A seepage-proof reinforcing structure of a masonry retaining wall
By introducing a composite structure of steel mesh, ring-shaped reinforcing bars, and anti-seepage coating layer into masonry water-retaining structures, combined with polymer-modified cement mortar and cement-based penetrating crystallizing materials, the seepage prevention problem of masonry water-retaining structures is solved, achieving a highly efficient self-healing seepage prevention effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN SECOND CITY PLANNING ENG CO
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-09
AI Technical Summary
Existing masonry water-retaining structures lack sufficient impact and deformation resistance, making them prone to cracking and leakage, a problem that current technologies struggle to effectively address.
A composite structure consisting of steel mesh, ring-shaped reinforcing bars, concrete panels, and an impermeable coating layer is adopted, combined with polymer-modified cement mortar and cement-based penetrating crystallizing materials, to form a synergistic system of rigid support and flexible impermeability, enhancing shear resistance and achieving self-healing.
It significantly improves the impermeability and overall stability of masonry water-retaining structures, reduces the incidence of cracks, and reduces maintenance costs through self-healing functions.
Smart Images

Figure CN224338160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-seepage reinforcement structure technology, specifically an anti-seepage reinforcement structure for masonry water-retaining buildings. Background Technology
[0002] Masonry water-retaining structures are engineering structures built using stones or masonry materials. They are mainly used to block, guide, or regulate water flow, prevent soil erosion, and protect riverbanks, farmland, roads, or other facilities from water erosion or submersion. The seepage prevention and reinforcement structure of masonry water-retaining structures is a structure that enhances its seepage resistance and overall stability through materials, construction, and construction techniques.
[0003] In existing technologies, masonry retaining walls are typically constructed by manually or mechanically stacking stones and using mortar to fill the gaps between the stones to enhance their integrity and stability. The overall structure is formed by the weight of the stones, their interlocking arrangement, and the mortar. However, in actual use, the stones are only bonded together by friction and mortar, resulting in lower impact and deformation resistance compared to concrete structures. This makes them prone to cracking and leakage. Therefore, it is necessary to develop a new seepage prevention and reinforcement structure for masonry retaining walls to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a seepage-proof reinforcement structure for masonry water-retaining buildings to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a seepage-proof reinforcement structure for a masonry water-retaining building, comprising a masonry wall, a steel mesh provided on the outside of the masonry wall, annular reinforcing bars provided on the inside of the masonry wall, pre-embedded bars fixedly installed at the bottom of the annular reinforcing bars, connecting reinforcing bars provided on the inner side of the annular reinforcing bars, a concrete panel provided on the outside of the steel mesh, pre-embedded cast steel bars provided inside the concrete panel, and a seepage-proof coating layer provided on the left side of the concrete panel.
[0006] Preferably, the masonry wall is composed of granite with a compressive strength ≥40MPa and polymer-modified cement mortar, and the polymer-modified cement mortar contains added latex powder.
[0007] Preferably, the granite in the masonry wall is laid with staggered joints between upper and lower layers, and the staggered joint length is ≥15cm.
[0008] Preferably, the exposed surface of the steel mesh is filled with 1:1 cement mortar to form recesses with a depth of ≥2cm, and the surface of the cement mortar is coated with a two-component polyurethane waterproof coating to form a continuous film layer.
[0009] Preferably, the steel mesh is made of HPB300 grade steel bars with a mesh size of 150mm×150mm and a steel bar diameter of 8mm, and the intersections are welded and fixed.
[0010] Preferably, the thickness of the concrete panel is 15-30cm, and it is connected to the masonry wall by anchor rods to form a composite structure.
[0011] Preferably, the annular reinforcing bar is a closed frame, using HRB400 grade steel bars, and each layer of annular reinforcing bars is anchored into the foundation layer through pre-embedded bars, and the annular reinforcing bars and connecting reinforcing bars are fixed together by binding.
[0012] Preferably, the waterproof coating layer is applied to the water-facing side of the concrete panel, and a cement-based penetrating crystalline coating with a thickness of 1.0 mm is used as the base layer, and a quick-setting rubber asphalt waterproof coating with a thickness of 2.0 mm is applied to the surface.
[0013] Compared with the prior art, this utility model provides a seepage-proof reinforcement structure for masonry water-retaining buildings, which has the following beneficial effects:
[0014] 1. The anti-seepage reinforcement structure of this masonry water-retaining structure forms a synergistic system of rigid support and flexible anti-seepage through the composite structure of masonry wall, concrete panel and anti-seepage coating layer, which significantly improves impermeability and overall stability. The anchoring system of ring reinforcing bars, pre-embedded bars and connecting reinforcing bars and pre-embedded cast steel bars enhances the shear resistance of the wall, avoids cracks caused by impact and deformation, and reduces the probability of cracks appearing in the masonry water-retaining wall.
[0015] 2. The anti-seepage reinforcement structure of this masonry water-retaining building uses cement-based penetrating crystallizing material to seal micro-cracks in the concrete through chemical reaction, achieving self-repairing anti-seepage. When the concrete panel and anti-seepage coating layer are partially damaged, they can be quickly repaired by directional grouting or coating repair without demolishing the masonry wall, thus reducing maintenance costs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the external structure of this utility model;
[0019] Figure 3This is a schematic diagram of the annular reinforcing rib and its connection structure of the present invention.
[0020] In the diagram: 1. Masonry wall; 2. Steel mesh; 3. Circular reinforcing bar; 4. Embedded reinforcing bar; 5. Connecting reinforcing bar; 6. Concrete panel; 7. Embedded cast steel bars; 8. Anti-seepage coating layer. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] Example:
[0024] Please see Figure 1-3 This utility model provides a technical solution: a seepage-proof reinforcement structure for a masonry water-retaining building, including a masonry wall 1, a steel mesh 2 on the outside of the masonry wall 1, annular reinforcing bars 3 on the inside of the masonry wall 1, a pre-embedded bar 4 fixedly installed at the bottom of the annular reinforcing bar 3, a connecting reinforcing bar 5 on the inside of the annular reinforcing bar 3, a concrete panel 6 on the outside of the steel mesh 2, pre-embedded cast steel bars 7 on the inside of the concrete panel 6, and a seepage-proof coating layer 8 on the left side of the concrete panel 6.
[0025] Furthermore, the masonry wall 1 is composed of granite with a compressive strength ≥40MPa and polymer-modified cement mortar, and latex powder is added inside the polymer-modified cement mortar. The combination of high-strength granite and latex powder modified mortar can improve the compressive strength of the masonry wall 1, improve the mortar bonding force, effectively seal the gaps in the stone, and reduce the permeability coefficient.
[0026] Furthermore, the granite in the masonry wall 1 is laid with staggered joints between the upper and lower layers, with a staggered joint length of ≥15cm. The staggered joint construction avoids the formation of leakage channels by vertical through joints, improves the integrity of the wall, disperses external load stress, and reduces the risk of local cracking.
[0027] Furthermore, the exposed surface of the steel mesh 2 is filled with 1:1 cement mortar to form recesses with a depth of ≥2cm. The surface of the cement mortar is coated with a two-component polyurethane waterproof coating to form a continuous film. The double sealing of the recesses and the polyurethane coating blocks the water vapor penetration path and provides corrosion protection for the steel mesh 2, extending the service life of the structure.
[0028] Furthermore, the steel mesh 2 uses HPB300 grade steel bars with a mesh size of 150mm×150mm and a steel bar diameter of 8mm. The intersections are welded and fixed. The standardized mesh and welding process ensure that the steel mesh 2 is evenly stressed, improves tensile strength, and inhibits cracking and deformation on the surface of the masonry wall 1.
[0029] Furthermore, the thickness of the concrete panel 6 is 15-30cm, and it is connected to the masonry wall 1 through anchor rods to form a composite structure. The concrete panel 6 forms a rigid connection with the masonry wall 1 through anchor rods, which distributes water pressure, reduces the internal stress of the masonry wall, and adapts to high water level impact conditions.
[0030] Furthermore, the annular reinforcing bar 3 is a closed frame, using HRB400 grade steel bars. Each layer of annular reinforcing bars 3 is anchored into the foundation layer through pre-embedded bars 4, and the annular reinforcing bars 3 and connecting reinforcing bars 5 are fixed by binding. The closed annular frame and the foundation anchorage form a spatial truss system, which improves the shear bearing capacity and prevents the wall from overturning or sliding due to earth pressure.
[0031] Furthermore, the waterproof coating layer 8 is applied to the water-facing side of the concrete panel 6, and uses a cement-based penetrating crystalline coating as the base layer with a thickness of 1.0 mm. The surface layer is coated with a sprayed quick-setting rubber asphalt waterproof coating with a thickness of 2.0 mm. The cement-based penetrating crystalline material at the base layer and the quick-setting rubber asphalt on the surface layer can form a dual mechanism of self-repair and elastic buffering, which improves the resistance to ultraviolet rays and freeze-thaw cycles and extends the service life. At the same time, local damage to the concrete panel 6 and the waterproof coating layer 8 can be quickly repaired by directional grouting or coating repair without demolishing the masonry wall, thus reducing maintenance costs.
[0032] In actual operation, when this device is used, the composite structure of the masonry wall 1, concrete panel 6, and anti-seepage coating layer 8 forms a synergistic system of rigid support and flexible anti-seepage, significantly improving impermeability and overall stability. The anchoring system of ring reinforcing bars 3, embedded bars 4, connecting reinforcing bars 5, and embedded cast steel bars 7 enhances the shear resistance of the wall, avoids cracks caused by impact and deformation, and reduces the probability of cracks appearing in the masonry retaining wall. The cement-based penetrating crystallizing material is used to seal micro-cracks in the concrete through chemical reaction, achieving self-healing anti-seepage. When the concrete panel 6 and anti-seepage coating layer 8 are partially damaged, they can be quickly repaired by directional grouting or coating repair without demolishing the masonry wall, reducing maintenance costs.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A seepage-proof reinforcement structure for a masonry water-retaining building, comprising a masonry wall (1), characterized in that: The masonry wall (1) is provided with a steel mesh (2) on the outside and a ring-shaped reinforcing bar (3) on the inside. The bottom of the ring-shaped reinforcing bar (3) is fixedly installed with a pre-embedded bar (4). The inner side of the ring-shaped reinforcing bar (3) is provided with a connecting reinforcing bar (5). The steel mesh (2) is provided with a concrete panel (6) on the outside. The concrete panel (6) is provided with a pre-embedded cast steel bar (7) on the inside. The left side of the concrete panel (6) is provided with an anti-seepage coating layer (8).
2. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The masonry wall (1) is composed of granite with a compressive strength ≥40MPa and polymer-modified cement mortar, and latex powder is added inside the polymer-modified cement mortar.
3. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 2, characterized in that: The granite in the masonry wall (1) is laid with staggered joints between the upper and lower layers, with a staggered joint length of ≥15cm.
4. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The exposed surface of the steel mesh (2) is filled with 1:1 cement mortar to form a concave joint with a depth of ≥2cm, and the cement mortar surface is coated with a two-component polyurethane waterproof coating to form a continuous film layer.
5. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The steel mesh (2) is made of HPB300 grade steel bars with a mesh size of 150mm×150mm and a steel bar diameter of 8mm. The intersections are welded and fixed.
6. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The thickness of the concrete panel (6) is 15-30cm, and it is connected to the masonry wall (1) by anchor rods to form a composite structure.
7. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The annular reinforcing bar (3) is a closed frame, using HRB400 grade steel bars. Each layer of annular reinforcing bars (3) is anchored into the foundation layer through pre-embedded bars (4), and the annular reinforcing bars (3) and connecting reinforcing bars (5) are fixed together by binding.
8. The seepage-proof reinforcement structure of a masonry water-retaining building according to claim 1, characterized in that: The anti-seepage coating layer (8) is set on the water-facing side of the concrete panel (6), and uses cement-based penetrating crystalline coating as the bottom layer with a thickness of 1.0 mm, and the surface is coated with sprayed quick-setting rubber asphalt waterproof coating with a thickness of 2.0 mm.