CN216615679U

CN216615679U - Wave-penetration-preventing sand-permeable core wall structure used in riprap slope dike

Info

Publication number: CN216615679U
Application number: CN202122866747.3U
Authority: CN
Inventors: 厉泽逸; 吴红霞; 刘均卫; 张深; 尹政兴; 王大庚; 邓勇; 殷福安
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-27
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a wave-penetration and sand-penetration preventing core wall structure for a riprap slope dike, which comprises a dike core stone (1), a cushion layer (2), a protective surface layer (3), a riprap prism body (4) and a protective bottom (5), wherein the cushion layer (2) is paved on the upper surface of the dike core stone (1), the protective surface layer (3) is paved on the upper surface of the cushion layer (2), two sides of the dike core stone (1) are connected with the protective bottom (5) into a whole, and a core wall (6) is arranged in the middle of the cushion layer (2).

Description

Wave-penetration-preventing sand-permeable core wall structure used in riprap slope dike

Technical Field

The utility model relates to the technical field of port engineering, in particular to a core wall structure for preventing wave penetration and sand penetration in a riprap slope dike.

Background

The conventional riprap slope dike consists of a dike core stone, a cushion layer riprap, a protective layer and the like, and a riprap prism body and a protective bottom are arranged at the slope foot or the slope bottoms at the two sides of the outer slope of the slope dike. See in detail the conventional riprap slope embankment structure (as shown in fig. 1).

With the annual expansion of the overseas port engineering market in China, natural conditions such as long-period waves exceeding the design specification range of port engineering in China are sometimes encountered, for example, a friendship harbor is located on the west coast, west africa and the like, and has the characteristics of long wave period and large coastal sand transportation amount.

Because the traditional riprap slope dike has large void ratio, long-period waves have extremely strong capability of penetrating the riprap slope dike, large wave speed and considerable energy, poor berthing conditions in a harbor, cable breakage and the like are easily caused; the sand conveying amount along the shore is large, so that siltation is easy to generate at the positions of a harbor channel and a harbor pool, and the normal operation of the harbor is influenced. For example, at the end of 12 months in 1984, Ten thousand tons-wheel "Yuntai mountain number" of Tianjin ocean corporation in Western-style friendship harbor, cables were broken 20 times in 3 days.

Domestic and foreign researches show that the riprap slope dike has a good filtering effect on short-period waves, but has a limited filtering effect on long-period waves.

Under the condition of long-period wave, aiming at the dyke core stones in the riprap slope dike, the grading of the riprap stones with various grain diameters of the dyke core stones can be controlled to reduce the void ratio of the dyke core stones, so that the problems of wave penetration and sand penetration of the dyke core stones are solved. The most severe part of the wave acting on the breakwater is generally within about 1-fold wave height range above the calculated water level, and the part above the core stone of the riprap slope breakwater is generally located in the range, so a structure is urgently needed to solve the problem of wave penetration and sand penetration of the part above the core stone of the riprap slope breakwater under the action of long-period waves.

Disclosure of Invention

The utility model aims to overcome the defects of the background technology and provides a core wall structure for preventing wave penetration and sand penetration in a riprap slope dike.

The purpose of the utility model is implemented by the following technical scheme: the utility model provides a prevent unrestrained core wall structure that passes through sand for preventing in riprap slope dyke, it includes dyke core stone, bed course, armor, riprap arris body and protects the end, dyke core stone upper surface laid the bed course, the bed course upper surface laid the armor, the both sides of dyke core stone all with protect the end even as an organic whole, its characterized in that: and a core wall is arranged in the middle of the cushion layer.

In the above technical scheme: when the core wall is in an inverted T shape, the core wall is positioned in the cushion layer and the facing layer at the top of the dyke core stone, the short side of the core wall is positioned in the cushion layer, and the long side of the core wall is positioned in the facing layer.

In the above technical scheme: the thickness of the core wall in the cushion layer is consistent with that of the cushion layer, and the thickness of the core wall in the facing layer is consistent with that of the facing layer.

The utility model has the following advantages: 1. the core wall is arranged on the cushion layer or on both the cushion layer and the facing block body, so that the standard stability requirement can be met, and meanwhile, the core wall is of a solid structure and replaces cushion layer block stones or facing block bodies with high void ratio, so that the stone throwing slope dike can be well prevented from wave penetration and sand penetration under the long-period wave condition, and the safe operation of a port is ensured.

Drawings

Fig. 1 is a schematic view of a conventional riprap slope structure.

Fig. 2 is a schematic view of a structure in which a core wall is provided in a mat.

Fig. 3 is a schematic view of the structure of the core wall provided on both the mat layer and the armor layer.

In the figure: dyke core stone 1, bed course 2, armor coat 3, riprap prism 4, sole 5, core wall 6.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, but they are not to be construed as limiting the utility model, and are merely illustrative, and the advantages of the utility model will be more clearly understood and appreciated by those skilled in the art.

Referring to fig. 2-3, a core wall structure for preventing wave penetration and sand penetration in a riprap slope dike comprises a dike core stone 1, a cushion layer 2, a protective surface layer 3, riprap prisms 4 and a protective bottom 5, wherein the cushion layer 2 is laid on the upper surface of the dike core stone 1, the protective surface layer 3 is laid on the upper surface of the cushion layer 2, and both sides of the dike core stone 1 are connected with the protective bottom 5 into a whole, and the core wall structure is characterized in that: the middle of the cushion layer 2 is provided with a core wall 6.

When the core wall 6 is in an inverted T shape, the core wall 6 is positioned in the cushion layer 2 and the facing layer 3 at the top of the dyke core stone 1, the short side of the core wall 6 is positioned in the cushion layer 2, and the long side of the core wall is positioned in the facing layer 3. The core wall 6 is of a solid structure, replaces a cushion layer and a protective surface layer with high void ratio, and can better prevent the riprap slope dike from wave penetration and sand penetration under the long-period wave condition, thereby ensuring the safe operation of the port.

The thickness of the core wall 6 in the mat 2 is kept the same as that of the mat 2, and the thickness of the core wall 6 in the armor layer 3 is kept the same as that of the armor layer 3. The thickness of the core wall 6 in the cushion layer is consistent with that of the cushion layer 2, so that a temporary channel is conveniently distributed during construction; the thickness of the core wall 6 in the facing layer 3 is consistent with that of the facing layer 3, so that the core wall 6 is smoothly connected with the facing layers 3 on two sides, and the whole appearance is protected.

The anti-wave-penetration sand-penetration core wall structure used in the riprap slope dike is positioned at the top of a dike core stone of the riprap slope dike, and the top of the dike core stone is generally slightly higher than the construction water level, so that dry construction conditions are met.

The utility model comprises two core wall arrangement structures, and the concrete construction process is as follows:

setting core wall on the cushion stone

The core wall 6 is arranged on the cushion layer 2, the core wall 6 is a rectangular section, and the core wall 6 can be made of grouted block stones or cast-in-place concrete. When the riprap slope embankment is constructed under the long-period wave condition, the construction ship under the open sea condition has great construction risk, so the riprap slope embankment is suitable for construction by adopting a land pushing method.

When in construction, the embankment core stone is gradually pushed from land to sea side in sections, after each section of the embankment core stone 1 is filled, the slope is managed in time, a cushion layer 2 is covered, a protective surface layer 3 is installed (the exposed length of the embankment core stone 1 is not more than 50m), a core wall 6 at the top of the embankment core stone 1 is poured in a reproduction field, a crushed stone layer can be paved at the top of the core wall 6 to serve as a temporary construction channel after the core wall 6 reaches a certain strength, and the following construction sequence is the same as that of a conventional rubble-ripted slope embankment.

Secondly, core walls are arranged on the cushion layer block stone and the surface protection block body

The core wall 6 is arranged on both the cushion layer 2 and the protective layer 3, the core wall 6 is an inverted T-shaped section at the moment, construction is carried out twice, the rectangular section below the inverted T-shaped section and positioned on the cushion layer 2 is firstly constructed, then the rectangular section above the inverted T-shaped section and positioned on the protective layer 3 is constructed according to the field condition, and other construction methods are the same as the first step.

The above-mentioned parts not described in detail are prior art.

Claims

1. The utility model provides a prevent unrestrained core wall structure that passes through sand for throwing in stone slope dyke, it includes dyke heart stone (1), bed course (2), surface course (3), riprap arris body (4) and protects end (5), dyke heart stone (1) upper surface laid bed course (2), bed course (2) upper surface laid surface course (3), the both sides of dyke heart stone (1) all be even as an organic whole with end (5), its characterized in that: the middle of the cushion layer (2) is provided with a core wall (6).

2. The wave-penetration and sand-penetration preventing core wall structure for the riprap slope dike according to claim 1, wherein: when the core wall (6) is in an inverted T shape, the core wall (6) is positioned in the cushion layer (2) and the facing layer (3) at the top of the dyke core stone (1), the short side of the core wall (6) is positioned in the cushion layer (2), and the long side of the core wall is positioned in the facing layer (3).

3. A wave penetration and sand penetration preventing core wall structure for use in a riprap slope embankment according to claim 1 or 2, wherein: the thickness of the core wall (6) in the cushion layer (2) is consistent with that of the cushion layer (2), and the thickness of the core wall (6) in the facing layer (3) is consistent with that of the facing layer (3).