Anti-micro-vibration building structure suitable for soft soil layer
Patent Information
- Application Number
- CN202522510864.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-26
AI Technical Summary
然而，这些传统方法在实际应用中存在显著局限：首先，其对场地土质条件较为敏感，在软土、回填土或地下水位较高的区域，隔振效果往往难以保证；其次，隔振沟与隔振排桩的施工通常涉及深基坑作业或复杂桩基工程，不仅技术难度大、周期长，还对周边现有结构和地下管线造成潜在影响；此外，这类措施的材料与建造成本高昂，维护困难，导致其整体经济性较差，难以在普通工业建筑或城市更新项目中大规模推广
[0018]如上配置，本实用新型提供一种适用于软土地层的防微振动建筑结构，防微振动建筑结构包括建筑物、土体和置换层，所述建筑物构筑于所述土体上，所述置换层位于所述土体中，所述置换层与所述建筑物的外侧相邻并环绕所述建筑物，所述置换层的密度大于所述土体的密度。本实用新型通过在建筑物周边设计一定范围和深度的区域，先挖出该区域原有的自然土层，再使用密度相对更大的混凝土材料，对该区域进行填充，形成置换层，以使建筑物周边特定范围内出现混凝土环形带，大大减轻了周侧环境振动对建筑物的影响。综上所述，本实用新型通过在建筑物周边设置置换层，从而改变建筑物周边的振动传播介质的物理特性，实现防微振动的目的。本实用新型的防微振动建筑结构具有使用范围广的优点，可以用于位于软土地层上的紧密厂房、大型科学装置等对振动控制有严格要求的新建建筑物和已建成建筑物；本实用新型的防微振动建筑结构相比传统的隔振排桩和隔振沟结构，减振性能更加可靠，造价更低；本实用新型的防微振动建筑结构还具有施工方便的优点，施工无需使用大型专业施工设备，降低了建造成本，易于大规模推广。
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Figure CN224813100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of architectural design, and in particular to a micro-vibration resistant building structure suitable for soft soil strata. Background Technology
[0002] In high-end industrial and scientific research fields such as precision instrument manufacturing, chip production, and large-scale scientific facilities, extremely high requirements are placed on the micro-vibration control of the operating environment. These processes and equipment typically require stable operation at the nanometer or submicrometer level; any minute ground vibration can lead to decreased product yield, loss of measurement accuracy, or distortion of experimental data. When buildings are located in soft soil strata, due to the low stiffness and weak damping characteristics of the soil itself, environmental vibrations (such as traffic loads, construction activities, and machinery operation) are more easily propagated and amplified through the foundation soil, causing the internal ground of the building to exceed the allowable vibration limits, seriously affecting the feasibility of the process and the normal operation of the equipment. Therefore, effective vibration reduction and isolation designs must be adopted for buildings to reduce the impact of environmental vibrations on the building and ensure the stability of the internal environment.
[0003] Currently, the main methods for building vibration reduction are to install vibration isolation trenches or vibration isolation piles around the building. Vibration isolation trenches are constructed by excavating trenches of a certain depth and width, utilizing the wave resistance characteristics of the air within the trench to block the propagation of surface waves; vibration isolation piles, on the other hand, form wave barriers by installing a group of piles in the foundation to reflect or scatter vibration energy. However, these traditional methods have significant limitations in practical applications: First, they are highly sensitive to site soil conditions, and the vibration isolation effect is often difficult to guarantee in areas with soft soil, backfill soil, or high groundwater levels; second, the construction of vibration isolation trenches and vibration isolation piles usually involves deep foundation pit operations or complex pile foundation engineering, which is not only technically challenging and time-consuming, but also has potential impacts on surrounding existing structures and underground pipelines; in addition, the material and construction costs of these measures are high, and maintenance is difficult, resulting in poor overall economic efficiency and making it difficult to promote on a large scale in ordinary industrial buildings or urban renewal projects. Utility Model Content
[0004] The purpose of this invention is to provide a micro-vibration-resistant building structure suitable for soft soil layers. By setting a replacement layer around the building, the physical characteristics of the vibration propagation medium around the building are changed, thereby achieving the purpose of preventing micro-vibrations.
[0005] To achieve the above objectives, this utility model provides a micro-vibration resistant building structure suitable for soft soil strata, comprising:
[0006] building;
[0007] The soil body on which the building is constructed;
[0008] A replacement layer is located in the soil, adjacent to and surrounding the outer side of the building, and the density of the replacement layer is greater than that of the soil.
[0009] Optionally, the replacement layer is concrete.
[0010] Optionally, the soil is provided with a pit for accommodating the replacement layer and the building, the sidewall of the pit being inclined, and the lower end of the inclined surface being closer to the building than the upper end of the inclined surface.
[0011] Optionally, the angle between the inclined plane and the horizontal plane is 45° to 60°.
[0012] Optionally, the building includes an exterior wall and a base slab, with the lower end of the exterior wall connected to the base slab.
[0013] Optionally, the building includes a foundation layer, and the building base plate is located on the foundation layer.
[0014] Optionally, the anti-micro-vibration building structure includes multiple pile foundations, which are located below the building and support it.
[0015] Optionally, the pile foundation passes through the cushion layer and is supported under the building's base slab.
[0016] Optionally, the replacement layer surrounds and abuts the lower end of the building exterior wall, the building base plate, and the cushion layer.
[0017] Optionally, the bottom of the replacement layer is flush with the bottom of the padding layer.
[0018] As configured above, this utility model provides a micro-vibration-resistant building structure suitable for soft soil strata. The micro-vibration-resistant building structure includes a building, soil, and a replacement layer. The building is constructed on the soil, and the replacement layer is located within the soil. The replacement layer is adjacent to and surrounds the outer side of the building, and its density is greater than that of the soil. This utility model designs an area of a certain range and depth around the building, first excavating the original natural soil layer in this area, and then filling the area with concrete, a material with a relatively higher density, to form a replacement layer. This creates a concrete ring around the building, significantly reducing the impact of surrounding environmental vibrations on the building. In summary, this utility model achieves the purpose of micro-vibration protection by setting a replacement layer around the building, thereby changing the physical characteristics of the vibration propagation medium around the building. This invention's anti-micro-vibration building structure has the advantage of wide applicability. It can be used in newly built and existing buildings with strict vibration control requirements, such as dense factories and large scientific facilities located on soft soil strata. Compared with traditional vibration isolation piles and vibration isolation trenches, this invention's anti-micro-vibration building structure has more reliable vibration reduction performance and lower cost. This invention's anti-micro-vibration building structure also has the advantage of convenient construction. Construction does not require the use of large-scale professional construction equipment, reducing construction costs and making it easy to promote on a large scale. Attached Figure Description
[0019] Those skilled in the art will understand that the accompanying drawings are provided to better understand the present invention and do not constitute any limitation on the scope of the present invention. Wherein:
[0020] Figure 1 This is a cross-sectional view of a micro-vibration resistant building structure suitable for soft soil strata according to an embodiment of the present invention;
[0021] Figure 2 This is a top view of a micro-vibration resistant building structure suitable for soft soil layers, according to an embodiment of the present invention.
[0022] The reference numerals in the attached figures are as follows:
[0023] 1-Building; 11-Exterior wall of building; 12-Foundation slab of building; 13-Subbase layer; 2-Soil; 21-Sloping surface; 3-Replacement layer; 4-Pile foundation. Detailed Implementation
[0024] In this document, unless otherwise stated, the terms “upper,” “lower,” “left,” “right,” “inner,” “outer,” “front,” “back,” “top,” “bottom,” etc., are used to indicate orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a characteristic orientation and operation, and therefore should not be construed as a limitation of the present invention.
[0025] The specific embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0026] The preferred embodiments of this utility model are given below with reference to the accompanying drawings and described in detail.
[0027] Figure 1 This is a vertical cross-sectional view of a micro-vibration resistant building structure suitable for soft soil strata according to an embodiment of this utility model. Figure 2 This is a top view of a micro-vibration resistant building structure suitable for soft soil strata, according to an embodiment of this utility model. Please refer to it. Figure 1 and Figure 2 This utility model provides a micro-vibration resistant building structure suitable for soft soil strata, comprising a building 1, a soil body 2, and a replacement layer 3. The soil body 2 is the natural soil layer, and this utility model is particularly suitable for softer soil strata.
[0028] The building 1 is constructed on the soil 2, and further, the lower end of the building 1 is buried in the soil 2, also known as the foundation of the building 1. It can be understood that the foundation is the load-bearing part of the building below the ground, which is responsible for transferring the load from the superstructure of the building along with its own weight to the ground.
[0029] The replacement layer 3 is located within the soil mass 2. It is understood that the soil mass 2 has recesses for accommodating the replacement layer 3 and the building 1. The replacement layer 3 is adjacent to and surrounds the outer side of the building 1, and its density is greater than that of the soil mass 2. It is understood that the lower end of the building 1 and the replacement layer 3 are located within the recesses, with the lower end of the building 1 surrounded by the replacement layer 3. During construction, a recess is excavated in the soil mass 2, and then filled with a material having a density greater than that of the soil mass 2 to form the replacement layer 3. For example, the replacement layer 3 can be concrete, compacted sand, cement-soil (a mixture of cement and soil), or denser materials such as slag. This invention achieves vibration reduction through the installation of the replacement layer 3.
[0030] Specifically, the building 1 comprises an external building wall 11 and a building base plate 12, wherein the lower end of the external building wall 11 is connected to the building base plate 12. The building 1 further comprises a cushion layer 13, and the building base plate 12 is located above the cushion layer 13. The replacement layer 3 surrounds and adjoins the lower end of the external building wall 11, the building base plate 12 and the cushion layer 13. That is, the peripheral side of the lower end of the external building wall 11, the peripheral side of the building base plate 12 and the peripheral side of the cushion layer 13 are all surrounded by the replacement layer 3. Please refer to Figure 1 and Figure 2 , in this embodiment, the building 1 is a "hui"-shaped (square-frame-shaped) building, therefore, the central part of the "hui" shape is also the exterior of the building 1, so it is necessary to provide the replacement layer 3 around the external building wall 11 of the inner ring of the "hui" shape, and the replacement layer 3 also needs to be provided outside the external building wall 11 of the outer ring of the "hui" shape. Further, the bottom of the replacement layer 3 is flush with the bottom of the cushion layer 13, as shown in Figure 1 It can be understood that the bottom of the replacement layer 3 is the pit bottom of the pit. The inventor found through tests that the maximum vibration-proof effect can be achieved when the pit bottom is flush with the bottom of the cushion layer 13, and digging further down does not bring significant additional effect.
[0031] The micro-vibration-proof building structure comprises a plurality of pile foundations 4, and the pile foundations 4 are located below the building 1 and support the building 1. Further, the pile foundations 4 pass through the cushion layer 13 and are supported below the building base plate 12. It can be understood that the pile foundations 4 pass from the soil body 2 into the cushion layer 13 and then are supported below the building base plate 12.
[0032] Preferably, the side wall of the pit is an inclined surface 21, and the lower end of the inclined surface 21 is closer to the building 1 than the upper end of the inclined surface 21. Compared with a vertical side wall of the pit, arranging the side wall as the inclined surface 21 firstly changes the boundary conditions of the two media, namely the soil body 2 and concrete (the replacement layer 3), changes the propagation direction of vibration waves to a certain extent, which is favorable for vibration reduction; secondly, arranging the side wall as the inclined surface 21 facilitates excavation and concrete filling. By way of example, the included angle between the inclined surface 21 and the horizontal plane is 45° to 60°.
[0033] As configured above, this utility model provides a micro-vibration-resistant building structure suitable for soft soil strata. The micro-vibration-resistant building structure includes a building 1, soil 2, and a replacement layer 3. The building 1 is constructed on the soil 2, and the replacement layer 3 is located within the soil 2. The replacement layer 3 is adjacent to and surrounds the outer side of the building 1, and the density of the replacement layer 3 is greater than that of the soil 2. This utility model designs an area of a certain range and depth around the building 1, first excavating the original natural soil layer in this area, and then filling the area with concrete, which has a relatively higher density, to form the replacement layer 3. This creates a concrete ring around the building 1, significantly reducing the impact of surrounding environmental vibrations on the building 1. In summary, this utility model achieves the purpose of micro-vibration prevention by setting a replacement layer 3 around the building 1, thereby changing the physical characteristics of the vibration propagation medium around the building 1. The anti-micro-vibration building structure of this utility model has the advantage of wide applicability. It can be used in newly built buildings 1 and existing buildings 1 with strict requirements for vibration control, such as dense factories and large scientific facilities located on soft soil strata. Compared with traditional vibration isolation piles and vibration isolation trenches, the anti-micro-vibration building structure of this utility model has more reliable vibration reduction performance and lower cost. The anti-micro-vibration building structure of this utility model also has the advantage of convenient construction. Construction does not require the use of large-scale professional construction equipment, which reduces construction costs and is easy to promote on a large scale.
[0034] This embodiment also provides a method for determining the range of the aforementioned replacement layer 3, which includes:
[0035] Step 1: Determine the required vibration reduction effect for the building based on the building's technological requirements and the vibration conditions of the surrounding environment.
[0036] Step 2: Through geological exploration, obtain the physical properties of the soil surrounding Building 1. The physical properties of the soil include, but are not limited to, the unit weight, density, and shear wave velocity of the soil (soil layer). Calculate the wavelength and wave velocity of the vibration wave in this medium based on the physical properties of the soil.
[0037] Step 3: Calculate the geometric dimensions of the replacement layer 3 based on the data obtained in Step 2 and the geometric dimensions of Building 1.
[0038] Step 4: Calculate the vibration values inside building 1 based on the obtained geometric dimensions of replacement layer 3.
[0039] Step 5: Determine whether the vibration values inside building 1 meet the requirements.
[0040] It should be noted that references to "an embodiment," "an embodiment," "a specific embodiment," "some embodiments," etc., in the specification only indicate that the described embodiment may include a specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Additionally, when a specific feature, structure, or characteristic is described in conjunction with an embodiment, whether explicitly described or not, implementing such a feature, structure, or characteristic in conjunction with other embodiments is within the knowledge of those skilled in the art.
[0041] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.
[0042] It should also be noted that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the present invention without departing from the scope of the present invention, or equivalent embodiments can be modified based on the disclosed technical content. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention shall still fall within the protection scope of the present invention.
[0043] It should also be understood that, unless otherwise specified or indicated, the terms “first,” “second,” “third,” etc., in the specification are used only to distinguish the various components, elements, and steps in the specification, and not to indicate the logical or sequential relationships between the various components, elements, and steps.
[0044] Furthermore, it should be recognized that the terminology described herein is used only to describe particular embodiments and not to limit the scope of the invention. It must be noted that the singular forms “a” and “an” used herein and in the appended claims include plural bases unless the context clearly indicates otherwise. For example, a reference to “a step” or “an apparatus” means a reference to one or more steps or apparatuses, and may include secondary steps and secondary apparatuses. All conjunctions used should be understood in the broadest sense. Also, the word “or” should be understood to have the definition of logical “or” rather than logical “exclusive OR”, unless the context clearly indicates otherwise. Furthermore, implementation of the methods and / or devices in embodiments of the invention may include performing selected tasks manually, automatically, or in combination.
Claims
1. A micro-vibration resistant building structure suitable for soft soil strata, characterized in that, include: building; The soil body on which the building is constructed; A replacement layer is located in the soil, adjacent to and surrounding the outer side of the building, and the density of the replacement layer is greater than that of the soil.
2. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 1, characterized in that, The replacement layer is concrete.
3. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 1, characterized in that, The soil has a recess for accommodating the replacement layer and the building. The sidewall of the recess is inclined, and the lower end of the inclined surface is closer to the building than the upper end of the inclined surface.
4. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 3, characterized in that, The angle between the inclined plane and the horizontal plane is 45° to 60°.
5. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 1, characterized in that, The building includes an exterior wall and a base slab, with the lower end of the exterior wall connected to the base slab.
6. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 5, characterized in that, The building includes a subbase, and the building base slab is located on the subbase.
7. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 6, characterized in that, The anti-micro-vibration building structure includes multiple pile foundations, which are located below the building and support it.
8. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 7, characterized in that, The pile foundation passes through the cushion layer and is supported under the building's base slab.
9. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 6, characterized in that, The replacement layer surrounds and is adjacent to the lower end of the building's exterior wall, the building's base plate, and the cushion layer.
10. The anti-micro-vibration building structure suitable for soft soil strata as described in claim 9, characterized in that, The bottom of the replacement layer is flush with the bottom of the padding layer.