A freezing and thawing resistant reinforcing structure for a building foundation in a cold region with frozen soil
Patent Information
- Application Number
- CN202522482153.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-24
AI Technical Summary
[0002]在寒地冻土区，由于冬季漫长且气温极低，土壤中的水分在冻结过程中体积膨胀，而在融化过程中体积收缩，这种反复的冻融作用会对建筑地基造成严重的破坏，导致地基沉降、开裂等问题，进而影响建筑物的稳定性和安全性
[0007]与现有技术相比，本实用新型具有以下优点：本实用新型优化了寒冷地区建筑地基抗冻融加固结构的设置，改进为一种增强抗冻融性能、提升地基稳定性的加固结构，有效阻隔外界冷热交替对地基的直接影响，减少冻融循环造成的表层破坏，橡胶颗粒铺层，不仅起到缓冲作用，还能在冻融过程中吸收部分膨胀应力，减少应力集中而开裂，分离基层板和地基桩的设计，增强了整体结构的抗变形能力，整体结构通过多层材料的复合作用，提升寒地冻土区建筑地基的抗冻融能力，延长了建筑物的使用寿命，保障了建筑物的稳定性和安全性。
Smart Images
Figure CN224784957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering, and in particular to a freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions. Background Technology
[0002] In cold, permafrost regions, the long winters and extremely low temperatures cause soil moisture to expand during freezing and shrink during thawing. This repeated freeze-thaw cycle severely damages building foundations, leading to settlement, cracking, and other problems, ultimately affecting the stability and safety of buildings. Traditional foundation reinforcement methods are often ineffective in addressing the unique environment of cold, permafrost regions, failing to effectively resist the damage caused by freeze-thaw cycles. Therefore, a freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions is designed. Utility Model Content
[0003] The purpose of this utility model is to provide a freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions to solve the aforementioned technical problems. To achieve the above objective, this utility model adopts the following technical solution: A freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions includes a surface isolation layer, a rigid constraint layer, a foundation surface layer, a bottom isolation cushion layer, and foundation piles. The surface isolation layer is laid on the upper side of the rigid constraint layer, the foundation surface layer is placed on the lower side of the rigid constraint layer, and the bottom isolation cushion layer is laid on the lower side of the foundation surface layer. Several groups of foundation piles are arranged at equal intervals on the lower side of the foundation surface layer, and the foundation piles are cast and fixed to the foundation surface layer.
[0004] Based on the above technical solution, a rubber particle layer is provided between the rigid constraint layer and the foundation surface layer, and a rubber particle layer and a film layer are provided between the foundation surface layer and the bottom isolation layer. The film layer covers the upper side of the rubber particle layer, and the foundation pile passes through the bottom isolation layer, the foundation pile, the rubber particle layer, and the film layer.
[0005] Based on the above technical solution, the foundation surface layer is composed of multiple sets of separate base plates, which are arranged in parallel. The foundation pile is composed of a foundation column and a rubber sleeve. The foundation pile is integrally cast with the separate base plate, and the rubber sleeve covers the outside of the foundation pile.
[0006] Based on the above technical solution, the rubber sheath and rubber granule layup are both made of rubber material, the film layer is made of polyethylene film material, the bottom isolation pad layer is sand and gravel paving material, the rigid constraint layer, the separation base plate and the foundation column are all made of reinforced concrete material, the surface isolation layer is made of XPS extruded board, and the surface isolation layer is set with staggered splicing.
[0007] Compared with the prior art, this utility model has the following advantages: This utility model optimizes the setting of the freeze-thaw resistance reinforcement structure for building foundations in cold regions, and improves it into a reinforcement structure that enhances freeze-thaw resistance and improves foundation stability. It effectively blocks the direct impact of external hot and cold alternation on the foundation, reduces surface damage caused by freeze-thaw cycles, and the rubber particle layer not only plays a buffering role, but also absorbs some expansion stress during the freeze-thaw process, reducing stress concentration and cracking. The design of separating the base plate and foundation piles enhances the deformation resistance of the overall structure. Through the composite effect of multiple materials, the overall structure improves the freeze-thaw resistance of building foundations in cold permafrost regions, extends the service life of buildings, and ensures the stability and safety of buildings. Attached Figure Description
[0008] Figure 1 This is a general appearance diagram of the present utility model.
[0009] Figure 2 This is a schematic diagram showing the disassembled structure of this utility model.
[0010] Figure 3 This is a schematic diagram of the foundation surface and foundation piles of this utility model.
[0011] Figure 4 This is an exploded view of the foundation pile of this utility model.
[0012] In the diagram: 1. Surface isolation layer; 2. Rigid constraint layer; 3. Foundation surface layer; 4. Bottom isolation cushion layer; 5. Foundation pile; 6. Rubber granule layer; 7. Covering layer; 8. Separation base plate; 9. Rubber sheath; 10. Foundation column. Detailed Implementation
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] A freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions includes a surface isolation layer 1, a rigid constraint layer 2, a foundation surface layer 3, a bottom isolation cushion layer 4, and foundation piles 5. The surface isolation layer 1 is laid on the upper side of the rigid constraint layer 2, the foundation surface layer 3 is located on the lower side of the rigid constraint layer 2, the bottom isolation cushion layer 4 is laid on the bottom side of the foundation surface layer 3, and several groups of foundation piles 5 are arranged at equal intervals on the bottom side of the foundation surface layer 3, and the foundation piles 5 are cast and fixed to the foundation surface layer 3.
[0015] A rubber particle layer 6 is provided between the rigid constraint layer 2 and the foundation surface layer 3. A rubber particle layer 6 and a film layer 7 are provided between the foundation surface layer 3 and the bottom isolation layer 4. The film layer 7 covers the upper side of the rubber particle layer 6. The foundation pile 5 passes through the bottom isolation layer 4, the foundation pile 5, the rubber particle layer 6, and the film layer 7.
[0016] The foundation surface layer 3 is composed of multiple sets of separate base plates 8, which are arranged in parallel. The foundation pile 5 is composed of a foundation column 10 and a rubber sleeve 9. The foundation pile 5 is integrally cast with the separate base plate 8, and the rubber sleeve 9 covers the outside of the foundation pile 5.
[0017] The rubber sheath 9 and the rubber granule layer 6 are both made of rubber material. The film layer 7 is made of polyethylene film material. The bottom isolation pad layer 4 is sand and gravel paving material. The rigid constraint layer 2, the separation base plate 8, and the foundation column 10 are all made of reinforced concrete material. The surface isolation layer 1 is made of XPS extruded board, and the surface isolation layer 1 is set with staggered splicing.
[0018] In practical application, the working principle of this reinforcement structure is as follows: In cold, permafrost regions, when winter arrives and temperatures drop, the surface isolation layer 1, with its excellent thermal insulation properties, effectively blocks the cold air from the outside, reduces heat loss, and slows down the rate and magnitude of temperature drop in the foundation surface. The rigid constraint layer 2 restricts the deformation of the foundation surface, preventing excessive displacement during frost heave. The rubber granule layer 6, with its good elasticity, acts as a buffer when temperature changes cause volume changes in the foundation material, absorbing some of the expansion stress and preventing stress concentration in a certain part of the foundation, thereby reducing cracking. The membrane layer 7 further enhances the waterproof and thermal insulation effects, preventing moisture from penetrating into the foundation while reducing the impact of external temperature on the foundation. The bottom isolation layer 4, as a transition layer between the foundation and the underlying permafrost, uses a sand and gravel structure to disperse the pressure transmitted from the foundation and, to some extent, adapt to the freeze-thaw deformation of the permafrost. The design of the separated base plates 8 allows for a certain relative displacement between the base plates when the foundation surface is subjected to freeze-thaw action, releasing some stress and preventing overall cracking. The foundation piles are driven deep into stable soil layers, providing solid support for the entire foundation. Rubber sheaths 9 cover the outside of the foundation piles, reducing friction between the piles and the surrounding soil during freeze-thaw cycles and absorbing some stress, preventing damage to the piles 10 due to frost heave or thaw settlement. Through the synergistic effect of these various structural layers and components, the freeze-thaw resistance of building foundations in cold, permafrost regions is effectively improved, extending the service life of buildings and ensuring their stability and safety.
[0019] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.
Claims
1. A freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions, characterized in that, It includes a surface isolation layer (1), a rigid constraint layer (2), a foundation surface layer (3), a bottom isolation cushion layer (4), and foundation piles (5). The surface isolation layer (1) is laid on the upper side of the rigid constraint layer (2), the foundation surface layer (3) is set on the lower side of the rigid constraint layer (2), the bottom isolation cushion layer (4) is laid on the bottom side of the foundation surface layer (3), and several sets of foundation piles (5) are arranged at equal intervals on the bottom side of the foundation surface layer (3). The foundation piles (5) are cast and fixed to the foundation surface layer (3).
2. The freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions according to claim 1, characterized in that, A rubber particle layer (6) is provided between the rigid constraint layer (2) and the foundation surface layer (3). A rubber particle layer (6) and a film layer (7) are provided between the foundation surface layer (3) and the bottom isolation layer (4). The film layer (7) covers the upper side of the rubber particle layer (6). The foundation pile (5) passes through the bottom isolation layer (4), the foundation pile (5), the rubber particle layer (6), and the film layer (7).
3. The freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions according to claim 2, characterized in that, The foundation surface layer (3) is composed of multiple sets of separate base plates (8), which are arranged in parallel. The foundation pile (5) is composed of a foundation column (10) and a rubber sleeve (9). The foundation pile (5) is integrally cast with the separate base plate (8), and the rubber sleeve (9) covers the outside of the foundation pile (5).
4. The freeze-thaw resistant reinforcement structure for building foundations in cold, permafrost regions according to claim 3, characterized in that, The rubber sheath (9) and rubber granule lay-up (6) are both made of rubber material. The film layer (7) is made of polyethylene film material. The bottom isolation pad layer (4) is made of sand and gravel. The rigid constraint layer (2), the separation base plate (8), and the foundation column (10) are all made of reinforced concrete material. The surface isolation layer (1) is made of XPS extruded board and the surface isolation layer (1) is set with staggered splicing.