Combined group hole type station built through full-mechanical method

Abstract

The utility model discloses a combined group hole type station built by a full-mechanical method, which comprises rail-mounted areas positioned on two sides, an island-type pedestrian area is arranged between the rail-mounted areas, the island-type pedestrian area is communicated with the rail-mounted areas through a platform connecting channel, a working vertical shaft is arranged outside the rail-mounted area on one side, the working vertical shaft is communicated with the island-type pedestrian area, and the working vertical shaft is communicated with the island-type pedestrian area. The rail-mounted area, the island-type pedestrian area and the platform connecting channel are communicated to form a platform layer, and the number of the island-type pedestrian area is one or more. Only a small ground space is occupied for construction of the working vertical shaft, the traffic pressure caused by subway construction to urban busy sections can be effectively relieved, and citizens can go out conveniently. The utility model has the advantages of high mechanization degree and small influence on ground traffic, and can greatly improve the construction efficiency, shorten the construction period of subway projects and reduce the construction cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of urban underground facility construction, and particularly relates to a combined group-hole type station constructed by a full-mechanical method. BACKGROUND

[0002] With the rapid development of urban economy and the increasing social population flow, the demand for urban rail transit engineering construction represented by subways presents a gradually expanding trend. In terms of the influence of subway construction on the surrounding environment, at present, the construction of subways is usually mainly based on open excavation and cover excavation, and there is more or less a certain degree of road occupation demand during construction. For the bustling urban area, subway construction will inevitably cause the phenomenon of subway "construction siege", and intensify the conflict between the daily convenient traffic demand of citizens and the urban renewal development.

[0003] In order to reduce the influence of subway construction on citizens as much as possible, the subway design usually discharges people and vehicles through the setting of zoned construction and the coordination of multi-period traffic relief, but this measure will inevitably cause the waste of resources such as manpower and materials, and requires a more generous construction period plan. In terms of the development and utilization of underground space, due to the restriction of the complex boundary conditions around the station, the conventional standard station design often cannot be effectively implemented, and in order to meet the basic functions and specification requirements of the station building, it is often necessary to split and reorganize various elements of the station to form a non-typical station design with high space utilization and complete basic functions.

[0004] The non-typical station design has a considerable degree of breakthrough and novelty in architecture and structure, and has a high degree of fit in the complex surrounding environment, and has high research value. In order to solve the above problems, at present, the mainstream design principle is to set a separate island platform to adapt to the complex boundary conditions around the station, but in the selection of station construction methods, engineers and scholars in various countries have not reached a relatively consistent consensus.

[0005] Therefore, it has extremely important research significance and reference value to explore a combined group-hole type subway station construction method based on non-open excavation means and realize the efficient utilization of subway construction and underground space. SUMMARY

[0006] The utility model discloses a combined group-hole type station constructed by a full-mechanical method, and aims at solving the problems in the prior art.

[0007] The technical scheme of the utility model is as follows: a combined group-hole type station constructed by a full-mechanical method, including track areas located on two sides, an island pedestrian area is arranged between the track areas, the island pedestrian area and the track areas are communicated through a platform connecting channel, a working shaft is arranged outside one track area, and the working shaft is communicated with the island pedestrian area.

[0008] Further, the rail area, the island pedestrian area and the platform connecting passage are communicated to form a platform layer, and the island pedestrian area is one or more.

[0009] Further, a subway line track is arranged in the rail area, and a platform plate is formed on a side of the island pedestrian area close to the subway line track.

[0010] Further, the bottom of the platform connecting passage passes through the island pedestrian area, and a backfill area is arranged in the island pedestrian area to support the bottom.

[0011] Further, the island pedestrian area comprises a pedestrian area shield segment, and the pedestrian area shield segment comprises an arc-shaped area and a straight area.

[0012] Further, the straight area of the pedestrian area shield segment is communicated with the platform connecting passage.

[0013] Further, the arc-shaped area of the pedestrian area shield segment is in a spatial arc shape and is communicated with the working shaft.

[0014] Further, the arc-shaped area of the pedestrian area shield segment is spatially avoided from the rail area shield segment of the rail area on the same side.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model mainly constructs a subway station based on non-excavation means, and compared with the prior art, only a small area of ground space is occupied to construct a working shaft, so that the traffic pressure caused by subway construction on a busy urban section can be effectively relieved, and the citizens can travel conveniently.

[0017] The working well is used for hoisting mechanical equipment in an early stage, a central island pedestrian area and two side rail areas are formed by different diameter shield machines, and the orderly division of functional areas is realized; the central island pedestrian area and the two side rail areas are connected through a platform connecting passage, and the organic combination between the functional areas is realized.

[0018] The utility model has high mechanization degree and small influence on ground traffic, the platform and the rail area are connected through a plurality of connecting passages, parallel operation can be implemented, the construction efficiency can be greatly improved, the subway project construction period can be shortened, and the engineering cost can be reduced while avoiding large-scale excavation of the pavement and reducing pipeline relocation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a platform layer plane schematic view in the utility model;

[0020] Figure 2 is a station hall layer plane schematic view in the utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the platform structure in the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the station structure in the utility model;

[0023] Figure 5 This is a schematic diagram of the platform connecting channel structure in the utility model;

[0024] in:

[0025] 1. Track area; 11. Track area shield segments; 12. Track top air duct; 13. Platform slab; 14. Metro line track; 2. Island pedestrian area; 21. Pedestrian area shield segments; 22. Backfill area; 3. Platform connecting passage; 31. Primary support; 32. Secondary lining; 311. Large pipe shed; 312. Shotcrete + steel support; 313. Small duct; 4. Working shaft; 41. Entrance and exit passage; 42. Fire pump room; 43. Environmental control room; 44. Platform payment area; 45. Air duct mezzanine; 46. Air chamber; 47. Lighting and power distribution room. DETAILED DESCRIPTION

[0026] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0027] like Figures 1 to 5 As shown, a combined tunnel station is constructed by a fully mechanical method, including track areas 1 on both sides, an island pedestrian area 2 is arranged between the track areas 1, and the island pedestrian area 2 is connected to the track area 1 through a platform connecting channel 3. A working shaft 4 is arranged outside the track area 1 on one side, and the working shaft 4 is connected to the island pedestrian area 2.

[0028] The track area 1, the island pedestrian area 2, and the platform connecting passage 3 are connected to form a platform layer, and there are one or more island pedestrian areas 2.

[0029] A subway track 14 is provided in the track area 1 , and a platform slab 13 is formed on one side of the subway track 14 close to the island pedestrian area 2 . The platform slab 13 is flush with the platform connecting passage 3 .

[0030] The bottom of the platform connecting passage 3 passes through the island-type pedestrian area 2 , and a backfill area 22 is provided in the island-type pedestrian area 2 to support the bottom thereof.

[0031] The island-type pedestrian area 2 includes a pedestrian area shield segment 21, and the pedestrian area shield segment 21 includes an arc area and a straight area.

[0032] The straight area of ​​the pedestrian area shield segment 21 is connected to the platform connecting channel 3.

[0033] The arc-shaped area of the pedestrian area shield segment 21 is spatially away from the rail area shield segment 11 of the rail area 1 on the same side.

[0034] The arc-shaped area of the pedestrian area shield segment 21 is spatially away from the rail area shield segment 11 of the rail area 1 on the same side.

[0035] Specifically, the rail area 1 is located on both sides and is parallel, the rail area 1 includes the rail area shield segment 11, the rail area shield segment 11 encloses to form a main body space, the subway line track 14 is arranged at the bottom of the rail area shield segment 11, the platform plate 13 is horizontally arranged, and the rail top air duct 12 is arranged above the subway line track 14.

[0036] Specifically, the island-type pedestrian area 2 includes the pedestrian area shield segment 21, and a backfill area 22 is further arranged in a straight area and is opposite to the position of the platform connecting passage 3. In order to ensure that the platform layer structure has a consistent height, the backfill area 22 is arranged on the over-excavated part of the platform connecting passage 3.

[0037] As an implementation manner, the backfill area 22 can be but is not limited to backfilling concrete.

[0038] Specifically, the platform connecting passage 3 connects the island-type pedestrian area 2 and the rail area 1, the platform connecting passage 3 is constructed by using a tunneling method, the platform connecting passage 3 includes primary support 31 and secondary lining 32, the primary support 31 includes a large pipe shed 311 and a sprayed concrete + profile steel support 312, and small pipes 313 are arranged between the large pipe sheds 311 to perform stratum grouting reinforcement.

[0039] Specifically, the full-mechanical-method combined group-hole type station includes the rail area 1 on both sides, the island-type pedestrian area 2 in the center, and the working shaft 4, the working shaft 4 is internally functionally divided into an entrance passage 41, a fire pump room 42, an environmental control machine room 43, a platform payment area 44, an air duct interlayer 45, an air chamber 46, and a lighting and power distribution room 47.

[0040] Specifically, the working shaft 4 has a rectangular cross section, the working shaft 4 includes the entrance passage 41 and the fire pump room 42 arranged on the top layer, the environmental control machine room 43 and the platform payment area 44 are arranged on the middle layer of the working shaft 4, the layer where the environmental control machine room 43 and the platform payment area 44 are arranged is communicated with the pedestrian area shield segment 21, the air duct interlayer 45 and the air chamber 46 are arranged on the middle layer of the working shaft 4, and the lighting and power distribution room 47 is arranged on the bottom layer of the working shaft 4.

[0041] Specifically, the full-mechanical-method combined group-hole type station station hall layer includes the island-type pedestrian area 2 and the working shaft 4, a shield machine is hung and placed to enter the working shaft 4, then the shield machine is started in the working shaft 4, after tunneling through a small turning radius, the island-type pedestrian area 2 is formed through straight-line tunneling after the shield machine reaches the station hall layer position.

[0042] Specifically, the rail area shield segment 11 adopts a reinforced concrete segment, and glass fiber reinforcement is arranged in the reinforced concrete segment for cutting after forming to form a connecting port of the platform connecting passage 3.

[0043] Specifically, the central island type pedestrian area 2 is formed by a large-diameter shield machine, and the structure includes a reinforced concrete segment, and glass fiber reinforcement is arranged in the reinforced concrete segment and arranged opposite to the cutting port of the reinforced concrete segment of the rail area 1, used for cutting after forming, and together with the cutting port of the reinforced concrete segment of the rail area 1, forms two ends of the platform connecting passage 3.

[0044] A full-mechanical method for constructing a combined group-hole type station and a construction method thereof, comprising the following steps:

[0045] A. Excavating and constructing a working shaft 4 by open excavation;

[0046] B. Using the working shaft 4 as a shield starting point to construct the rail area 1 and the island type pedestrian area 2;

[0047] C. Constructing a platform connecting passage 3 between the rail area 1 and the island type pedestrian area 2;

[0048] D. Functionally partitioning the working shaft 4;

[0049] E. Completing the construction of the entire station.

[0050] Specifically, step A excavates and constructs the working shaft 4 by open excavation, and the specific process is as follows:

[0051] First, excavate and construct the working shaft 4 by open excavation;

[0052] Then, hoist the construction equipment into the working shaft 4.

[0053] Specifically, step B uses the working shaft 4 as a shield starting point to construct the rail area 1 and the island type pedestrian area 2, and the specific process is as follows:

[0054] First, use shield equipment of different diameters to start from the working shaft 4;

[0055] Then, the shield equipment turns into the platform layer through a small radius;

[0056] Then, the shield equipment excavates to form the central island type pedestrian area 2 and the two side rail areas 1;

[0057] Finally, the shield equipment turns into the working shaft 4 through a small radius, and the shield equipment is hoisted out after being disassembled.

[0058] Specifically, step C constructs the platform connecting passage 3 between the rail area 1 and the island type pedestrian area 2, and the specific process is as follows:

[0059] First, cut the central island pedestrian area 2 and two sides rail area 1 special ring shield segment;

[0060] Then, the station connecting passage 3 is built by using the method of underground excavation.

[0061] Specifically, the step D carries out functional division of the working shaft 4, and the specific process is as follows:

[0062] The functional division of the working shaft 4 is carried out, the functional division of the station is integrated, and finally the connection is realized.

[0063] The utility model mainly builds subway station based on non open cut means, compared with prior art, only needs to occupy small area ground space to make work shaft, can effectively relieve traffic pressure caused by subway construction to busy section of city, and is convenient for citizen travel.

[0064] The utility model works well in the early stage of the well for hanging mechanical equipment, and forms the central island pedestrian area and the two sides rail area through different diameter shield machines, realizes the orderly division of functional division; the central island pedestrian area and the two sides rail area are connected through the platform connecting passage, realizes the organic combination between the functional divisions.

[0065] The utility model has high degree of mechanization, small influence on ground traffic, and the platform and the rail area are connected through several connecting passages, parallel operation can be implemented, can greatly improve the construction efficiency, shorten the subway project construction period, and reduce the engineering cost while avoiding large-scale excavation of the pavement and reducing pipeline relocation.

Claims

1. A fully mechanical method for constructing a combined tunnel-type station, characterized by: The invention comprises track areas (1) located on both sides, an island pedestrian area (2) is arranged between the track areas (1), the island pedestrian area (2) is connected to the track area (1) through a platform connecting passage (3), and a working shaft (4) is arranged outside the track area (1) on one side, and the working shaft (4) is connected to the island pedestrian area (2).

2. The fully mechanically constructed combined tunnel-type station according to claim 1, characterized in that: The track area (1), the island pedestrian area (2), and the platform connecting passage (3) are connected to form a platform layer, and there are one or more island pedestrian areas (2).

3. The fully mechanically constructed combined tunnel-type station according to claim 2, characterized in that: A subway line track (14) is provided in the track area (1), and a platform plate (13) is formed on one side of the subway line track (14) close to the island pedestrian area (2), and the platform plate (13) is flush with the platform connecting passage (3).

4. The fully mechanically constructed combined tunnel-type station according to claim 3 is characterized by: The bottom of the platform connecting passage (3) passes through the island-type pedestrian area (2), and a backfill area (22) for supporting the bottom of the platform connecting passage (3) is provided in the island-type pedestrian area (2).

5. The fully mechanically constructed combined tunnel-type station according to claim 1 is characterized by: The island-type pedestrian area (2) includes a pedestrian area shield segment (21), and the pedestrian area shield segment (21) includes an arc area and a straight area.

6. The fully mechanically constructed combined tunnel-type station according to claim 5, characterized in that: The straight area of ​​the pedestrian area shield segment (21) is connected to the platform connecting channel (3).

7. The fully mechanically constructed combined tunnel-type station according to claim 5, characterized in that: The arc-shaped area of ​​the pedestrian shield segment (21) is in a spatial arc shape and is connected to the working shaft (4).

8. The fully mechanically constructed combined tunnel-type station according to claim 7, characterized in that: The arc-shaped area of ​​the pedestrian area shield segment (21) spatially avoids the track area shield segment (11) of the side track area (1) where it is located.

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