Mounting structure of supporting steel pipe and tubular pile stand column

Abstract

The utility model relates to the technical field of foundation pit supporting, and discloses a mounting structure for supporting steel pipes and tubular pile stand columns, which comprises a foundation pit, a building and steel sheet piles, and is characterized in that a plurality of steel sheet piles are distributed on the periphery of the foundation pit, a plurality of tubular pile stand columns are arranged in the foundation pit, and the tubular pile stand columns correspond to the steel sheet piles in distribution. Connecting components are installed at the top ends of the pipe pile stand columns, a steel pipe supporting system is arranged on the upper portions of the steel sheet piles, one end of the steel pipe supporting system makes contact with the steel sheet piles, and through the arrangement of the steel sheet piles and the pipe pile stand columns, the steel pipe supporting system can be installed between the steel sheet piles and the pipe pile stand columns at the same time, so that the supporting effect is achieved. The connecting component is installed at the top end of the pipe pile stand column, the pipe body of the steel pipe supporting system is welded to the connecting component, and therefore connection between the steel pipe supporting system and the pipe pile stand column is firmer, and the connecting system is small in needed space, simple in connection, short in construction period, low in manufacturing cost and convenient to recycle.

Description

Technical Field

[0001] The utility model patent relates to the technical field of foundation pit support, and specifically, to an installation structure for supporting steel pipes and pipe pile columns. Background Art

[0002] At present, there are many support methods to choose from in the field of foundation pit support engineering at home and abroad, such as: slope excavation, pile support, steel sheet pile support, underground continuous wall support, soil nail wall support, etc. Since the 21st century, urban land has become increasingly tight, especially in urban centers with dense buildings. Urban construction and the development and transformation of underground space have become inevitable. Foundation pit projects in cities often face the situation of being close to buildings, subway tunnels and various pipelines. Therefore, for foundation pits with deep excavation depths, important buildings around them, and small space left for support structures, the above support methods alone are not enough to resist the external soil pressure. Therefore, in the design of deep foundation pit support, horizontal internal support systems are often used. The commonly used internal support systems are concrete support systems, steel support systems, fish belly beam support systems, etc.

[0003] Nowadays, many foundation pit support projects tend to choose more environmentally friendly and green support forms, such as recyclable anchor rods, steel sheet piles, steel pipe support systems, and fish belly beam support systems. However, for recyclable anchor rods, many foundation pit projects with limited land in urban centers do not have enough space; for the combination of steel sheet piles and steel supports, most of the supporting columns still use steel lattice columns or I-beams combined with cast-in-place piles as column piles, and it is still necessary to set up piling equipment on site, which disturbs the surrounding environment; for the fish belly beam support system, since the support performance of this support system has high requirements for force balance, it has requirements for the shape of the foundation pit. If it is a long strip foundation pit and the entire foundation pit cannot be constructed at the same time, it is difficult to ensure the force balance of the support, and the overall cost of the fish belly beam support is relatively high compared to the conventional support system, and the economy is limited. Utility Model Content

[0004] The utility model aims to provide an installation structure for supporting steel pipes and pipe pile columns, aiming to solve the problem in the prior art that the foundation pit engineering space is small and the special shape of the foundation pit leads to inconvenience in support.

[0005] The utility model is implemented as follows: a mounting structure for supporting steel pipes and pipe pile columns comprises a foundation pit, a building and steel sheet piles, wherein a plurality of steel sheet piles are distributed around the foundation pit, a plurality of pipe pile columns are arranged in the pit foundation, the distribution of the pipe pile columns corresponds to the distribution of the steel sheet piles, and a connecting member is installed at the top of the pipe pile column, a steel pipe supporting system is arranged on the upper part of the steel sheet pile, one end of the steel pipe supporting system is in contact with the steel sheet pile, and the other end is welded to the connecting member, the connecting member comprises a first limiting steel plate welded to the top of the pipe pile column, two second limiting steel plates are welded to the first limiting steel plate, and the pipe pile column is welded between the two second limiting steel plates.

[0006] Preferably, two armpit steel plates are welded on the side wall surface of the first limiting steel plate and the two second limiting steel plates away from each other, one end of the armpit steel plate is welded to the first limiting steel plate, and the other end is welded to the second limiting steel plate.

[0007] Preferably, the first limiting steel plate, the second limiting steel plate and the haunch steel plate are all steel plates with a thickness of 20 mm.

[0008] Preferably, double-sided welding technology is used between the steel pipe support system and the first limiting steel plate and the two second limiting steel plates.

[0009] Preferably, the position where the pipe pile column contacts the first limiting steel plate is welded along the outer circle of the pipe pile column with the midpoint of the top end of the pipe pile column as the center of the circle, and the welding is completed in one circle.

[0010] Preferably, several of the steel sheet piles and pipe pile columns need to be inserted into the ground before excavating the foundation pit.

[0011] Preferably, the axil steel plate is a right triangle with a base length of 300 mm and a height of 600 mm.

[0012] Preferably, several of the steel pipe support systems, connecting members and pipe pile columns need to be prefabricated in a factory and then transported to the construction site.

[0013] Preferably, a bottom plate exchange support and a floor plate exchange support are installed on the steel sheet piles, and one end of the bottom plate exchange support and the floor plate exchange support away from the steel sheet piles is connected to the building.

[0014] Preferably, a fiberboard is provided at the position where the bottom plate support and the steel sheet piles are in contact.

[0015] Compared with the prior art, the installation structure of the supporting steel pipe and the pipe pile column provided by the utility model enables the steel pipe support system to be installed between the steel sheet piles and the pipe pile columns at the same time through the arrangement of a plurality of steel sheet piles and the pipe pile columns, thereby forming a supporting effect; by installing a connecting member at the top of the pipe pile column and welding the pipe body of the steel pipe support system to the connecting member, the connection between the steel pipe support system and the pipe pile column is made more secure, the connection system requires a small space, is simple to connect, has a short construction period, a low construction cost, and is easy to recycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the installation structure of the supporting steel pipe and the pipe pile column provided by the utility model;

[0017] Figure 2 It is a top view structural schematic diagram of the installation structure of the supporting steel pipe and the pipe pile column provided by the utility model;

[0018] Figure 3 It is a structural schematic diagram of a connecting member of an installation structure for supporting a steel pipe and a pipe pile column provided by the utility model.

[0019] Description of reference numerals:

[0020] 1. Steel sheet piles; 2. Steel pipe support system; 3. Connecting components; 4. Pipe pile columns; 5. Bottom plate replacement support; 6. Fiberboard; 7. Floor slab replacement support; 8. First limit steel plate; 9. Second limit steel plate; 10. Axillary steel plate; 11. Building; 12. Foundation pit. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] Reference Figure 1-3 As shown, it is a preferred embodiment provided by the utility model.

[0025] The installation structure of supporting steel pipes and pipe pile columns includes a foundation pit 12, a building 11 and steel sheet piles 1. A plurality of steel sheet piles 1 are distributed around the foundation pit 12. A plurality of pipe pile columns 4 are arranged in the pit foundation 12. The distribution of the pipe pile columns 4 corresponds to the distribution of the steel sheet piles 1, and a connecting member 3 is installed at the top of the pipe pile column 4. A steel pipe support system 2 is arranged on the upper part of the steel sheet pile 1. One end of the steel pipe support system 2 is in contact with the steel sheet pile 1, and the other end is welded to the connecting member 3. The connecting member 3 includes a first limiting steel plate 8 welded to the top of the pipe pile column 4, two second limiting steel plates 9 are welded to the first limiting steel plate 8, and the pipe pile column 4 is welded between the two second limiting steel plates 9.

[0026] By setting up several steel sheet piles 1 and pipe pile columns 4, the steel pipe support system 2 can be installed between the steel sheet piles 1 and the pipe pile columns 4 at the same time, so as to form a supporting effect; by installing the connecting member 3 on the top of the pipe pile column 4, the pipe body of the steel pipe support system 2 is welded to the connecting member 3, so that the connection between the steel pipe support system 2 and the pipe pile column 4 is made stronger. The connection system requires a small space, is simple to connect, has a short construction period, a low cost, and is easy to recycle.

[0027] Specifically, in this embodiment, two axilla steel plates 10 are welded on the side wall surface away from each other of the first limiting steel plate 8 and the two second limiting steel plates 9, one end of the axilla steel plate 10 is welded to the first limiting steel plate 8, and the other end is welded to the second limiting steel plate 9.

[0028] By welding two armature steel plates 10 on the side wall surface away from each other between the first limiting steel plate 8 and the two second limiting steel plates 9, the first limiting steel plate 8 can be welded to the second limiting steel plates 9 through the armature steel plates 10, thereby further improving the stability between the first limiting steel plate 8 and the two second limiting steel plates 9.

[0029] Specifically, in this embodiment, the first limiting steel plate 8, the second limiting steel plate 9 and the haunch steel plate 10 are all steel plates with a thickness of 20 mm.

[0030] Since the first limiting steel plate 8, the second limiting steel plate 9 and the axillar steel plate 10 are all steel plates with a thickness of 20 mm, the first limiting steel plate 8, the second limiting steel plate 9 and the axillar steel plate 10 have a stronger load-bearing capacity and are more secure after welding.

[0031] Specifically, in this embodiment, double-sided welding technology is used between the steel pipe support system 2 and the first limiting steel plate 8 and the two second limiting steel plates 9.

[0032] By using the double-sided welding technology, the steel pipe support system 2 can ensure a stable connection with the first limiting steel plate 8 and the two second limiting steel plates 9.

[0033] Specifically, in this embodiment, the position where the pipe pile column 4 contacts the first limiting steel plate 8 is welded along the outer circle of the pipe pile column 4 with the midpoint of the top end of the pipe pile column 4 as the center of the circle, and the welding is completed in one circle.

[0034] The top of the pipe pile column 4 is welded all around to connect it to the first limiting steel plate 8, so that the connection between the pipe pile column 4 and the first limiting steel plate 8 is more firmly established.

[0035] Specifically, in this embodiment, a plurality of steel sheet piles 1 and pipe pile columns 4 need to be inserted into the ground before excavating the foundation pit 12 .

[0036] The steel sheet piles 1 and the pipe pile columns 4 are first inserted into the ground, and then the foundation pit 12 is excavated, so that the steel sheet piles 1 and the pipe pile columns 4 can block the soil and prevent the soil from collapsing during the excavation of the foundation pit 12.

[0037] Specifically, in this embodiment, the haunch steel plate 10 is a right triangle with a base length of 300 mm and a height of 600 mm.

[0038] Since the added haunch steel plate 10 is in the shape of a right triangle, the contact surface between the added haunch steel plate 10 and the first limiting steel plate 8 and the second limiting steel plate 9 is larger, so that the welding range is larger, and the added haunch steel plate 10 makes the connection between the first limiting steel plate 8 and the second limiting steel plate 9 more firmly.

[0039] Specifically, in this embodiment, a plurality of steel pipe support systems 2, connection members 3 and pipe pile columns 4 need to be prefabricated in a factory and then transported to the construction site.

[0040] Since the steel pipe support system 2, the connection member 3 and the pipe pile column 4 have been prefabricated in the factory, the construction site only needs to assemble the structure through a reliable connection method, which is simple to operate and has high work efficiency.

[0041] Specifically, in this embodiment, a bottom plate exchange support 5 and a floor plate exchange support 7 are installed on the steel sheet pile 1 , and one end of the bottom plate exchange support 5 and the floor plate exchange support 7 away from the steel sheet pile 1 is connected to the building 11 .

[0042] When the foundation pit 12 is excavated to the base, the underground structure construction stage is entered. After the foundation slab is cast and formed, the lowest layer of support needs to be removed, and the retaining body will form a larger exposed span from the base to the upper support. Through the arrangement of the bottom slab replacement support 5 and the floor slab replacement support 7, effective support is provided between the retaining body and the base, thereby avoiding large deformation of the wall and even causing safety problems.

[0043] Specifically, in this embodiment, a fiberboard 6 is provided at the position where the bottom plate support 5 and the steel sheet pile 1 are in contact.

[0044] Since the fiberboard 6 is an isolation board with low compressibility, it avoids the situation in which the differential settlement between the main structure and the surrounding protection body of the foundation pit 12 during normal use has an adverse effect on the main structure.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The installation structure of supporting steel pipes and pipe pile columns includes a foundation pit, a building and steel sheet piles, characterized in that: A number of steel sheet piles are distributed around the foundation pit, and a number of pipe pile columns are arranged in the pit foundation. The distribution of the pipe pile columns corresponds to the distribution of the steel sheet piles, and a connecting component is installed on the top of the pipe pile column. A steel pipe support system is arranged on the upper part of the steel sheet pile, one end of the steel pipe support system is in contact with the steel sheet pile, and the other end is welded to the connecting component. The connecting component includes a first limiting steel plate welded to the top of the pipe pile column, two second limiting steel plates are welded on the first limiting steel plate, and the pipe pile column is welded between the two second limiting steel plates.

2. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: Two axilla steel plates are welded on the side wall surface where the first limiting steel plate and the two second limiting steel plates are away from each other, one end of the axilla steel plate is welded to the first limiting steel plate, and the other end is welded to the second limiting steel plate.

3. The installation structure of supporting steel pipe and pipe pile column as claimed in claim 2, characterized in that: The first limiting steel plate, the second limiting steel plate and the haunch steel plate are all steel plates with a thickness of 20 mm.

4. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: The steel pipe support system and the first limiting steel plate and the two second limiting steel plates adopt double-sided welding technology.

5. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: The position where the pipe pile column contacts the first limiting steel plate is welded along the outer circle of the pipe pile column with the midpoint of the top end of the pipe pile column as the center of the circle, and the welding is completed in one circle.

6. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: Several of the steel sheet piles and pipe pile columns need to be inserted into the ground before excavating the foundation pit.

7. The installation structure of supporting steel pipe and pipe pile column as claimed in claim 2, characterized in that: The axil steel plate is a right triangle with a bottom length of 300 mm and a height of 600 mm.

8. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: Several of the steel pipe support systems, connecting components and pipe pile columns need to be prefabricated in a factory and then transported to the construction site.

9. The installation structure of supporting steel pipe and pipe pile column according to claim 1, characterized in that: A bottom plate exchange support and a floor plate exchange support are installed on the steel sheet piles, and one end of the bottom plate exchange support and the floor plate exchange support away from the steel sheet piles is connected to the building.

10. The installation structure of supporting steel pipe and pipe pile column according to claim 9, characterized in that: A fiberboard is arranged at the position where the bottom plate support contacts the steel sheet pile.

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