Seawall water stop structure

Abstract

The utility model discloses a seawall water stop structure, and relates to the technical field of seawall seepage prevention. The seawall water stop structure comprises an anti-seepage water stop structure arranged along the axis of a seawall, a seawall core stone layer covers the anti-seepage water stop structure, and the section of the seawall core stone layer is trapezoidal; foot protection block stones are arranged on the feet of the dike core stone layer, and a block stone surface protection layer and a concrete accropode block layer are arranged on the slope face of the dike core stone layer. A gravel layer, a water stable layer and an asphalt layer are sequentially arranged at the top of the dike core stone layer from bottom to top; the seepage-proofing and water-stopping structure comprises two rows of steel sheet piles which are oppositely arranged, and clay is filled between the two rows of steel sheet piles. According to the embodiment provided by the utility model, the riprap seawall structure is optimized, and the construction sequence is changed, the construction process flow is simplified, the construction difficulty of a seawall structure project is reduced, the construction cost of the project is saved and the construction efficiency of the project is improved while the seepage-proofing and water-stopping functions of the structure are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of seawall anti-seepage, and more specifically, to a seawall water-stopping structure. Background Art

[0002] The riprap seawall has the advantages of stable structure, low cost, abundant raw materials, local materials, good anti-scouring performance, mature construction technology, convenient and fast construction, etc. However, its disadvantage is that it is easy to seep water and cannot effectively curb the water flow to form good construction conditions. In order to prevent the influence of seawater on the construction, progress and safety of the project, the seawall anti-seepage and water-stopping technology, as a scientific construction method, can effectively prevent seawater from infiltrating, create conditions for the internal construction of the seawall, and ensure the safety and stability of the building structure.

[0003] In the prior art, cast-in-place concrete anti-seepage walls or interlocking cast-in-place piles are used to achieve the effect of anti-seepage and water-stopping. However, as a riprap embankment structure, after the cross-section of the seawall structure is formed, it is difficult to construct an anti-seepage wall near the axis of the seawall. The concrete anti-seepage wall needs to be drilled with mechanical equipment and then poured with energy. There are usually two processes. One is to use ground-connected wall construction equipment to drill holes and then pour concrete; the other is to use impact drilling to drill holes, and then drive cast-in-place piles at intervals, and then form an interlocking pile structure. For the first process, since the riprap embankment is made of large stones, it is difficult for the ground-connected wall equipment to drill holes, and there is also a risk of hole collapse, and the construction quality cannot be guaranteed. For the second process, although impact drilling is easier, the construction speed is slower. The holes between two adjacent piles must be completed before the concrete of the previous cast-in-place pile solidifies, otherwise the interlocking pile will not play the role of the interlocking pile. In addition, there is also a risk of hole collapse when drilling with impact. The above two processes have strict requirements on the raw materials, mix ratio, temperature and initial setting time of riprap seawall concrete. The overall structural process is complex and has extremely high requirements on technical personnel. The quality of waterproofing is difficult to guarantee. Utility Model Content

[0004] In view of this, the utility model provides a seawall water-stopping structure, which can simplify the construction process and ensure the anti-seepage and water-stopping effects.

[0005] The utility model provides a seawall water-stopping structure, comprising: an anti-seepage water-stopping structure arranged along the axis of the seawall, the anti-seepage water-stopping structure is covered with a core stone layer, and the cross-section of the core stone layer is a trapezoid;

[0006] The foot of the core stone layer of the embankment is provided with a foot protection block stone, and the slope surface of the core stone layer of the embankment is provided with a block stone protective layer and a concrete twist block layer;

[0007] The top of the core stone layer of the embankment is provided with a crushed stone layer, a water-stabilizing layer and an asphalt layer in sequence from bottom to top;

[0008] The anti-seepage and water-stopping structure comprises two rows of steel sheet piles arranged opposite to each other, and clay is filled between the two rows of steel sheet piles.

[0009] In a possible implementation, a wave-breaking wall is provided on the side of the top of the core stone layer close to the liquid surface.

[0010] In a possible implementation, the steel sheet piles are embedded in the water-stop layer by at least 50 cm, and the top height of the anti-seepage and water-stop structure is at least 50 cm higher than the designed high water level of the liquid surface.

[0011] In a possible implementation, the distance between the opposite steel sheet piles is 2-4 m.

[0012] In a possible implementation, a through hole is opened on the top of the steel sheet pile;

[0013] Tension screws are connected between the through holes of the opposite steel sheet piles.

[0014] In a possible implementation, the tension screw rod is perpendicular to an extension direction of the steel sheet piles, and the length of the tension screw rod is greater than the distance between the oppositely arranged steel sheet piles.

[0015] In a possible implementation, the end of the tension screw extending out of the steel sheet pile is sleeved with a butterfly-shaped buckle;

[0016] A nut is provided on the side of the butterfly buckle facing away from the steel sheet pile and is threadedly connected with the tension screw.

[0017] In a possible implementation, two steel pipes are provided between the butterfly mountain buckle and the steel sheet pile;

[0018] The steel pipes are respectively located above and below the tension screw rods.

[0019] In a possible implementation, the same steel pipe is located between a plurality of the butterfly mountain-shaped buckles and the steel sheet piles.

[0020] Compared with the prior art, the present invention provides at least the following beneficial effects:

[0021] In the embodiment provided by the utility model, the anti-seepage and water-stopping structure formed by combining steel sheet piles with clay has the following advantages: (1) Anti-seepage and water-stopping construction is carried out before the construction of the riprap seawall. The permeability coefficient of the clay itself is very small. The anti-seepage and water-stopping construction is carried out by combining steel sheet piles. The construction process is simple and the construction quality can be guaranteed, thereby ensuring the anti-seepage and water-stopping effect; (2) The riprap seawall construction can be carried out after the clay filling is completed. Compared with the prior art that concrete needs time to reach the design strength before it can play the anti-seepage and water-stopping effect, the construction speed of this embodiment is fast and efficient. (3) The materials are easy to obtain and the construction cost is lower. If it is used as a temporary cofferdam, after the temporary cofferdam structure is completed and the temporary cofferdam is removed, the steel sheet piles can be recycled and reused, further saving the construction cost. This patent is applicable to the riprap seawall structure with a clay water-stopping layer on the foundation. By optimizing the riprap seawall structure, while ensuring the anti-seepage and water-stopping function of the structure, the construction sequence is changed, the construction process flow is simplified, the construction difficulty of the seawall structure project is reduced, the construction cost of the project is saved, and the construction efficiency of the project is improved.

[0022] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0023] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0025] Figure 1 A schematic diagram of the structure of a seawall water-stopping structure provided by the utility model;

[0026] Figure 2 A schematic diagram of the cross-sectional structure of an anti-seepage and water-stopping structure provided by the utility model;

[0027] Figure 3 The present invention is a schematic diagram of the front structure of an anti-seepage and water-stopping structure provided by the utility model. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0032] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0033] The utility model embodiment provides a seawall water stop structure, referring to Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a seawall water-stopping structure, comprising: an anti-seepage water-stopping structure 10 arranged along the axis 01 of the seawall, a core stone layer 20 is covered on the anti-seepage water-stopping structure 10, and the cross-section of the core stone layer 20 is a trapezoid;

[0034] The foot of the core stone layer 20 is provided with a foot protection block 30, and the slope surface of the core stone layer 30 is provided with a block stone protection layer 40 and a concrete twist block layer 50;

[0035] The top of the core stone layer 20 is provided with a crushed stone layer 61, a water-stable layer 62 and an asphalt layer 63 in order from bottom to top;

[0036] A wave-blocking wall 70 is provided on the top of the core stone layer 20, close to the liquid surface 02;

[0037] The anti-seepage and water-stopping structure 10 comprises two rows of steel sheet piles 11 arranged opposite to each other, and clay 12 is filled between the two rows of steel sheet piles 11 .

[0038] It is understandable that before the seawall is riprapped to form a dyke, an anti-seepage and water-stopping structure 10 is arranged along the seawall axis 01. The anti-seepage and water-stopping structure provided in this embodiment includes two rows of steel sheet piles 11 and clay 12 filled between the steel sheet piles 11.

[0039] Specifically, the steel sheet piles 11 are sunk near the axis 01 of the seawall, and the distance between the two rows of steel sheet piles 11 can be comprehensively determined according to the anti-seepage and water-stopping grade, the clay permeability coefficient, the steel sheet pile water-stopping effect, etc. Generally speaking, the distance between the relative steel sheet piles 11 is 2-4m, which can meet the requirements of anti-seepage and water-stopping. In addition, the length of the steel sheet piles 11 sunk into the water-stopping layer 03 can be determined according to the actual engineering geological survey data. Generally speaking, the steel sheet piles 11 are embedded in the water-stopping layer 03 by at least 50cm. After the steel sheet piles 11 are sunk, clay 12 is filled between the relative steel sheet piles 11, and clay 12 with a small permeability coefficient needs to be used. The steel sheet piles 11 and the clay 12 filled between the steel sheet piles 11 form an anti-seepage and water-stopping structure 10. The elevation of the anti-seepage and water-stopping structure 10 can be determined according to the hydrological data. Generally speaking, the top height of the anti-seepage and water-stopping structure 11 is at least 50cm higher than the designed high water level of the liquid level 02.

[0040] It should be noted that before the steel sheet piles 11 are sunk, the seabed surface needs to be cleaned to remove obstacles that affect the sinking of the steel sheet piles 11 and permeable sand, stone, silty clay, etc., so as to achieve a clay layer with good water-stopping performance for the seabed foundation as much as possible.

[0041] Furthermore, after the construction of the anti-seepage and water-stopping structure 10 is completed, normal riprap seawall construction is carried out on both sides of the anti-seepage and water-stopping structure 10. Specifically, it includes: the construction of core stone filling, foot protection block stone, surface protection block stone, twisted king block (or twisted I-shaped block, etc.). And form the core stone layer 30, the block stone surface protection layer 40, the concrete twisted king block layer 50, etc. respectively. Furthermore, a seawall surface layer 60 and a wave-breaking wall 70 can also be set on the top of the core stone layer 30. The wave-breaking wall 70 is set on the top of the core stone layer 30 and faces the side of the liquid surface. The seawall surface layer 60 specifically includes: a crushed stone layer 61, a water-stabilizing layer 62 and an asphalt layer 63 are arranged in sequence from bottom to top. The specific operation process of the riprap seawall construction technology can refer to the existing technology and will not be repeated here.

[0042] In the embodiment provided by the utility model, the anti-seepage and water-stopping structure formed by combining steel sheet piles with clay has the following advantages: (1) Anti-seepage and water-stopping construction is carried out before the construction of the riprap seawall. The permeability coefficient of the clay itself is very small. The anti-seepage and water-stopping construction is carried out by combining steel sheet piles. The construction process is simple and the construction quality can be guaranteed, thereby ensuring the anti-seepage and water-stopping effect; (2) The riprap seawall construction can be carried out after the clay filling is completed. Compared with the prior art that concrete needs time to reach the design strength before it can play the anti-seepage and water-stopping effect, the construction speed of this embodiment is fast and efficient. (3) The materials are easy to obtain and the construction cost is lower. If it is used as a temporary cofferdam, after the temporary cofferdam structure is completed and the temporary cofferdam is removed, the steel sheet piles can be recycled and reused, further saving the construction cost. This patent is applicable to the riprap seawall structure with a clay water-stopping layer on the foundation. By optimizing the riprap seawall structure, while ensuring the anti-seepage and water-stopping function of the structure, the construction sequence is changed, the construction process flow is simplified, the construction difficulty of the seawall structure project is reduced, the construction cost of the project is saved, and the construction efficiency of the project is improved.

[0043] In an optional embodiment provided by the present utility model, referring to Figure 2 and Figure 3 As shown, a through hole is provided at the top of the steel sheet pile 11;

[0044] Tension screws 13 are connected between the through holes of the opposing steel sheet piles 11 .

[0045] It is understandable that after the steel sheet piles 11 are sunk, holes need to be drilled at the corresponding positions on the top of the two rows of steel sheet piles to facilitate the insertion of the tension screws 13. Specifically, the tension screws 13 are perpendicular to the extension direction of the steel sheet piles 11, and the length of the tension screws 13 is greater than the distance between the oppositely arranged steel sheet piles 11. Both sides of the tension screws 13 pass through the through holes on the upper part of the steel sheet piles 11, and the ends of the tension screws 13 extending out of the steel sheet piles 11 are sleeved with butterfly mountain buckles 14.

[0046] Furthermore, two steel pipes 16 are provided between the butterfly buckle 14 and the steel sheet pile 11; the steel pipes 16 are respectively located above and below the tension screw 13. The steel pipe 16 can be selected with a diameter of 48 mm, which plays a role in stabilizing the structure and preventing deformation. The side of the butterfly buckle 14 facing away from the steel sheet pile 11 has a nut 15 that is threadedly connected to the tension screw 13. Tighten the nut 15 to fix the steel pipe 16 and the steel sheet pile 11.

[0047] Furthermore, multiple steel sheet piles 11 are connected and arranged along the axis 01 of the seawall, and any opposite steel sheet piles 11 are fixed by tension screws 13, butterfly buckles 14, and nuts 15. Any steel pipe 16 extends in the same direction as the steel sheet pile 11, and the length of the steel pipe 16 is at least greater than the width of the steel sheet pile 11. Therefore, the same steel pipe 16 is located between multiple butterfly buckles 14 and the steel sheet pile 11, which can stabilize the overall structure.

[0048] In summary, the seawall water-stopping structure provided by the utility model achieves at least the following beneficial effects:

[0049] In the embodiment provided by the utility model, the anti-seepage and water-stopping structure formed by combining steel sheet piles with clay has the following advantages: (1) Anti-seepage and water-stopping construction is carried out before the construction of the riprap seawall. The permeability coefficient of the clay itself is very small. The anti-seepage and water-stopping construction is carried out in combination with steel sheet piles. The construction process is simple and the construction quality can be guaranteed, thereby ensuring the anti-seepage and water-stopping effect; (2) The riprap seawall construction can be carried out after the clay filling is completed. Compared with the prior art in which concrete needs time to reach the design strength before it can play the anti-seepage and water-stopping effect, the construction speed of this embodiment is fast and the efficiency is high. (3) The materials are easy to obtain and the construction cost is lower. Moreover, if it is used as a temporary cofferdam, after the temporary cofferdam structure is completed and the temporary cofferdam is dismantled, the steel sheet piles can be recycled and reused, further saving the construction cost.

[0050] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A seawall water stopping structure, characterized in that: include: An anti-seepage and water-stopping structure arranged along the axis of the sea dike, the anti-seepage and water-stopping structure is covered with a dike core stone layer, and the cross-section of the dike core stone layer is a trapezoid; The foot of the core stone layer of the embankment is provided with a foot protection block stone, and the slope surface of the core stone layer of the embankment is provided with a block stone protective layer and a concrete twist block layer; The top of the core stone layer of the embankment is provided with a crushed stone layer, a water-stabilizing layer and an asphalt layer in sequence from bottom to top; The anti-seepage and water-stopping structure comprises two rows of steel sheet piles arranged opposite to each other, and clay is filled between the two rows of steel sheet piles.

2. The seawall water stopping structure according to claim 1, characterized in that: A wave-blocking wall is arranged on one side of the top of the core stone layer close to the liquid surface.

3. The seawall water stopping structure according to claim 1, characterized in that: The steel sheet piles are embedded in the water-stop layer by at least 50 cm, and the top height of the anti-seepage and water-stop structure is at least 50 cm higher than the designed high water level of the liquid surface.

4. The seawall water stopping structure according to claim 1, characterized in that: The distance between the opposite steel sheet piles is 2-4m.

5. The seawall water stopping structure according to claim 1, characterized in that: A through hole is provided on the top of the steel sheet pile; Tension screws are connected between the through holes of the opposite steel sheet piles.

6. The seawall water stopping structure according to claim 5, characterized in that: The tension screw rod is perpendicular to the extension direction of the steel sheet piles, and the length of the tension screw rod is greater than the distance between the steel sheet piles that are arranged opposite to each other.

7. The seawall water stopping structure according to claim 5, characterized in that: The end of the tension screw extending out of the steel sheet pile is sleeved with a butterfly buckle; A nut is provided on the side of the butterfly buckle facing away from the steel sheet pile and is threadedly connected with the tension screw.

8. The seawall water stopping structure according to claim 7, characterized in that: Two steel pipes are provided between the butterfly mountain buckle and the steel sheet pile; The steel pipes are respectively located above and below the tension screw rods.

9. The seawall water stopping structure according to claim 8, characterized in that: The same steel pipe is located between a plurality of the butterfly mountain-shaped buckles and the steel sheet piles.

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