CN203188174U - Underwater riprap foundation bed and side-slope erosion prevention structure - Google Patents
Underwater riprap foundation bed and side-slope erosion prevention structure Download PDFInfo
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- CN203188174U CN203188174U CN2013202098791U CN201320209879U CN203188174U CN 203188174 U CN203188174 U CN 203188174U CN 2013202098791 U CN2013202098791 U CN 2013202098791U CN 201320209879 U CN201320209879 U CN 201320209879U CN 203188174 U CN203188174 U CN 203188174U
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- protection against
- against erosion
- side slope
- bedding
- erosion device
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Abstract
The utility model discloses an underwater riprap foundation bed and side-slope erosion prevention structure which comprises an erosion prevention device arranged on the surface of a foundation bed or the surface of a side slope, a fixing structure used for fixing the erosion prevention device on the foundation bed or the side slope, and a groove scooped along the lower end of the surface of the foundation bed or the lower end of the surface of the side slope. The lower end of the erosion prevention device is buried into the groove for fixation. The erosion prevention device is of a soil engineering structure which is formed by the fact that sand and stone fillers are poured into a shell made of soil engineering materials. According to the underwater riprap foundation bed and side-slope erosion prevention structure, the erosion prevention device is installed and fixed on the surface of a structure, the speed of water flow on the periphery is slowed down, and therefore the aim that the structure is prevented from being damaged by erosion is achieved. The processes related to the technology do not need match of large-scale machines, and construction is simple, easy and economical.
Description
Technical field
The utility model relates to a kind of underwater dumped rockfill bedding and side slope of preventing and suffers the technology of erosion damage.
Background technology
For underwater structures such as riprap foundation, mole and side slopes, erosion damage is one of its main mode of failure often.The main cause that causes this destruction is under external force, and works surface annex water velocity is too fast, has surpassed the priming speed of works component, causes works to be washed in a pan erosion, wash away by current.This external force comprises bad weathers such as tidal action, ship propeller stirring water body and typhoon.
At present, Chang Yong some comprise mold-bagged concrete, rise river bottom protection bank protection measures such as concrete components such as concrete grout siliconization, barrier board, boulder at the wash preventing method of riprap foundation, side slope etc.But these methods or material usage are big, or the difficulty of construction height, or owing to volume has reduced the basin degree of depth greatly.Therefore, integrate the advantage of the whole bag of tricks, study a kind of various environment and condition, simple protection against erosion technology of construction of being applicable to, seem highly significant.
The utility model content
Of the present utility model being by the simple technology of a cover reaches the purpose that prevents that bedding and side slope under water from are destroyed by current scour.
The utility model has adopted following technical scheme to reach above-mentioned utility model purpose:
Underwater dumped rockfill bedding and side slope protection against erosion structure, it comprises: be arranged at bedding or side slope surface the protection against erosion device, be used for the protection against erosion device be fixed in bedding or side slope fixed structure, dig the groove of establishing along bedding or lower end, side slope surface, the lower end of described protection against erosion device is embedded in the groove fixing, and described protection against erosion device is for being perfused with the earth structure of sand, stone filler in the housing that forms with geotechnological material.
The lower end of described protection against erosion device is piled up in to be fixed in the described groove with backfill piece stone.
When bedding or side slope soil structure are smooth jackstone structure, described protection against erosion device selects for use geotextile to make the housing that holds filler, described geotextile comprises upper and lower two-layer geotextiles and is sandwiched in the middle grid-like geotechnical fabric bag of one deck of two-layer geotextiles, the geotechnical fabric bag middle part arranges the grouting mouth, geotextiles and geotechnical fabric bag periphery are provided with slide fastener in order to engage, the cement bonded sand oar of perfusion in described geotechnological mould is confessed; When bedding or side slope were loftier jackstone structure, described protection against erosion device selected for use lattice guest gabion to fill in it as the housing of filler and with rubble.
As the fixed structure to described protection against erosion device, select mold-bagged concrete or mould bag mortar ballast for use, little timber is fixed or any one or two kinds of above combinations of anchor pole in fixing.
Present technique is installed on the works surface by placing protection against erosion, and adopts effective and efficient manner that device is fixed, and reduces surperficial flow rate of water flow, avoids exceeding the generation of works component initial velocity operating mode, thereby prevents that effectively works is subjected to erosion damage.The type of protection against erosion device is selected according near resource on-the-spot, for the abundant area of building stones, can select lattice guest gabion, otherwise can select geotextiles.Fixed form is selected according to the works type, and the soil property class formation can be used mold-bagged concrete grid ballast or little timber, and stone matter class formation can be with four jiaos of holdfasts or mold-bagged concrete grid ballast.
This technology easy construction, the protection against erosion device can be selected according to actual conditions, and production can be in prefabrication, install and fixingly finish by manpower, do not need big machinery to cooperate, be conducive to reduce cost, be adapted at applying in the newly-built or existing underwater structure engineering.
Description of drawings
Fig. 1 is process chart of the present utility model.
Fig. 2 is that the protection against erosion technology is applied to the riprap foundation schematic diagram.
Fig. 2 a is the enlarged drawing of the A among Fig. 2.
Fig. 3 is that the protection against erosion technology is applied to side slope schematic diagram under water.
Fig. 4 is geotextiles protection against erosion apparatus structure schematic diagram.
Fig. 5 is lattice guest gabion protection against erosion device.
Among the figure, terminal 1.1 grooves, 2 beddings of gabion net 1 gabion net 3 caissons 4 side slopes 5 geotextiles 6 surface layer geotextiles 6.1 geotechnical fabric bags 6.2 bottom geotextiles 6.3
The specific embodiment
Embodiment 1:
Measure the bedding size, tailor-made gabion net as shown in Figure 5, each grid does not have the top pattern for the end is arranged, and is of a size of 1m * 1m * 0.5m.
Gabion net 1 is positioned over bedding 3 surfaces, uses the iron wire bind between the adjacent mesh, form the protection against erosion device.
Make the tagger cylinder of the about 20cm of a diameter, length on the bank to the bedding identity distance from.Cylinder one end is fixed on the bank, and the other end is positioned over the gabion net top, is controlled mobile in water by the diver.
The person on shore is thrown into cylinder to about 10cm rubble, and rubble arrives gabion net by cylinder.After a grid was filled rubble, the diver moved cylinder to another grid, by that analogy.
After all grids are filled rubble, use whole wire gauze to cover each grid, and fix with the iron wire tighten.
Dig one groove 2 along the bedding lower end, this groove 2 is positioned at the protection against erosion device stream end that meets water, protection against erosion device end is imbedded in the bank, and material such as backfill piece stone, wash away protection against erosion device end to prevent water stream.
Embodiment 2:
Measuring structure thing size, as shown in Figure 4, processing surface layer and bottom geotextiles 6.1,6.3 and the grid-like geotechnical fabric bag 6.2 of one deck, mould bag 6.2 middle parts arrange grouting mouthful, and geotextiles and geotechnical fabric bag periphery are provided with slide fastener.
Place bottom geotextiles 6.3 on the bedding surface, and it is temporary fixed to adopt little timber to carry out.
Place grid-like geotechnical fabric bag 6.2, use slide fastener to be connected with bottom geotextiles 6.3.Open the grouting mouth to geotechnical fabric bag cement injection mortar, whenever fill one bag and namely cover this bag grouting mouth.
Treat the mould bag all fill full after, place surface layer geotextiles 6.1 on geotechnical fabric bag 6.2, and use slide fastener to connect, thereby form complete protection against erosion device.
Dig one groove 2 along the bedding lower end, this groove 2 is positioned at the protection against erosion device stream end that meets water, protection against erosion device end is imbedded in the bank, and material such as backfill piece stone, wash away protection against erosion device end to prevent water stream.
Certainly, also can as shown in Figure 3 the protection against erosion device be applied to side slope 5.
Claims (4)
1. underwater dumped rockfill bedding and side slope protection against erosion structure, it is characterized in that comprising: be arranged at bedding or side slope surface the protection against erosion device, be used for the protection against erosion device be fixed in bedding or side slope fixed structure, dig the groove of establishing along bedding or lower end, side slope surface, the lower end of described protection against erosion device is embedded in the groove fixing, and described protection against erosion device is for being perfused with the earth structure of sand, stone filler in the housing that forms with geotechnological material.
2. underwater dumped rockfill bedding according to claim 1 and side slope protection against erosion structure, it is characterized in that: the lower end of described protection against erosion device is embedded in the described groove, and it is fixing to use backfill piece clitter to build.
3. underwater dumped rockfill bedding according to claim 1 and side slope protection against erosion structure, it is characterized in that: when bedding or side slope soil structure are smooth jackstone structure, described protection against erosion device selects for use geotextile to make the housing that holds filler, described geotextile comprises upper and lower two-layer geotextiles and is sandwiched in the middle grid-like geotechnical fabric bag of one deck of two-layer geotextiles, the geotechnical fabric bag middle part arranges the grouting mouth, geotextiles and geotechnical fabric bag periphery are provided with slide fastener in order to engage, and are perfused with the cement bonded sand oar in the described geotechnical fabric bag; When bedding or side slope were loftier jackstone structure, described protection against erosion device selected for use lattice guest gabion to fill in it as the housing of filler and with rubble.
4. underwater dumped rockfill bedding according to claim 1 and side slope protection against erosion structure, it is characterized in that: as the fixed structure to described protection against erosion device, select mold-bagged concrete or mould bag mortar ballast for use, little timber is fixed or any one or two kinds of above combinations of anchor pole in fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202098791U CN203188174U (en) | 2013-04-23 | 2013-04-23 | Underwater riprap foundation bed and side-slope erosion prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202098791U CN203188174U (en) | 2013-04-23 | 2013-04-23 | Underwater riprap foundation bed and side-slope erosion prevention structure |
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| Publication Number | Publication Date |
|---|---|
| CN203188174U true CN203188174U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202098791U Expired - Fee Related CN203188174U (en) | 2013-04-23 | 2013-04-23 | Underwater riprap foundation bed and side-slope erosion prevention structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233444A (en) * | 2013-04-23 | 2013-08-07 | 中交四航工程研究院有限公司 | Underwater riprap foundation bed and side slope erosion resisting structure and construction method thereof |
| CN110924354B (en) * | 2019-11-26 | 2021-07-20 | 河海大学 | Harbor water exchange channel structure with wave blocking function |
-
2013
- 2013-04-23 CN CN2013202098791U patent/CN203188174U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233444A (en) * | 2013-04-23 | 2013-08-07 | 中交四航工程研究院有限公司 | Underwater riprap foundation bed and side slope erosion resisting structure and construction method thereof |
| CN103233444B (en) * | 2013-04-23 | 2015-09-16 | 中交四航工程研究院有限公司 | Underwater dumped rockfill bedding and side slope Anti-scouring structure and construction method thereof |
| CN110924354B (en) * | 2019-11-26 | 2021-07-20 | 河海大学 | Harbor water exchange channel structure with wave blocking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20170423 |