A concrete armouring element for a coastal sand trap
By using standard reinforced concrete components prefabricated in the factory and assembled on-site, combined with gravel ballast, the problems of low construction efficiency and environmental pollution of coastal sand retaining dams have been solved, achieving a highly efficient and environmentally friendly reinforcement effect.
Patent Information
- Application Number
- CN202522695841.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
The construction of existing coastal sand-retaining dams is affected by sea tides, resulting in low construction efficiency, difficulty in guaranteeing quality, and environmental pollution risks.
The project utilizes prefabricated Z-shaped reinforced concrete standard components, which are then assembled piece by piece on-site to form Z-shaped concrete protective components. Combined with gravel ballast, the components are connected to the original masonry retaining wall to form a new protective structure.
It improved construction efficiency and quality, reduced construction costs, protected the marine environment, and met environmental protection requirements.
Smart Images
Figure CN224931003U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coastal ecological protection technology, specifically a concrete protective component for reinforcing coastal sand-retaining dams. Background Technology
[0002] The reinforcement of a sand-retaining dam in a seaside tourist area is greatly affected by changes in seawater level due to tides. The effective working time each day is short, and organizing construction to catch up with the tides and quickly complete the reinforcement of the dam has become a major challenge.
[0003] In the past, similar construction projects typically relied on understanding tidal changes and, within the workable water level and timeframe, erecting formwork in sections of the existing dam structure, using concrete transport trucks and concrete pump trucks for pouring. This process involved multiple steps, including excavation of the original sand-retaining dam foundation, chiseling sections of the masonry sand-retaining dam, formwork erection, concrete transportation, and concrete pouring. It required the construction of numerous temporary roads, had a long construction period, and was subject to the influence of tides, resulting in low efficiency in cast-in-place sand-retaining dam construction. Furthermore, the concrete was easily affected by rising tides, severely impacting the quality of the finished product. Additionally, the construction process posed a certain risk of marine environmental pollution, contradicting current environmental protection principles for the ocean. Utility Model Content
[0004] To address the above problems, this utility model provides a concrete protective component for reinforcing coastal sand-blocking dams that is easy to operate, improves construction efficiency and quality, and is environmentally friendly and ecologically restorative.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a concrete protective component for reinforcing coastal sand-blocking dams, including a front wall, a rear wall, a wall top, a front toe, and a rear toe. The front toe and the rear toe rest on the ground on the seaward and leeward sides, respectively, and the rear toe is higher than the front toe. The front wall and the rear wall are vertically connected to the front toe and the rear toe, respectively. The front wall and the rear wall are connected by a horizontal wall top. The front wall, the rear wall, the wall top, the front toe, and the rear toe together constitute a block component with a Z-shaped cross section.
[0006] The front toe rests on the sandy base on the seaward side, with the upper part naturally forming a coastline along the shore and covered with 1200-1500mm thick gravel ballast. The rear toe rests on the original masonry retaining wall steps on the leeward side, with the upper part backfilled with 800-1000mm thick gravel ballast along the shore.
[0007] The components are 3-5m long reinforced concrete standard parts prefabricated in the factory and grouted inside; the front wall, back wall and top of each pair of adjacent components are flush and smoothly connected to each other.
[0008] The components are installed sequentially along the outside of the original masonry retaining wall to form a new coastal protection structure. The settlement joints are reserved according to the original location of the masonry retaining wall.
[0009] This utility model proposes a concrete protective component for reinforcing coastal sand retaining walls. Based on the existing masonry sand retaining walls on the beach and considering tidal conditions, transportation, and environmental protection, standard Z-shaped reinforced concrete components are prefabricated in a factory using standardized steel templates. The prefabricated Z-shaped reinforced concrete components are then transported to the site and assembled piece by piece along the original masonry retaining wall line. This utility model, as a reinforcing and protective component for sand retaining walls in seaside tourist areas, offers rapid fabrication, simple operation, ensures construction quality, significantly reduces construction costs, and effectively protects the marine environment. Attached Figure Description
[0010] Figure 1 This is a side sectional view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a side sectional view showing the application effect of this utility model; The diagram includes: front wall 1, rear wall 2, wall top 3, front toe 4, rear toe 5, gravel ballast 6, excavation line 7, natural sand line 8, backfill sand 9, original masonry retaining wall 10, and sand dam positioning axis 11. Detailed Implementation
[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the specific embodiments.
[0012] Example 1
[0013] like Figures 1-2 A concrete protective component for reinforcing coastal sand-blocking dams includes a front wall 1, a rear wall 2, a wall top 3, a front toe 4, and a rear toe 5. The front toe 4 and the rear toe 5 rest on the ground on the seaward and leeward sides, respectively, and the rear toe 5 is higher than the front toe 4. The front wall 1 and the rear wall 2 are vertically connected to the front toe 4 and the rear toe 5, respectively. The front wall 1 and the rear wall 2 are connected by a horizontal wall top 3. The front wall 1, the rear wall 2, the wall top 3, the front toe 4, and the rear toe 5 together form a block component with a Z-shaped cross section.
[0014] The components are 3-5m long reinforced concrete standard parts prefabricated in the factory, with internal grouting treatment. The front toe 4 is 430mm wide, the rear toe 5 is 400mm wide, and the top of the wall is 1000mm wide. The front wall, rear wall, and top of each pair of adjacent components are flush and smoothly connected to each other.
[0015] like Figure 3The front toe 4 rests on the sand base on the seaward side, with the upper part naturally forming a coastline along the shore and covered with a 1200mm thick gravel ballast material 6. The rear toe 5 rests on the original masonry retaining wall steps on the leeward side, with an 800mm thick gravel ballast material 6 backfilled along the shore.
[0016] The components are installed sequentially along the outside of the original masonry retaining wall to form a new coastal protection structure. The settlement joints are reserved according to the original location of the masonry retaining wall.
[0017] Example 2
[0018] The structure and connection relationship of each part of the concrete protective component for reinforcing coastal sand retaining dam described in this embodiment are the same as those in Embodiment 1. The difference is that the upper part of the front toe 4 is covered with a 1350mm thick gravel ballast material 6, and the upper part of the rear toe 5 is covered with a 900mm thick gravel ballast material.
[0019] Example 3
[0020] The structure and connection relationship of each part of the concrete protective component for reinforcing coastal sand retaining dam described in this embodiment are the same as those in Embodiment 1. The difference is that the upper part of the front toe 4 is covered with a 1500mm thick gravel ballast material 6, and the upper part of the rear toe 5 is covered with a 1000mm thick gravel ballast material.
Claims
1. A concrete protective component for reinforcing coastal sand-retaining dams, characterized in that: comprising a front wall (1), a rear wall (2), a wall top (3), a front toe (4) and a rear toe (5), wherein the front toe (4) and the rear toe (5) respectively rest on the ground on the sea-facing side and the land-facing side, the rear toe (5) is higher than the front toe (4), the front wall (1) and the rear wall (2) are vertically connected to the front toe (4) and the rear toe (5) respectively, the front wall (1) and the rear wall (2) are connected via the horizontal wall top (3), and the front wall (1), the rear wall (2), the wall top (3), the front toe (4) and the rear toe (5) jointly form a block member with a pi-shaped cross section.
2. The concrete protective component for reinforcing coastal sand-retaining dams according to claim 1, characterized in that: The front toe (4) rests on the sand foundation on the sea-facing side, the upper part naturally forms a coastline along the shore and is covered with 1200-1500mm thick gravel ballast (6), and the rear toe (5) rests on the step of the original masonry retaining wall on the land-facing side, the upper part is backfilled with 800-1000mm thick gravel ballast (6) along the shore.
3. A concrete protective component for reinforcing coastal sand-retaining dams according to claim 1, characterized in that: The members are standard reinforced concrete members with a length of 3-5m that are prefabricated in a centralized manner in a factory, and the interior is subjected to grouting treatment; the front walls, rear walls and wall tops of every two adjacent members are flush with each other, and the connection between them is smooth.
4. A concrete protective component for reinforcing coastal sand-retaining dams according to any one of claims 1-3, characterized in that: The members are installed in place sequentially along the outside of the original masonry retaining wall to form a new coastal zone protection structure, and the positions of the settlement joints are reserved according to the installation positions of the original masonry retaining wall.