CN212582577U - Ballast reverse filtering body structure - Google Patents
Ballast reverse filtering body structure Download PDFInfo
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- CN212582577U CN212582577U CN202020126052.4U CN202020126052U CN212582577U CN 212582577 U CN212582577 U CN 212582577U CN 202020126052 U CN202020126052 U CN 202020126052U CN 212582577 U CN212582577 U CN 212582577U
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- reverse filter
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Abstract
The utility model provides a ballast is anti-strains and is arranged body structure, including geotechnological cloth top layer, geotechnological cloth bottom, middle counter weight layer, geotechnological cloth top layer, geotechnological cloth bottom, middle counter weight layer are fixed through fixed fastener. The utility model has the advantages that: the method has good integrity and reverse filtration characteristics, and solves the problems of poor laying stability, serious loss and incapability of ensuring construction quality of the traditional underwater graded broken stone reverse filtration layer; meanwhile, the construction defects of poor combination of the traditional inverted filter layer of the mattress settling body and a ballast, poor integrity, large lap joint amount, tearing and shrinking of the mattress and the like in the water transport engineering can be effectively overcome.
Description
Technical Field
The utility model belongs to the technical field of the water conservancy project, a ballast is anti-strains and is arranged body structure and laying method thereof is related to. The composite ballast reverse filtering structure can be applied to water transport engineering structures such as underwater isolation, reverse filtering, beach protection, bank protection lining and the like, and is a composite ballast reverse filtering structure with good integrity and stability.
Background
The situation that a dry land construction environment cannot be built and a reverse filtering structure is needed frequently occurs in water transportation engineering, an underwater broken stone reverse filtering layer is directly paved in the traditional scheme, the stability is poor, the loss is serious, and the construction quality cannot be guaranteed; the geotextile ballast process generally adopts concrete interlocking blocks, soft rows and the like for construction, and the laying effect cannot be ensured due to poor combination of geotextile and ballast, poor integrity, large lap joint amount, tearing, shrinkage and other construction defects. Therefore, how to solve the problem of construction of the underwater reverse filtering structure is very important in the water transportation engineering.
Disclosure of Invention
In order to solve the problems, the utility model aims at providing a ballast anti-drainage body structure that wholeness, stability are good is applied to among the water transport engineering structures such as keep apart under water, anti-straining, beach protection, revetment lining cutting.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a body structure is strained to ballast is turned over, includes geotechnological cloth top layer, geotechnological cloth bottom, middle counter weight layer, geotechnological cloth top layer, geotechnological cloth bottom, middle counter weight layer are fixed through fixed fastener.
The middle counterweight layer is filled with sand gravel and is provided with a double-twisted steel wire mesh reinforced three-dimensional geotechnical mesh pad.
The three-dimensional reinforced net pad is a three-dimensional structure reinforced body formed by compounding metal reinforcement plated with 5% of zinc-aluminum alloy and rare earth elements and covered with a high-wear-resistant organic coating and thermally bonding filamentous polypropylene.
The top layer of the geotextile is a single-layer geotextile, and the surface of the geotextile is roughened.
The geotextile bottom layer is single-layer geotextile, geomembrane or composite geotextile material.
The top geotextile layer and the bottom geotextile layer are provided with skirt edges and used for overlapping construction of every two adjacent ballast reverse filter rows under water.
Both sides of the ballast reverse filter drainage body are provided with lifting holes and lifting ropes penetrating through the lifting holes, and the bottom surface of the ballast reverse filter drainage body is provided with reinforcing ribs.
The utility model has the advantages that:
a. the structure is not pulled and damaged during manufacturing, winding and laying;
b. when the structure is laid, the whole structure can resist the wave buoyancy and keep stable, and the edge of the structure can keep stable under the action of water flow without lifting;
c. the structure can bear the impact force of the riprap above the filter bed layer when being used as the reverse filter bed layer;
d. the filter has better reverse filtration performance, and can prevent the scouring, erosion and migration of the soil particles of the foundation soil;
e. the physical and chemical properties can adapt to the unique engineering environment, and the structure has better durability.
In order to realize different engineering purposes, the polypropylene geotextile of the upper layer and the lower layer is replaced by other geotextile composite materials, for example, the polypropylene geotextile of the surface layer is compounded with the three-dimensional geotextile mat to realize the functions of thickening and silt promotion, and the polypropylene geotextile of the bottom is replaced by two cloths and one film to realize the function of seepage prevention. The method is suitable for efficient construction of underwater isolation, reverse filtration, seepage prevention and roughening structures, and has popularization and application values.
Drawings
FIG. 1 is a schematic plan view of the structure of the ballast reverse filter bank of the present invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
fig. 3a is a schematic view of an application scene of the ballast reverse filter structure artificial beach engineering of the present invention;
fig. 3b is a schematic view of an application scene of a ballast reverse filtering drainage body structure river bank slope or river bed reverse filtering structure of the present invention;
FIG. 4a is a simulation diagram of the cyclic load under the finite element wave current condition of the present invention;
FIG. 4b is a simulation diagram of the present invention showing the tendency of the cyclic load to stabilize under the finite element wave current conditions;
FIG. 5a is a schematic view of the construction of the land ballast inverted filter structure of the present invention;
FIG. 5b is a schematic view of the construction of the horizontal hoisting of the ballast reverse filter bank structure of the water floating vessel of the present invention;
FIG. 6 is a construction diagram of the construction of the utility model for setting the hoisting point by the horizontal hoisting method;
FIG. 7 is a schematic view of the reinforcing rib arrangement of the horizontal hanging method of the present invention;
FIG. 8 is a schematic view of the rolling installation construction of the ballast reverse filter bank structure of the present invention;
fig. 9 is a schematic diagram of the construction of the lifting appliance by the roll-on-roll-off method of the present invention;
FIG. 10 is a side view of FIG. 9;
fig. 11 is a schematic view of the construction of the buoy in the roll-on-roll-off method of the present invention.
In the figure:
1. top layer and skirt edge polypropylene geotextile 2 and bottom layer polypropylene geotextile
3. Sand gravel 4 and metal reinforced three-dimensional geonet pad
5. Fixing fastener 6, skirt
7. Lifting rope 8 and lifting hole
9. Reinforcing rib 10, ballast reverse filter row
11. Processed steel pipe 12, steel pipe
13. Steel wire rope 14 and truss
15. Limiting hole 16 and float bowl
Detailed Description
The structure of the ballast reverse filter bank and the laying method thereof according to the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the ballast reversed filter drainage body structure comprises a geotextile top layer 1, a geotextile bottom layer 2 and a middle weight layer 3, wherein the geotextile top layer 1, the geotextile bottom layer 2 and the middle weight layer 3 are fixed by a fixing fastener 5, the middle weight layer 3 is filled with sand gravel and provided with a double-twisted steel wire mesh reinforced three-dimensional geotextile mat 4, and the three-dimensional reinforced geotextile mat 4 is a three-dimensional structure reinforced body formed by compounding metal ribs plated with 5% of zinc-aluminum alloy and rare earth elements and covered with high-wear-resistant organic coatings and thermally bonded with filamentous polypropylene.
The geotextile top layer 1 can be single-layer geotextile, the surface of the geotextile top layer is subjected to roughening treatment, and the geotextile bottom layer 2 can be single-layer geotextile, and can also be a geomembrane or a composite geotextile material according to the requirement.
Fig. 3a is a schematic view of an application scene of the artificial beach engineering with a ballast reverse filter drainage body structure of the present invention, wherein the ballast reverse filter drainage body is located on a foundation and is back-filled with beach sand with a depth of 2 meters; figure 3b shows that the utility model discloses a ballast is anti-strains body structure river course bank slope or the anti scene sketch map of using of straining structure of riverbed, and the ballast is anti-strains the body and is located on the ground basis, has the stone ballast of throwing of 2 meters depths above.
The ballast reverse filter drainage bodies can be a plurality of, and every two adjacent ballast reverse filter drainage bodies are overlapped through skirt edges 6 arranged on the geotextile top layer 1 and the geotextile bottom layer 2 under water according to construction requirements.
In order to facilitate moving to underwater construction, lifting holes 8 and lifting ropes 7 penetrating through the lifting holes 8 are formed in the two sides of the ballast reverse filter drainage body, and reinforcing ribs 9 are arranged on the bottom surface of the ballast reverse filter drainage body.
Fig. 4a shows that the utility model discloses a cyclic load simulated diagram under finite element wave ocean current condition, hypothesis relative displacement 20cm compares with it, and fig. 4b shows that the utility model discloses a cyclic load tends to stabilize the simulated diagram under finite element wave ocean current condition.
The structure can be constructed by adopting a horizontal hoisting method and a rolling method, and construction modes can be flexibly selected for construction according to site construction conditions.
The flat hanging method comprises the following steps: construction preparation → laying of the inverted filter row → fixing of the inverted filter row to the hanger → hoisting placement → positioning laying → next laying.
The roll-on-roll-off method comprises the following steps: construction preparation → combination of the inverted filter row body and the lifting appliance → equipment positioning → mechanical rolling and laying → next laying.
The horizontal hanging method comprises the following specific steps: the frame structure is lifted by using hoisting equipment such as an automobile crane, the frame is an independent lifting frame, the frame structure can be made of channel steel, aluminum alloy and the like according to construction conditions, and the bearing capacity requirement can be met. The ballast reverse filter drainage body is connected through a rope or a steel wire, and a hanging point or a reinforcing rib can be arranged on the ballast reverse filter drainage body as a connecting point according to the construction condition. Constructing on land, namely, hoisting to a specified position, positioning and placing and lapping by manual cooperation to finish the laying work; and (4) underwater construction, wherein a ship is used as a platform, and the ship is lifted to a specified position and then is positioned, placed and lapped by a diver in a matched mode, so that laying work is completed.
FIG. 5a is a schematic view of the construction of the land ballast inverted filter structure of the present invention; fig. 5b is the construction schematic diagram of the horizontal hanging structure of the ballast reverse filter row body of the water floating vessel of the utility model.
As shown in fig. 6, hanging holes 8 and hanging ropes 7 passing through the hanging holes 8 are provided on both sides of the ballast reverse filter row body. The positions, the intervals, the quantity and the like of the lifting points are determined through tests according to the construction site and the size of the ballast reverse filter rows, so that the requirements of stable structure and convenient construction are met; the lifting hole 8 is manufactured mechanically or manually in a processing plant, but the position of the lifting hole is required to be ensured not to be torn, the structure quality is not influenced, and necessary protection devices such as a ferrule and the like can be added at the lifting hole 8 when necessary; the lifting rope 7 can be made of plastic, nylon, steel wire ropes and other materials according to the field requirements, the bearing capacity requirement is met, and the ballast reverse filter drainage is not damaged. And after the lifting hole 8 and the lifting rope 7 are arranged, the lifting rope 7 is connected with the frame structure for lifting and laying, and the frame structure is flexibly determined according to the construction site conditions and meets the requirement of lifting capacity.
As shown in fig. 7, the construction method for arranging the reinforcing rib by the horizontal hanging method comprises the following steps: reinforcing ribs 9 are arranged on the bottom surface of the ballast inverted filter body. The reinforcing ribs 9 penetrate through the bottom surfaces of the ballast reverse filter rows longitudinally and transversely and are respectively arranged as required, and the number and the spacing of the reinforcing ribs are determined according to tests, so that the requirements of stable structure and construction convenience are met; stiffening rib 9 adopts geotechnological reinforced material preparation to form, satisfy the bearing capacity requirement can, other substitute material all belong to the utility model discloses protection scope. After the reinforcing rib 9 is arranged, the reinforcing rib 9 is connected with the frame structure for hoisting and laying, the frame structure is flexibly determined according to the construction site conditions, and the requirement of hoisting capacity is met.
The specific rolling method comprises the following steps: the unit row body of the utility model is rolled into a buoy by a large ship in a deep water area, is sunk into water and is close to a river/seabed by matching with a positioning system, and when reaching the designed depth, the unit row body is unfolded to finish the laying work; in a shallow water area, the unit row bodies are rolled into the floating barrels by using a simple floating pontoon or a small ship and the like, and divers are matched for positioning and lapping to finish the laying work; on the land, hoisting equipment such as a truck crane and the like can be adopted to wind the unit row body of the invention into the steel pipe, and the steel pipe is hoisted by a hoisting tool and is positioned and lapped by manual cooperation to finish the laying work.
As shown in fig. 8 to 11, the roll-on-roll method hanger construction method: the ballast reverse filter bank 10 is processed and coiled on a processing steel pipe 11 in a factory, and is transported to a construction site after the processing is finished. The on-site hoisting sling consists of a steel pipe 12, a steel wire rope 13, a truss 14 and a limiting hole 15. Specifically, the inner diameter of the steel pipe 12 is smaller than that of a processed steel pipe, the specific size is determined according to the field requirement, if the steel pipe is required to be laid flexibly, the diameter difference is larger, and otherwise, the diameter difference is smaller; one side of the bottom of the steel wire rope 13 is fixed on the steel pipe 12, the other side with the limiting hole 15 is set to be in a movable state, and the tops of the steel wire rope and the limiting hole are fixed on the truss 14; the truss 14 can be made of channel steel, aluminum alloy and the like, and the bearing capacity requirement can be met; the number of the limiting holes 15 can be properly increased, so that the steel wire rope on the side can not obviously slide after the limiting devices such as steel bars are inserted, and the structure is stable. During construction, one side of the steel pipe 12 with the limiting hole 15 is inserted into the steel pipe 11, then the steel wire rope 13 is sleeved on the steel pipe, the steel bar is inserted into the limiting hole 15, one side of the steel pipe is fixed, the whole structure is stable, the truss 14 is lifted later, the ballast reverse filter bank 10 is lifted to a specified position, then the reverse filter bank outer package is manually opened, after the ballast reverse filter bank is lifted, the ballast reverse filter bank body is naturally loosened, and the manual matching positioning and laying are carried out.
The roller mounting method of buoy construction method: the ballast reverse filter bank 10 is processed and coiled on a processing steel pipe 11 in a factory, and is transported to a construction site after the processing is finished. The steel pipe 11 is penetrated in the buoy 16, then the two ends of the buoy are fixed on a simple buoy or a large ship positioning system, and the buoy is transported to a designated area by a ship to be laid.
The embodiments described above are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Claims (6)
1. A ballast reverse filter bank structure is characterized in that: the geotextile bottom layer fixing device comprises a geotextile top layer (1), a geotextile bottom layer (2) and a middle weight layer (3), wherein the geotextile top layer (1), the geotextile bottom layer (2) and the middle weight layer (3) are fixed through fixing fasteners (5).
2. The structure of the ballast reverse filter bank according to claim 1, wherein: the middle counterweight layer (3) is filled with sand gravel and is provided with a metal reinforced three-dimensional geonet pad (4).
3. The structure of the ballast reverse filter bank according to claim 1, wherein: the geotextile top layer (1) is a single-layer geotextile, and the surface of the geotextile top layer is subjected to roughening treatment.
4. The structure of the ballast reverse filter bank according to claim 1, wherein: the geotextile bottom layer (2) is a single-layer geotextile, a geomembrane or a composite geotextile material.
5. The structure of the ballast reverse filter bank according to claim 1, wherein: the geotextile top layer (1) and the geotextile bottom layer (2) are provided with skirt edges (6) for the overlapping construction of every two adjacent ballast reverse filter rows under water.
6. The structure of the ballast reverse filter bank according to claim 1, wherein: both sides of the ballast reverse filter drainage body are provided with lifting holes (8) and lifting ropes (7) penetrating through the lifting holes (8), and the bottom surface of the ballast reverse filter drainage body is provided with reinforcing ribs (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020126052.4U CN212582577U (en) | 2020-01-20 | 2020-01-20 | Ballast reverse filtering body structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020126052.4U CN212582577U (en) | 2020-01-20 | 2020-01-20 | Ballast reverse filtering body structure |
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| CN212582577U true CN212582577U (en) | 2021-02-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236141A (en) * | 2020-01-20 | 2020-06-05 | 中交第一航务工程勘察设计院有限公司 | Ballast reverse filtering body structure and laying method thereof |
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- 2020-01-20 CN CN202020126052.4U patent/CN212582577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236141A (en) * | 2020-01-20 | 2020-06-05 | 中交第一航务工程勘察设计院有限公司 | Ballast reverse filtering body structure and laying method thereof |
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