Steel pipe inclined support bottom supporting structure

Abstract

The utility model relates to the technical field of foundation pit supporting, in particular to a steel pipe inclined support bottom supporting structure which is installed on an installation base body and comprises a triangular support, a pre-buried bottom plate and a plurality of pre-buried steel bars, all the pre-buried steel bars and the pre-buried bottom plate are pre-buried in the installation base body, at least one side face of the pre-buried bottom plate is exposed out of the installation base body, and the triangular support is arranged on the installation base body. The embedded bottom plate is provided with a plurality of penetrating holes matched with the embedded steel bars, the outward ends of all the embedded steel bars are arranged in the corresponding penetrating holes in a penetrating mode, the outward ends of all the embedded steel bars are welded and fixed to the embedded bottom plate, the triangular support is welded to the outward side of the embedded bottom plate, and the triangular support is welded to the outward side of the embedded bottom plate. The triangular support is used for being connected with an inclined supporting steel pipe. The steel pipe inclined support bottom supporting structure is easy to construct and convenient to clean in the later period.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit support technical field, concretely relates to a steel pipe inclined support bottom support structure. BACKGROUND

[0002] Steel pipe inclined support is mostly applied in the field of building engineering deep foundation pit support, especially in the city center zone, the support structure is not allowed to exceed the land red line, the traditional horizontal inner support support structure has a great influence on the foundation pit earthwork excavation and basement construction period, and the steel pipe inclined support is a more suitable choice.

[0003] At present, the bottom of the steel pipe inclined support has the following methods: 1, connected with the side surface of the support pile, the steel support is inclined into the basement embedded bottom plate, for example, the technical scheme disclosed in the patent CN202121889691.7 - front inclined pile of foundation pit support system, the connection mode is not conducive to the later hole plugging, and the joint is prone to water leakage; 2, the basement embedded bottom plate is made into a reinforced concrete bracket, and is connected with the steel support, for example, the technical scheme disclosed in the patent CN202020390424.4 - a safe foundation pit support structure, although the method solves the risk of joint water leakage, the reinforced concrete bracket is not suitable for cutting off in the later period, and the cost is also high. UTILITY MODEL CONTENTS

[0004] In order to overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide a steel pipe inclined support bottom support structure, which is simple to build and convenient to remove in the later period.

[0005] In order to solve the above problems, the technical scheme adopted by the utility model is as follows:

[0006] A steel pipe inclined support bottom support structure is installed on an installation base, comprising a triangular support, an embedded bottom plate and a plurality of embedded steel bars, all the embedded steel bars and the embedded bottom plate are embedded in the installation base, at least one side surface of the embedded bottom plate is exposed to the installation base, a plurality of perforations matched with the embedded steel bars are arranged on the embedded bottom plate, the end of the outer end of all the embedded steel bars is arranged in the corresponding perforation, the outer end of all the embedded steel bars is welded and fixed with the embedded bottom plate, the triangular support is welded on the outer side of the embedded bottom plate, and the triangular support is used for connecting the inclined support steel pipe.

[0007] Further, the part of all the embedded steel bars between the corresponding perforation inner wall and the corresponding perforation is welded and fixed, the end of the outer end of all the embedded steel bars is flush with the end face of the outer end of the corresponding perforation or does not protrude from the perforation, and the end of the outer end of all the embedded steel bars is welded and fixed with the outer side surface of the embedded bottom plate.

[0008] Further, the end of the through hole near the end of the installation base is provided with a bevel, the outer wall of the embedded steel bar is welded and fixed with the bevel, and the formed welding seam fills the bevel.

[0009] Further, the installation base is a basement floor, the embedded steel bar and the embedded floor are embedded in the basement floor, and one side of the embedded floor outwardly protrudes from the top surface of the basement floor.

[0010] Further, the basement floor is provided with a mounting hole, a support pile is poured in the mounting hole, the top of the support pile is lower than the top surface of the basement floor, the embedded steel bar and the embedded floor are embedded on the top of the support pile, and a water stop expansion strip is arranged between the peripheral side of the support pile and the inner wall of the mounting hole.

[0011] Further, a plurality of embedded steel bars are arranged between the bottom of the mounting hole and the support pile.

[0012] Further, the triangular support includes an end plate and at least two triangular rib plates, one side of the inclined edge of all the triangular rib plates is welded in parallel on the embedded floor, the end plate is welded on the mutually parallel side edges of all the triangular rib plates, and the lower end of the end plate is welded and fixed with the embedded floor; the end plate is used for connecting the inclined support steel pipe.

[0013] Further, a plurality of threaded holes are arranged on the end plate, and the inclined support steel pipe is connected and fixed with the end plate by means of bolts penetrating through the threaded holes.

[0014] Further, the end plate and the corresponding end of the inclined support steel pipe are fixed by welding, and a plurality of connecting rib plates are arranged between the peripheral side of the inclined support steel pipe and the end plate.

[0015] Further, one side of each of the two triangular rib plates facing each other is provided with a reinforcing rib plate, and the reinforcing rib plate is connected with the embedded floor.

[0016] Compared with the prior art, the beneficial effects of the steel pipe inclined support bottom support structure are as follows:

[0017] The steel pipe inclined support bottom support structure of the utility model embeds the embedded steel bar and the embedded floor on the installation base, so that the forming construction is facilitated, the strength after forming is guaranteed, the embedded steel bar and the embedded floor are designed to be welded, the connection strength of the two is guaranteed, the embedded floor can be disassembled from the embedded steel bar according to the actual situation in the later period, the triangular support is welded on one side of the embedded floor outwardly, the installation is convenient, the stability is guaranteed, the triangular support is convenient to disassemble according to the demand in the later period, the use convenience is improved, and the overall cost is low.

[0018] The utility model will be made further detailed description below combining with the drawings and specific embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the installation structure schematic diagram of the utility model embodiment;

[0020] Figure 2 It is the partial structure schematic diagram of the utility model embodiment;

[0021] Figure 3 It is the structure schematic diagram of pre-buried bottom plate and pre-buried steel bar connection in the utility model embodiment;

[0022] Figure 4 It is the installation structure schematic diagram of another utility model embodiment.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Mounting base 10, basement bottom plate 11, mounting hole 12, support pile 13, water stop expansion strip 14;

[0025] Triangular support 20, end plate 21, triangular rib plate 22, connecting rib 23;

[0026] Pre-buried bottom plate 30, perforation 31;

[0027] Pre-buried steel bar 40;

[0028] Inclined support steel pipe 50. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following combining with the drawings and embodiment, the utility model is further detailed. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0030] Referring to Figures 1 to 3 The utility model discloses a steel pipe inclined support bottom support structure shown in the drawing, is installed on mounting base 10, and includes triangular support 20, pre-buried bottom plate 30 and a plurality of pre-buried steel bars 40, all pre-buried steel bars 40 and pre-buried bottom plate 30 are pre-buried in mounting base 10, at least one side of pre-buried bottom plate 30 exposes mounting base 10, pre-buried bottom plate 30 is provided with a plurality of perforations 31 that are adapted with pre-buried steel bars 40, all the end of the outward end of pre-buried steel bars 40 is arranged in corresponding perforation 31, and all the outward end of pre-buried steel bars 40 is welded and fixed with pre-buried bottom plate 30, triangular support 20 is welded on the outward side of pre-buried bottom plate 30, and triangular support 20 is used for connecting inclined support steel pipe 50.

[0031] In the present application, the other end of the inclined support steel pipe 50 directly supports the other end of the deep foundation pit support. Among them, the installation base body 10 is the basement bottom plate 11, the embedded steel bars 40 and the embedded bottom plate 30 are embedded in the basement bottom plate 11, and the outer side of the embedded bottom plate 30 protrudes from the top surface of the basement bottom plate 11. The outer side of the embedded bottom plate 30 is not flush with the top surface of the basement bottom plate 11, and the main purpose is to facilitate the later removal of the embedded bottom plate 30, and only the embedded steel bars 40 are left on the basement bottom plate 11. Of course, in some embodiments, the embedded bottom plate 30 can also be left on the basement bottom plate 11, and only the triangular support 20 can be removed, at this time the embedded bottom plate 30 cannot protrude too much from the plane where the basement bottom plate 11 is located, so as to facilitate the later leveling of the embedded bottom plate 30 and the area where the plane of the basement bottom plate 11 is located.

[0032] In addition, in order to facilitate the removal of the embedded bottom plate 30, the welding between the embedded steel bars 40 and the perforations 31 is actually only carried out between the outer end of the embedded steel bars 40 and the end surface of the perforations 31, which facilitates the later polishing and removal of the whole embedded bottom plate 30. Of course, in some embodiments, the outer end of the embedded steel bars 40 forms a welding head, which can be welded and fixed on the embedded bottom plate 30 in advance, and the welding head can be polished directly in the later stage, so as to realize the separation of the two while ensuring the connection strength between them.

[0033] The steel pipe inclined support bottom support structure pre-embeds the embedded steel bars 40 and the embedded bottom plate 30 on the installation base body 10, which facilitates the forming and construction, and ensures the strength after forming. In addition, the welding design between the embedded steel bars 40 and the embedded bottom plate 30 can not only ensure the connection strength between them, but also can be disassembled from the embedded steel bars 40 according to the actual situation in the later stage; at the same time, the triangular support 20 is welded on the outer side of the embedded bottom plate 30, which is convenient to install and has good stability, and is also convenient to disassemble according to the needs in the later stage, improves the convenience of use, and has low overall cost.

[0034] In the above embodiments, in order to facilitate the later removal and ensure the welding strength, all the embedded steel bars 40 are welded and fixed between the part of the embedded steel bars 40 located in the inner wall of the corresponding perforation 31 and the inner wall of the corresponding perforation 31, all the outer end of the embedded steel bars 40 is flush with the end surface of the outer end of the corresponding perforation 31 or does not protrude from the perforation 31, and all the outer end of the embedded steel bars 40 is welded and fixed with the outer side of the embedded bottom plate 30. The workers only need to grind off the weld between the outer end of the embedded steel bars 40 and the outer side of the embedded bottom plate 30.

[0035] Of course in some embodiments, the whole pre-embedded bottom plate 30 is not removed later, and it is left on the installation base body 10 together with the pre-embedded steel bars 40. For this purpose, in an improved embodiment of the present application, the port of the perforation 31 near one end of the installation base body 10 is provided with a bevel, and the outer wall of the pre-embedded steel bar 40 is welded and fixed between the bevel, and the formed weld seam fills the bevel. Such a design can realize welding and fixing of the pre-embedded steel bar 40 at both ends of the perforation 31, and ensure the strength between the pre-embedded part composed of the pre-embedded steel bar 40 and the pre-embedded bottom plate 30 and the installation base body 10.

[0036] Referring to Figure 4 In an improved embodiment of the present application, in addition to designing the steel pipe inclined support bottom support structure directly on the basement floor 11, other styles can also be designed, which are convenient for using cement mortar to smooth the installation position of the whole pre-embedded bottom plate 30 later, and ensure the structural flatness of the basement floor 11. Among them, the basement floor 11 is provided with an installation hole 12, the support pile 13 is poured in the installation hole 12, the top of the support pile 13 is lower than the top surface of the basement floor 11, the pre-embedded steel bars 40 and the pre-embedded bottom plate 30 are pre-embedded on the top of the support pile 13, and the water stop expansion strip 14 is arranged between the circumferential side of the support pile 13 and the inner wall of the installation hole 12. The installation hole 12 is a reserved hole, the basement floor 11 is first formed and solidified, and then the support pile 13 is formed. Since the whole support pile 13 is located in the installation hole 12, the structure of the support pile 13 is very stable, and the support strength is sufficient. The design of the water stop expansion strip 14 facilitates the sealing of the gap between the outer side of the support pile 13 and the inner wall of the installation hole 12 later, and improves the waterproofness.

[0037] When the installation hole 12 is constructed first, in order to ensure the strength of the support pile 13 later, in the above improved embodiment, a plurality of pre-embedded steel bars 40 are also arranged between the bottom of the installation hole 12 and the support pile 13. By reserving the pre-embedded steel bars 40 on the bottom of the installation hole 12, the strength of the support pile 13 itself and the connection strength between the support pile 13 and the bottom of the installation hole 12 can be effectively ensured when the support pile 13 is constructed later.

[0038] Referring to Figures 1 to 2In one embodiment of the present application, in order to facilitate the later construction and have sufficient installation strength, the triangular support 20 comprises an end plate 21 and at least two triangular rib plates 22, one side of the inclined edge of all the triangular rib plates 22 is parallel welded on the embedded bottom plate 30, the end plate 21 is welded on the mutually parallel side edges of all the triangular rib plates 22, and the lower end of the end plate 21 is welded and fixed with the embedded bottom plate 30; the end plate 21 is used for connecting the inclined support steel pipe 50. Among them, three triangular rib plates 22 are provided, which are parallel welded on the embedded bottom plate 30. The angles of the three corners of the triangular rib plate 22 are designed according to the actual requirements, which need to ensure that the end plate 21 is perpendicular to the axis of the inclined support steel pipe 50 after being welded and fixed with the triangular rib plate 22, so as to ensure the support strength of the whole structure. Further, in one embodiment, in order to ensure the strength, one side of two triangular rib plates 22 is provided with a reinforcing rib plate, and the reinforcing rib plate is connected with the embedded bottom plate 30.

[0039] Among them, in one embodiment, in order to facilitate the connection of the inclined support steel pipe 50, a plurality of threaded holes are arranged on the end plate 21, and the inclined support steel pipe 50 is connected and fixed with the end plate 21 by means of bolts penetrating through the threaded holes. Of course, in an improved embodiment, the end plate 21 and the corresponding end of the inclined support steel pipe 50 are fixed by welding, and a plurality of connecting ribs 23 are arranged between the circumferential side of the inclined support steel pipe 50 and the end plate 21, which are preferably welded. The main reason is that the whole triangular structure 20 needs to be removed later, so that the inclined support steel pipe 50 can be removed together, which reduces the disassembly process and improves the work efficiency.

[0040] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. A steel pipe inclined support bottom support structure, installed on an installation base, characterized in that, The system includes a triangular support, an embedded base plate, and several embedded reinforcing bars. All the embedded reinforcing bars and the embedded base plate are embedded in the mounting base. At least one side of the embedded base plate is exposed in the mounting base. The embedded base plate is provided with several through holes adapted to the embedded reinforcing bars. The outward end of each embedded reinforcing bar passes through the corresponding through hole. The outward end of each embedded reinforcing bar is welded and fixed to the embedded base plate. The triangular support is welded to the outward side of the embedded base plate and is used to connect the inclined support steel pipe.

2. The bottom support structure of a steel pipe inclined support according to claim 1, characterized in that: All the pre-embedded reinforcing bars are welded and fixed to the corresponding inner wall of the perforation in a portion of the perforation. The outward end of all the pre-embedded reinforcing bars is flush with or does not protrude from the perforation at the outward end of the corresponding perforation. The outward end of all the pre-embedded reinforcing bars is welded and fixed to the outward side of the pre-embedded base plate.

3. The bottom support structure of a steel pipe inclined support according to claim 1, characterized in that: The port of the perforation near one end of the mounting base is provided with a bevel, and the outer wall of the pre-embedded steel bar is welded and fixed to the bevel, and the weld formed fills the bevel.

4. The bottom support structure of a steel pipe inclined support according to claim 1, characterized in that: The installation base is a basement floor slab. The embedded steel bars and the embedded base plate are both embedded in the basement floor slab. The outward side of the embedded base plate protrudes from the top surface of the basement floor slab.

5. The bottom support structure of a steel pipe inclined support according to claim 4, characterized in that: The basement floor slab is provided with an installation hole, and a support pile is poured into the installation hole. The top of the support pile is lower than the top surface of the basement floor slab. The pre-embedded steel bars and the pre-embedded base plate are both pre-embedded on the top of the support pile. A water-stopping expansion strip is provided between the periphery of the support pile and the inner wall of the installation hole.

6. The bottom support structure of a steel pipe inclined support according to claim 5, characterized in that: Several pre-embedded steel bars are also provided between the bottom of the mounting hole and the support pile.

7. A steel pipe inclined support bottom support structure according to any one of claims 1-6, characterized in that: The triangular support includes an end plate and at least two triangular ribs. One side of the hypotenuse of all the triangular ribs is welded parallel to the embedded base plate. The end plate is welded to the parallel sides of all the triangular ribs. The lower end of the end plate is welded and fixed to the embedded base plate. The end plate is used to connect the inclined support steel pipe.

8. The bottom support structure of a steel pipe inclined support according to claim 7, characterized in that: The end plate is provided with several threaded holes, and the inclined support steel pipe is connected and fixed to the end plate by means of bolts passing through the threaded holes.

9. The bottom support structure of a steel pipe inclined support according to claim 7, characterized in that: The end plate is fixed to the corresponding end of the inclined support steel pipe by welding, and several connecting ribs are provided between the periphery of the inclined support steel pipe and the end plate.

10. The bottom support structure of a steel pipe inclined support according to claim 7, characterized in that: Both of the triangular ribs have a reinforcing rib on their opposite sides, and the reinforcing rib is connected to the embedded base plate.

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