CN217325475U - Reinforced structure is restoreed to hydraulic retaining wall that collapses - Google Patents
Reinforced structure is restoreed to hydraulic retaining wall that collapses Download PDFInfo
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- CN217325475U CN217325475U CN202220485157.8U CN202220485157U CN217325475U CN 217325475 U CN217325475 U CN 217325475U CN 202220485157 U CN202220485157 U CN 202220485157U CN 217325475 U CN217325475 U CN 217325475U
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Abstract
The utility model discloses a reinforced structure is restoreed to hydraulic retaining wall that collapses belongs to hydraulic engineering technical field. The repairing and reinforcing structure comprises an original retaining wall collapsed section repairing structure, wherein the original retaining wall collapsed section repairing structure comprises wood piles arranged on one side, close to a river, of an original retaining wall block stone foundation; a riprap concrete layer is filled at the top of the timber pile; the reinforced concrete bottom plate is positioned above the riprap concrete layer; the first stone retaining wall is positioned above the reinforced concrete bottom plate; and the drainage mechanism is positioned on the backwater side of the first stone retaining wall. The utility model also provides an above-mentioned reinforcement method of restoreing reinforced structure, the utility model discloses a method consolidates the hydraulic retaining wall that collapses, resumes wall body drainage and anti-strains the function, satisfies embankment revetment safe operation needs.
Description
Technical Field
The utility model relates to a hydraulic engineering technical field, concretely relates to hydraulic retaining wall restoration reinforced structure collapses.
Background
The hydraulic retaining wall is a structure which bears soil pressure, prevents soil body from collapsing and sliding or enables partial side load to be transmitted and dispersed to filling soil in hydraulic and hydroelectric engineering. The common hydraulic retaining wall has the gravity type, cantilever type, counterfort etc. and the design principle of gravity type hydraulic retaining wall utilizes the gravity of wall body self to maintain retaining wall's balance and stability, has advantages such as the design form is simple, draw materials simply and construction technology is simple and convenient. According to actual engineering requirements, the gravity type hydraulic retaining wall is divided into different types such as a downward inclined type retaining wall, a upward inclined type retaining wall and a vertical type retaining wall.
The hydraulic retaining wall not only has the function of retaining soil, but also has multiple functions of retaining water, guiding water, preventing seepage in a lateral direction and the like, and is widely applied to the construction process of water conservancy and hydropower engineering at present.
After the gravity retaining wall is used for many years, the forward tilting, sinking and even collapsing of the retaining wall can be caused by various reasons, such as long-time rainfall in flood season, reduction of soil pressure in front of the wall and the like, and how to scientifically and reasonably repair and reinforce the collapsed retaining wall is a subject to which water conservancy workers must face.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem among the prior art, providing a hydraulic retaining wall repair reinforced structure collapses.
The utility model provides a hydraulic retaining wall restoration reinforced structure collapses, including former retaining wall section of collapsing restoration structure, former retaining wall section of collapsing restoration structure includes:
the wooden piles are arranged on one side, close to the river, of the original retaining wall block stone foundation;
a riprap concrete layer is filled at the top of the timber pile;
the reinforced concrete bottom plate is positioned above the riprap concrete layer;
the first stone retaining wall is positioned above the reinforced concrete bottom plate;
and the drainage mechanism is positioned on the backwater side of the first stone retaining wall.
Preferably, the upper layer and the lower layer of the first stone retaining wall are tied by steel bars.
Preferably, the wooden piles are arranged in a quincunx shape.
Preferably, the first stone retaining wall stone bars are staggered from top to bottom, overlapped from inside to outside, and orderly.
Preferably, the drainage mechanism comprises a reverse filter layer and a drainage pipe, the drainage pipe is embedded in the reverse filter layer, and the opening of the drainage pipe is wrapped with geotextile.
Preferably, the reverse filter layer comprises stones, melon seed sheets, yellow sand, geotextile and 2 layers of polyethylene low foam boards in sequence, and the stones are positioned at one side close to the retaining wall.
Preferably, still include the retaining wall reinforced structure of the section of not collapsing of the adjacent both sides of the section of collapsing, including the former retaining wall lower part of the section of collapsing both sides and the newly-built second strip stone retaining wall of former retaining wall upper strata, also adopt the second reinforcing bar drawknot between the upper and lower layer of second strip stone retaining wall.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model respectively reinforces and repairs the collapse section and the non-collapse section, wherein the original pile wall foundation is reasonably utilized when the collapse section is repaired, thereby reducing the repair cost; the non-collapse sections on the adjacent sides of the collapse sections are reinforced and relieved, so that the repair wall body of the collapse sections and the original retaining wall form a stressed whole, and the wall is firm and durable.
The utility model discloses it is wider to restore reinforced structure application scope, generally is applicable to the restoration of hydraulic gravity type block formula retaining wall structure.
The utility model discloses it is effectual to restore reinforced structure processing, and hidden danger is handled more thoroughly, and the barricade after the restoration is stable, and is sturdy and durable, guarantees dyke safe operation.
The utility model discloses it is better to restore reinforced structure outward appearance harmony, adopts the barred rock to build by laying bricks or stones, and outward appearance and surrounding environment are more harmonious, and whole aesthetic property is higher.
Drawings
FIG. 1 is a schematic view of the repairing structure of the collapsed section of the retaining wall of the present invention;
FIG. 2 is a schematic view of the arrangement positions of the timber piles and the reinforced concrete bottom plate of the present invention;
fig. 3 is the utility model discloses section retaining wall reinforced structure schematic diagram does not collapse.
Description of reference numerals:
1. the concrete retaining wall comprises wood piles, 2 original retaining wall block stone foundations, 3 riprap concrete layers, 4 reinforced concrete bottom plates, 5 first stone retaining walls, 6 drainage mechanisms, 7 first reinforcing steel bars, 8 second stone retaining walls, 9 second reinforcing steel bars, 10 original reinforced concrete plate pile walls, 12 channel steel and 13 opposite-pulling round steel.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying fig. 1-3, but it should be understood that the scope of the present invention is not limited by the following detailed description. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a pair of hydraulic retaining wall restoration reinforced structure collapses, including former retaining wall section of collapsing restoration structure, former retaining wall section of collapsing restoration structure includes: the timber pile 1 is arranged on one side, close to the river, of the original retaining wall block stone foundation 2; a riprap concrete layer 3 filled at the top of the timber pile 1; the reinforced concrete bottom plate 4 is positioned above the riprap concrete layer 3; the first stone retaining wall 5 is positioned above the reinforced concrete bottom plate 4; and the drainage mechanism 6 is positioned on the backwater side of the first stone retaining wall 5.
Furthermore, the upper layer and the lower layer of the first stone retaining wall 5 are tied by adopting first steel bars 7 and are built by adopting M15 mortar.
Further, the wooden piles 1 are arranged in a quincunx shape.
Furthermore, 5 stones of the first stone retaining wall are staggered vertically, are overlapped internally and externally, and are orderly arranged.
Further, drainage mechanism 6 includes reverse filter bed and drain pipe, the drain pipe is pre-buried in reverse filter bed, and the mouth of pipe of drain pipe is wrapped up in geotechnological cloth.
Further, the inverted filter layer sequentially comprises medium stones, melon seed sheets, yellow sand, geotextile and 2 layers of polyethylene low foam boards, and the medium stones are positioned on one side close to the retaining wall.
Further, still including the section retaining wall reinforced structure that does not collapse of the adjacent both sides of the section that collapses, including the former retaining wall lower part of the section both sides that collapse and the second strip stone barricade 8 on former retaining wall upper strata, also adopt second reinforcing bar 9 drawknot between 8 upper and lower layers of second strip stone barricade.
The original reinforced concrete sheet pile wall 10 to be described is also provided with two groups of vertical wooden piles which are parallel to each other and play the role of cofferdam on one side close to the river channel, the channel steel 12 is longitudinally connected, and the two groups of channel steel 12 are connected through counter-pulling round steel 13.
The reinforcing method for repairing the reinforcing structure of the collapsed hydraulic retaining wall comprises the following steps: firstly, searching original design data, rechecking the bearing capacity and stability of a collapsed section foundation, then carrying out field detection, analyzing and diagnosing collapse reasons, and finally, pertinently providing a scheme for reinforcing the retaining wall; the method specifically comprises the following steps:
cleaning the accident site: clearing the collapsed retaining wall, and removing the facility influencing the stabilization of the retaining wall after the wall is removed;
and (3) repairing construction of the retaining wall of the collapse section: arranging a cofferdam in front of the retaining wall of the collapse section, cleaning the foundation pit from the front of the retaining wall to the cofferdam, arranging a wood pile foundation, throwing stones on the wood pile foundation to be below the normal water level, pouring a reinforced concrete bottom plate on the wood pile foundation, and continuously throwing stones between the front of the bottom plate and the cofferdam to be near the normal water level;
and (3) reinforcing construction of the retaining wall at the non-collapsed section: building the upper part of the adjacent non-collapsed retaining wall, properly reducing the elevation load of the wall top, and building the retaining wall by using bars or blocks; the range is from the collapse section to the retaining wall at the adjacent parting position; if the geological condition is poor, the method extends to the retaining wall and the geological section of the same type;
newly adding a drainage facility: and arranging a reverse filtering layer on the backwater side of the newly-built retaining wall, and arranging a drain pipe at intervals.
Taking an emergency rescue project of a certain dike waterside grout block stone retaining wall as an example:
the project is a flood control river bank project of an urban area section, the length of a retaining wall is about 1km, the height of a bank top is about 12.5m, the top width is 10-20 m, and the project is also used as a traffic road; adopting a gravity type retaining wall for protection on the waterside, wherein an old stone retaining wall with the height of less than 10.5m is used, and a high-back grouted block stone retaining wall is used above the old stone retaining wall; and a green belt is arranged along the line 0.9-4.2 m behind the wall, and partial shrubs and trees are planted on the green belt.
After rainfall for many days in flood season, the retaining wall collapses about 24.0m, and a road at the top of the wall back dike cracks. Through analysis, the main reasons are: firstly, the collapse section retaining wall is formed by heightening year by year, the construction standard is low, and the wall body has no drainage inverted filter facility; secondly, filling soil behind the wall is higher, and arbors and shrubs are planted; thirdly, the arrangement of the road surface drainage facilities at the top of the dike is unreasonable, and strong rainfall occurs, so that the water depth of the road area reaches 15cm, and the phenomenon of local collapse caused by the fact that the soil body behind the retaining wall is soaked by rainwater is caused.
After field detection and analysis and diagnosis of collapse reasons, a reinforcement treatment scheme is provided for the retaining wall in a targeted manner as follows:
(1) cleaning the accident site: moving arbors and shrubs from the back of the retaining wall to the positions between the curbstones; the top elevation of the retaining wall is reduced to 11.5 m; the horizontal section behind the wall is changed into a slope, so that trees and shrubs are not planted any more, and the load reduction effect is achieved;
(2) and (4) restoring the retaining wall at the collapsed position: reserving an old stone wall foundation at the collapse position, arranging a soil bag cofferdam about 2m in front of the retaining wall for facilitating construction and ensuring the stability requirement of the retaining wall foundation, arranging wood piles in a foundation pit from the front of the old stone wall foundation to the cofferdam, arranging the wood piles in a quincunx shape, and arranging the top elevation of the wood piles at 7.5 m; backfilling the foundation pit at the top of the wood pile with riprap concrete, wherein the height of the backfilled top is consistent with that of the foundation surface of the old stone wall and is about 8.0 m; newly building a reinforced concrete bottom plate on the foundation, wherein the width of the bottom plate is 3.0m, and the thickness of the bottom plate is 0.5 m; a first stone retaining wall is built above the bottom plate, generally, the first stone retaining wall is built by 80 multiplied by 40 multiplied by 30cm stone bars, and 10 layers are formed; the upper layer and the lower layer of the first stone retaining wall are tied by steel bars and built by M15 mortar; when the stone bars are built, the joints are staggered up and down, and are lapped inside and outside, and the stone bars are orderly. See figure 1 for details.
(3) And (3) retaining wall deloading at the non-collapse position: the top of the old stone wall is dismantled and built, and then the high part is connected, and the first stone retaining wall is additionally connected and grouted to the height of 11.8 m; the first stone retaining wall is built by 80 multiplied by 40 multiplied by 30cm of bluestone, the elevation of the wall bottom is determined according to the boundary of the existing new retaining wall and the old retaining wall, the elevation of the wall top is 11.8m, the slope is set above the wall top to the top of the existing dike, and the design slope ratio is 1: 5; newly building a reinforced concrete embankment wall along the current curb at the steep part of the local soil slope; in order to ensure that the retaining wall is stable, firm and durable, the upper layer and the lower layer of the first stone retaining wall are tied by steel bars and built by M15 mortar. See figure 3 for details.
(4) Newly adding a drainage facility: the back water side of the newly-built barred rock retaining wall is provided with a reverse filter layer, and a reverse filter layer drain pipe is arranged every 5 m.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a reinforced structure is restoreed to hydraulic retaining wall that collapses, a serial communication port, including former retaining wall section of collapsing restoration structure, former retaining wall section of collapsing restoration structure includes:
the wooden piles (1) are arranged on one side, close to the river, of the original retaining wall block stone foundation (2);
the riprap concrete layer (3) is filled at the top of the wood pile (1);
the reinforced concrete bottom plate (4) is positioned above the riprap concrete layer (3);
the first stone retaining wall (5) is positioned above the reinforced concrete bottom plate (4);
and the drainage mechanism (6) is positioned on the backwater side of the first stone retaining wall (5).
2. A collapsed hydraulic retaining wall repairing and reinforcing structure as claimed in claim 1, wherein the first retaining wall (5) is tied by first reinforcing bars (7) between the upper and lower layers.
3. The collapsed hydraulic retaining wall repairing reinforcing structure according to claim 1, wherein the wooden piles (1) are arranged in a quincunx pattern.
4. The repairing and reinforcing structure for collapsed hydraulic retaining wall according to claim 1, wherein the bars of the first bar retaining wall (5) are staggered up and down, overlapped inside and outside, and orderly arranged.
5. The collapsed hydraulic retaining wall repairing and reinforcing structure according to claim 1, wherein the drainage mechanism (6) comprises an inverted filter layer and a drainage pipe, the drainage pipe is embedded in the inverted filter layer, and the opening of the drainage pipe is wrapped with geotextile.
6. The collapsed hydraulic retaining wall repairing and reinforcing structure according to claim 5, wherein the reverse filtering layer comprises stones, melon seed pieces, yellow sand, geotextile and 2 layers of polyethylene low foam boards in sequence, and the stones are positioned at one side close to the retaining wall.
7. The collapsed hydraulic retaining wall repairing and reinforcing structure according to claim 1, further comprising an un-collapsed retaining wall reinforcing structure on two adjacent sides of the collapsed section, comprising a second retaining wall (8) newly built on the lower part of the original retaining wall on two sides of the collapsed section and the upper layer of the original retaining wall, wherein the second retaining wall (8) is tied by second steel bars (9) between the upper layer and the lower layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220485157.8U CN217325475U (en) | 2022-03-02 | 2022-03-02 | Reinforced structure is restoreed to hydraulic retaining wall that collapses |
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| CN202220485157.8U CN217325475U (en) | 2022-03-02 | 2022-03-02 | Reinforced structure is restoreed to hydraulic retaining wall that collapses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411805A (en) * | 2022-03-02 | 2022-04-29 | 淮安市水利勘测设计研究院有限公司 | Collapsed hydraulic retaining wall repairing and reinforcing structure and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411805A (en) * | 2022-03-02 | 2022-04-29 | 淮安市水利勘测设计研究院有限公司 | Collapsed hydraulic retaining wall repairing and reinforcing structure and method |
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