SU1583527A1 - Method and apparatus for for hydraulic deposition of an earth structure on water area of water body - Google Patents

Abstract

The invention relates to the field of hydraulic engineering. The purpose of the invention is to increase the efficiency of washing the soil structure in the water area of the reservoir by reducing the soil leakage beyond the design outline of the structure and increasing the density of laying the washed soil of the soil structure. In the implementation of the method of alluvium in the water area of the reservoir install floating equipment 12-14. The separating slurry line 1 is mounted and suspended on cables to floating equipment 12-14. By means of a flexible insert 2, a floating slurry line 1 is attached to the main slurry line 3. Pulpovod 1 is mounted from links 4-9 by means of hinges 10. A drainage hose 11 is attached to the end of the slurry line 1. The pulp is fed into the slurry line 1. Through windows in the lower part of each link, part of the pulp is poured into the previously washed layers 17-19, compresses the soil in them and is deposited on layer 19. new soil layer. A device for washing in a soil structure in a reservoir includes a diluting slurry line 1 made of hinged links with perforated walls. The pulpovod 1 is connected to the floating facilities installed in the water area of 12-14 tons gami with the possibility of changing the position of the pulpwater in the depth of the water area. Perforation windows are made in the lower half of the slurry link section. 2 sec. f-ly, 7 ill.

Description

The invention relates to construction and is intended for the construction of soil structures in water bodies.

The purpose of the invention is to increase the efficiency of washing the soil structure in the water area of the reservoir by reducing the soil leakage beyond the design outline of the structure and increasing the packing density of the washed soil.

Fig. 01 shows a device for carrying out the method in the process of washing the structure, side view; Fig. 2 shows a fragment of the alluvium of the fourth layer of the soil, the stage of the formation of a zone of maximum erosion of the previously washed soil by the pressure jet of the average pulp, a transverse section; fig. 3 - the same, the stage of deposition from the pulp of the first layer of soil D to the zone of maximum erosion by the pressure jet of the pulp, a transverse section; Fig. 4 - the same, the stage of deposition of the second layer of soil in the zone of marginal erosion, cross section; Fig. 3 shows the stage of stopping pulp outflow from a window and forming a fourth layer of washed ground, a transverse section; Fig. 6 shows the stage of installation of the spreading slurry line on the surface of the fourth layer of washed soil and the final formation of the fourth layer of washed layer of soil; Fig. 07 shows the sequence of advancement of the front of the fourth layer of soil along the separating slurry line during self-regulation of the slurry flow from the windows in its walls, side view.

The device for carrying out the method of washing the soil structure in the reservoir water area consists of a distributing slurry line 1 connected by a flexible insert 2 to the main slurry line 3. The distributing slurry line 1 is made of links 4-9, connected with hinges 10. The slurry line 1 ends with a drain hose 11 o The diverting slurry line is suspended on cables to floating vessels 12-14 with the possibility of changing the position of links 4-9 in the depth of the reservoir. Link 4-9 is made with windows 15, 16 in the lower part of their section.

We also accept the following notation: 17–20 — layers of washed ground; 21 - the bottom of the water area; 22 - water area of the reservoir; 23 - water surface in the water area; 24 - the first

a layer of soil deposition in the washout zone; 25 - the second layer of soil deposition in the erosion zone; 26-28 - position of the front of the soil alluvium; 29, 30 — ground deposition at windows 15 and 16.

In the implementation of the method of washing the soil structure in the water area at the beginning, the main slurry line 3 is laid on the ground from the quarry to the reservoir. The floating equipment 12-14 is placed in a linear position within the design outline of the alluvial structure. The position of the floating equipment 12-14 in the water area is fixed, for example, using koreas. The separating slurry line 1 is mounted from links 4-9 using hinges 10 of any known construction, for example the hemispherical Pulpovod 1 is laid on floating equipment 12-140 At the end of the diverting slurry line 1, install a water inlet hose 1I. Attach the slurry line 1 to the cables and move it from the deck of the floating equipment to the water area 22 of the reservoir. The slurry line 1 is lowered to the bottom of the 21st water area of the reservoir. 3 The pulpwaters 3 and 1 are slurry, for example, a dredger. The first layer of soil 17 is poured to the bottom of 2 K. 12-14 diverting slurry line to the top of the washed soil layer 17 is lifted . The wash layer 183 is raised to the surface of the layer 18 of the slurry line and the layer 19 of soil is washed in. The device in this position is depicted on

The process of washing the fourth layer of soil is shown in Fig. 2-60. Windows 15-16 in each link of the slurry line I are located in the lower part of the link section. After alluvium, the layers 19 reach the pulpit 1 and set at the level of the surface of the layer 19 (FIG. 2). Serve the pulp in the pulpwater. From the main slurry line 3, the pulp enters the slurry line 1. It reaches the window in the wall of the link. Part of the pulp is poured out of the window in the form of pressure jets (in Fig. 2, the streams from the window are shown by the arrow). moves to the sides and upwards. In layer 19, an ETS soil erosion zone is formed. The soil washed out of layer 19 and coming along with the pulp, which participated in the erosion, is deposited in zones ABC and EFK, and the water from the pulp goes into the water area 22 of the reservoir.

After some rather short time, the erosion zone of the CET reaches its size limit. With further pulp flow from the window 10 into the CRE zone, the deposition of soil coming in with the pulp begins. A layer of soil 24 is deposited in both the ETS and ABC and EFK zones (Fig. 3). Layer 25 is deposited on layer 24. "A layer of washed soil fills the entire erosion zone of ETS, under the window 15, large particles of soil are deposited with a layer of 29o. Window 15 stops working to produce pulp. It is as if zagomonirovano with deposited soil.

The pulp flow to the pulpway 1 is stopped. The pulpovod 1 with the help of floating equipment cables 12-14 rises up by the thickness of the washed layer 20, the fourth one. The washed soil of layers 24, 25 flows into the erosion zone, fills the volume that the pulpway 1 occupied in the zone Cd Layer 20 is leveled ().

The pulp streams flowing out of the windows 15, 16 (Fig. 02-4) not only erode and deposit the soil, but impulse compaction of the previously washed layers 17-19 as well as the washed layers 24-25. Under normal alluvium, the soil washed under water is laid in an extremely loose state. By directing the pressure streams of the pulp into the previously washed soil layers, the soil is compacted to an extremely dense state. Dense condition of the soil provides a high stability of the structure during the washing process, and also shortens the self-consolidation period and sediment in the washed structure.

It was considered how the layer of soil 20 was washed in one of the sections of the washed structure, FIG. 7 shows the alluvium layer 20 along the length of the slurry line 1. When the slurry flows through the slurry line, the soil is distributed in the slurry through the slurry section. The bulk of the soil moves in the lower half of the slurry section: at the bottom - larger and heavier particles, above this layer - smaller particles and size.

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In the upper half of the slurry section, water mainly flows with small and tiny soil particles. Since the perforation windows are located in the lower section of the separating slurry line 1, the ground flows from the perforation windows with the pulp, primarily in the form of large and heavy particles. The link 6 (Fig. 7) pours a part of the pulp, saturated with large and heavy soil particles. The pulp jets, as shown in Figs. 2-4, first erode the soil of the previously washed layer 19, then the soil is deposited from the pulp, fill the erosion zone, wash out the slurry line 1. Window 19 closes 19 coarse particles (Fig. 05 and 7) o Evens pulp 6 flows past window 15 and flows out of window 16. Soil erosion occurs and sedimentation occurs (the process is shown in FIG. 2-4). Window 16 of link 6 is plugged. The pulp flows into link 7 and part of it pours out of the window 15 of link 7, but under layer 6 and a layer of soil 20 is washed around it.

When a part of the pulp stream flows out of the windows 15 of Even 6, the rest of the stream of pulp flows along the links 7, 8, and further a portion of the stream flows out of the windows of these links. Moreover, the farther from the link 6 the window is into the links x 7 and 8, the less soil is poured through it together with the pulp. Self-regulation of pulp flow through the windows occurs. First, this flow through the maximum window, in subsequent windows gradually decreases by distance from the window in question. Then the flow through the window decreases and stops completely. Such a moment occurs when the link is closed with soil. Maximum consumption at this moment takes place in the window adjacent to the flow. Above link 6, the front of the washed ground occupies the position 26 “Then the link of the link 7 pro5

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tiv window 15p then - against window 16 with the formation of the front of 27

ground. After that, a front 28 is formed above the link 8 of the slurry line 1. The soil-free pulp is poured out through the discharge hose 11 into the waterway.

After the layer 20 is washed over the entire length of the distributing slurry line 1, t „e„ along the entire length of the washed structure, the slurry line 1 is raised to the level by means of cables of floating equipment 12-14.

the upper surface of layer 20 and the layer of soil is washed on layer 20, precisely as the layer 20 was washed on layer 19.

Claims (2)

Alluviation of a facility across the width of a facility is made from several strands of diluting slurry lines 1, laid in parallel. i Formula of invention 1 o The method of washing the soil structure in the water area of the reservoir, including laying the distributing slurry line in the water area, discharging pulp into the water area, dropping the soil from the slurry into sediment К deposition of soil in the design outlines of the soil structure, characterized in that, in order to increase the efficiency of the soil wash construction in the water area by reducing the leakage of soil beyond the design outline of the structure and increasing the density of the washed soil, alluvium in the water area in the water area is produced in layers, acina from the bottom of the reservoir 0 25 five 0 with the advancement of the front of the wash layer from the beginning of the diluting slurry line to its end, and the discharge of the slurry from the diverting slurry line is carried out into the washed soil layer in the form of pressure jets. 2. Device for washing the soil structure in the water area of the reservoir, including connecting with the main pulpwater and distributing slurry line in the water area of the water body fixed in the water area, characterized in that, in order to increase the effectiveness of the soil washing of the soil structure in the water area of the water body by reducing soil leakage design contour of the structure and increase the density of laying washed soil, spreading slurry line is made of pivotally connected links with perforated walls and attachment to set in the waters of floating means connecting rods with the possibility of changing its position in the depth waters, wherein perforations are made in the lower box half link section 17  $ g one/ Ul OD (L Ln T ////// /// //// // /// /// ////// /// /// Fie.6 $ 1 ///////// / 7Г /// 7 // ///////// /// //// // //// //// / 7 / FIG. 7 28 28