Building vibration isolation structure based on foundation pit fat groove
By arranging vibration isolation modules and backfill layers in the foundation pit and trench, and combining them with interlocking piles to form a multi-layer vibration isolation barrier, the problem of the building structure being affected by the vibration of rail transit was solved, and the construction efficiency and vibration isolation effect were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, the main building is subject to significant noise interference due to vibrations from rail transit, and the direct backfilling of soil into the trench during construction results in low construction efficiency and difficulty in ensuring quality.
Vibration isolation modules are arranged in the foundation pit between the rail transit and the main building. Combined with interlocking piles and backfill layers, a multi-layer vibration isolation and noise reduction barrier is formed. The vibration isolation modules are filled with sand and elastically connected to the main building and backfill layer using rubber pads, and reinforced by bending strips.
It effectively reduces the impact of rail transit vibration on buildings, improves construction efficiency and quality, enhances vibration isolation, and reduces external interference.
Smart Images
Figure CN223974623U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to the technical field of building vibration isolation structures, specifically to building vibration isolation structures based on foundation pits and trenches. Background Technology
[0002] There are generally three types of comprehensive solutions for buildings to cope with the vibration environment of rail transit: 1) track vibration isolation; 2) vibration isolation along the propagation path; 3) building vibration isolation.
[0003] For planned sensitive buildings near rail transit, the track vibration isolation measures are limited due to factors such as rail transit clearance and skylight operation time. Therefore, it is more feasible to take vibration isolation measures on the propagation path and on the building.
[0004] In existing technologies, during the construction process, a trench is left between the main building and the perimeter of the foundation pit. This trench is usually filled directly with backfill soil, which makes the main building subject to significant vibrations from rail transit. Utility Model Content
[0005] The purpose of this utility model is to provide a building vibration isolation structure based on a foundation pit and trench, which aims to solve the problem that the main body of a building is greatly affected by rail transit in the existing technology.
[0006] This utility model is implemented as follows: a building vibration isolation structure based on a foundation pit trench is arranged between the rail transit and the main building. It includes a vibration isolation module placed in the trench, and interlocking piles for foundation pit support are provided on the outside of the trench. There is an interval area between the vibration isolation module and the interlocking piles. The interval area is backfilled with backfill material to form a backfill layer. The interlocking piles, the backfill layer and the vibration isolation module are arranged in sequence. The backfill layer abuts against the vibration isolation module and the interlocking piles respectively. The vibration isolation module elastically abuts against the main building.
[0007] Furthermore, the vibration isolation module has a hollow cavity, which is filled with sand to form a filling layer.
[0008] Furthermore, the hollow cavity extends along the height direction of the vibration isolation module, the top of the hollow cavity penetrates through the top of the vibration isolation module, and the top of the filling layer is exposed at the top of the vibration isolation module.
[0009] Furthermore, the bottom of the hollow cavity extends through the bottom of the vibration isolation module, and the bottom of the filling layer abuts against the bottom of the trough.
[0010] Furthermore, the vibration isolation module is provided with a plurality of hollow cavities, which are arranged at intervals along the length of the vibration isolation module.
[0011] Furthermore, a partition plate is provided between adjacent hollow cavities, which separates the adjacent hollow cavities and arranges them independently.
[0012] Furthermore, the vibration isolation module has an inward-facing side facing the main building body, and the inward-facing side is covered with an elastic inner rubber pad that abuts against the main building body.
[0013] Furthermore, the vibration isolation module has an outward-facing side facing the backfill layer, and the outward-facing side is covered with an elastic outer rubber pad that abuts against the backfill layer.
[0014] Furthermore, the vibration isolation module is connected to a bending strip, which includes a horizontal section and a longitudinal section that is bent and arranged to bend from the horizontal section. The horizontal section is inserted into the filling layer, and the longitudinal section is inserted into the backfill layer and extends downward.
[0015] Furthermore, the vibration isolation module includes multiple vibration isolation boxes, which are stacked and plugged into one unit in sequence from bottom to top along the height direction of the trough; each vibration isolation box includes multiple vibration isolation units, which are plugged into one unit in sequence along the length direction of the trough.
[0016] The vibration isolation unit has an independently arranged hollow area. Along the height direction of the trough, the hollow areas of multiple vibration isolation units are aligned vertically and connected to form the hollow cavity.
[0017] Compared with the prior art, the building vibration isolation structure based on foundation pit trench provided by this utility model has the following technical advantages:
[0018] 1) Vibration isolation modules and backfill layers are arranged in the trench, and the interlocking piles, backfill layers and vibration isolation modules are stacked in sequence to form multiple vibration isolation and noise reduction barriers in the trench, which can block vibration and reduce the vibration impact of rail transit on the building, thus reducing the impact of rail transit on the main building.
[0019] 2) The vibration isolation module elastically abuts against the main building structure, further playing the role of elastic vibration isolation;
[0020] 3) During the construction process, a trench will be formed simultaneously. The trench can be used to arrange vibration isolation modules and backfill layers, which greatly improves construction efficiency and economic benefits.
[0021] 4) Vibration isolation modules can be directly installed in the fertilizer tank, which is convenient for construction, easy to ensure construction quality, and has little impact on the outside world. Attached Figure Description
[0022] Figure 1This is a cross-sectional schematic diagram of the building vibration isolation structure based on the foundation pit trench provided by this utility model;
[0023] Figure 2 This is a partial cross-sectional schematic diagram of the building vibration isolation structure based on the foundation pit trench provided by this utility model;
[0024] Figure 3 This is a cross-sectional schematic diagram of the vibration isolation unit provided by this utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] In the accompanying drawings of this embodiment, 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," and "right" 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.
[0028] Reference Figure 1-3 The image shown is a preferred embodiment of the present invention.
[0029] A vibration isolation structure based on a foundation pit trench is arranged between the rail transit 500 and the main building 100. It includes a vibration isolation module 400 placed in the trench, and interlocking piles 300 for foundation pit support are provided on the outside of the trench. There is an interval between the vibration isolation module 400 and the interlocking piles 300. Backfill material is backfilled in the interval to form a backfill layer 200. The interlocking piles 300, the backfill layer 200 and the vibration isolation module 400 are stacked in sequence. The backfill layer 200 abuts against the vibration isolation module 400 and the interlocking piles 300 respectively. The vibration isolation module 400 elastically abuts against the main building 100.
[0030] In actual construction, for ease of construction and other reasons, an additional section needs to be excavated on top of the existing working surface to form a trench. This trench surrounds the outer perimeter of the main building 100, forming a space between the outer edge of the foundation pit and the main building 100. The interlocking piles 300 are constructed before the foundation pit is excavated and are used for peripheral support of the foundation pit.
[0031] The above-mentioned building vibration isolation structure based on foundation pit trench has the following technical advantages:
[0032] 1) Vibration isolation modules 400 and backfill layer 200 are arranged in the trench, and the interlocking piles 300, backfill layer 200 and vibration isolation modules 400 are stacked in sequence to form multiple vibration isolation and noise reduction barriers in the trench, which can block vibration and reduce the vibration impact of rail transit 500 on the building, thus playing a role in vibration isolation and noise reduction and reducing the impact of rail transit on the main building.
[0033] 2) The vibration isolation module 400 elastically abuts against the main building 100, further playing the role of elastic vibration isolation;
[0034] 3) During the construction process, a trench will be formed simultaneously. The trench can be used to directly arrange the vibration isolation module 400 and the backfill layer 200, which greatly improves construction efficiency and economic benefits.
[0035] 4) Vibration isolation modules 400 can be directly installed in the fertilizer tank, which is convenient to construct, easy to ensure construction quality, and has little impact on the outside world.
[0036] In this embodiment, the vibration isolation module 400 has a hollow cavity filled with sand to form a filling layer 4021. By arranging the hollow cavity and forming the filling layer 4021 within it, layered vibration isolation can be formed inside the vibration isolation module 400, further improving the vibration isolation and noise reduction effect.
[0037] In this embodiment, the hollow cavity extends along the height direction of the vibration isolation module 400, with the top of the hollow cavity penetrating the top of the vibration isolation module 400, and the top of the filling layer 4021 exposed on the top of the vibration isolation module 400. This ensures that vibration isolation and noise reduction are achieved over a wider area along the height direction of the cavity.
[0038] In this embodiment, the bottom of the hollow cavity extends through the bottom of the vibration isolation module 400, and the bottom of the filling layer 4021 abuts against the bottom of the trough. First, this ensures that vibration isolation and noise reduction are achieved over a wider area along the height of the trough; second, the filling layer 4021 can directly abut against the bottom of the trough, making the structure of the vibration isolation module 400 more stable.
[0039] In this embodiment, the vibration isolation module 400 is provided with multiple hollow cavities as described above, and the multiple hollow cavities are arranged at intervals along the length direction of the vibration isolation module 400. The multiple hollow cavities divide the interior of the vibration isolation module 400, forming multi-position and multi-range vibration isolation and noise reduction.
[0040] In this embodiment, a partition plate 406 is provided between adjacent hollow cavities, which separates and independently arranges the adjacent hollow cavities. The independent arrangement of multiple hollow cavities can form multi-position and multi-range vibration isolation and noise reduction inside the vibration isolation module 400, and facilitates the filling of sand into the hollow cavities.
[0041] In this embodiment, the vibration isolation module 400 has an inward-facing side facing the building body 100, and an elastic inner rubber pad 403 is covered on the inward-facing side, which elastically abuts against the building body 100. In this way, the vibration isolation module 400 and the building body 100 form an elastic buffer structure using the inner rubber pad 403, which plays a role in vibration isolation and noise reduction.
[0042] The vibration isolation module 400 has an outward-facing side facing the backfill layer 200, and an elastic outer rubber pad 404 is covered on the outer side, which elastically abuts against the backfill layer 200. In this way, the vibration isolation module 400 and the backfill layer 200 form an elastic buffer structure with the outer rubber pad 404, which plays a role in vibration isolation and noise reduction. The vibration isolation module 400 is elastically clamped by the inner rubber pad 403 and the outer rubber pad 404.
[0043] In this embodiment, the vibration isolation module 400 is connected to a bending strip 401. The bending strip 401 includes a horizontal section and a longitudinal section that is bent and arranged with the horizontal section. The horizontal section is inserted into the filling layer 4021, and the longitudinal section is inserted into the backfill layer 200 and extends downward.
[0044] The bent strip 401 can be a "7" shaped steel bar, which is inserted into the filling layer 4021 and the backfill layer 200 respectively to reinforce and ensure that the vibration isolation module 400 is stable in the trench.
[0045] In this embodiment, the vibration isolation module 400 includes multiple vibration isolation boxes, which are stacked and connected in sequence from bottom to top along the height direction of the trough. Each vibration isolation box includes multiple vibration isolation units 402, which are connected in sequence along the length direction of the trough.
[0046] The vibration isolation unit 402 has an independently arranged hollow area. Along the height direction of the trough, the hollow areas of multiple vibration isolation units 402 are aligned vertically and connected to form the hollow cavity.
[0047] The vibration isolation module 400 is assembled in sections, which facilitates its assembly in the tank. The plug-in connection method also facilitates assembly and transportation. The plug-in structure includes a plug and a slot, allowing the plug to be inserted into the slot and enabling the connection of adjacent vibration isolation units 402.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A building vibration isolation structure based on a foundation trench, characterized by, The vibration isolation module is arranged between the rail transit and the building body, and includes a vibration isolation module arranged in a fat groove, and the fat groove is provided with an engagement pile for foundation pit support, and a spacing area is formed between the vibration isolation module and the engagement pile; the spacing area is backfilled with a backfill material to form a backfill layer, and the engagement pile, the backfill layer and the vibration isolation module are sequentially stacked, the backfill layer is in contact with the vibration isolation module and the engagement pile, and the vibration isolation module is in elastic contact with the building body.
2. The foundation trench-based building vibration isolation structure according to claim 1, wherein The vibration isolation module has a hollow cavity, and the hollow cavity is filled with sand to form a filling layer.
3. The foundation trench-based building vibration isolation structure according to claim 2, wherein The hollow cavity extends along the height direction of the vibration isolation module, the top of the hollow cavity penetrates the top of the vibration isolation module, and the top of the filling layer is exposed at the top of the vibration isolation module.
4. The foundation trench-based building vibration isolation structure according to claim 3, wherein The bottom of the hollow cavity penetrates the bottom of the vibration isolation module, and the bottom of the filling layer is in contact with the bottom of the fat groove.
5. The foundation trench-based building vibration isolation structure according to claim 2, wherein The vibration isolation module is provided with a plurality of hollow cavities, and the plurality of hollow cavities are arranged in the length direction of the vibration isolation module.
6. The foundation trench-based building vibration isolation structure according to claim 5, wherein A partition plate is arranged between adjacent hollow cavities, and the partition plate separates the adjacent hollow cavities.
7. The foundation trench-based building vibration isolation structure according to any one of claims 1 to 6, wherein The vibration isolation module has an inward side surface facing the building body, and the inward side surface is covered with an elastic inner side rubber pad, and the inner side rubber pad is in contact with the building body.
8. The foundation trench-based building vibration isolation structure according to claim 7, wherein The vibration isolation module has an outward side surface facing the backfill layer, and the outward side surface is covered with an elastic outer side rubber pad, and the outer side rubber pad is in contact with the backfill layer.
9. The foundation trench-based building vibration isolation structure according to any one of claims 1 to 6, wherein The vibration isolation module is connected with a bending strip, the bending strip includes a horizontal segment and a longitudinal segment arranged in a bending manner with the horizontal segment, the horizontal segment is inserted into the filling layer, the longitudinal segment is inserted into the backfill layer and extends downward.
10. The foundation trench-based building vibration isolation structure according to claim 2, wherein The vibration isolation module includes a plurality of vibration isolation boxes, and the plurality of vibration isolation boxes are sequentially and integrally connected in the height direction of the fat groove; the vibration isolation box includes a plurality of vibration isolation units, and the plurality of vibration isolation units are sequentially and integrally connected in the length direction of the fat groove. The vibration isolation unit has an independently arranged hollow area, and the hollow areas of the plurality of vibration isolation units are vertically aligned and communicated in the height direction of the fat groove to form the hollow cavity.