CN220223950U - Transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging sediment - Google Patents
Transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging sediment Download PDFInfo
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- CN220223950U CN220223950U CN202320895605.6U CN202320895605U CN220223950U CN 220223950 U CN220223950 U CN 220223950U CN 202320895605 U CN202320895605 U CN 202320895605U CN 220223950 U CN220223950 U CN 220223950U
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- 238000007596 consolidation process Methods 0.000 title claims abstract description 23
- 238000001035 drying Methods 0.000 title claims abstract description 19
- 230000018044 dehydration Effects 0.000 title claims abstract description 17
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 17
- 239000013049 sediment Substances 0.000 title claims description 14
- 238000005192 partition Methods 0.000 claims abstract description 29
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000010802 sludge Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010792 warming Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 238000007664 blowing Methods 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 8
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 13
- 239000004746 geotextile Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a transverse drainage consolidation device for dehydration and drying treatment of dredging substrate sludge of rivers, lakes and reservoirs, which comprises a drainage grid; the drainage grid comprises two edge transverse grid bars and a plurality of longitudinal grid bars connected with the two edge transverse grid bars; a middle transverse grid strip is arranged between the two edge transverse grid strips; the cross section shapes of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips are consistent, each partition plate comprises a partition plate, vertical partition strips are symmetrically arranged on the upper side and the lower side of each partition plate respectively, a through water passing channel is formed between every two adjacent partition strips, and geotechnical cloth is wrapped on the edge transverse grating strips, the middle transverse grating strips and the longitudinal grating strips. In summary, in the process of blowing and filling the pretreated dredging bottom mud, the drainage grids are synchronously embedded, layered and paved in the mud storage pool, the drainage grids are paved after the blowing and filling is completed, the drainage consolidation construction is performed in situ, and meanwhile, the heating belt is added on the drainage grids, so that the drainage efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of dredging sediment treatment, and particularly relates to a transverse drainage consolidation device for dewatering and drying treatment of dredging sediment of rivers, lakes and reservoirs.
Background
The river, lake and reservoir dredging sediment has the characteristics of high water content, high compressibility, low shear strength, poor permeability and no bearing capacity basically, so that dehydration and drying treatment are needed before engineering construction or recycling. In the deep soil dehydration and drying construction, alternate plastic drainage plates are required to be arranged in the soil, and the drainage plates are subjected to vacuum negative pressure, so that the moisture in the sludge can be rapidly discharged, the rapid solidification of the pretreated soil layer is realized, and the purpose of dehydration and drying is achieved.
However, the inventor of the present application found that at least the following technical problems exist in the above prior art:
1. at present, an important procedure of vacuum preloading sediment treatment is to vertically print a drain board on the surface of the river and lake dredging sediment, the operation process consumes a great deal of time and affects the engineering progress, the bearing capacity of the surface of the dredging sediment is low, mechanical equipment cannot be constructed, and the construction mode of paving bamboo grids on the surface of the sediment and manually inserting plates is generally adopted at present, so that the construction method has a great safety risk.
2. The construction process of the ectopic treatment of the dredging sediment does not meet the current ecological environment protection requirement, and the dehydration drying equipment and the method in the migration process are needed, so that the engineering cost can be greatly reduced, and the secondary pollution is reduced.
3. The construction period of vacuum preloading treatment in the land mud storage pool is too long, generally 4-6 months, and the construction period requirements of many projects are difficult to meet.
Therefore, based on the technical problems, on the basis of the conventional vacuum preloading technology, the transverse drainage consolidation device for the dehydration and drying treatment of the dredged sediment of the rivers, the lakes and the reservoirs is provided, the problems of large energy consumption, long time consumption and easiness in secondary pollution in the ectopic dehydration and drying treatment of the land are solved, the treatment period of the dredged sediment can be greatly shortened, the transportation cost of the ectopic treatment of the dredged soil is reduced, and the dehydration and consolidation effect of the deep soil is enhanced.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge. In the process of blowing and filling the pretreated dredging bottom mud, the drainage grids are synchronously pre-buried, the drainage grids are layered and paved in the mud storage pool, the drainage grids are paved after the blowing and filling is finished, and the drainage consolidation construction is carried out in situ.
The utility model is realized in such a way that a transverse drainage consolidation device for dehydration and drying treatment of the dredging substrate sludge of rivers, lakes and reservoirs comprises a drainage grid; the drainage grid is characterized by comprising two edge transverse grid bars and a plurality of longitudinal grid bars connected with the two edge transverse grid bars, wherein the plurality of longitudinal grid bars are arranged at equal intervals; a middle transverse grating strip is arranged between the two edge transverse grating strips, and the longitudinal grating strips and the transverse grating strips are crossed in a cross structure; the cross section shapes of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips are consistent, each partition plate comprises a partition plate, vertical partition strips are symmetrically arranged on the upper side and the lower side of each partition plate respectively, a through water passing channel is formed between every two adjacent partition strips, and geotechnical cloth is wrapped on the edge transverse grating strips, the middle transverse grating strips and the longitudinal grating strips.
Preferably, the overall height of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips is not more than 0.8mm.
Preferably, the height of the partition plate is 0.2mm, and the height of the partition strips on the upper side and the lower side of the partition plate is 0.3mm.
Preferably, a heating belt is bound in the geotextile along the longitudinal direction of the drainage grating.
Preferably, the heating belt is positioned on the middle transverse grid strip, and the middle transverse grid strip and the longitudinal grid strip are fixedly connected at the crisscross part through binding belts.
Preferably, the interval between adjacent warming zones is 3.0-3.5 m.
The utility model has the advantages and effects that:
1. the utility model has the advantages that the drainage plates are synchronously arranged during the hydraulic filling of the river and lake dredging bottom mud, the construction steps for arranging the vertical drainage plates are reduced, the drainage plates are synchronously laid after the hydraulic filling is finished, and the construction efficiency is improved.
2. The utility model can exhaust air around the transverse drainage grid, and improves the vacuum degree conduction efficiency, thereby improving the consolidation effect.
3. The transverse drainage grid adopted in the utility model has drainage channels with various paths, is more beneficial to keeping the drainage and air channels smooth, and even if the phenomena of breakage, deformation and pipe blockage are generated, the vacuum conduction efficiency is not affected.
4. According to the utility model, the soil body is heated in the air extraction and drainage process by arranging the increase Wen Tiaodai in the same direction as the transverse drainage grating, so that the construction time is shortened, and the treatment effect is improved.
5. According to the utility model, the air exhaust device can be arranged at any position around the mud storage pool, and the field arrangement mode is flexibly carried out, so that the safety and environmental protection requirements of downtown areas are met.
Drawings
FIG. 1 is a top view of a drainage grid of the present utility model;
FIG. 2 is a partial perspective view of the drainage grid of the present utility model;
FIG. 3 is a schematic view of a thermal zone ligating structure of the present utility model;
fig. 4 is a state diagram of the use of the present utility model.
In the figure, 1, a drainage grid; 1-1, a drainage grid; 1-2, longitudinal grid strips; 1-3, transverse grid strips; 1-4, vertical dividing strips; 1-5, a water passing channel; 2. geotextile; 3. a quick seal joint; 4. a vertical drain pipe; 5. a warming zone; 6. a binding belt.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 4, a transverse drainage consolidation device for dewatering and drying treatment of dredging substrate sludge of a river, a lake and a reservoir comprises a drainage grid 1; the drainage grid comprises two edge transverse grid bars 1-1 and a plurality of longitudinal grid bars 1-2 connected with the two edge transverse grid bars, and the longitudinal grid bars are arranged at equal intervals; the middle transverse grid bars 1-3 are arranged between the two edge transverse grid bars, and the longitudinal grid bars and the transverse grid bars are crossed in a cross structure; the cross section shapes of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips are consistent, each partition plate comprises a partition plate, vertical partition strips 1-4 are symmetrically arranged on the upper side and the lower side of each partition plate respectively, through water passing channels 1-5 are formed between adjacent partition strips, and geotechnical cloth 2 is wrapped on the edge transverse grating strips, the middle transverse grating strips and the longitudinal grating strips.
Preferably, the overall height of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips is not more than 0.8mm, so that a plurality of communicated cavities are established among geotechnical cloth, and drainage channels are established in soil by utilizing the communicated cavities, so that the geotechnical cloth is prevented from blocking the drainage channels under negative pressure.
Preferably, the height of the partition plate is 0.2mm, and the height of the partition strips on the upper side and the lower side of the partition plate is 0.3mm.
Preferably, a plurality of warming belts 5 are bound on the outer side of the geotextile along the longitudinal direction of the drainage grating.
Preferably, the heating belt is positioned on the middle transverse grid strip, and the middle transverse grid strip and the longitudinal grid strip are fixedly connected at the crisscross part through binding belts.
Preferably, the interval between adjacent warming zones is 3.0-3.5 mm, and the interval between the warming zones is preferably 3.2m.
The technical scheme can be adopted as follows:
the drainage grid 1 is made of hard plastic, and the beneficial aspect of the arrangement is that when the air is pumped, the situation that the drainage channel is not bent or blocked is ensured in the process that the soil body deforms greatly.
The drainage grid 1 is square grid-shaped, the width is 0.1m, and the side length of the square grid is 0.8-1.2 m.
The geotechnical cloth 2 is wrapped on the outer side of the drainage grid 1, negative pressure is generated in the gap of the drainage grid 1 in the air extraction process, water in dredged sediment can enter the gap of the drainage grid 1 through the geotechnical cloth 2, and then water vapor is pumped out of the soil body through the vertical connecting pipe, so that the effect of drainage consolidation is achieved.
The sealing mode after the combination of the drainage grid 1 and the geotechnical cloth 2 is as follows: the drainage grid 1 drainage side is connected through being connecting pipe 4, and the multilayer drainage grid 1 can be vertically connected to vertical drain pipe 4.
The non-draining side of the drainage grid 1 is sealed by a quick-seal fitting 3.
The warming belt 5 is a flexible waterproof belt which is heated by electric heat after being electrified.
After the drainage grid 1 is combined with the geotextile 2, a warming strip 5 is arranged on every other two squares in the plane direction. The beneficial aspects of the arrangement are that in the vacuum preloading air extraction process, the temperature of surrounding soil is increased by the temperature increasing strip 5, the viscous force is reduced, the permeability coefficient is increased, the permeability is enhanced, and the drainage consolidation under the negative pressure condition is facilitated.
The mode of connecting the additional Wen Tiaodai 5 with the drainage grid is that the cross-shaped binding and fixing are carried out at the cross-shaped crossing position of the drainage grid through the binding belt 6. The beneficial aspect of the arrangement is that after the drainage grid can be bent and deformed in the soil body consolidation process, the heating belt 5 can not be broken or leaked in the deformation process.
The concrete construction method comprises the following steps:
step one: combining the drainage grid with geotextile, and manufacturing the drainage grid with the proper size according to the shape and the size of the mud storage pool; the warming belt carries out cross binding on the cross intersection of the drainage grid through a binding belt; one drainage side is connected with a vertical drainage pipe, and the other non-drainage side is sealed by using a quick sealing joint;
step two: a layer of transverse drainage structure is paved at the bottom of the mud storage pool, in the process of mud blowing operation, a layer of transverse drainage structure (1 layer of geotextile+1 layer of combined drainage grid+1 layer of geotextile) is paved again after each time 1.5-2 m is blown out, until the sealing film is paved after the blowing out is carried out to the top elevation of the cofferdam of the mud storage pool;
step three: sealing the periphery of the sealing film, exhausting air through the vertical drain pipe, and heating soil body through a heating belt in the exhausting process, so that the soil body achieves the effect of drainage and consolidation.
In summary, in the process of blowing and filling the pretreated dredging bottom mud, the drainage grids are synchronously embedded, layered and paved in the mud storage pool, the drainage grids are paved after the blowing and filling is completed, the drainage consolidation construction is performed in situ, and meanwhile, the heating belt is added on the drainage grids, so that the drainage efficiency is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. A transverse drainage consolidation device for dewatering and drying treatment of dredging sediment of rivers, lakes and reservoirs comprises a drainage grid; the drainage grid is characterized by comprising two edge transverse grid bars and a plurality of longitudinal grid bars connected with the two edge transverse grid bars, wherein the plurality of longitudinal grid bars are arranged at equal intervals; a middle transverse grating strip is arranged between the two edge transverse grating strips, and the longitudinal grating strips and the transverse grating strips are crossed in a cross structure; the cross section shapes of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips are consistent, each partition plate comprises a partition plate, vertical partition strips are symmetrically arranged on the upper side and the lower side of each partition plate respectively, a through water passing channel is formed between every two adjacent partition strips, and geotechnical cloth is wrapped on the edge transverse grating strips, the middle transverse grating strips and the longitudinal grating strips.
2. The transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge according to claim 1, which is characterized in that: the overall height of the edge transverse grating strips, the longitudinal grating strips and the middle transverse grating strips is not more than 0.8mm.
3. The transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge according to claim 1, which is characterized in that: the height of the partition plate is 0.2mm, and the height of the partition strips on the upper side and the lower side of the partition plate is 0.3mm.
4. The transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge according to claim 1, which is characterized in that: a plurality of warming belts are bound on the inner side of the geotechnical cloth along the longitudinal direction of the drainage grating.
5. The transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge according to claim 1, which is characterized in that: the heating belt is positioned on the middle transverse grid strips and fixedly connected with the cross parts of the longitudinal grid strips through binding belts.
6. The transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging substrate sludge according to claim 1, which is characterized in that: the interval between adjacent heating zones is 3.0-3.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895605.6U CN220223950U (en) | 2023-04-20 | 2023-04-20 | Transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging sediment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895605.6U CN220223950U (en) | 2023-04-20 | 2023-04-20 | Transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging sediment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220223950U true CN220223950U (en) | 2023-12-22 |
Family
ID=89186198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320895605.6U Active CN220223950U (en) | 2023-04-20 | 2023-04-20 | Transverse drainage consolidation device for dehydration and drying treatment of river, lake and reservoir dredging sediment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220223950U (en) |
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2023
- 2023-04-20 CN CN202320895605.6U patent/CN220223950U/en active Active
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