Anti-sliding overhanging raft foundation structure at side slope position
By adopting an anti-slip cantilever raft foundation structure in slope construction, and utilizing a combination of load-bearing piles, prestressed anchor cables, and anti-slip grooves, the problem of complex foundation design for slope construction is solved, resulting in reduced costs, shorter construction periods, and improved aesthetics.
Patent Information
- Application Number
- CN202423218292.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The foundation design of slope structures is complex, and traditional reinforcement methods are costly, time-consuming, and aesthetically unappealing.
The anti-slip cantilever raft foundation structure includes a raft slab, load-bearing piles, prestressed anchor cables, and anti-slip grooves. The load-bearing piles provide pull-out resistance, the prestressed anchor cables provide prestress, and the anti-slip grooves provide anti-slip force to ensure the stability of the raft slab.
It effectively reduces construction costs, shortens the construction period, enhances the aesthetic effect of buildings, and meets the requirements for anti-slip stability.
Smart Images
Figure CN223593406U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building structure technical field especially relates to a slope position anti -slip cantilever raft foundation structure. BACKGROUND
[0002] The slope building brings certain complexity to the foundation design of the structure foundation because of its topographic and geomorphic characteristics. When building at the slope position, the bearing capacity, stability and anti-sliding capacity of the foundation need to be considered. These requirements make the foundation design of the slope building need to be more delicate and complex. In actual engineering, when the building is constructed on the foundation at the slope position, the foundation is mostly reinforced concrete raft foundation. In order to reduce the engineering cost and the need of architectural aesthetics, the building foundation needs to be as simple as possible. The general practice needs to reinforce the slope foundation, and then set the foundation raft on the reinforced slope. At this time, it may bring higher construction cost, longer construction period and poor architectural aesthetic effect. SUMMARY
[0003] The slope position anti-sliding cantilever raft foundation structure provided by the application can effectively reduce the construction cost at the slope position, shorten the construction period and improve the architectural aesthetic effect.
[0004] The slope position anti-sliding cantilever raft foundation structure provided by the application can effectively reduce the construction cost at the slope position, shorten the construction period and improve the architectural aesthetic effect.
[0005] In the slope position anti-sliding cantilever raft foundation structure of the embodiments of the present application, the force-bearing pile can provide anti-pulling force to balance the gravity of the load above the cantilevered section, preventing the cantilevered section from tilting to the side of the slope surface; the tension of the prestressed anchor cable can provide prestress to the raft above the raft to counteract the gravity of the load above the raft, avoiding the sinking deformation of the raft; the anti-sliding groove can fix the raft at the position of the top of the slope, avoiding the displacement of the raft to the side of the slope surface. In this way, the structure can ensure that the cantilevered building does not slide at the slope position, meeting the anti-sliding stability of the cantilevered building. Compared with the traditional reinforcement method, the structure design is simpler, which can effectively shorten the construction period and reduce the construction cost, and the structure is designed on the basis of mechanics, so that the building can extend from the slope and be more ornamental.
[0006] In some embodiments, the raft further comprises an anchor cushion beam arranged at the end of the cantilevered section opposite to the inner extended section, and one end of the prestressed anchor cable is connected to the anchor cushion beam.
[0007] In some embodiments, the inner extended section is provided with a pile cap, the force-bearing pile is connected to the pile cap, and the cross section of the pile cap is larger than the cross section of the force-bearing pile.
[0008] In some embodiments, the pile cap and the force-bearing pile are integrally connected by reinforced concrete pouring.
[0009] In some embodiments, the anti-sliding groove and the inner extended section are integrally connected by reinforced concrete pouring.
[0010] In some embodiments, the number of force-bearing piles is multiple, and the multiple force-bearing piles are arranged at intervals along the direction perpendicular to the extension direction of the cantilevered section.
[0011] In some embodiments, the anti-sliding groove is continuously arranged along the direction perpendicular to the extension direction of the cantilevered section; or
[0012] The number of anti-sliding grooves is multiple, and the multiple anti-sliding grooves are arranged at intervals along the direction perpendicular to the extension direction of the cantilevered section.
[0013] In some embodiments, the anti-sliding groove is arranged at intervals with the slope surface.
[0014] In some embodiments, the number of prestressed anchor cables is multiple, and the multiple prestressed anchor cables are arranged at intervals along the direction perpendicular to the extension direction of the cantilevered section.
[0015] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:
[0017] Fig. 1 is a schematic view of a longitudinal section of a raft foundation structure in an embodiment of the present application;
[0018] Fig. 2 is a schematic view of a transverse plane of a raft foundation structure in an embodiment of the present application;
[0019] Fig. 3 is a schematic view of a stress between a raft and an anchor cable in an embodiment of the present application.
[0020] Explanation of main element symbols:
[0021] Raft 10, inner extension section 11, overhanging section 12, anchor mat beam 13, force-bearing pile 20, pile cap 21, prestressed anchor cable 30, anti-slide groove 40. DETAILED DESCRIPTION
[0022] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or similar components have the same or similar designations throughout the several figures of the drawings and any description of the same or similar components can be understood to apply to each of the several figures of the drawings. The embodiments described below are examples of implementations of the present application, and are not intended to be limiting of the present application as a whole. Descriptions of well-known functions and components can be omitted so as to not unnecessarily obscure the application.
[0023] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.
[0024] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0025] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the application. In order to simplify the disclosure of the application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the application. In addition, the application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.
[0027] Please refer to Figs. 1-3The slope position anti-sliding cantilever raft foundation structure of the embodiment of the present application comprises a raft 10, a force-bearing pile 20, a prestressed anchor cable 30 and an anti-sliding groove 40. The raft 10 comprises an inner extension section 11 and a cantilever section 12. The inner extension section 11 is arranged on the top of the slope. The cantilever section 12 extends from the inner extension section 11 towards the slope and is at least partially extended out of the top of the slope to be in a suspended state. The force-bearing pile 20 is arranged at the bottom of the inner extension section 11 away from the cantilever section 12. The force-bearing pile 20 extends towards the depth of the slope and is fixed in the soil of the slope. The force-bearing pile 20 is used to support and fix the raft 10 and provide uplift resistance. One end of the prestressed anchor cable 30 is connected to the end of the cantilever section 12 away from the inner extension section 11. The other end of the prestressed anchor cable 30 penetrates through the force-bearing pile 20 and is fixed in the soil of the slope. The prestressed anchor cable 30 is used to provide prestress to the raft 10. The anti-sliding groove 40 is arranged at the bottom of the inner extension section 11 close to the cantilever section 12. The anti-sliding groove 40 extends towards the depth of the slope and is fixed in the soil of the slope. The anti-sliding groove 40 is used to fix the raft 10 and provide anti-sliding force in the horizontal direction.
[0028] Specifically, the raft 10 can be a planar structure in the form of a plate and has strong load-bearing capacity. For example, the raft 10 can be cast from reinforced concrete. The structure of the raft 10 can be divided into two parts according to its position relative to the slope, namely the inner extension section 11 and the cantilever section 12. The inner extension section 11 is arranged on the soil at the top of the slope and belongs to the support area. The cantilever section 12 is suspended above the slope surface. When the load above the cantilever section 12 is of a certain weight, only the support force between the inner extension section 11 and the soil of the slope cannot keep the whole building stable and the building will tilt to the side of the slope, and thus the force-bearing pile 20 can be arranged on the side of the inner extension section 11 to balance the load gravity on the side of the cantilever section 12.
[0029] The force-bearing pile 20 can be arranged below the inner extension section 11 and extend from the top of the slope to the soil below. When the load above the cantilever section 12 is of a certain weight, the force-bearing pile 20 can press the soil on the side away from the slope surface, and the soil can provide strong counterforce, thereby avoiding the cantilever section 12 from tilting to the side of the slope and improving the overall support capacity of the raft 10.
[0030] Preferably, according to the principle of the lever arm, the fulcrum of the raft 10 can be regarded as the support contact point between the raft 10 and the edge of the top of the slope. In order to make the load above the raft 10 larger, the force-bearing pile 20 can be arranged at the end of the inner extension section 11 away from the cantilever section 12, so that the lever arm on the side of the inner extension section 11 is longer and the weight that can be loaded on the side of the cantilever section 12 is larger, thereby further improving the overall support capacity of the raft 10. At the same time, the force-bearing pile 20 can also extend to a deeper position, so that the force-bearing pile 20 has better uplift resistance.
[0031] Further, the force bearing pile 20 can be integrated with the raft 10, so that the raft 10 and the force bearing pile 20 can have stronger stability, and the raft 10 can not be separated from the force bearing pile 20 due to excessive load.
[0032] In some embodiments, the pile cap 21 can be arranged at the bottom of the inner extension section 11, and the cross section of the pile cap 21 can be larger than that of the force bearing pile 20, so that the force bearing pile 20 can be more stably connected to the raft 10 through the pile cap 21. The pile cap 21 can be directly formed by pouring reinforced concrete from the bottom of the inner extension section 11 to the soil, and the force bearing pile 20 can extend to the soil along the pile cap 21. The force bearing pile 20 can also be integrally formed with the pile cap 21 by pouring reinforced concrete, so that the stability between the force bearing pile 20 and the raft 10 can be greatly improved.
[0033] In some embodiments, the number of force bearing piles 20 can be multiple, and the multiple force bearing piles 20 can be arranged at intervals along the extension direction perpendicular to the overhanging section 12. It can be understood that, within the bearing capacity of the raft 10 and the slope foundation, the more the number of force bearing piles 20, the greater the load that can be borne above the raft 10, so that the multiple force bearing piles 20 can better improve the stability of the entire structure. Of course, in some other embodiments, the positions of the multiple force bearing piles 20 can be determined according to the specific support of the inner extension section 11 and the slope soil, and the present application does not limit the positions of the force bearing piles 20 relative to the inner extension section 11.
[0034] As shown in FIG. 1, the force bearing pile 20 can be arranged at the bottom of the inner extension section 11, and the force bearing pile 20 can extend to the soil along the inner extension section 11. Fig. 3 As shown in FIG. 1, the prestressed anchor cable 30 is mainly used to provide upward prestress to the raft 10. Due to the load above the raft 10, the raft 10 can form a load bending curve similar to curve A, that is, the raft 10 can be deformed and sink. One end of the prestressed anchor cable 30 is fixed to the end of the overhanging section 12 opposite to the inner extension section 11, and the other end is fixed in the soil of the slope through the force bearing pile 20. The prestressed anchor cable 30 is in tension, and can provide prestress similar to curve B to the raft 10. In this way, the prestressed anchor cable 30 can provide upward prestress to the raft 10, so as to effectively offset the sinking deformation of the raft 10 caused by the load above the raft 10, so that the foundation stress deformation of the raft 10 can be relatively flat, and the stability of the raft 10 under load can be improved.
[0035] In some embodiments, the raft 10 further includes an anchor cushion beam 13, and the anchor cushion beam 13 is arranged at the end of the overhanging section 12 opposite to the inner extension section 11. One end of the prestressed anchor cable 30 is connected to the anchor cushion beam 13.
[0036] In some embodiments, the number of prestressed anchor cables 30 can be multiple, and the multiple prestressed anchor cables 30 are arranged at intervals along the extension direction perpendicular to the overhanging section 12. The number of prestressed anchor cables 30 can correspond to the number of force piles 20, but the present application is not limited thereto.
[0037] When the raft 10 is loaded, the raft 10 will have a certain sliding force to the side of the overhanging section 12 under the action of gravity. In order to further enhance the stability, an anti-skid groove 40 can be arranged at the bottom of the inner extension section 11 to further offset the sliding force to the side of the slope. The anti-skid groove 40 is integrally formed and connected with the inner extension section 11 by reinforced concrete pouring. The anti-skid groove 40 can be arranged in the soil between the force pile 20 and the slope, and is spaced apart from the edge of the slope by a distance. Because the soil at the edge of the slope is relatively loose compared to the inside, excessive stress can easily cause the slope surface to slide, thereby affecting the stability of the overall structure.
[0038] In some embodiments, the anti-skid groove 40 is continuously arranged along the extension direction perpendicular to the overhanging section 12, which can more stably offset the sliding force to the side of the slope. Of course, the anti-skid groove 40 can also be arranged as multiple, and the multiple anti-skid grooves 40 are arranged at intervals along the extension direction perpendicular to the overhanging section 12. The present application does not limit the specific arrangement of the anti-skid groove 40, as long as it can more stably offset the sliding force to the side of the slope.
[0039] In summary, in the slope position anti-sliding overhanging raft foundation structure of the present application, the force pile 20 can provide uplift resistance to balance the gravity of the load above the overhanging section 12, preventing the overhanging section 12 from tilting to the side of the slope surface; the tension of the prestressed anchor cable 30 can provide a prestress to the raft 10 above the raft 10 to offset the gravity of the load above the raft 10, avoiding the sinking and deformation of the raft 10; and the anti-skid groove 40 can fix the position of the raft 10 on the top of the slope, avoiding the displacement of the raft 10 to the side of the slope surface. In this way, the present structure can ensure that the overhanging building does not slide at the slope position, meeting the anti-sliding stability of the overhanging building. Compared with the traditional reinforcement method, the present structure design is simpler, which can effectively shorten the construction period and reduce the construction cost. At the same time, the present structure is designed on the basis of mechanics, so that the building can extend from the slope and be more ornamental.
[0040] In the description of the specification, reference to "one embodiment", "certain embodiments", "some embodiments", "exemplary embodiments", "a specific example", or "some examples" etc., mean that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the above expressions in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, describing a particular feature, structure, material, or characteristic as included in an embodiment or example is intended to convey that the particular feature, structure, material, or characteristic is included in at least one embodiment or example of the application. Thus, appearances of the expressions "in one embodiment" or "in an embodiment" are not necessarily referring to the same embodiment.
[0041] Although the embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments could be made without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims
1. A slope position anti-slippage overhanging raft foundation structure, characterized by, The raft comprises an inner extension section and an overhanging section, the inner extension section is arranged on the top of the slope, the overhanging section extends from the inner extension section to the slope, and at least partially extends out of the top of the slope to be suspended; a force-bearing pile is arranged at the bottom of the inner extension section away from the overhanging section, the force-bearing pile extends to the depth of the slope and is fixed in the soil of the slope, the force-bearing pile is used to support and fix the raft and provide uplift resistance; a prestressed anchor cable is connected at one end to the end of the overhanging section away from the inner extension section, and at the other end to the soil of the slope, the prestressed anchor cable is used to provide prestress to the raft; a slide-resistant groove is arranged at the bottom of the inner extension section close to the overhanging section, the slide-resistant groove extends to the depth of the slope and is fixed in the soil of the slope, the slide-resistant groove is used to fix the raft and provide horizontal anti-slide force. The raft further comprises an anchor cushion beam arranged at the end of the overhanging section away from the inner extension section, and the prestressed anchor cable is connected at one end to the anchor cushion beam.
2. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The inner extension section is provided with a pile cap, the force-bearing pile is connected to the pile cap, and the cross section of the pile cap is larger than that of the force-bearing pile.
3. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The pile cap and the force-bearing pile are integrally connected by reinforced concrete pouring.
4. The slope location anti-slippage cantilever raft foundation construction according to claim 3, characterized in that, The slide-resistant groove and the inner extension section are integrally connected by reinforced concrete pouring.
5. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The number of force-bearing piles is multiple, and multiple force-bearing piles are arranged at intervals along the direction perpendicular to the extension direction of the overhanging section.
6. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The slide-resistant groove is arranged continuously along the direction perpendicular to the extension direction of the overhanging section; or 7. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The number of slide-resistant grooves is multiple, and multiple slide-resistant grooves are arranged at intervals along the direction perpendicular to the extension direction of the overhanging section. The slide-resistant groove is arranged at intervals with the slope surface.
8. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that, The number of prestressed anchor cables is multiple, and multiple prestressed anchor cables are arranged at intervals along the direction perpendicular to the extension direction of the overhanging section.
9. The slope location anti-slippage cantilever raft foundation construction according to claim 1, characterized in that,