Large-section shallow-buried excavation tunnel construction platform device

Abstract

The utility model discloses a large-section shallow-buried excavation tunnel construction platform device. The large-section shallow-buried excavation tunnel construction platform device comprises a support, a platform, a crawling ladder and a fence. The multiple supports are arranged at intervals in the longitudinal direction. Wherein a channel between two adjacent groups of brackets is communicated with a pilot tunnel for large-section shallow-buried excavation tunnel construction. The platform is connected to the upper portion of each support and arranged above a pilot tunnel for large-section shallow-buried excavation tunnel construction. The upper portion of the crawling ladder is connected to the platform, and the lower portion of the crawling ladder extends to the construction ground of large-section shallow-buried excavation tunnel construction. The fence is connected to the periphery of the upper portion of the support and connected to the side portion of the crawling ladder. By means of the device, synchronous footage construction of all pilot tunnels in a narrow space and vertical simultaneous construction during tunnel entering are achieved, mutual interference is avoided, it is ensured that all procedures are closely connected, section supports are rapidly closed to form a ring, the production efficiency is improved, and the phenomena that workers are lost during construction are reduced.

Description

Technical Field

[0001] The present application relates to the field of construction, and in particular to a large-section shallow buried dark excavation tunnel construction platform device. Background Art

[0002] In the construction industry, the construction of large-section shallow buried tunnels for subways generally adopts the double-side wall pilot pit method and CRD method. Due to the large construction section, the large section is divided into multiple small sections for staggered simultaneous construction. The conventional backfill platform method has low construction efficiency and requires a large space. It cannot meet the requirements of simultaneous construction up and down when entering the hole, resulting in serious delays in work. Utility Model Content

[0003] The present application provides a large-section shallow buried dark excavation tunnel construction platform device, which can improve construction efficiency.

[0004] The embodiment of the present application provides a platform device for the construction of a large-section shallow-buried dark-excavated tunnel, comprising: a bracket, a platform, a ladder and a fence. The bracket comprises a plurality of brackets, and each bracket is arranged at a longitudinal interval. The passage between two adjacent groups of brackets is connected to a guide tunnel for the construction of a large-section shallow-buried dark-excavated tunnel. The platform is connected to the upper part of each bracket and is arranged above the guide tunnel for the construction of a large-section shallow-buried dark-excavated tunnel. The upper part of the ladder is connected to the platform, and the lower part extends to the construction ground of the large-section shallow-buried dark-excavated tunnel. The fence is connected to the upper periphery of the bracket and to the side of the ladder.

[0005] In some embodiments, each bracket includes: a base and a column. The base is arranged horizontally. The columns include a plurality of columns, each of which is vertically connected to the upper part of the base and arranged at intervals in the longitudinal direction.

[0006] In some embodiments, each bracket further comprises a reinforcement rod which is obliquely connected between the upper part and the lower part of two adjacent columns.

[0007] In some embodiments, each bracket further comprises a support rod, which is obliquely connected between the middle of each column and the lower part of the platform.

[0008] In some embodiments, the platform includes: a cross beam and a longitudinal beam. The cross beam includes a plurality of cross beams, each of which is arranged transversely and spaced apart in the longitudinal direction. The longitudinal beam includes a plurality of longitudinal beams, each of which is arranged longitudinally and spaced apart in the transverse direction, and each longitudinal beam is connected with each cross beam to form a grid-like frame.

[0009] In some embodiments, the platform further comprises: an anti-skid plate. The anti-skid plate is laid on the upper part of the grid-shaped frame.

[0010] In some of the embodiments, the surface of the protective fence is painted with warning paint.

[0011] In some of these embodiments, the ladder comprises a step ladder, and the treads of the step ladder comprise anti-slip plates.

[0012] In some of the embodiments, the step ladder is arranged on one side of the bracket in the longitudinal direction.

[0013] In some of these embodiments, the step ladder is configured to fit the bracket.

[0014] According to an embodiment of the present application, a large-section shallow buried dark tunnel construction platform device is provided, including: a bracket, a platform, a ladder and a fence. The bracket includes multiple brackets, and each bracket is arranged at a distance along the longitudinal direction. Among them, the passage between two adjacent groups of brackets is connected to the guide hole for the construction of the large-section shallow buried dark tunnel. The platform is connected to the upper part of each bracket and is arranged above the guide hole for the construction of the large-section shallow buried dark tunnel. The upper part of the ladder is connected to the platform, and the lower part extends to the construction ground of the large-section shallow buried dark tunnel. The fence is connected to the upper periphery of the bracket and connected to the side of the ladder. The device of the present application realizes the synchronous advancement construction of each guide hole in a small space and the simultaneous construction of the upper and lower parts when entering the hole, without interfering with each other, ensuring the close connection of each process, so that the cross-section support is quickly closed into a ring, improving production efficiency, and reducing the phenomenon of personnel idle work during construction. At the same time, the device of the present application also provides workers with a safe and reliable operating platform and safe passage to ensure construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application 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 present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a front view of the device in the embodiment of the present application;

[0017] Figure 2 A side view of a bracket of the device in an embodiment of the present application;

[0018] Figure 3 A side view of a ladder of the device in an embodiment of the present application;

[0019] Figure 4 Schematic diagram of the structure of the platform of the device in the embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] See also Figure 1-4 An embodiment of the present application provides a large-section shallow buried dark excavation tunnel construction platform device, including: a bracket 1, a platform 2, a ladder 3 and a fence 4.

[0022] The brackets 1 include a plurality of brackets 1, each bracket 1 being arranged at a distance in the longitudinal direction. The passage between two adjacent groups of brackets 1 is connected to a pilot hole for construction of a large-section shallow buried dark excavation tunnel.

[0023] Each bracket 1 includes: a base 101 , a column 102 , a reinforcement rod 103 and a support rod 104 .

[0024] The base 101 is arranged horizontally. The base 101 can be made of double-pieced I20 I-beams.

[0025] The columns 102 include a plurality of columns 102. The columns 102 can be made of double-joined I20 I-beams, which are fully welded to the platform 2. Each column 102 is vertically connected to the upper part of the base 101 and is arranged at a distance in the longitudinal direction.

[0026] The reinforcement rod 103 is connected obliquely between the upper and lower parts of two adjacent columns 102. The reinforcement rod 103 can be made of I20 I-beam.

[0027] The support rod 104 is connected obliquely between the middle of each column 102 and the lower part of the platform 2. The support rod 104 can be made of I20 I-beam.

[0028] The platform 2 is connected to the upper part of each support 1 and is arranged above the pilot hole of the large-section shallow buried dark excavation tunnel construction.

[0029] The platform 2 includes a cross beam 201 , a longitudinal beam 202 and an anti-skid plate 203 .

[0030] The cross beam 201 includes a plurality of cross beams. The cross beam 201 can be made of I20 I-beams. Each cross beam 201 is arranged transversely and spaced apart longitudinally. The spacing can be 43.9 cm.

[0031] The longitudinal beams 202 include a plurality of longitudinal beams 202. The longitudinal beams 202 may be I20 I-beams. Each longitudinal beam 202 is disposed longitudinally and arranged at intervals in the transverse direction. The spacing may be 87.5 cm. Each longitudinal beam 202 is welded to each cross beam 201 to form a grid-like frame.

[0032] The anti-skid plate 203 is laid on the grid-shaped frame top. The anti-skid plate 203 can be a 2.5 cm thick anti-skid steel plate.

[0033] The upper part of the ladder 3 is connected to the platform 2, and the lower part extends to the construction ground of the large-section shallow buried dark excavation tunnel construction.

[0034] The ladder 3 is a step ladder 3, and the step board of the step ladder 3 is an anti-slip plate 203. The anti-slip plate 203 can be an anti-skid steel plate.

[0035] The step ladder 3 is arranged on one side of the bracket 1 in the longitudinal direction.

[0036] The step ladder 3 is arranged in close contact with the bracket 1 .

[0037] The fence 4 is connected to the upper periphery of the support 1 and to the side of the ladder 3. The fence 4 can be made of a 1.2m high, φ48 ordinary steel pipe.

[0038] The surface of fence 4 is painted with warning paint. Warning paint can be painted with red and white paint at intervals.

[0039] The device can be mainly welded with I20 I-beams. The total length of the platform 2 can be 13.56m, the width can be 5.5m, and the height of the platform 2 can be 5m, which is mainly controlled by the height of the upper and lower guide holes.

[0040] The device of the present application realizes the synchronous advancement construction of each guide hole in a narrow space and the simultaneous construction of the upper and lower parts when entering the hole, without interfering with each other, ensuring the close connection of each process, making the cross-section support quickly closed into a ring, improving production efficiency, and reducing the phenomenon of personnel idleness during construction. At the same time, the device of the present application also provides workers with a safe and reliable operating platform 2 and a safe passage to ensure construction safety. Moreover, the device of the present application has a simple structure and is easy to hoist.

[0041] The same or similar reference numerals in the drawings of this embodiment correspond to the same or similar components. In the description of this application, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation of this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A large-section shallow buried dark excavation tunnel construction platform device, characterized in that: include: The bracket comprises a plurality of brackets, each of which is arranged at a distance in the longitudinal direction; wherein the passage between two adjacent groups of the brackets is connected to a guide hole for the construction of a large-section shallow buried dark excavation tunnel; A platform connected to the upper part of each of the brackets and arranged above the pilot hole of the large-section shallow buried dark excavation tunnel construction; A ladder, the upper part of which is connected to the platform, and the lower part of which extends to the construction ground of a large-section shallow buried dark excavation tunnel; A fence connected to the upper periphery of the bracket and to the side of the ladder; Wherein, the platform includes: A plurality of cross beams, each of which is disposed transversely and spaced apart in the longitudinal direction; A plurality of longitudinal beams, each of which is longitudinally arranged and spaced apart in the transverse direction, and each of the longitudinal beams is connected with each of the transverse beams to form a grid-like frame; An anti-skid plate is laid on the upper part of the grid-shaped frame.

2. The large-section shallow buried tunnel construction platform device according to claim 1, characterized in that: Each of the brackets comprises: The base is arranged horizontally; The columns include a plurality of columns, each of which is vertically connected to the upper part of the base and arranged at intervals in the longitudinal direction.

3. The large-section shallow buried tunnel construction platform device according to claim 2, characterized in that: Each of the brackets further comprises: The reinforcing rod is obliquely connected between the upper and lower parts of two adjacent columns.

4. The large-section shallow buried dark excavation tunnel construction platform device according to claim 2, characterized in that: Each of the brackets further comprises: The support rod is obliquely connected between the middle part of each of the upright columns and the lower part of the platform.

5. The large-section shallow buried dark excavation tunnel construction platform device according to claim 1, characterized in that: The surface of the fence is painted with warning paint.

6. The large-section shallow buried dark excavation tunnel construction platform device according to claim 1, characterized in that: The ladder comprises a step ladder, and the step boards of the step ladder comprise anti-slip plates.

7. The large-section shallow buried tunnel construction platform device according to claim 6, characterized in that: The step ladder is arranged on one side of the bracket in the longitudinal direction.

8. The large-section shallow buried dark excavation tunnel construction platform device according to claim 6, characterized in that: The step ladder is arranged to fit the bracket.

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