Fabricated steel structure supporting system applied to pipe jacking working pit

Abstract

The utility model relates to the technical field of foundation pit supporting engineering, in particular to an assembly type steel structure supporting system applied to a pipe jacking working pit, which comprises a concrete base, a plurality of groups of supporting units and a plurality of groups of connecting units, every two adjacent supporting units are connected through a connecting unit, each connecting unit comprises a plurality of connecting assemblies and a plurality of fixing assemblies, each connecting assembly is connected with the corresponding two supporting units, and every two adjacent connecting assemblies are connected through a fixing assembly. Each set of fixing assembly comprises a steel plate, two water stop rubber strips and two sets of fixing pieces, the two sets of fixing pieces are symmetrically arranged between the two corresponding sets of connecting assemblies, the steel plate is connected with the two corresponding sets of connecting assemblies, through the arrangement, all the components can be reused after being disassembled, and therefore resources and cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support engineering, in particular to an assembled steel structure support system applied to a pipe jacking working pit. Background Art

[0002] In recent years, trenchless pipe jacking technology has been continuously promoted in the field of municipal water supply and drainage. Among them, the design and construction of the pipe jacking working pit has become a prerequisite for the safe implementation of the pipe jacking project. At present, the structural support system of the pipe jacking working pit includes caisson, open-cut vertical shaft, open-cut reverse shaft and shotcrete reverse shaft.

[0003] However, the structural support system constructed in the existing pipe jacking working pit cannot be reused. After the pipe jacking project is completed, the working pit is backfilled and the structural support system is buried, resulting in a waste of resources. Utility Model Content

[0004] The utility model aims to provide an assembled steel structure support system for a pipe jacking working pit, aiming to solve the technical problem in the prior art that the structural support system constructed in the pipe jacking working pit cannot be reused, and after the pipe jacking project is completed, the working pit is backfilled and the structural support system is buried, resulting in a waste of resources.

[0005] To achieve the above-mentioned purpose, the utility model adopts an assembled steel structure support system for jacking work pits, including a concrete base, multiple groups of support units and multiple groups of connecting units. The multiple groups of support units are respectively arranged at each top corner of the concrete base, and each adjacent two groups of support units are connected by the connecting units. Each group of connecting units includes multiple groups of connecting components and multiple groups of fixing components. Each group of connecting components is connected to the corresponding two groups of support units. Each adjacent two groups of connecting components are connected by the fixing components. Each group of fixing components includes a steel plate, two water stop rubber strips and two groups of fixing parts. The two groups of fixing parts are symmetrically arranged between the corresponding two groups of connecting components. The steel plates are respectively connected to the corresponding two groups of connecting components, and the two water stop rubber strips are symmetrically arranged on one side of the steel plate.

[0006] Among them, each group of the support units includes a square steel pipe pile, two longitudinally protruding outer flanges, a plurality of transverse stiffening ribs of the pipe pile, a pile top cover plate and a pile tip, the two longitudinally protruding outer flanges are arranged on the outside of the square steel pipe pile, the plurality of transverse stiffening ribs of the pipe pile are fixedly connected to the square steel pipe pile, the pile top cover plate is arranged at the upper end of the square steel pipe pile, and the pile tip is arranged at the lower end of the square steel pipe pile.

[0007] Among them, each group of the connecting components includes a steel beam web, two steel beam flanges, multiple steel beam transverse stiffening ribs and two groups of mounting parts. The two steel beam flanges are symmetrically arranged on both sides of the steel beam web, and the multiple steel beam transverse stiffening ribs are fixedly connected to the steel beam web and are respectively located between the two steel beam flanges. The two groups of mounting parts are symmetrically arranged on both sides of the steel beam web.

[0008] Wherein, each group of the mounting parts includes two transverse connecting plates and a longitudinal connecting plate, the two transverse connecting plates are respectively arranged on the upper and lower surfaces of the web of the steel beam, and the longitudinal connecting plate is arranged on the outer side of one of the flanges of the steel beam.

[0009] Among them, each group of the fixing parts includes a circular steel pipe, two steel pipe sealing plates and two steel pipe connecting plates. The two steel pipe sealing plates are respectively arranged at both ends of the circular steel pipe, and the two steel pipe connecting plates are respectively fixedly connected to the corresponding steel pipe sealing plates.

[0010] Among them, the assembled steel structure support system applied to the jacking pipe working pit also includes jacking pipe reserved holes, and the jacking pipe reserved holes are arranged on the corresponding steel plates.

[0011] The utility model discloses an assembled steel structure support system applied to a pipe jacking working pit. When it is used, a pile driver is used to drive multiple groups of support units into the soil layer respectively, and then the soil is excavated. Then, the connection components are respectively connected to the corresponding support components, and then the corresponding connection components are connected through the fixing parts, and the steel plates are connected to the corresponding connection components, and the steel plates are sealed and waterproofed by the waterproof rubber strips, and finally the concrete base is poured. This method can effectively solve the problem in the prior art that the structural support system constructed in the pipe jacking working pit cannot be reused, and after the pipe jacking project is completed, the working pit is backfilled and the structural support system is buried, resulting in a waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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 these drawings without paying creative work.

[0013] Figure 1 It is a stereogram of the utility model.

[0014] Figure 2 It is a plan schematic diagram of the utility model.

[0015] Figure 3It is a schematic elevation view of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the utility model.

[0017] Figure 5 It is a structural schematic diagram of the support unit of the utility model.

[0018] Figure 6 It is a structural schematic diagram of the fixing member of the utility model.

[0019] Figure 7 It is a structural schematic diagram of the connection assembly of the utility model.

[0020] 101-concrete base, 102-steel plate, 103-waterstop strip, 104-square steel pipe pile, 105-longitudinal protruding outer flange, 106-transverse stiffening ribs of pipe pile, 107-pile top cover plate, 108-pile tip, 109-steel beam web, 110-steel beam flange, 111-transverse stiffening ribs of steel beam, 112-transverse connecting plate, 113-longitudinal connecting plate, 114-circular steel pipe, 115-steel pipe sealing plate, 116-steel pipe connecting plate, 117-reserved hole for top pipe. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] See also Figure 1 to Figure 7 ,in Figure 1 It is a three-dimensional diagram of the utility model. Figure 2 It is a plan view of the utility model. Figure 3 It is a schematic elevation diagram of the utility model. Figure 4 It is a structural schematic diagram of the utility model. Figure 5 It is a structural schematic diagram of the support unit of the utility model. Figure 6 It is a structural schematic diagram of the fixing member of the utility model. Figure 7 It is a structural schematic diagram of the connection assembly of the utility model.

[0023] The utility model provides an assembled steel structure support system applied to a jacking work pit, comprising a concrete base 101, a plurality of support units and a plurality of connection units, wherein the plurality of support units are respectively arranged at each top corner of the concrete base 101, and each two adjacent groups of support units are connected by the connection units, and each group of the connection units comprises a plurality of connection components and a plurality of fixing components, and each group of the connection components is connected to two corresponding groups of support units, and each two adjacent groups of the connection components are connected by the fixing components, and each group of the fixing components comprises a steel plate 102, two waterproof rubber strips 103 and two groups of fixing parts, and the two groups of fixing parts are symmetrically arranged between the two corresponding groups of the connection components, and the steel plate 102 is respectively connected to the two corresponding groups of the connection components, and the two waterproof rubber strips 103 are symmetrically arranged on one side of the steel plate 102.

[0024] In this embodiment, a pile driver is used to drive multiple groups of the support units into the soil layer respectively, and then the soil is excavated, and then the connecting components are connected to the corresponding supporting components respectively, and then the corresponding connecting components are connected through the fixing parts, and the steel plate 102 is connected to the corresponding connecting component, and the steel plate 102 is sealed and waterproofed by the waterproof strip 103, and finally the concrete base 101 is poured.

[0025] Furthermore, each group of the support units includes a square steel pipe pile 104, two longitudinally protruding outer flanges 105, a plurality of pipe pile transverse stiffening ribs 106, a pile top cover plate 107 and a pile tip 108, the two longitudinally protruding outer flanges 105 are both arranged on the outside of the square steel pipe pile 104, the plurality of pipe pile transverse stiffening ribs 106 are all fixedly connected to the square steel pipe pile 104, the pile top cover plate 107 is arranged at the upper end of the square steel pipe pile 104, and the pile tip 108 is arranged at the lower end of the square steel pipe pile 104.

[0026] In this embodiment, a pile driver is used to drive the square steel pipe pile 104 into the soil layer, and the longitudinally protruding outer flange 105 facilitates the longitudinal connection of the square steel pipe pile 104 and the connecting assembly, and the transverse stiffening ribs 106 of the pipe pile facilitate the transverse connection of the square steel pipe pile 104 and the connecting assembly.

[0027] Furthermore, each group of the connecting components includes a steel beam web 109, two steel beam flanges 110, a plurality of steel beam transverse stiffening ribs 111 and two groups of mounting parts. The two steel beam flanges 110 are symmetrically arranged on both sides of the steel beam web 109, the plurality of steel beam transverse stiffening ribs 111 are fixedly connected to the steel beam web 109 and are respectively located between the two steel beam flanges 110, and the two groups of mounting parts are symmetrically arranged on both sides of the steel beam web 109.

[0028] In this embodiment, an H-shaped crossbeam is formed by two of the steel beam flanges 110 and the steel beam web 109, and the bearing capacity can be enhanced by a plurality of the steel beam transverse stiffening ribs 111. The steel beam web 109 can be conveniently connected to the square steel pipe piles 104 by two of the mounting parts.

[0029] Furthermore, each set of the mounting parts includes two transverse connecting plates 112 and a longitudinal connecting plate 113 . The two transverse connecting plates 112 are respectively arranged on the upper and lower surfaces of the steel beam web 109 , and the longitudinal connecting plate 113 is arranged on the outer side of one of the steel beam flanges 110 .

[0030] In this embodiment, bolts are used to connect the two transverse connecting plates 112 and the transverse stiffening ribs 106 of the pipe piles, thereby connecting the steel beam web 109 and the square steel pipe piles 104 transversely, and bolts are used to connect the longitudinal connecting plates 113 and the longitudinal protruding outer flanges 105, thereby connecting the steel beam web 109 and the square steel pipe piles 104 longitudinally.

[0031] Furthermore, each group of the fixing parts includes a circular steel pipe 114, two steel pipe sealing plates 115 and two steel pipe connecting plates 116. The two steel pipe sealing plates 115 are respectively arranged at both ends of the circular steel pipe 114, and the two steel pipe connecting plates 116 are respectively fixedly connected to the corresponding steel pipe sealing plates 115.

[0032] In this embodiment, bolts are used to connect the two steel pipe connection plates 116 to the corresponding steel beam webs 109 , respectively, so that the circular steel pipe 114 connects and supports two adjacent steel beam webs 109 .

[0033] Furthermore, the prefabricated steel structure support system applied to the jacking work pit also includes a jacking pipe reserved hole 117, and the jacking pipe reserved hole 117 is arranged on the corresponding steel plate 102.

[0034] In this embodiment, the jacking pipe reserved hole 117 is used to place the jacking pipe.

[0035] The beneficial effects of the utility model are as follows: the square steel pipe pile 104 is driven into the soil layer by a pile driver, and then the soil is excavated, and then the two transverse connecting plates 112 are connected to the transverse stiffening ribs 106 of the pipe pile by bolts, so that the steel beam web 109 is transversely connected to the square steel pipe pile 104, and the longitudinal connecting plate 113 is connected to the longitudinal protruding outer flange 105 by bolts, so that the steel beam web 109 is longitudinally connected to the square steel pipe pile 104, and then the two steel pipe connecting plates 116 are respectively connected to the corresponding The steel beam web 109 is connected, so that the circular steel pipe 114 connects and supports the two adjacent steel beam webs 109, and then the steel plate 102 is connected to the corresponding steel beam flange 110 with bolts, and the steel plate 102 is sealed and waterproofed by the water stop strip 103, and finally the concrete base 101 is poured. This method can effectively solve the problem in the prior art that the structural support system constructed in the jacking working pit cannot be reused, and after the jacking project is completed, the working pit is backfilled and the structural support system is buried, resulting in a waste of resources.

[0036] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An assembled steel structure support system used in a pipe jacking pit, characterized in that: It includes a concrete base, multiple groups of support units and multiple groups of connection units. The multiple groups of support units are respectively arranged at each top corner of the concrete base. Every two adjacent groups of support units are connected by the connection units. Each group of connection units includes multiple groups of connection components and multiple groups of fixing components. Each group of connection components is connected to the corresponding two groups of support units. Every two adjacent groups of connection components are connected by the fixing components. Each group of fixing components includes a steel plate, two water-stop rubber strips and two groups of fixing parts. The two groups of fixing parts are symmetrically arranged between the corresponding two groups of connection components. The steel plates are respectively connected to the corresponding two groups of connection components. The two water-stop rubber strips are symmetrically arranged on one side of the steel plate.

2. The assembled steel structure support system for pipe jacking pit according to claim 1, characterized in that: Each group of the support units includes a square steel pipe pile, two longitudinally protruding outer flanges, a plurality of transverse stiffening ribs of the pipe pile, a pile top cover plate and a pile tip. The two longitudinally protruding outer flanges are arranged on the outside of the square steel pipe pile, the plurality of transverse stiffening ribs of the pipe pile are fixedly connected to the square steel pipe pile, the pile top cover plate is arranged at the upper end of the square steel pipe pile, and the pile tip is arranged at the lower end of the square steel pipe pile.

3. The assembled steel structure support system for pipe jacking pit according to claim 2, characterized in that: Each group of the connecting components includes a steel beam web, two steel beam flanges, a plurality of steel beam transverse stiffening ribs and two groups of mounting parts. The two steel beam flanges are symmetrically arranged on both sides of the steel beam web. The plurality of steel beam transverse stiffening ribs are fixedly connected to the steel beam web and are respectively located between the two steel beam flanges. The two groups of mounting parts are symmetrically arranged on both sides of the steel beam web.

4. The assembled steel structure support system for pipe jacking pit according to claim 3, characterized in that: Each group of the mounting parts includes two transverse connecting plates and a longitudinal connecting plate. The two transverse connecting plates are respectively arranged on the upper and lower surfaces of the web of the steel beam, and the longitudinal connecting plate is arranged on the outer side of one of the flanges of the steel beam.

5. The assembled steel structure support system for pipe jacking pit according to claim 4, characterized in that: Each group of the fixing parts includes a circular steel pipe, two steel pipe sealing plates and two steel pipe connecting plates. The two steel pipe sealing plates are respectively arranged at both ends of the circular steel pipe, and the two steel pipe connecting plates are respectively fixedly connected to the corresponding steel pipe sealing plates.

6. The assembled steel structure support system for pipe jacking pit according to claim 5, characterized in that: The assembled steel structure support system applied to the jacking pipe working pit also includes a jacking pipe reserved hole, and the jacking pipe reserved hole is arranged on the corresponding steel plate.

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