Anti-settlement structure of basement outer pavement layer
By installing a floating slab on the outer side of the basement sidewall and casting a waterproof concrete structure together with the sidewall, the problem of uneven settlement of the ground paving layer outside the basement was solved, thus achieving protection of the waterproof layer and improving the waterproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional basement exterior paving layers are prone to uneven settlement due to inadequate backfilling and compaction, leading to rework and repairs of the paving layer and erosion of the waterproofing layer, thus affecting the waterproofing effect and lifespan.
A cantilever slab is installed on the outer side of the basement sidewall. The cantilever slab and the sidewall are cast together with concrete to form a single unit. A waterproof layer is installed between the cantilever slab and the backfill layer. Polyurethane waterproof coating is applied to the cantilever slab and the sidewall. The backfill soil is liquid solid soil. The concrete cast together with the cantilever slab and the sidewall is waterproof concrete.
It effectively prevented uneven settlement, avoided rework and repairs, protected the waterproof layer of the basement sidewalls, and improved the waterproofing effect and lifespan.
Smart Images
Figure CN224148771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of basement waterproofing technology, and in particular to a basement exterior paving layer anti-settlement structure. Background Technology
[0002] The traditional practice for paving the exterior of basements involves first waterproofing the outer walls of the basement, then backfilling with plain soil, and finally constructing the upper paving layer according to the drawings. This method is highly susceptible to uneven settlement of the subsequent paving layer due to inadequate compaction of the backfill on the basement sidewalls, resulting in on-site rework and repairs. Alternatively, uneven settlement of the paving layer may not occur initially, but will develop over time. This uneven settlement can cause rainwater to seep into the basement sidewalls, eroding and damaging the waterproofing layer. Long-term rainwater erosion and soaking reduce the waterproofing's effectiveness and shorten its lifespan. Utility Model Content
[0003] In order to overcome the problems existing in the prior art, this utility model provides a basement external paving layer anti-settlement structure.
[0004] A basement anti-settlement structure includes a floating slab installed on the backfill layer on the outer side of the basement sidewall. The basement sidewall and the floating slab are reinforced concrete structures. The floating slab and the basement sidewall are cast together as a single concrete unit. A waterproof layer for the floating slab is located between the bottom surface of the floating slab and the backfill layer. The floating slab and the basement sidewall are internally waterproofed.
[0005] Furthermore, the area where the basement sidewall contacts the backfill soil is a waterproof layer.
[0006] Furthermore, the waterproof layer of the floating slab is a polyurethane waterproof coating applied to the bottom surface of the floating slab, and the waterproof layer of the sidewall is a polyurethane waterproof coating applied to the outer side of the sidewall.
[0007] Furthermore, the backfill soil in the backfill layer is liquid solid soil.
[0008] Furthermore, the concrete poured together with the basement sidewalls is waterproof concrete.
[0009] The beneficial effects of this utility model are as follows: By adding a floating slab to the backfill layer of the basement sidewall, which can be a ground hardening layer, the ground hardening layer is constructed in advance and constructed and poured with the basement sidewall at the same time. This effectively prevents uneven settlement caused by inadequate compaction of the basement sidewall backfill, avoids losses caused by on-site rework and repair, and also effectively protects the waterproof coating of the basement sidewall, resulting in good economic benefits. Attached Figure Description
[0010] Figure 1This is a schematic diagram of a basement anti-settlement structure according to the present invention;
[0011] Figure 2 This is a schematic diagram of the side wall of a basement anti-settlement structure according to the present invention.
[0012] Explanation of symbols in the attached diagram:
[0013] 1. Basement sidewalls, 2. Overhanging slabs, 3. Sidewall waterproofing layer, 4. Backfill layer, 5. Paving layer, 6. Overhanging slab waterproofing layer.
[0014] 7. Basement roof slab. Detailed Implementation
[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0016] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0017] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0018] In the description of this patent, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between 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 based on the specific circumstances.
[0019] A basement anti-settlement structure, such as Figure 1As shown, a floating slab 2 is installed on the backfill layer of the outer side wall 1 of the basement. The basement side wall 1 and the floating slab 2 are reinforced concrete structures. The floating slab 2 and the basement side wall 1 are cast together with concrete. The bottom surface of the floating slab 2 and the backfill layer 4 are connected by a floating slab waterproof layer 6. The floating slab and the basement side wall are waterproofed internally.
[0020] This invention involves adding a structural cantilever slab at the construction location of the ground hardening layer during the construction of the basement sidewall. This slab replaces the subsequent ground hardening layer and is cast together with the basement sidewall to form a single unit, rather than constructing the basement sidewall and ground hardening layer separately. This structure effectively prevents uneven settlement of the ground hardening layer caused by inadequate backfilling and compaction of the basement sidewall, avoiding losses due to on-site rework and repairs. It also effectively protects the waterproof coating of the basement sidewall, resulting in good economic benefits.
[0021] Furthermore, such as Figure 1 As shown, the area between the basement sidewall 1 and the backfill layer 4 is a sidewall waterproof layer 3.
[0022] Furthermore, such as Figure 1 As shown, the waterproof layer 6 of the floating slab is a polyurethane waterproof coating applied to the bottom surface of the floating slab, and the waterproof layer 3 of the side wall is a polyurethane waterproof coating applied to the outer side of the side wall.
[0023] Furthermore, such as Figure 1 As shown, the backfill soil in the backfill layer 4 is liquid solid soil. The added floating slab 2 avoids uneven settlement of the ground paving layer caused by the compaction problem of the backfill layer, which is the hardened ground layer after the floating slab is built. However, it also covers the operation space of the backfill layer. Therefore, liquid solid soil is used for backfilling, which solves the problem of no backfill operation space when the basement sidewall is built at the same time as the floating slab.
[0024] Furthermore, such as Figure 1 As shown, the concrete poured together with the basement sidewall is waterproof concrete.
[0025] Example 1
[0026] This utility model can be applied to the anti-settlement structure of basements in garden building towers. For example... Figure 2 As shown, the original tower basement sidewall structure was a reinforced concrete structure and waterproofing. In this embodiment, the upper garden paving hardening layer was constructed together with the basement sidewall 1. This hardening layer is the addition of a structural cantilever slab 2, which was constructed in advance and poured with concrete along with the basement sidewall 1. Because the structural cantilever slab 2 was poured together with the basement sidewall 1, uneven settlement of the garden paving layer caused by insufficient compaction of the backfill layer 4 at the base of the tower or podium was avoided. It also prevented rainwater from flowing back into the basement sidewall due to uneven settlement caused by the original method, which would then erode and damage the waterproofing layer 3 of the basement sidewall.
[0027] In this embodiment, the basement side wall 1 structure is a reinforced concrete structure and waterproofing structure constructed on-site according to design requirements. This approach fulfills the functional requirements and waterproofing requirements of the basement side wall.
[0028] In this embodiment, the garden paving hardening layer is designed as a reinforced concrete floating slab 2. When constructing the basement side wall 1, the upper garden paving hardening layer is constructed together with the basement side wall 1. This hardening layer becomes an additional floating slab 2 structure, which is constructed in advance and poured together with the original basement side wall 1.
[0029] The working principle and usage process of this utility model are as follows: In use, this utility model first adds a structural floating slab 2 and pours it together with the basement side wall structure 1. The added structural floating slab 2 is the original hardened layer of the garden paving. The subsequent garden paving layer 5 starts from the construction of the floating slab 2 structure. Because the added structural floating slab 2 is poured together with the basement structure, it effectively avoids uneven settlement of the paving layer caused by insufficient compaction of the backfill soil 4 in the backfill layer at the base of the tower or podium. It also prevents rainwater from flowing back into the basement side wall due to uneven settlement caused by the original method, thereby eroding and damaging the waterproof layer 03 of the basement side wall.
[0030] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.
Claims
1. A basement exterior paving layer settlement prevention structure, characterized by, A floating slab (2) is installed on the backfill layer outside the basement sidewall (1). The basement sidewall (1) and the floating slab (2) are reinforced concrete structures. The floating slab (2) and the basement sidewall (1) are poured together as one piece of concrete. The bottom surface of the floating slab (2) and the backfill layer (4) are connected by a floating slab waterproof layer (6). The floating slab and the basement sidewall are waterproofed internally.
2. The basement exterior paving layer settlement-preventing structure according to claim 1, characterized by, The area between the basement sidewall (1) and the backfill layer (4) is a sidewall waterproof layer (3).
3. The basement exterior paving layer settlement prevention structure according to claim 2, characterized by, The waterproof layer (6) of the floating slab is a polyurethane waterproof coating applied to the bottom surface of the floating slab, and the waterproof layer (3) of the side wall is a polyurethane waterproof coating applied to the outer side of the side wall.
4. The basement exterior paving course anti-settling construction according to claim 1, characterized by, The backfill soil in the backfill layer (4) is liquid solid soil.
5. The basement exterior paving course anti-settling construction according to claim 1, characterized by, The concrete poured together with the floating slab (2) and the basement side wall (1) is waterproof concrete.