing the bearing capacity of the soil in front of the front wall of the embankment. characterized in that, in order to increase work efficiency, a multicell reinforced concrete frame is laid on the bottom of the water area after it is deepened in front of the front wall, pressed into the ground with a static load, and simultaneously they act on the frame-soil system with a vertical electroosmotic flow directed to the frame, creating a layer around the frame catholyte, after which the frame-soil system is monopolized with reverse osmosis osmotic flow, and the zone of contact of the frame with the front wall of the embankment IS injected with a fixing solution. SU „„ 1206368 Figure 1 2. The device of the day of reconstruction of the quay embankment on a clay base, containing a multi-cell chamber of vertical walls and partitions, supporting structure, sheet electrodes with insulating plates, rods and hydraulic cylinders, as well as pontoons, characterized in that, in order to increase work efficiency, the lower the edge of the walls and partitions of the chamber is equipped with supporting platforms with vertical clamps and electrical connectors isolated from the ground, and in the chamber wall adjacent to the front wall of the embankment, us channels sklapanami navyhodnyh holes for injection, the fixing solution