Splicing system for reserved shield unearthed hole structure of superimposed assembly station
By using prefabricated longitudinal and transverse beams for the tunnel boring machine (TBM) assembly, the problems of slow construction speed and resource waste in the reserved tunnel excavation holes at the station were solved, achieving efficient assembly and improved quality.
Patent Information
- Application Number
- CN202423031748.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing technologies are difficult to implement effectively in pre-reserved shield tunneling exit holes in structural slabs. Existing technologies suffer from slow construction speed, difficulty in controlling accuracy, and serious waste of resources in the construction of pre-reserved shield tunneling exit holes in stations.
The assembly system adopts a method of prefabricating longitudinal beams with steel reinforcement cages at the holes, prefabricating all steel reinforcements at the bottom of transverse beams at the holes, erecting partial disc-lock scaffolds at the bottom of the beams, laying formwork and pre-embedding the tongue and groove joints at the holes, casting in place frame beams, prefabricating the bottom of the sealing plates with truss reinforcements, tongue and groove lap joints, and post-cast composite concrete. All prefabricated components are prefabricated in the factory, and the steel reinforcement connectors for the subsequent sealing plates are reserved.
It simplifies the work process, improves construction efficiency, reduces the investment in formwork and supports, improves the working environment, and enhances the structural quality of the shield tunnel exit hole.
Smart Images
Figure CN223753367U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the prefabricated assembled subway station technology field, concretely relates to a kind of structure assembly system of composite assembly station reserved shield unearthed hole. BACKGROUND
[0002] The traditional full cast-in-place construction organization mode is still mainly used in urban rail transit subway station at present, which not only has a long construction period, but also has large consumption of formwork support, common quality defects, serious resource waste and serious environmental pollution.
[0003] The composite assembly subway station construction technology is a new subway station construction organization mode in recent years, which is different from the full prefabricated assembly subway station. It has the characteristics of short construction period, low engineering cost, strong structural durability, high construction safety, high quality and strong adaptability.
[0004] At present, whether it is full prefabricated assembly or composite prefabricated assembly, the prefabricated assembly degree of standard section is relatively high, but the cast-in-place operation is still mainly used in special parts such as structural plate reserved shield unearthed hole. The technical level needs to be improved. The main shortcomings or deficiencies of the prior art include:
[0005] (1) In the construction stage, holes are reserved on the top center plate in the middle position of the station as the shield unearthing and equipment hoisting channel. The support is set up on the beam edge, the special-shaped rebate formwork is made, the reinforcement is bound, and the concrete is cast-in-place. Because the reinforcement is too dense and all bound on site, the construction speed is slow, the precision is not easy to control, and the time is long.
[0006] (2) In the use stage, the structure is sealed after the shield unearthing operation is completed and the equipment is hoisted. The support is set up on the bottom plate in the projection range of the unearthed hole, the bottom formwork is laid, the reinforcement connector is cut and chiseled on the beam reserved reinforcement, the reinforcement is connected, and the hole is sealed by cast-in-place structure plate. Because the large-scale formwork support has already withdrawn, it is once invested, resource waste is serious, and it must be operated from the bottom plate to the top plate in turn. The site recovery and traffic opening time is long. INVENTION CONTENTS
[0007] The utility model aims at providing a composite assembly station side wall reserved accessory connection assembly structure system to solve the problems in the above background technology.
[0008] To achieve the above purpose, the utility model provides the following technical scheme:
[0009] The utility model relates to a kind of structure assembly system of superimposed assembly station reserved shield unearthed hole, it is characterized in that, the structure assembly system includes: hole edge longitudinal beam reinforcement cage prefabrication, hole edge crossbeam carries all steel bar bottom prefabrication, beam bottom sets up local disc buckle support, lays template and hole edge rabbet reserved pre-embedded, cast-in-place frame beam, blocking plate carries truss bar bottom prefabrication, rabbet lap joint and post-poured superimposed layer concrete;Wherein, all prefabricated components are factory prefabricated, and reserve subsequent blocking plate steel bar connector.In construction phase: hole edge beam bottom sets up local disc buckle support, assembles hole edge longitudinal beam and crossbeam prefabricated component, installs hole edge special-shaped rabbet template, then pours frame beam structural system;In use phase: picks and gouges rabbet reserved steel bar connector, assembles superimposed prefabricated blocking plate to the above of rabbet, superimposed layer steel bar connection, pours blocking plate superimposed layer concrete.
[0010] Further, the prefabricated thickness of the hole edge crossbeam carrying all steel bar bottom prefabrication is 500mm;The side wall side sets up width of the beam bottom sets up local disc buckle support is 1000mm, and the middle span sets up 6600mm.
[0011] Compared with prior art, the utility model has the advantages that:
[0012] The structure assembly system of superimposed assembly station reserved shield unearthed hole of the application realizes the purposes of simplifying operation procedure, improving construction efficiency, reducing formwork support investment, improving operation environment and improving the overall quality of shield unearthed hole structure by steel bar cage prefabrication+blocking plate superimposed prefabrication assembly+pre-embedded steel bar connection+post-poured superimposed layer concrete in construction phase and use phase. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is plane structure schematic view of structure plate reserved shield unearthed hole in the construction phase of the utility model;
[0014] Figure 2 It is sectional structure schematic view of hole edge longitudinal beam one of the utility model;
[0015] Figure 3 It is sectional structure schematic view of hole edge crossbeam of the utility model;
[0016] Figure 4 It is sectional structure schematic view of hole edge longitudinal beam two of the utility model;
[0017] Figure 5 It is elevation structure schematic view of structure plate reserved shield unearthed hole in the construction phase of the utility model;
[0018] Figure 6 It is plane structure schematic view of shield unearthed hole using prefabricated plate blocking in the use phase of the utility model;
[0019] Figure 7The utility model discloses a prefabricated plate + post-poured concrete plugging vertical surface structure schematic diagram for shield unearthed hole in use stage.
[0020] Figure 8 The utility model discloses the structure schematic diagram of normal section structure plate.
[0021] In the drawing: hole edge longitudinal beam one 1, hole edge crossbeam 2, hole edge longitudinal beam two 3, prefabricated middle longitudinal beam 4, prefabricated structure column 5, prefabricated middle plate 6, side wall 7, middle plate steel bar 8, preburied steel bar adapter 9, cast-in-situ hole edge longitudinal beam one 10, cast-in-situ hole edge longitudinal beam two 11, cast-in-situ middle plate 12, hole edge temporary formwork 13, hole edge temporary support 14, bottom plate 15, prefabricated middle longitudinal beam 16, bottom longitudinal beam 17, hole plugging prefabricated plate 18, prefabricated middle plate 19, prefabricated side wall 20. DETAILED DESCRIPTION
[0022] In order to more clearly explain the overall concept of the utility model, the following will be described in detail in an exemplary manner in conjunction with the accompanying drawings of the specification.
[0023] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.
[0024] The utility model provides a kind of structure assembly system of superimposed assembly station reserved shield unearthed hole, it is characterized in that, the structure assembly system includes: hole edge longitudinal beam reinforcement cage prefabrication, hole edge crossbeam carries all steel bar bottom prefabrication, beam bottom sets up local disc buckle support, lays template and hole edge rabbet reserves preburied, cast-in-situ frame beam, plugging plate carries truss bar bottom prefabrication, rabbet lap joint and post-poured superimposed layer concrete;Wherein, all prefabricated components are factory prefabricated, and reserve subsequent plugging plate steel bar adapter.
[0025] With the construction of middle plate reserved shield in and out hole in subway station as an example, hole edge longitudinal beam reinforcement cage prefabrication of shield unearthed hole, hole edge crossbeam carries all steel bar bottom superimposed prefabrication (prefabricated thickness 500mm), unearthed hole later plugging plate carries truss bar bottom superimposed prefabrication (prefabricated thickness 120mm);Prefabricated components are factory prefabricated, and reserve subsequent plugging plate steel bar adapter;In construction stage: hole edge beam bottom sets up local disc buckle support (side wall side sets up width 1000mm, across middle sets up 6600mm), assembles hole edge longitudinal beam and crossbeam prefabricated component, crossbeam steel bar is anchored into two end longitudinal beam, and meet the requirement of anchoring length, installs hole edge longitudinal profiled rabbet formwork, rabbet height 380mm, width 200mm, then pours frame beam structure system;In use stage: the steel bar adapter reserved in longitudinal rabbet is chiseled, and superimposed prefabricated plugging plate is assembled to the above of rabbet, superimposed layer steel bar is connected, and pours plugging plate superimposed layer concrete.
[0026] The working principle of the present application is as follows:
[0027] The shield excavation hole longitudinal beam reinforcement cage is prefabricated in the construction stage, the hole edge transverse beam carries the bottom of all the reinforcement and is prefabricated, the beam bottom is provided with a local disc buckle support, a formwork and a hole edge tongue joint reserved embedded part are laid, and a cast-in-place frame beam structure is formed; the truss reinforcement bottom is carried by the sealing plate in the use stage, the tongue joint reserved reinforcement connector is chiseled, the sealing plate is overlapped above the tongue joint, the superimposed layer reinforcement connector is connected, the superimposed layer concrete is post-cast, and the shield excavation hole sealing is completed.
[0028] Please refer to the accompanying drawings Figure 1 As shown in the drawings, the structure plate reserved shield excavation hole in the construction stage includes hole edge longitudinal beam one 1, hole edge transverse beam 2, hole edge longitudinal beam two 3, prefabricated middle longitudinal beam 4, prefabricated structure column 5, prefabricated middle plate 6 and side wall 7.
[0029] Please refer to the accompanying drawings Figure 2 As shown in the drawings, the hole edge longitudinal beam one includes prefabricated middle plate 6, side wall 7, middle plate reinforcement 8 and pre-embedded reinforcement connector 9.
[0030] The accompanying drawings Figure 3 and the accompanying drawings Figure 4 show the cross-sectional structure schematic diagram of the hole edge transverse beam and the cross-sectional structure schematic diagram of the hole edge longitudinal beam two.
[0031] Please refer to the accompanying drawings Figure 5 As shown in the drawings, the structure plate reserved shield excavation hole in the construction stage includes side wall 7, cast-in-place hole edge longitudinal beam one 10, cast-in-place hole edge longitudinal beam two 11, cast-in-place middle plate 12, hole edge temporary formwork 13, hole edge temporary support 14, bottom plate 15, prefabricated middle longitudinal beam 16 and bottom longitudinal beam 17.
[0032] Please refer to the accompanying drawings Figure 6 As shown in the drawings, the structure of the prefabricated plate sealing shield excavation hole in the use stage includes hole edge longitudinal beam one 1, hole edge transverse beam 2, hole edge longitudinal beam two 3, prefabricated structure column 5, prefabricated middle plate 6, side wall 7, prefabricated middle longitudinal beam 16 and hole sealing prefabricated plate 18.
[0033] Please refer to the accompanying drawings Figure 7 As shown in the drawings, the structure of the prefabricated plate + post-cast sealing shield excavation hole in the use stage includes pre-embedded reinforcement connector 9, bottom plate 15, prefabricated middle longitudinal beam 16, bottom longitudinal beam 17, hole sealing prefabricated plate 18 and prefabricated side wall 20.
[0034] Please refer to the accompanying drawings Figure 8 As shown in the drawings, the normal section structure plate includes bottom plate 15, prefabricated middle longitudinal beam 16, bottom longitudinal beam 17, prefabricated middle plate 19 and prefabricated side wall 20.
[0035] In summary, compared with the prior art, the main innovation of the present application is that:
[0036] 1) hole edge longitudinal beam reinforcement cage, hole edge transverse beam superimposed prefabrication and assembly technology.
[0037] 2) prefabricated component embedded reinforcement, reserved groove and subsequent quick barge technology.
[0038] 3) blocking plate superimposed prefabrication instead of formwork, quick assembly and structural connection technology.
[0039] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest that the scope of the present application (including the claims) be limited to these examples; under the present application, the above embodiments or technical features in different embodiments can also be combined, steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for the sake of brevity.
[0040] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.
Claims
1. A kind of superimposed assembly station reserved shield unearthed hole structure assembly system, it is characterized in that, The structural assembly system comprises: hole edge longitudinal beam reinforcement cage prefabrication, hole edge transverse beam carrying all reinforcement bottom prefabrication, beam bottom local disc buckle support erection, formwork laying and hole edge rabbet reserved pre-burying, cast-in-situ frame beam, blocking plate carrying truss reinforcement bottom prefabrication, rabbet lapping and post-poured composite layer concrete; wherein, all prefabricated components are factory prefabricated, and the subsequent blocking plate steel bar connector is reserved; The prefabricated thickness of the hole edge transverse beam carrying all reinforcement bottom prefabrication is 500mm; the side wall side erection width of the beam bottom local disc buckle support erection is 1000mm, and the cross erection is 6600mm; The construction stage structure plate reserved shield earthwork hole comprises hole edge longitudinal beam one, hole edge transverse beam, hole edge longitudinal beam two, prefabricated middle longitudinal beam, prefabricated structure column, prefabricated middle plate and side wall; The hole edge longitudinal beam one comprises prefabricated middle plate, side wall, middle plate reinforcement and pre-burying steel bar connector; The construction stage structure plate reserved shield earthwork hole comprises side wall, cast-in-situ hole edge longitudinal beam one, cast-in-situ hole edge longitudinal beam two, cast-in-situ middle plate, hole edge temporary formwork, hole edge temporary support, bottom plate, prefabricated middle longitudinal beam and bottom longitudinal beam; The shield earthwork hole using prefabricated plate blocking in the use stage structure comprises hole edge longitudinal beam one, hole edge transverse beam, hole edge longitudinal beam two, prefabricated structure column, prefabricated middle plate, side wall, prefabricated middle longitudinal beam and hole hole blocking prefabricated plate; The shield earthwork hole using prefabricated plate + post-poured concrete blocking in the use stage structure comprises pre-burying steel bar connector, bottom plate, prefabricated middle longitudinal beam, bottom longitudinal beam, hole hole blocking prefabricated plate and prefabricated side wall; The normal section structure plate comprises bottom plate, prefabricated middle longitudinal beam, bottom longitudinal beam, prefabricated middle plate and prefabricated side wall.