Steel pipe pile and enclosure structure
By designing steel pipe piles with first and second connections, the problem of low assembly smoothness of steel pipe piles is solved, achieving more efficient assembly and better waterproofing effect.
Patent Information
- Application Number
- CN202420972651.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In the deep foundation pit enclosure structure design, the parallel connection method of steel pipe piles affects the smoothness of steel pipe pile assembly due to the large resistance between the entrances.
A steel pipe pile is designed, including a pipe body, a first connector and a second connector, the first connector and the second connector extend axially in the pipe body. Through the cooperation of these connectors, a combined connection of a plurality of steel pipe piles is realized, and a flow guide space is formed at the connection to reduce resistance.
Through this design, the assembly smoothness of steel pipe piles is improved, and the sealing and waterproofing effect of the connection are enhanced through the formation of the flow guide space.
Smart Images
Figure CN222834910U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit enclosure, in particular to a steel pipe pile and an enclosure structure. Background Art
[0002] During deep excavation, there will be a sudden change between the natural ground level and the excavated building cushion level. Therefore, a retaining structure will be needed to support the ground and prevent groundwater from entering. At present, most of the designs of deep foundation pit retaining structures adopt traditional retaining systems. The main retaining systems include the following two types: bored cast-in-place piles + water-stop curtain retaining system or steel pipe piles + water-stop curtain retaining system. Among them, steel pipe piles have the advantages of thin-walled driving and unobvious soil squeezing effect. In the related technology, there is a retaining method with parallel connection of steel pipe piles. In this method, adjacent steel pipe piles are connected by tongue and groove. However, when the steel pipe piles are driven in, there is a large resistance between the tongue and groove, which affects the smoothness of the steel pipe pile assembly. Utility Model Content
[0003] The main purpose of the utility model is to provide a steel pipe pile and a surrounding structure, aiming to improve the smoothness of the steel pipe pile during assembly.
[0004] To achieve the above-mentioned purpose, the utility model provides a steel pipe pile, which is applied to foundation pit protection, and the steel pipe pile includes a pipe body and a first connecting piece and a second connecting piece connected to the pipe body, the first connecting piece and the second connecting piece are arranged on the surface of the pipe body at intervals, the first connecting piece and the second connecting piece are both extended along the axial direction of the pipe body, the first connecting piece is used to connect to the second connecting piece of another pipe body, and the second connecting piece is used to connect to the first connecting piece of another pipe body, so that a plurality of the steel pipe piles are combined and connected;
[0005] Wherein, the first connecting member and the second connecting member are connected to form a flow guide space.
[0006] In one embodiment, the first connecting member includes a connecting section and a limiting section arranged at an angle, one end of the connecting section is connected to the tube body, and the other end of the connecting section is connected to the limiting section, the second connecting member forms a groove and a notch connected to the groove, the groove is used to limit the limiting section, the notch is used for the connecting section to pass through, and the groove wall of the groove is also provided with a depression, wherein the limiting section and the depression enclose a diversion space.
[0007] In one embodiment, the groove has a bottom wall and a side wall connected to each other, and the recess is provided on the bottom wall and / or the side wall.
[0008] In one embodiment, the bottom wall and the notch are arranged opposite to each other, and the recess is arranged on the bottom wall and opposite to the notch.
[0009] In one embodiment, the cross-sectional shape of the depression perpendicular to the axial direction is trapezoidal, and / or the depth of the depression is 4 mm.
[0010] In one embodiment, the connecting section and the limiting section are vertically arranged, and the limiting section includes a first section and a second section connected to each other, the first section and the second section are connected to the connecting section and extend out of two sides of the connecting section respectively, and the length of the first section is greater than the length of the second section.
[0011] In one embodiment, a cross section of the tube body perpendicular to the axial direction is circular, and the first connecting member and the second connecting member are located in the same diameter direction.
[0012] In one embodiment, the surface of the first connecting member has a smooth transition; and / or the surface of the second connecting member has a smooth transition.
[0013] In one embodiment, the first connecting member and the second connecting member are connected to the tube body by welding.
[0014] The utility model also provides a retaining structure, which comprises a plurality of steel pipe piles as described above, and the plurality of steel pipe piles are connected by the first connecting member and the second connecting member.
[0015] In the technical solution of the utility model, the steel pipe pile consists of a pipe body, a first connecting piece and a second connecting piece. The first connecting piece and the second connecting piece are arranged on the pipe body at intervals along the axial extension of the pipe body. When one steel pipe pile is driven into the formation, another steel pipe pile can be driven into the formation in parallel. The two steel pipe piles are connected by the cooperation of the first connecting piece and the second connecting piece. After the first connecting piece and the second connecting piece are joined, a diversion space is formed, that is, the first connecting piece and the second connecting piece are not completely fitted, so as to reduce the resistance when the first connecting piece and the second connecting piece are combined, and improve the smoothness of the steel pipe pile when the first connecting piece and the second connecting piece are spliced. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of the structure of a steel pipe pile in an embodiment of the utility model;
[0018] Figure 2A schematic structural diagram of a first connecting member in an embodiment of the utility model;
[0019] Figure 3 A schematic diagram of the structure of a second connecting member in an embodiment of the utility model;
[0020] Figure 4 A schematic structural diagram of a combination of a first connecting member and a second connecting member in an embodiment of the present utility model;
[0021] Figure 5 The present invention is a schematic structural diagram of a steel pipe pile assembly provided by the present invention.
[0022] Description of Figure Numbers:
[0023] 100. Steel pipe pile; 1. First connecting piece; 11. Connecting section; 12. Limiting section; 121. First section; 122. Second section; 2. First connecting piece; 21. Groove; 211. Notch; 212. Depression; 3. Pipe body; 4. Diversion space.
[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0028] Please refer to Figures 1 to 5 As shown, the utility model proposes a steel pipe pile 100, which is applied to foundation pit retaining. The steel pipe pile 100 includes a pipe body 3 and a first connecting member 1 and a second connecting member 2 connected to the pipe body 3. The first connecting member 1 and the second connecting member 2 are spaced apart on the surface of the pipe body 3. The first connecting member 1 and the second connecting member 2 are both extended along the axial direction of the pipe body 3. The first connecting member 1 is used to connect the second connecting member 2 of another pipe body 3, and the second connecting member 2 is used to connect the first connecting member 1 of another pipe body 3, so that a plurality of steel pipe piles 100 are connected in combination; wherein, the first connecting member 1 and the second connecting member 2 are connected to enclose a diversion space 4.
[0029] In this embodiment, the steel pipe pile 100 is used to be driven into the stratum to form a retaining structure, so that during the excavation of the foundation pit, the retaining structure can support the ground and prevent groundwater from entering the foundation pit, so as to facilitate excavation construction. The steel pipe pile 100 is composed of a pipe body 3, a first connecting member 1 and a second connecting member 2. The first connecting member 1 and the second connecting member 2 are arranged on the pipe body 3 along the axial extension of the pipe body 3. When one steel pipe pile 100 is driven into the stratum, another steel pipe pile 100 can be driven into the stratum in parallel. The two steel pipe piles 100 are connected by the cooperation of the first connecting member 1 and the second connecting member 2. After the first connecting member 1 and the second connecting member 2 are joined, a diversion space 4 is formed, that is, the first connecting member 1 and the second connecting member 2 are not completely fitted, so as to reduce the resistance when the first connecting member 1 and the second connecting member 2 are combined, and improve the smoothness of the steel pipe pile 100 when the first connecting member 1 and the second connecting member 2 are spliced. At the same time, when the first connector 1 and the second connector 2 are connected, due to the soil squeezing effect, the diversion space 4 is densely filled with stratum soil and has certain sealing and water blocking properties, thereby improving the waterproof effect of the joint of the first connector 1 and the second connector 2.
[0030] It can be understood that the first connecting member 1 and the second connecting member 2 are generally configured as a limiting sliding groove and a limiting protrusion respectively, so that when two steel pipe piles 100 are assembled, the first connecting member 1 and the second connecting member 2 are slidably matched to complete the connection.
[0031] In the embodiment of the present utility model, Figures 2 to 4 As shown, the first connecting member 1 includes a connecting section 11 and a limiting section 12 set at an angle, one end of the connecting section 11 is connected to the tube body 3, and the other end of the connecting section 11 is connected to the limiting section 12. The second connecting member 2 forms a groove 21 and a notch 211 connected to the groove 21, the groove 21 is used to limit the limiting section 12, the notch 211 is used for the connecting section 11 to pass through, and the groove wall of the groove 21 is also provided with a recess 212, wherein the limiting section 12 and the recess 212 enclose a guide space 4.
[0032] In this embodiment, the first connector 1 is composed of a connecting section 11 and a limiting section 12, and the second connector 2 encloses a groove 21 and a notch 211 connected to the groove 21. When the first connector 1 and the second connector 2 are combined, the first connector 1 slides in from one end of the second connector 2. At this time, the limiting section 12 slides along the groove 21, and the connecting section 11 is inserted into the notch 211 and slides along the notch 211. After the adjacent steel pipe piles 100 are combined, the first connector 1 and the second connector 2 can limit the pipe body 3 in a plane perpendicular to the axial direction of the pipe body 3. The groove wall of the groove 21 is provided with a recess 212. When the first connector 1 and the second connector 2 are connected, the limiting section 12 does not extend into the recess 212, but is parallel to the opening of the recess 212, thereby enclosing the recess 212 to form a guide space 4.
[0033] Optionally, the first connecting member 1 may be configured as a T-shaped lock, and the second connecting member 2 may be configured as a C-shaped lock, which is not specifically limited herein.
[0034] In the embodiment of the present invention, the groove 21 has a bottom wall and a side wall connected to each other, and the recess 212 is disposed on the bottom wall and / or the side wall.
[0035] In this embodiment, the recess 212 can be arranged on the bottom wall and / or the side wall. Preferably, the bottom wall is arranged opposite to the notch 211, and the recess 212 is arranged on the bottom wall and opposite to the notch 211. The recess 212 can be arranged opposite to or offset from the notch 211, which is not specifically limited here. In actual implementation, the recess 212 is arranged at the center line of the bottom of the groove 21, which is conducive to the second connector 2 being able to fit the tube body 3 more closely, thereby ensuring the connection strength between the second connector 2 and the tube body 3.
[0036] In the embodiment of the present utility model, Figure 3 As shown, the cross-sectional shape of the recess 212 perpendicular to the axial direction is trapezoidal, and / or the depth of the recess 212 is 4 mm.
[0037] In this embodiment, the cross-sectional shape of the recess 212 is a trapezoid, with the upper base of the trapezoid being the bottom wall of the recess 212, the lower base of the trapezoid being the opening of the recess 212, the depth of the recess 212 being the height of the trapezoid, and the depth of the recess 212 being 4 mm. In this way, when the first connector 1 and the second connector 2 are joined, the soil is easier to fill and compact in the recess 212. In one embodiment, the thickness of the groove wall of the groove 21 is approximately 10 mm, the width of the notch 211 of the groove 21 is approximately 20 mm, and the opening of the recess 212 is approximately 17 mm. The thickness of the connecting section 11 of the first connector 1 is 10 mm to 12 mm, and the thickness of the limiting section 12 of the first connector 1 is approximately 12 mm, which is not specifically limited here.
[0038] In the embodiment of the present utility model, Figure 2 and Figure 4 As shown, the connecting section 11 and the limiting section 12 are vertically arranged, and the limiting section 12 includes a first section 121 and a second section 122 connected to each other. The first section 121 and the second section 122 are connected to the connecting section 11 and extend out of both sides of the connecting section 11 respectively. The length of the first section 121 is greater than the length of the second section 122.
[0039] In this embodiment, the connecting section 11 and the limiting section 12 are vertically connected, the limiting section 12 is composed of a first section 121 and a second section 122, the first connecting member 1 is roughly T-shaped, the first section 121 and the second section 122 extend out of the two sides of the connecting section 11 respectively, and at the same time, the length of the first section 121 is greater than the length of the second section 122, the groove 21 and the notch 211 of the groove 21 are arranged corresponding to the limiting section 12 and the connecting section 11, and no specific limitation is made here. The cross-sectional size of the groove 21 is greater than the cross-sectional size of the limiting section 12, and the width of the notch 211 of the groove 21 is greater than the thickness of the connecting section 11, so as to reduce the resistance when the first connecting member 1 slides into the second connecting member 2, so as to facilitate the connection between the first connecting member 1 and the second connecting member 2.
[0040] In the embodiment of the present utility model, Figure 1 As shown, the cross section of the tube body 3 perpendicular to the axial direction is circular, and the first connecting member 1 and the second connecting member 2 are located in the same diameter direction.
[0041] In this embodiment, the tube body 3 is arranged in a cylindrical shape, and the first connecting member 1 and the second connecting member 2 are located in the diameter direction so that the steel pipe piles 100 are assembled and arranged side by side, that is, the center angle formed by the first connecting member 1 and the second connecting member 2 and the line connecting the center of the cross section of the tube body 3 is 180°. It can be understood that the center angle of the line connecting the first connecting member 1 and the second connecting member 2 and the center of the circle can also be any angle less than 180°. Optionally, multiple first connecting members 1 and second connecting members 2 can be provided to meet the connection requirements of the steel pipe piles 100 at different angles of the foundation pit.
[0042] In the embodiment of the present utility model, Figure 4 As shown, the surface of the first connecting member 1 has a smooth transition; and / or the surface of the second connecting member 2 has a smooth transition.
[0043] In this embodiment, the surfaces of the first connecting member 1 and the second connecting member 2 are in a smooth transition, which further reduces the resistance when the first connecting member 1 slides into the second connecting member 2 and improves the smoothness of the steel pipe pile 100 during assembly.
[0044] In the embodiment of the present utility model, Figure 1 As shown, the first connecting member 1 and the second connecting member 2 are connected to the pipe body 3 by welding.
[0045] In this embodiment, the tube body 3, the first connecting member 1 and the second connecting member 2 are made of steel, and the first connecting member 1 and the second connecting member 2 are connected by welding.
[0046] The utility model also provides a kind of enclosure structure, such as Figure 5 As shown, the enclosure structure includes a plurality of steel pipe piles 100 as described above. The specific structure of the steel pipe piles 100 refers to the above embodiment. Since the enclosure structure adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the plurality of steel pipe piles 100 are connected by the first connecting member 1 and the second connecting member 2.
[0047] By adopting the steel pipe piles 100 as described above for foundation pit enclosure, an integral enclosure structure integrating retaining and anti-seepage properties is formed, and the steel pipe piles 100 have the properties of high strength, high rigidity and high stability; during the pile sinking process, the steel pipe piles 100 are driven along the thin wall, and the soil squeezing effect is not obvious, and the construction process is simple and the construction efficiency is high; the steel pipe piles 100 can be connected to each other through the first connecting member 1 and the second connecting member 2, and there is no need to arrange a water-stop curtain outside the pit, which reduces the construction noise and the generation of construction waste, and conforms to the concept of green construction.
[0048] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A steel pipe pile, used for foundation pit protection, characterized in that: The steel pipe pile comprises a pipe body and a first connecting piece and a second connecting piece connected to the pipe body, the first connecting piece and the second connecting piece are arranged on the surface of the pipe body at intervals, the first connecting piece and the second connecting piece are both extended along the axial direction of the pipe body, the first connecting piece is used to connect to the second connecting piece of another pipe body, and the second connecting piece is used to connect to the first connecting piece of another pipe body, so that a plurality of the steel pipe piles are combined and connected; Wherein, the first connecting member and the second connecting member are connected to enclose a flow guiding space; The first connecting member includes a connecting section and a limiting section arranged at an angle, one end of the connecting section is connected to the tube body, and the other end of the connecting section is connected to the limiting section. The second connecting member forms a groove and a notch connected to the groove, the groove is used to limit the limiting section, and the notch is used for the connecting section to pass through. The groove wall of the groove is also provided with a depression, wherein the limiting section and the depression enclose a diversion space.
2. The steel pipe pile according to claim 1, characterized in that: The groove has a bottom wall and a side wall connected to each other, and the recess is arranged on the bottom wall and / or the side wall.
3. The steel pipe pile according to claim 2, characterized in that: The bottom wall is arranged opposite to the notch, and the recess is arranged on the bottom wall and opposite to the notch.
4. The steel pipe pile according to any one of claims 1 to 3, characterized in that: The cross-sectional shape of the depression perpendicular to the axial direction is trapezoidal, and / or the depth of the depression is 4 mm.
5. The steel pipe pile according to claim 1, characterized in that: The connecting section and the limiting section are vertically arranged, and the limiting section includes a first section and a second section connected to each other. The first section and the second section are connected to the connecting section and extend out of two sides of the connecting section respectively, and the length of the first section is greater than the length of the second section.
6. The steel pipe pile according to claim 1, characterized in that: The cross section of the tube body perpendicular to the axial direction is circular, and the first connecting member and the second connecting member are located in the same diameter direction.
7. The steel pipe pile according to claim 1, characterized in that: The surface of the first connecting member has a smooth transition; and / or the surface of the second connecting member has a smooth transition.
8. The steel pipe pile according to claim 1, characterized in that: The first connecting member and the second connecting member are connected to the pipe body by welding.
9. A protective structure, characterized in that: The enclosure structure comprises a plurality of steel pipe piles according to any one of claims 1 to 8, and the plurality of steel pipe piles are connected by the first connecting member and the second connecting member.