A narrow space multi-layer fertilizer groove concrete waterproof structure
Patent Information
- Application Number
- CN202521133251.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-06-05
AI Technical Summary
在城市地下结构施工中，大多数面临施工作业空间受限，地下外墙肥槽范围狭窄的情况，导致常规施工方法受到局限：①施工空间受限，狭窄的肥槽无法满足常规外架体系的搭设需求，使得外墙模板的支设变得困难，进而影响外墙混凝土的浇筑质量；②防水施工难题，在狭窄空间内进行防水层的施工，操作难度大，难以保证防水层的完整性和耐久性，增加了渗漏的风险；③施工效率低下，由于施工条件受限，传统方法往往导致施工进度缓慢，无法满足对工期的要求
该一种狭小空间多层肥槽混凝土防水结构通过设置导墙、肥槽混凝土和地下外墙，与传统有限空间内地下室外墙防水施工相比，本发明采用肥槽混凝土结构与防水同时施工，并通过工艺改善与与材料的优选，使施工操作更加简便，能够促进加快施工进度，施工材料均为常见建筑材料，施工成本也得到进一步下降，具有很强的实用性，施工质量更易得到保证并有效避免地下室外墙渗水现象的发生。
Smart Images
Figure CN224692729U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction technology, and in particular to a multi-layered trench concrete waterproof structure for confined spaces. Background Technology
[0002] With the acceleration of urbanization, the problem of land scarcity is becoming increasingly prominent, and the density of buildings is increasing. In urban underground structure construction, most projects face limited working space and narrow trenches for underground exterior walls, which limits conventional construction methods: ① Limited working space: Narrow trenches cannot meet the requirements of conventional scaffolding systems, making the erection of exterior wall formwork difficult and affecting the quality of concrete pouring; ② Waterproofing challenges: Applying waterproofing layers in confined spaces is difficult, making it hard to guarantee the integrity and durability of the waterproofing layer and increasing the risk of leakage; ③ Low construction efficiency: Due to limited construction conditions, traditional methods often result in slow construction progress, failing to meet schedule requirements. Utility Model Content
[0003] This application proposes a multi-layered, trench-type concrete waterproof structure for confined spaces to address the problems mentioned in the background art.
[0004] To achieve the above objectives, this application adopts the following technical solution: A multi-layered trench concrete waterproof structure for confined spaces includes a guide wall and an underground exterior wall. Trench concrete is provided between the guide wall and the underground exterior wall. A first waterproof coating layer is applied to one side of the guide wall. A first additional waterproof layer and a rigid waterproof protective layer are sequentially attached to the surface of the first waterproof coating layer. A second waterproof coating layer (9) is provided on the side of the trench concrete near the guide wall. A mortar protective layer is provided on the surface of the second waterproof coating layer (9). A reserved groove (8) is provided on the side of the trench concrete near the guide wall (1). The second waterproof coating layer (9) covers the inner wall of the reserved groove. A second additional waterproof layer is provided at the corner of the reserved groove. Cement mortar rounded corner plaster is provided between the top of the trench concrete and the underground exterior wall. A first reserved waterproof layer is provided between the underground exterior wall and the guide wall. The first reserved waterproof layer covers the cement mortar rounded corner plaster and extends to the top of the trench concrete. A second reserved waterproof layer is provided on the top of the underground exterior wall. The second reserved waterproof layer covers the first reserved waterproof layer.
[0005] By adopting the above technical solution, during the waterproofing construction of the guide wall, the first waterproof coating layer is first applied to the base, and then the first additional waterproof layer and the rigid waterproof protective layer are attached. After the structural strength of the concrete in the groove reaches the standard, the formwork is removed, and the waterproof layer is constructed on its inner wall. First, the second waterproof coating layer is applied, which is made of polyurethane waterproof coating, and then the mortar protective layer is constructed. The reserved groove is constructed using the settlement joint method. The inside of the reserved groove is filled with the second waterproof coating layer, and the second additional waterproof layer is set at the corners of the reserved groove.
[0006] In a preferred embodiment, the trough concrete includes pre-cast concrete and post-cast concrete, with a construction joint between the pre-cast concrete and the post-cast concrete. A water-stop steel plate is placed at the end face of the pre-cast concrete, and a second waterproof coating layer is provided on the surface of the construction joint of the post-cast concrete. A second additional waterproof layer is provided inside the construction joint.
[0007] By adopting the above technical solution, distributed construction can be achieved by pouring concrete sequentially in a relatively small trough area. Water-stop steel plates, a second waterproof coating layer, and a second additional waterproof layer are installed between the two concrete structures, thereby improving the waterproof effect of the trough concrete.
[0008] In a preferred embodiment, the thickness of the first waterproof coating layer is 2mm, the thickness of the second waterproof coating layer is at least 1mm, the first and second waterproof additional layers are both made of waterproof roll material with a width of not less than 500mm and a flat surface of 250mm each, the thickness of the first waterproof coating layer is 2mm, the thickness of the mortar protective layer is 3mm, and the radius of the cement mortar rounded corner plaster is 50mm.
[0009] By adopting the above technical solution, the materials are simple to obtain. Through the optimization of construction technology and materials, the construction operation is made more convenient. Waterproof membranes and mortars are common building materials, and the construction cost is further reduced, making it highly practical.
[0010] In a preferred embodiment, the gap inside the reserved groove is filled with PE rods.
[0011] By adopting the above technical solution, filling the gaps with PE rods can further improve the waterproof effect of the reserved grooves.
[0012] In a preferred embodiment, the first waterproof additional layer extends to the top of the guide wall to form a first stubble, and the first reserved waterproof layer extends to the top of the concrete trough to reserve a second stubble.
[0013] By adopting the above technical solution, the first waterproof additional layer extends upward to form a first stub for easy subsequent construction, and the first reserved waterproof layer extends to the top height of the concrete trench to reserve a second stub for easy subsequent construction.
[0014] In a preferred embodiment, the ends of the first and second reserved waterproof layers are pressed together with a metal strip, which is fixed to the top of the concrete trough with cement nails.
[0015] By adopting the above technical solution, the rolls of the first and second reserved waterproof layers can be fixed to prevent them from curling up during use, which would affect the waterproof effect.
[0016] The beneficial effects of this application are: This invention relates to a multi-layered trench concrete waterproofing structure for confined spaces. By setting up guide walls, trench concrete, and underground exterior walls, this invention combines trench concrete structure with waterproofing during construction, unlike traditional waterproofing construction of basement exterior walls in limited spaces. Through process improvements and material optimization, the construction operation is simplified, accelerating the construction progress. The construction materials are all common building materials, further reducing construction costs. It has strong practicality, ensures better construction quality, and effectively prevents water seepage in basement exterior walls. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the waterproofing construction of the guide wall in this application; Figure 2 This is a schematic diagram of the construction of the waterproofing and protective layer of the concrete trough in this application; Figure 3 This is a schematic diagram of the waterproofing structure of the construction joint inside the concrete trough in this application; Figure 4 This is a schematic diagram of the waterproof joint structure at the top of the concrete trough in this application.
[0018] Numbered in the diagram: 1. Guide wall; 2. Underground exterior wall; 3. Groove concrete; 31. Pre-poured concrete; 32. Post-poured concrete; 33. Water-stop steel plate; 4. First additional waterproof layer; 5. Rigid waterproof protective layer; 6. First waterproof coating layer; 7. Mortar protective layer; 8. Reserved groove; 9. Second waterproof coating layer; 10. Second additional waterproof layer; 11. Cement mortar rounded corner plaster; 12. First reserved waterproof layer; 13. Second reserved waterproof layer; 14. Metal strip; 15. Cement nail; 16. PE rod. Detailed Implementation
[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0020] Reference Figures 1-4 A multi-layered waterproof concrete trench structure for confined spaces includes a guide wall 1 and an underground exterior wall 2. A trench concrete 3 is provided between the guide wall 1 and the underground exterior wall 2. A first waterproof coating layer 6 is applied to one side of the guide wall 1. A first additional waterproof layer 4 and a rigid waterproof protective layer 5 are sequentially attached to the surface of the first waterproof coating layer. A second waterproof coating layer 9 is provided on the side of the trench concrete 3 closest to the guide wall 1. A mortar protective layer 7 is provided on the surface of the second waterproof coating layer 9. A reserved groove 8 is formed on the side of the trench concrete 3 closest to the guide wall 1. The second waterproof coating layer 9 covers the inner wall of the reserved groove 8. A second additional waterproof layer 10 is provided at the corners of the reserved groove 8. A cement mortar rounded corner plaster 11 is provided between the top of the trench concrete 3 and the underground exterior wall. A trench is provided between the underground exterior wall 2 and the guide wall 1. The first reserved waterproof layer 12 covers the cement mortar rounded corner plaster 11 and extends to the top of the trench concrete 3. The top of the underground exterior wall 2 is provided with a second reserved waterproof layer 13, which covers the first reserved waterproof layer 12. During the waterproofing construction of the guide wall 1, the first waterproof coating layer 6 is first applied to the base, and then the first additional waterproof layer 4 and the rigid waterproof protective layer 5 are attached. After the structural strength of the trench concrete 3 reaches the standard, the formwork is removed, and the waterproof layer is constructed on its inner wall. First, the second waterproof coating layer 9 is applied, which is made of polyurethane waterproof coating, and then the mortar protective layer 7 is constructed. The reserved groove 8 is constructed using the settlement joint method. The interior of the reserved groove 8 is fully coated with the second waterproof coating layer 9, and the corners of the reserved groove 8 are provided with a second additional waterproof layer 10.
[0021] Reference Figure 3 The trough concrete 3 includes pre-poured concrete 31 and post-poured concrete 32, with a construction joint between them. A water-stop steel plate 33 is placed at the end face of the pre-poured concrete 31, and a second waterproof coating layer 9 is provided on the surface of the construction joint of the post-poured concrete 32. A second waterproof additional layer 10 is provided inside the construction joint. In the relatively small trough area, distributed construction is achieved by pouring concrete sequentially, and the water-stop steel plate 33, the second waterproof coating layer 9, and the second waterproof additional layer 10 are set between the two concrete structures, thereby improving the waterproof effect of the trough concrete 3.
[0022] Reference Figure 1 , Figure 2 and Figure 3The thickness of the first waterproof coating layer 6 is 2mm, the thickness of the second waterproof coating layer 9 is at least 1mm, the first waterproof additional layer 4 and the second waterproof additional layer 10 both use waterproof membrane with a width of not less than 500mm and a thickness of 250mm on both the horizontal and vertical surfaces, the thickness of the mortar protective layer is 3mm, and the radius of the cement mortar rounded corner plaster 11 is 50mm. The materials are simple to obtain. Through the optimization of construction technology and materials, the construction operation is made more convenient. The waterproof membrane and mortar and other construction materials are all common building materials, and the construction cost is further reduced, which has strong practicality.
[0023] Reference Figure 2 The gap inside the reserved groove 8 is filled with PE rods 16. Filling the gap with PE rods can further improve the waterproof effect of the reserved groove 8.
[0024] Reference Figure 1 and Figure 4 The first waterproof additional layer 4 extends to the top of the guide wall 1 to form the first stubble, and the first reserved waterproof layer 12 extends to the top of the concrete trough 3 to reserve the second stubble. The first waterproof additional layer 4 extends upward to form the first stubble to facilitate subsequent construction, and the first reserved waterproof layer 12 extends to the top of the concrete trough 3 to reserve the second stubble to facilitate subsequent construction.
[0025] Reference Figure 4 The roll ends of the first reserved waterproof layer 12 and the second reserved waterproof layer 13 are pressed together by a metal strip 14. The metal strip 14 is fixed to the top of the trough concrete 3 by cement nails 15. This can fix the rolls of the first reserved waterproof layer 12 and the second reserved waterproof layer 13 to prevent them from curling up during use, which would affect the waterproof effect.
[0026] Working principle: During the waterproofing construction of guide wall 1, firstly, a first waterproof coating layer 6 is applied to the base, then a first additional waterproof layer 4 and a rigid waterproof protective layer 5 are attached. The first reserved waterproof layer 12 extends to the top of the groove concrete 3, leaving a second stub. After the structural strength of the groove concrete 3 reaches the standard, the formwork is removed, and the waterproof layer is constructed on its inner wall. First, a second waterproof coating layer 9, made of polyurethane waterproof coating, is applied, followed by a mortar protective layer 7. The reserved groove 8 is constructed using the settlement joint method, with the interior of the reserved groove 8 fully coated with the second waterproof coating layer 9. A second additional waterproof layer 10 is set at the corners of the reserved groove 8. The first concrete 31 is left with... Before pouring the concrete at section 32, a second waterproof coating layer 9 with a thickness of not less than 1 mm is applied to the surface of the construction joint. After the concrete is poured, a second additional waterproof layer 10 with a width of not less than 500 mm (250 mm on each side) is set at the construction joint. Then, normal waterproof layer construction is carried out. When the waterproof treatment of the top of the underground exterior wall 2 is carried out to the top of the underground exterior wall 2, the second reserved waterproof layer 13 extends downward from the top and overlaps. When the second reserved waterproof layer 13 on the side of the underground exterior wall 2 is constructed to the top of the top of the trough concrete 3 structure, a second stub is reserved. Cement mortar rounded corner plaster 11 with a radius of 50 mm is set on the top of the trough concrete 3 structure. The second reserved waterproof layer 13 covers the cement mortar rounded corner plaster 11 extending to the top of the trough concrete 3. The second reserved waterproof layer 13 on the top of the underground exterior wall 2 covers the extension section of the first reserved waterproof layer 12 on the side wall. The roll material is pressed tightly with metal strip 14 and fixed with cement nail 15.
[0027] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.
Claims
1. A multi-layered, waterproof concrete structure for confined spaces, comprising a guide wall (1) and an underground exterior wall (2), characterized in that, A grooved concrete (3) is provided between the guide wall (1) and the underground outer wall (2). A first waterproof coating layer (6) is applied to one side of the guide wall (1). A first waterproof additional layer (4) and a rigid waterproof protective layer (5) are sequentially attached to the surface of the first waterproof coating layer (6). A second waterproof coating layer (9) is provided on the side of the grooved concrete (3) near the guide wall (1). A mortar protective layer (7) is provided on the surface of the second waterproof coating layer (9). A reserved groove (8) is opened on the side of the grooved concrete (3) near the guide wall (1). The second waterproof coating layer (9) covers the groove. The inner wall of the reserved groove (8) is provided with a second waterproof additional layer (10) at the corner of the reserved groove (8). Cement mortar rounded corner plaster (11) is provided between the top of the trough concrete (3) and the underground outer wall. A first reserved waterproof layer (12) is provided between the underground outer wall (2) and the guide wall (1). The first reserved waterproof layer (12) covers the cement mortar rounded corner plaster (11) and extends to the top of the trough concrete (3). A second reserved waterproof layer (13) is provided at the top of the underground outer wall (2). The second reserved waterproof layer (13) covers the first reserved waterproof layer (12).
2. The multi-layered trench concrete waterproof structure for confined spaces according to claim 1, characterized in that, The trough concrete (3) includes pre-cast concrete (31) and post-cast concrete (32), with a construction joint between the pre-cast concrete (31) and the post-cast concrete (32). A water-stop steel plate (33) is placed at the end face of the pre-cast concrete (31), and the post-cast concrete (32) has a second waterproof coating layer (9) on the surface of the construction joint. The construction joint has a second waterproof additional layer (10).
3. The multi-layered trench concrete waterproof structure for confined spaces according to claim 2, characterized in that, The thickness of the first waterproof coating layer (6) is 2mm, the thickness of the second waterproof coating layer (9) is at least 1mm, the first waterproof additional layer (4) and the second waterproof additional layer (10) are both made of waterproof roll material with a width of not less than 500mm and a flat surface of 250mm, the thickness of the mortar protective layer (7) is 3mm, and the radius of the cement mortar rounded corner plaster (11) is 50mm.
4. The multi-layered trench concrete waterproof structure for confined spaces according to claim 1, characterized in that, The gap inside the reserved groove (8) is filled with PE rods.
5. The multi-layered trench concrete waterproof structure for confined spaces according to claim 1, characterized in that, The first waterproof additional layer (4) extends to the top of the guide wall (1) to form a first stubble, and the first reserved waterproof layer (12) extends to the top of the trough concrete (3) to reserve a second stubble.
6. The multi-layered trench concrete waterproof structure for confined spaces according to claim 1, characterized in that, The roll ends of the first reserved waterproof layer (12) and the second reserved waterproof layer (13) are pressed together by a metal strip (14), which is fixed to the top of the trough concrete (3) by a cement nail (15).