CN211113446U - Side slope protection structure capable of being constructed underwater - Google Patents
Side slope protection structure capable of being constructed underwater Download PDFInfo
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- CN211113446U CN211113446U CN201921416908.5U CN201921416908U CN211113446U CN 211113446 U CN211113446 U CN 211113446U CN 201921416908 U CN201921416908 U CN 201921416908U CN 211113446 U CN211113446 U CN 211113446U
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Abstract
The utility model discloses a side slope protective structure that can be under water construction, including geotechnological cloth, lump stone, rubble, geotechnique's mould bag concrete and gabion. The geotextile is tightly attached to the underwater steep slope to be reinforced and extends to the periphery. The face of the filled rock blocks is a gentle slope which can be stabilized underwater. The gaps between the surface stones are filled with broken stones. Concrete of the earthwork model bag is paved on the broken stone, and the gabion stone cage is pressed on the concrete of the earthwork model bag. The utility model discloses geotechnique's mould bag concrete parcel riprap body top layer prevents that the lump stone from being washed away by rivers, and towns the foot with the gabion, can form solid bank protection banket system, and is sturdy and durable, and does not need the cofferdam during construction, saves the time limit for a project greatly, reduce cost.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic engineering technique and specifically relates to a side slope protective structure that can be under water under construction is related to.
Background
In the process of dyke reinforcement, the side slope of some dykes on the beach is steeper, and the hidden danger of landslide exists. If slope cutting and bank withdrawal are carried out for thick cultivation, the engineering quantity is large, the occupied area is large, and the construction period is long. If vertical reinforcement measures are adopted, such as steel sheet piles and the like, the cost is inevitably high. If the stone is just thrown, the stone is easily washed away by water flow. The slope protection structure capable of being constructed underwater does not need to be provided with a cofferdam, not only can the purpose of reinforcement be achieved, but also the cost can be saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defect among the prior art, provide a side slope protective structure that can be under water construction, including geotechnological cloth, lump stone, rubble, geotechnique's mould bag concrete, check guest gabion. The solid slope protection foot protection system is formed by geotextile, rock blocks, broken stones, earthwork mold bag concrete and gabion gabions, and cofferdams are not needed during construction. Novel structure, convenient implementation and low cost.
The purpose of the utility model is realized through the following technical scheme:
a side slope protection structure capable of being constructed underwater comprises geotextile, rock blocks, broken stone, earthwork mold bag concrete and gabion gabions. And sinking the geotextile into the underwater steep slope to be reinforced, and extending the geotextile to the periphery. And throwing the block stones onto the underwater geotextile by using a stone throwing boat, wherein the stone throwing body faces the empty surface to form an underwater stable gentle slope. And filling gaps on the surface layer of the rock blocks by using broken stones on the outer surface of the riprap body. And paving the surface of the rock block with a geotechnical model bag, wherein the model bag extends from the rock-throwing foot to the riverbed. Pumping concrete mixed with a proper amount of non-dispersant into a mold bag on shore, and filling the mold bag tightly. After the concrete is initially set, the gabion is pressed on the outwards extending mould bag concrete and then extends towards the outer riverbed. The solid slope protection foot protection system is formed by geotextile, rock blocks, broken stones, earthwork mold bag concrete and gabion gabions, and cofferdams are not needed during construction.
Preferably, the non-woven geotextile (with the mass of 30 g/m) is sunk into the side slope underwater terrain to be reinforced2) And the soil cloth extends to the riverbed side slope and extends for 3m to the periphery, so that the settled riprap can be completely held by the soil cloth, and a certain safety margin is provided.
Preferably, the rock block is thrown out of the rock throwing ship to form a rock throwing body, a gentle slope of 1:3 is formed on the free face of the rock throwing body, and the horizontal width of the top of the rock throwing body is 3 m.
Preferably, the crushed stone is used for filling gaps in the surface layer of the rock blocks and leveling the gaps on the surface layer of the rock blocks, and the thickness of the leveled crushed stone layer is 10 cm.
Preferably, the rectangular filtration-point-free die bag made of cotton fiber is selected, and the weight of the rectangular filtration-point-free die bag is more than 50g/m2Equivalent aperture not greater than 0.2mm, longitudinal tensile strength not less than 2300N/5cm, and vertical permeability coefficient of 10-2cm/s。
Preferably, the earthwork model bag is paved on the riprap body from the place where the slope toe of the riprap body extends to the river bed for 2m till the junction of the top of the riprap body and the side slope, and the earthwork model bag completely covers the riprap body.
Preferably, the slump of the concrete is controlled to be more than 20cm on shore. C25 concrete mixed with proper amount of non-dispersant is pumped into a mould bag, and the output of the concrete is 30m3And h, the minimum filling thickness of the mold bag is 0.3m, and the mold bag is tightly filled.
Preferably, after the concrete is initially set, the gabion with the thickness of 0.5m is pressed on the outwards extending mould bag concrete and then extends for 2m towards the outer riverbed.
Advantageous effects
1. The lump stones are fully utilized, concrete is adopted as little as possible, and the energy-saving and environment-friendly effects are achieved.
2. The underwater construction method can be used for underwater construction, is suitable for various complex terrains, saves the construction cofferdam, accelerates the construction progress and reduces the investment.
3. The geotechnical model bag has certain water permeability, can rapidly reduce the water-cement ratio of concrete, accelerate the solidification speed of the concrete and increase the compressive strength of the concrete.
4. The concrete of the earthwork mold bag wraps the surface layer of the riprap body, so that the rock blocks are prevented from being washed away by water flow, and the feet are pressed by the gabion, so that the earthwork mold bag is good in integrity, firm and durable.
Drawings
Fig. 1 is a sectional view of a side slope protection structure capable of underwater construction.
Description of the reference numerals
1. Geotextile, 2, stone blocks, 3, broken stone, 4, earthwork mold bag concrete, 5, gabion
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
The first embodiment is as follows:
as shown in fig. 1, the utility model discloses side slope protective structure that can be under water construction comprises geotechnological cloth 1, lump stone 2, rubble 3, geotechnique's mould bag concrete 4, gabion 5, wherein:
1. according to the underwater topography of the side slope to be reinforced, the non-woven geotextile 1 (with the mass of 30 g/m) is sunk2) And the soil engineering cloth 1 can completely hold the settled riprap body and has certain safety margin when reaching the riverbed side slope and extending for 3m to the periphery.
2. And throwing the block stones 2 from the stone throwing ship to form a stone throwing body, wherein the free face of the stone throwing body forms a gentle slope with the ratio of 1:3, and the horizontal width of the top is 3 m.
3. And filling gaps on the surface layer of the stone blocks with broken stones 3 on the outer surface of the stone throwing body, and leveling, wherein the thickness of the leveled broken stone layer is 10 cm.
4. Selecting a rectangular filtration-point-free mold bag made of cotton fiber, wherein the weight of the mold bag is more than 50g/m2Equivalent aperture not greater than 0.2mm, longitudinal tensile strength not less than 2300N/5cm, and vertical permeability coefficient of 10-2cm/s。
5. And (3) paving a geotechnical model bag to the riprap body from the position of 2m extending from the slope foot of the riprap body to the riverbed to the junction of the top of the riprap body and the side slope, and enabling the geotechnical model bag to completely cover the riprap body.
6. And controlling the slump of the concrete to be more than 20cm on shore. C25 concrete mixed with proper amount of non-dispersant is pumped into a mould bag, and the output of the concrete is 30m3And h, the minimum filling thickness of the mold bag is 0.3m, and the mold bag is tightly filled.
7. After the concrete is initially set, the gabion with the thickness of 0.5m is pressed 5 on the concrete 4 of the earthwork model bag extending outwards, and then the gabion extends 2m towards the external riverbed.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (6)
1. A side slope protection structure capable of being constructed underwater is characterized by comprising geotextile, rock blocks, broken stones, geotechnical mold bag concrete and gabions; the geotextile is tightly attached to the underwater steep slope to be reinforced and extends to the periphery; the face of the filled rock blocks is a gentle slope which can be stabilized underwater; the gaps between the surface layer stones are filled with broken stones; concrete of the earthwork model bag is paved on the broken stone, and the gabion stone cage is pressed on the concrete of the earthwork model bag.
2. The slope protection structure capable of being underwater constructed as claimed in claim 1, wherein the non-woven geotextile (with a mass of 30 g/m) is sunk in accordance with the underwater topography of the slope to be reinforced2) And the soil cloth extends to the riverbed side slope and extends for 3m to the periphery, so that the settled riprap can be completely held by the soil cloth, and a certain safety margin is provided.
3. The slope protection structure capable of being constructed underwater according to claim 1, wherein a rubble is thrown from a rubble throwing boat to form a rubble body, the free face of the rubble body forms a gentle slope of 1:3, and the horizontal width of the top is 3 m.
4. The slope protection structure capable of being underwater constructed as claimed in claim 1, wherein the outer surface of the riprap body is leveled by filling gaps in the surface layer of the rock blocks with crushed stones, and the thickness of the leveled crushed stone layer is 10 cm.
5. The slope protection structure capable of being constructed underwater according to claim 1, wherein the earth work bags are paved on the riprap body from the place where the bottom of the riprap body extends to the outer riverbed by 2m until the place where the top of the riprap body meets the slope, and the earth work bags completely cover the riprap body.
6. The slope protection structure capable of being constructed underwater according to claim 1, wherein after the concrete is initially set, gabions with the thickness of 0.5m are pressed on the outwards extended mould bag concrete and then extend for 2m towards the outer riverbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416908.5U CN211113446U (en) | 2019-08-28 | 2019-08-28 | Side slope protection structure capable of being constructed underwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416908.5U CN211113446U (en) | 2019-08-28 | 2019-08-28 | Side slope protection structure capable of being constructed underwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211113446U true CN211113446U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921416908.5U Expired - Fee Related CN211113446U (en) | 2019-08-28 | 2019-08-28 | Side slope protection structure capable of being constructed underwater |
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| Country | Link |
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| CN (1) | CN211113446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552324A (en) * | 2019-08-28 | 2019-12-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Side slope protection structure capable of underwater construction and construction method thereof |
-
2019
- 2019-08-28 CN CN201921416908.5U patent/CN211113446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552324A (en) * | 2019-08-28 | 2019-12-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Side slope protection structure capable of underwater construction and construction method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |