Mechanically-connected assembly type prefabricated inclined supporting pile supporting structure
Through the prefabricated prefabricated inclined support pile structure with mechanical connection, the mechanical assembly of prefabricated inclined support piles and pressed beams or purlin beams has been solved in the existing technology of difficult connection quality control, slow construction and high cost, and efficient and fast construction and recycling effects have been achieved.
Patent Information
- Application Number
- CN202421772044.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing inclined support pile support structures have problems such as difficulty in quality control of connections, slow construction, high cost and unrecyclable.
The prefabricated prefabricated oblique support pile structure is adopted with mechanically connected prefabricated oblique support piles, and the mechanical assembly of prefabricated oblique support piles and pressed beams or purlin beams is used to install them using convex and concave font ends to achieve rapid splicing and connection.
The prefabrication rate and construction speed are improved, the cost is reduced, the structure is recyclable, and the quality control is relatively easy.
Smart Images
Figure CN222796444U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of foundation pit support, and in particular relates to a mechanically connected assembled prefabricated inclined support pile support structure. Background Art
[0002] For foundation pit support: Common foundation pit support structures, such as cast-in-place retaining structures, reinforced concrete supports or steel supports, etc., occupy a large area, are inconvenient to construct, and have high costs; the inclined support structure needs to be constructed in two steps, first constructing the middle bottom plate, and then excavating the earth under the inclined support, and it is impossible to achieve one-time excavation of earth; prefabricated reinforced concrete retaining structures, multi-row piles and multi-level supports, and inclined pile supports are suitable for open excavation construction, especially inclined pile supports, which can achieve one-time excavation of earth and have a lower cost.
[0003] According to the material of the pile body, the inclined pile support can be divided into concrete piles, steel pipe piles, lattice columns, etc. The connection form between the inclined pile and the top beam is generally in the form of direct anchoring into the top beam. At present, the inclined pile support adopts the method of directly anchoring the upper end of the inclined pile into the top beam, and the integral casting of the top beam is rigidly connected. The inclined pile connection mainly includes grouting sleeve connection, pre-buried steel plate welding, prefabricated steel connectors, etc. Among them: the grouting sleeve connection construction is troublesome, the connection quality control is difficult, the grouting material and grouting method are required to be high, the actual connection quality is often not ideal, and there is a problem that the grouting material needs to have a certain strength before construction; the pre-buried steel plate welding needs to be welded on the construction site, the construction organization is complex and inefficient, the labor cost is high, and the welding quality control is often difficult due to the influence of the environment; the use of prefabricated rigid connectors requires both pre-buried steel connection accessories and additional connectors, which is difficult to align in actual operation, and the connection construction operation of the pile body is complex and the overall cost is high.
[0004] Therefore, the current inclined support pile support structure has the defects of difficult connection quality control, slow construction, high cost and non-recyclability. Utility Model Content
[0005] The utility model aims to provide a mechanically connected assembled prefabricated inclined support pile supporting structure, which has a high prefabrication rate, fast construction speed, short cycle, recyclability, easy quality control and wide applicability.
[0006] The technical solution adopted by the utility model is:
[0007] A mechanically connected assembled prefabricated oblique support pile support structure comprises a prefabricated oblique support pile, the upper end of the prefabricated oblique support pile is connected to the capping beam or surrounding purlin beam of the surrounding pile row, and is spliced by a number of prefabricated sections along the line, and the lower part extends below the bottom surface of the foundation pit and is provided with a water stop steel plate at the junction with the basement floor; at the splicing of adjacent prefabricated sections, it comprises a convex end head and a concave end head, the convex end head comprises a convex end plate, a screw hole one distributed on the front convex part of the convex end plate, and an anchor rod one distributed on the rear part of the convex end plate, the front surface of the convex end plate is exposed to the outside, and the anchor rod one is anchored inside, and the concave end head comprises a concave end plate A plate, two screw holes distributed on both sides of the concave part of the concave end plate, two anchor rods distributed on the rear part of the concave end plate, the front surface of the concave end plate is exposed to the outside, and the two anchor rods are anchored inside, the front convex part of the convex end plate and the concave part of the concave end plate can be inserted together, the first screw hole is aligned with the second screw hole and are fastened with a screw and a nut; at the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, it includes a convex end head or a concave end head located at the upper end of the prefabricated inclined support pile, and a support located on the top beam or the surrounding purlin beam, the convex end head or the concave end head cooperates with the support and is fastened with a screw and a nut.
[0008] Preferably, the convex end plate is formed by integrally stamping a steel plate.
[0009] Preferably, the screw hole 1 is composed of a round tube 1 and a through hole 1, the two ends of the round tube 1 are welded on the convex end plate, and the through hole 1 is opened at positions corresponding to the two ends of the round tube 1 on the convex end plate.
[0010] Preferably, the concave-shaped end plate is formed by integrally stamping a steel plate.
[0011] Preferably, the screw hole 2 is composed of a round tube 2 and a through hole 2, the two ends of the round tube 2 are welded on the concave end plate, and the through hole 2 is opened at positions corresponding to the two ends of the round tube 2 on the concave end plate.
[0012] Preferably, the surfaces of the convex end plates and the concave end plates are provided with an anti-corrosion coating.
[0013] Preferably, at the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, the upper end of the prefabricated inclined support pile adopts a convex end cap, the support on the top beam or the surrounding purlin beam is a casting block cast integrally with the top beam or the surrounding purlin beam, and the casting block is provided with a concave end cap, the convex end cap at the upper end of the prefabricated inclined support pile cooperates with the concave end cap on the casting block and is fastened with screws and nuts.
[0014] Preferably, at the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, the upper end of the prefabricated inclined support pile adopts a concave end cap, and the support on the top beam or the surrounding purlin beam adopts a corbel, the corbel includes an embedded plate, an anchor plate, embedded screws, and a T-shaped plate. The embedded plate is embedded in the surface of the top beam or the surrounding purlin beam, the anchor plate is fixed to the embedded plate and anchored in the top beam or the surrounding purlin beam, the embedded screws are embedded in the top beam or the surrounding purlin beam and extend out of the embedded plate and fixed to the embedded plate, the vertical plate of the T-shaped plate is installed on the embedded plate by means of embedded screws and nuts, and the horizontal plate is fitted in the concave end cap and fastened with screws and nuts.
[0015] Preferably, the vertical plates of the T-shaped plate are provided with reinforcing steel bars, the horizontal plates are provided with a pair of clamping plates, the clamping plates are fixed to the vertical plates by welding, the reinforcing steel bars are inserted between the clamping plates and fixed by a welding machine, and the edges of the clamping plates are welded and sealed.
[0016] The beneficial effects of the utility model are:
[0017] The structure has a high prefabrication rate, especially the prefabricated inclined support piles, which can achieve a 100% prefabrication rate in the mining factory. The construction of the top beam or the surrounding purlin beam is not limited by the construction progress of the prefabricated inclined support piles, which effectively removes the constraints of the construction sequence of the two. The upper end and along the line of the prefabricated inclined support piles are mechanically assembled, and only the screws and nuts need to be installed after they are in place. There is no need to pour concrete on site or maintain it. The construction speed is fast and the cycle is short. The structure can be recycled. After the construction of the basement floor is completed, the screws and nuts at the joints of the prefabricated sections above the basement floor can be removed, and a certain number of prefabricated sections can be recycled. The prefabricated sections can be used for subsequent construction or other engineering construction, effectively saving costs; in this structure, convex end caps and concave end caps are mainly used for installation. As long as the accuracy of the convex end plates and concave end plates is properly controlled, the splicing gaps after prefabrication are extremely small, with high accuracy, high size matching, and easy quality control; in this structure, the convex end caps and concave end caps are highly standardized, and there is no need to change the form of the end plate in different usage scenarios. For the connection between the top beam or the surrounding purlin beam, it is only necessary to adjust the angle of the support. Square piles, round piles, etc. are suitable, and the applicability is wide. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1It is a schematic diagram of the mechanically connected assembled prefabricated inclined support pile support structure in the utility model, wherein A is the joint of adjacent prefabricated sections, B is the form one of the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, and C is the form two of the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam.
[0020] Figure 2 yes Figure 1 A is a schematic diagram of the adjacent prefabricated sections not being spliced together.
[0021] Figure 3 yes Figure 2 Schematic diagram of convex and concave terminals.
[0022] Figure 4 yes Figure 1 Schematic diagram of B when it is not connected.
[0023] Figure 5 yes Figure 1 Schematic diagram of C when it is not connected.
[0024] In the figure: 1-capping beam or surrounding purlin beam; 2-enclosing pile row; 3-prefabricated section; 4-basement floor; 5-waterstop steel plate; 6-convex end; 61-convex end plate; 62-screw hole one; 621-round tube one; 622-through hole one; 63-anchor rod one; 7-concave end; 71-concave end plate; 72-screw hole two; 721-round tube two; 722-through hole two; 73-anchor rod two; 8-screw rod; 9-nut; 10-casting block; 11-corbel; 11a-embedded screw rod; 11b-anchor plate; 11c-embedded plate; 11d-vertical plate of T-shaped plate; 11e-reinforcement steel bar; 11f-transverse plate of T-shaped plate. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. In addition, the terms "XX one", "XX two", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0027] The features and performance of the present application are further described in detail below in conjunction with the embodiments.
[0028] The present application discloses a mechanically connected assembled prefabricated oblique support pile support structure, including prefabricated oblique support piles; Figure 1 As shown, the upper end of the prefabricated inclined support pile is connected to the top beam or surrounding purlin beam 1 of the surrounding pile row 2, and is spliced by a number of prefabricated sections 3 along the line. The lower part extends below the bottom surface of the foundation pit and is provided with a water stop steel plate 5 at the junction with the basement floor 4; Figures 1 to 3 As shown, at the joint of adjacent prefabricated sections 3, a convex end cap 6 and a concave end cap 7 are included. The convex end cap 6 includes a convex end plate 61, a screw hole 62 distributed on the front convex part of the convex end plate 61, and an anchor rod 63 distributed on the rear part of the convex end plate 61. The front surface of the convex end plate 61 is exposed to the outside, and the anchor rod 63 is anchored inside. The concave end cap 7 includes a concave end plate 71, a screw hole 72 distributed on both sides of the concave part of the concave end plate 71, and an anchor rod 73 distributed on the rear part of the concave end plate 71. The front surface of the concave end plate 71 is exposed to the outside, and the anchor rod 73 is anchored inside. The convex part of the convex end plate 61 and the concave part of the concave end plate 71 can be inserted together, and the screw hole 62 is aligned with the screw hole 72 and is fastened by the screw 8 and the nut 9. Figure 1 , Figure 4 and Figure 5 As shown, at the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam 1, it includes a convex end head 6 or a concave end head 7 located at the upper end of the prefabricated inclined support pile, and a support located on the top beam or the surrounding purlin beam 1, and the convex end head 6 or the concave end head 7 cooperates with the support and is fastened by a screw 8 and a nut 9.
[0029] Regarding the convex-shaped terminal 6, in this embodiment, preferably, as Figure 2 and Figure 3 As shown: the convex end plate 61 is formed by integrally stamping a steel plate, which is convenient to manufacture; the screw hole 62 is composed of a round tube 621 and a through hole 622, both ends of the round tube 621 are welded to the convex end plate 61, and the through hole 622 is opened at the corresponding positions of the two ends of the round tube 621 on the convex end plate 61, which is convenient to manufacture; the anchor rod 63 is made of steel bars.
[0030] Regarding the concave end 7, in this embodiment, preferably, as Figure 2 and Figure 3 As shown: the concave end plate 71 is formed by integrally stamping a steel plate, which is convenient to manufacture; the second screw hole 72 is composed of a second round tube 721 and a second through hole 722, both ends of the second round tube 721 are welded to the concave end plate 71, and the second through hole 722 is opened at the corresponding positions of the two ends of the second round tube 721 on the concave end plate 71, which is convenient to manufacture; the second anchor rod 73 is made of steel bars.
[0031] In order to effectively enhance the corrosion resistance, the thickness of the convex end plate 61 and the concave end plate 71 may be increased, and / or an anti-corrosion coating may be provided on the surface of the convex end plate 61 and the concave end plate 71 .
[0032] During the prefabrication and transportation of the convex end cap 6 and the concave end cap 7, temporary sealing materials such as foam can be filled in the screw hole 1 62 and the screw hole 2 72 to prevent debris from entering. When the two are spliced, the temporary sealing materials can be removed.
[0033] The connection between the upper end of the prefabricated inclined support pile and the capping beam or the surrounding purlin beam 1 can be in various forms.
[0034] For example, form 1: see Figure 1 and Figure 4 The support on the top beam or the surrounding purlin beam 1 is a casting block 10 cast integrally with the top beam or the surrounding purlin beam 1, and the casting block 10 is provided with a concave end 7. The convex end 6 at the upper end of the prefabricated inclined support pile cooperates with the concave end 7 on the casting block 10 and is fastened by a screw 8 and a nut 9.
[0035] For example, form 2: see Figure 1 and Figure 5 The upper end of the prefabricated oblique support pile adopts a concave end head 7, and the support on the top beam or the surrounding purlin beam 1 adopts a corbel 11. The corbel 11 includes an embedded plate 11c, an anchor plate 11b, an embedded screw 11a, and a T-shaped plate. The embedded plate 11c is embedded in the surface of the top beam or the surrounding purlin beam 1, the anchor plate 11b is fixed to the embedded plate 11c and anchored in the top beam or the surrounding purlin beam 1, the embedded screw 11a is embedded in the top beam or the surrounding purlin beam 1 and extends out of the embedded plate 11c and is fixed to the embedded plate 11c, the vertical plate 11d of the T-shaped plate is installed on the embedded plate 11c through the embedded screw 11a and the nut 9, and the horizontal plate 11f is matched in the concave end head 7 and is fastened with the screw 8 and the nut 9. The embedded plate 11c, the anchor plate 11b, and the embedded screw 11a are welded as a whole in the factory, transported to the site after prefabrication, and cast as a whole with the top beam or the surrounding purlin beam 1 during construction. Figure 5 As shown, the vertical plate 11d of the T-shaped plate is provided with reinforcing steel bars 11e, and the horizontal plate 11f is provided with a pair of clamps, which are welded and fixed to the vertical plate 11d, and the reinforcing steel bars 11e are inserted between the clamps and fixed by a welding machine, and the edges of the clamps are welded and sealed. The top beam or the surrounding purlin beam 1 is in the form of a corbel 11, which can be prefabricated in the factory and directly installed on site, can be recycled, is easy to load and unload, and does not require additional cutting.
[0036] From the above scheme, we can know that:
[0037] The structure has a high prefabrication rate, especially the prefabricated oblique support piles can achieve a 100% prefabrication rate in the mining factory. The construction of the top beam or the surrounding purlin beam 1 is not limited by the construction progress of the prefabricated oblique support piles, which effectively removes the constraints of the construction sequence of the two. The upper end and the line of the prefabricated oblique support piles are mechanically assembled, and only the screws 8 and nuts 9 need to be installed after they are in place, without the need for on-site concrete pouring and maintenance, and the construction speed is fast and the cycle is short.
[0038] The structure can be recycled. After the construction of the basement floor 4 is completed, the screws 8 and nuts 9 at the joints of the prefabricated sections 3 above the basement floor 4 can be removed, and a certain number of prefabricated sections 3 can be recycled (in a better case, the supports in the form of corbels 11 on the top beam or the surrounding purlin beam 1 can also be recycled). The recycled prefabricated sections 3 can be used for subsequent construction or other engineering construction, effectively saving costs;
[0039] In this structure, the convex end cap 6 and the concave end cap 7 are mainly used for installation. As long as the precision of the convex end plate 61 and the concave end plate 71 is properly controlled, the splicing gap is extremely small after prefabrication, with high precision, high size matching, and easy quality control.
[0040] In this structure, the convex end cap 6 and the concave end cap 7 are highly standardized, and the form of the end plate does not need to be changed in different usage scenarios. For the connection between the top beam or the surrounding purlin beam 1, it is only necessary to adjust the angle of the support, and square piles, round piles and other forms are applicable, which has wide applicability. The above-described embodiments are part of the embodiments of this application, not all of them.
[0041] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.
Claims
1. A mechanically connected prefabricated inclined support pile support structure, characterized in that: It includes prefabricated oblique support piles, the upper ends of which are connected to the capping beams or surrounding purlins of the retaining pile rows, are spliced by several prefabricated sections along the line, and the lower parts extend below the bottom surface of the foundation pit and are provided with water-stop steel plates at the junction with the basement floor; at the splicing of adjacent prefabricated sections, it includes convex end heads and concave end heads, the convex end head includes a convex end plate, a screw hole one distributed on the convex part of the convex end plate, and an anchor rod one distributed on the rear part of the convex end plate, the front surface of the convex end plate is exposed to the outside, and the anchor rod one is anchored inside, and the concave end head includes a concave end plate, a screw hole one distributed on the concave end plate There are two screw holes on both sides of the concave part, and two anchor rods distributed at the rear of the concave end plate. The front surface of the concave end plate is exposed to the outside and the two anchor rods are anchored inside. The front convex part of the convex end plate and the concave part of the concave end plate can be inserted together. The first screw hole is aligned with the second screw hole and is fastened with a screw and a nut; at the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, it includes a convex end head or a concave end head located at the upper end of the prefabricated inclined support pile, and a support located on the top beam or the surrounding purlin beam. The convex end head or the concave end head cooperates with the support and is fastened with a screw and a nut.
2. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: The convex end plate is formed by integrally stamping a steel plate.
3. The mechanically connected prefabricated inclined support pile support structure according to claim 2, characterized in that: The screw hole 1 is composed of a round tube 1 and a through hole 1. The two ends of the round tube 1 are welded on the convex end plate. The through hole 1 is arranged at the corresponding positions of the two ends of the round tube 1 on the convex end plate.
4. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: The surface of the convex end plate is provided with an anti-corrosion coating.
5. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: The concave end plate is formed by integrally stamping a steel plate.
6. The mechanically connected prefabricated inclined support pile support structure according to claim 5, characterized in that: The screw hole 2 is composed of a round tube 2 and a through hole 2. The two ends of the round tube 2 are welded on the concave end plate. The through hole 2 is arranged at positions corresponding to the two ends of the round tube 2 on the concave end plate.
7. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: The surface of the concave end plate is provided with an anti-corrosion coating.
8. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: At the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, the upper end of the prefabricated inclined support pile adopts a convex end cap, and the support on the top beam or the surrounding purlin beam is a casting block cast integrally with the top beam or the surrounding purlin beam, and the casting block is provided with a concave end cap, and the convex end cap at the upper end of the prefabricated inclined support pile cooperates with the concave end cap on the casting block and is fastened with screws and nuts.
9. The mechanically connected prefabricated inclined support pile support structure according to claim 1, characterized in that: At the connection between the upper end of the prefabricated inclined support pile and the top beam or the surrounding purlin beam, the upper end of the prefabricated inclined support pile adopts a concave end cap, and the support on the top beam or the surrounding purlin beam adopts a corbel, which includes an embedded plate, an anchor plate, embedded screws, and a T-shaped plate. The embedded plate is embedded in the surface of the top beam or the surrounding purlin beam, the anchor plate is fixed to the embedded plate and anchored in the top beam or the surrounding purlin beam, the embedded screws are embedded in the top beam or the surrounding purlin beam and extend out of the embedded plate and fixed to the embedded plate, the vertical plate of the T-shaped plate is installed on the embedded plate through the embedded screws and nuts, and the horizontal plate is fitted in the concave end cap and fastened with the screws and nuts.
10. The mechanically connected prefabricated inclined support pile support structure according to claim 9, characterized in that: The vertical plate of the T-shaped plate is provided with reinforcing steel bars, and the horizontal plate adopts a pair of clamps, which are welded and fixed to the vertical plate. The reinforcing steel bars are extended between the clamps and fixed by a welding machine, and the edges of the clamps are welded and closed.