CN110821517A - Tunnel internal double-layer structure prefabrication and assembly construction method - Google Patents
Tunnel internal double-layer structure prefabrication and assembly construction method Download PDFInfo
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- CN110821517A CN110821517A CN201911190619.2A CN201911190619A CN110821517A CN 110821517 A CN110821517 A CN 110821517A CN 201911190619 A CN201911190619 A CN 201911190619A CN 110821517 A CN110821517 A CN 110821517A
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- 238000010276 construction Methods 0.000 title claims abstract description 55
- 238000009417 prefabrication Methods 0.000 title claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 55
- 239000004575 stone Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000872 buffer Substances 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000007853 buffer solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a tunnel internal double-layer structure prefabrication and assembly construction method, which relates to the technical field of tunnel construction processes and comprises the following steps: prefabricating a lower layer of lane plate, and fixing the lower layer of lane plate at the bottom of the tunnel so as to connect the lower layer of lane plate with the inner wall of the tunnel; prefabricating a central support structure, and installing the central support structure in the middle of the lower layer of the lane plate and in the center line position of the tunnel; prefabricating upright columns, namely installing the upright columns on two sides of the wall of the tunnel pipe; prefabricating an upper layer of lane plate, and mounting the upper layer of lane plate on the upright post; prefabricated partition boards which are arranged on two sides of the upper layer of the lane board; prefabricating supporting feet, namely mounting the supporting feet on the wall of the tunnel pipe to support the partition plate; prefabricating a rubber support, and installing the rubber support between the partition plate and the supporting legs; prefabricated crashproof stone is installed crashproof stone on the upper lane board, and the baffle is connected with crashproof stone, has alleviated the technical problem that the double tunnel construction that exists is complicated among the prior art, construction cycle length.
Description
Technical Field
The invention relates to the technical field of tunnel construction processes, in particular to a construction method for prefabricating and assembling a double-layer structure in a tunnel.
Background
In urban tunnel engineering, shield construction is a common construction method, and is a method for constructing a tunnel by using a shield machine, controlling an excavation surface and surrounding rocks not to collapse and destabilize, tunneling the tunnel, discharging slag, assembling segments in the machine to form a lining, implementing wall post-grouting, and not disturbing the surrounding rocks. The application of the shield method in the prefabrication and assembly technology of structures such as linings, flue plates, square pieces and the like is mature.
However, the internal structure of the double-layer tunnel still has a large amount of cast-in-place construction, which results in complex field procedures, long construction period, large interference to the surrounding environment, large loss of manpower, materials and machinery, and difficult control of construction quality and construction period.
Disclosure of Invention
The invention aims to provide a construction method for prefabricating and assembling a double-layer structure in a tunnel, which solves the technical problems of complicated double-layer tunnel construction, long construction period and difficult control of construction quality and construction period in the prior art.
The invention provides a construction method for prefabricating and assembling a double-layer structure in a tunnel, which comprises the following steps of:
prefabricating a lower layer lane plate, and fixing the lower layer lane plate at the bottom of the tunnel so as to connect the lower layer lane plate with the inner wall of the tunnel;
prefabricating a central support structure, wherein the central support structure is arranged in the middle of the lower layer lane plate and is positioned in the center line position of the tunnel;
prefabricating upright columns, and mounting the upright columns on two sides of the wall of the tunnel pipe;
prefabricating an upper layer of lane plate, and mounting the upper layer of lane plate on the upright post;
prefabricated partition plates installed on both sides of the upper-layer lane plate;
prefabricating supporting legs, wherein the supporting legs are arranged on the wall of the tunnel pipe to support the partition plate;
prefabricating a rubber support, and installing the rubber support between the partition plate and the supporting legs;
prefabricating the anti-collision stones, installing the anti-collision stones on the upper layer lane boards, and connecting the partition boards with the anti-collision stones.
Further, in the above-mentioned case,
prefabricating the lower layer of the lane plate, fixing the lower layer of the lane plate at the bottom of the tunnel, so that the lower layer of the lane plate is connected with the inner wall of the tunnel, and further comprising the following steps of:
and filling concrete between the lower layer of lane plate and the bottom of the tunnel, and enabling the concrete to be flush with the top surface of the lower layer of lane plate so as to fix the lower layer of lane plate.
Further, in the above-mentioned case,
the prefabricated upright post is installed on two sides of the wall of the tunnel tube and further comprises the following steps:
pouring pipe wall concrete on two sides of the pipe wall of the tunnel;
and installing a stand column base on the pipe wall concrete, and installing the stand column on the stand column base.
Further, in the above-mentioned case,
prefabricating an upper layer of lane plate, installing the upper layer of lane plate on the upright post further comprises the following steps:
prefabricating a buffer seat, and installing the buffer seat on the upright post;
and placing the upper layer lane board on the buffer seat.
Further, in the above-mentioned case,
the prefabricated partition board is arranged on two sides of the upper layer lane board and further comprises the following steps:
pouring a cross beam between the upper layer of lane plate and the wall of the tunnel pipe so as to enable two ends of the cross beam to be respectively connected with the upper layer of lane plate and the wall of the tunnel pipe;
mounting the partition to the cross-member.
Further, in the above-mentioned case,
the prefabricated supporting legs are arranged on the wall of the tunnel pipe to support the partition plate, and the method further comprises the following steps:
leveling, and pouring a layer of concrete on the supporting legs.
Further, in the above-mentioned case,
and a placing part for storing electric equipment is arranged between the partition plate and the upright post base.
Further, in the above-mentioned case,
a first maintenance channel is formed among the partition plate, the upright post and the tunnel tube wall.
Further, in the above-mentioned case,
and a second maintenance channel is formed between the central support structure and the lower layer lane plate as well as between the central support structure and the bottom of the tunnel.
Further, in the above-mentioned case,
the top of the central supporting structure is provided with a bearing part for improving bearing capacity.
The invention provides a construction method for prefabricating and assembling a double-layer structure in a tunnel, which comprises the following steps of: prefabricating a lower layer of lane plate, and fixing the lower layer of lane plate at the bottom of the tunnel so as to connect the lower layer of lane plate with the inner wall of the tunnel; prefabricating a central support structure, and installing the central support structure in the middle of the lower layer of the lane plate and in the center line position of the tunnel; prefabricating upright columns, namely installing the upright columns on two sides of the wall of the tunnel pipe; prefabricating an upper layer of lane plate, and mounting the upper layer of lane plate on the upright post; prefabricated partition boards which are arranged on two sides of the upper layer of the lane board; prefabricating supporting feet, namely mounting the supporting feet on the wall of the tunnel pipe to support the partition plate; prefabricating a rubber support, and installing the rubber support between the partition plate and the supporting legs; and (3) prefabricating the anti-collision stones, installing the anti-collision stones on the upper layer lane boards, and connecting the partition boards with the anti-collision stones. The prefabricated lower-layer lane plates are installed at the bottom of a tunnel, the prefabricated central supporting structure is used for supporting the lower-layer lane plates, the prefabricated stand columns are fixed to two sides of the wall of the tunnel, the prefabricated upper-layer lane plates are installed on the stand columns, the prefabricated partition plates are installed on two sides of the upper-layer lane plates, the prefabricated supporting legs are installed on the wall of the tunnel to support the partition plates, prefabricated rubber supports are installed between the supporting legs and the partition plates, supporting stability is improved, prefabricated anti-collision stones are installed on the upper-layer lane plates, installation of the tunnel is completed, the technical problems that double-layer tunnel construction is complex, construction period is long, construction quality and construction period are difficult to control in the prior art are solved, prefabricated parts in advance are achieved, quick installation is completed, and technical effects of tunnel construction are completed quickly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an overall flow diagram of a construction method for prefabricating and assembling a double-layer structure in a tunnel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a construction method for prefabricating and assembling a double-layer structure in a tunnel according to an embodiment of the present invention.
Icon: 100-lower lane plate; 110-a beam; 200-a central support structure; 210-a carrier; 300-column; 310-column base; 320-a buffer seat; 400-upper lane plate; 500-a separator; 600-supporting feet; 700-rubber support; 800-crashproof stone; 900-a placement section; 910-a first maintenance channel; 920 — second dimension channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 is an overall flow diagram of a construction method for prefabricating and assembling a double-layer structure in a tunnel according to this embodiment;
fig. 2 is a schematic structural diagram of the construction method for prefabricating and assembling a double-layer structure in a tunnel provided by this embodiment.
As shown in fig. 1-2, the construction method for prefabricating and assembling a double-layer structure in a tunnel provided by the embodiment includes the following steps: prefabricating a lower layer lane plate 100, and fixing the lower layer lane plate 100 at the bottom of the tunnel so as to connect the lower layer lane plate 100 with the inner wall of the tunnel; prefabricating a central support structure 200, and installing the central support structure 200 in the middle of the lower layer lane plate 100 and at the central line position of the tunnel; prefabricating the vertical column 300, and installing the vertical column 300 on two sides of the wall of the tunnel pipe; prefabricating an upper layer of the roadway plate 400, and mounting the upper layer of the roadway plate 400 on the upright 300; prefabricating a partition plate 500, wherein the partition plate 500 is installed at both sides of the upper-layer roadway plate 400; prefabricating supporting feet 600, and installing the supporting feet 600 on the wall of the tunnel pipe to support the partition plate 500; prefabricating a rubber support 700, and installing the rubber support 700 between the partition plate 500 and the supporting leg 600; and prefabricating the anti-collision stone 800, installing the anti-collision stone 800 on the upper layer of the lane plate 400, and connecting the partition plate 500 with the anti-collision stone 800.
Specifically, the prefabricated central support structure 200 is fixed at the bottom of the tunnel, then the prefabricated lower-layer roadway plates 100 are installed on the central support structure 200, the prefabricated upright posts 300 are fixed at two sides of the wall of the tunnel, the prefabricated upper-layer roadway plates 400 are installed on the upright posts 300, the prefabricated partition plates 500 are installed at two sides of the upper-layer roadway plates 400, the prefabricated support legs 600 are installed on the wall of the tunnel, the prefabricated rubber supports 700 are installed between the support legs 600 and the partition plates 500, the stability of the support partition plates 500 is improved, the prefabricated anti-collision stones 800 are installed on the upper-layer roadway plates 400, and the tunnel is installed.
The tunnel internal double-layer structure prefabrication and assembly construction method provided by the embodiment comprises the following steps: prefabricating a lower layer lane plate 100, and fixing the lower layer lane plate 100 at the bottom of the tunnel so as to connect the lower layer lane plate 100 with the inner wall of the tunnel; prefabricating a central support structure 200, and installing the central support structure 200 in the middle of the lower layer lane plate 100 and at the central line position of the tunnel; prefabricating the vertical column 300, and installing the vertical column 300 on two sides of the wall of the tunnel pipe; prefabricating an upper layer of the roadway plate 400, and mounting the upper layer of the roadway plate 400 on the upright 300; prefabricating a partition plate 500, wherein the partition plate 500 is installed at both sides of the upper-layer roadway plate 400; prefabricating supporting feet 600, and installing the supporting feet 600 on the wall of the tunnel pipe to support the partition plate 500; prefabricating a rubber support 700, and installing the rubber support 700 between the partition plate 500 and the supporting leg 600; and prefabricating the anti-collision stone 800, installing the anti-collision stone 800 on the upper layer of the lane plate 400, and connecting the partition plate 500 with the anti-collision stone 800. By installing the prefabricated lower roadway plate 100 at the bottom of the tunnel, supporting the lower roadway plate 100 with the prefabricated central support structure 200, fixing the prefabricated pillars 300 at both sides of the tunnel tube wall, installing the prefabricated upper roadway plate 400 on the pillars 300, installing the prefabricated partition plates 500 at both sides of the upper roadway plate 400, installing the prefabricated support legs 600 on the tunnel tube wall to support the partition plates 500, and the prefabricated rubber support 700 is arranged between the supporting legs 600 and the partition board 500, so that the supporting stability is improved, the prefabricated anti-collision stone 800 is arranged on the upper-layer roadway plate 400, the tunnel is arranged, the technical problems that the construction of a double-layer tunnel is complex, the construction period is long, and the construction quality and the construction period are difficult to control in the prior art are solved, the parts are prefabricated in advance, the quick installation is finished, and the technical effect of the tunnel construction is quickly finished.
On the basis of the foregoing embodiment, further, in the prefabricated lower-layer roadway plate 100 in the construction method for prefabricating and assembling a double-layer structure in a tunnel provided in this embodiment, the step of fixing the lower-layer roadway plate 100 to the bottom of the tunnel so as to connect the lower-layer roadway plate 100 with the inner wall of the tunnel further includes the following steps: concrete is filled between the lower-layer lane plate 100 and the bottom of the tunnel such that the concrete is flush with the top surface of the lower-layer lane plate 100 to fix the lower-layer lane plate 100.
Specifically, after the lower lane plate 100 is installed on the central support structure 200, concrete is poured into the lower lane plate 100 to fix the lower lane plate 100, thereby ensuring the stability of the lower lane plate 100.
In the process of concrete pouring, in order to ensure the flatness of the lower-layer track plate 100, it is necessary to ensure that the poured concrete is flush with the top surface of the lower-layer track plate 100.
Further, prefabricating the pillar 300, and installing the pillar 300 on both sides of the tunnel tube wall, further comprises the following steps: pouring pipe wall concrete on two sides of the pipe wall of the tunnel; column base 310 is installed on the pipe wall concrete, and column 300 is installed on column base 310.
Specifically, pipe wall concrete is poured on two sides of the wall of the tunnel, the pipe wall concrete is connected with the wall of the tunnel, the column base 310 is installed on the pipe wall concrete, and after the column base 310 is fixed, the prefabricated column 300 is installed and fixed on the column base 310, so that the rapid installation of the column 300 is realized.
Further, prefabricating the upper layer of the roadway plate 400 and installing the upper layer of the roadway plate 400 on the pillar 300 further comprise the following steps: prefabricating a buffer base 320, and mounting the buffer base 320 on the upright post 300; the upper-layer lane plate 400 is placed on the buffer base 320.
Specifically, after upright 300 is installed and fixed, at the top installation buffer seat 320 of upright 300, install upper lane board 400 on buffer seat 320, make buffer seat 320 press from both sides and establish between upper lane board 400 and upright 300, play the cushioning effect, avoid long-time direct contact between upper lane board 400 and the upright 300, cause the damage at upright 300 top.
In the construction method for prefabricating and assembling the double-layer structure in the tunnel provided by the embodiment, concrete is poured between the lower layer of the lane plate 100, the central support structure 200 and the bottom of the tunnel, so that the firmness degree of the lower layer of the lane plate 100 is improved; through set up buffer seat 320 between upper lane board 400 and stand 300, effectively avoid direct contact between upper lane board 400 and the stand 300, influence stand 300's life.
On the basis of the above embodiment, further, in the prefabricated partition board 500 in the construction method for prefabricating and assembling a double-layer structure in a tunnel provided by this embodiment, the step of installing the partition board 500 on both sides of the upper-layer roadway slab 400 further includes the following steps: pouring the cross beam 110 between the upper layer of the lane plate 400 and the wall of the tunnel pipe, so that two ends of the cross beam 110 are respectively connected with the upper layer of the lane plate 400 and the wall of the tunnel pipe; the partition 500 is mounted on the cross member 110.
Specifically, the cross beam 110 is poured between the upper layer of the roadway plate 400 and the tunnel pipe wall, the cross beam 110 connects the upper layer of the roadway plate 400 with the tunnel pipe wall, the relative position of the upper layer of the roadway plate 400 is fixed, the partition plate 500 is installed on the cross beam 110 after the cross beam 110 is fixed, the cross beam 110 is prevented from being exposed due to the arrangement of the partition plate 500, and the service life of the cross beam 110 is effectively prolonged.
The supporting legs 600 support the cross beam 110, and because the cross beam 110 is fixedly connected with the upper layer of the lane plate 400, the weight borne by the upper layer of the lane plate 400 is shared on the supporting legs 600, and further shared on the wall of the tunnel pipe, so that the service life is effectively prolonged.
Further, prefabricating the supporting leg 600, installing the supporting leg 600 on the wall of the tunnel pipe to support the partition board 500, further comprising the following steps: leveling, a layer of concrete is poured on the supporting legs 600.
Specifically, in order to ensure that the cross beam 110 and the upper lane plate 400 are in the horizontal position, the support leg 600 needs to be leveled, and a layer of concrete is poured on the support leg 600 to ensure that the surface of the support leg 600 is in the horizontal position.
In the construction method for prefabricating and assembling the double-layer structure in the tunnel, the beam 110 is poured between the upper layer of the lane plate 400 and the wall of the tunnel pipe, so that the position of the upper layer of the lane plate 400 is fixed, and the firmness of the upper layer of the lane plate 400 is improved; the upper deck lane plate 400 and the cross member 110 are horizontally positioned by the leveling process of the support legs 600.
On the basis of the above embodiment, further, a placing part 900 for storing electric equipment is disposed between the partition board 500 and the column base 310 in the construction method for prefabricating and assembling a double-layer structure in the tunnel interior.
Specifically, the placing part 900 is arranged between the partition board 500 and the column base 310, the strong power equipment or the weak power equipment is placed in the placing part 900, the placing part 900 can be symmetrically arranged, the weak power equipment can be conveniently placed on one side, and the strong power equipment can be conveniently placed on the other side.
Further, a first maintenance channel 910 is formed between the partition 500 and the upright 300 and the tunnel tube wall.
Specifically, a first maintenance channel 910 is formed among the partition 500, the upright 300 and the tunnel tube wall, so as to facilitate later maintenance.
Further, a second maintenance channel 920 is formed between the central support structure 200 and the lower lane plate 100 and the bottom of the tunnel.
Specifically, a second maintenance channel 920 can be formed between the central support structure 200, the lower lane plate 100 and the bottom of the tunnel, which facilitates later maintenance.
Further, the top of the central support structure 200 is provided with a bearing portion 300210 for improving bearing capacity.
Specifically, central authorities bearing structure 200 includes a plurality of support columns, and the top of support column is provided with load-bearing part 300210, and the setting of load-bearing part 300210 makes the lifting surface area at support portion top bigger, and it is more firm to support.
According to the construction method for prefabricating and assembling the double-layer structure in the tunnel, the placing part 900 is arranged, so that strong and weak electric equipment can be fixed conveniently; the support of the lower deck track panel 100 is made more firm by the provision of the bearing portions 300210.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A tunnel internal double-layer structure prefabrication and assembly construction method is characterized by comprising the following steps:
prefabricating a lower layer lane plate, and fixing the lower layer lane plate at the bottom of the tunnel so as to connect the lower layer lane plate with the inner wall of the tunnel;
prefabricating a central support structure, wherein the central support structure is arranged in the middle of the lower layer lane plate and is positioned in the center line position of the tunnel;
prefabricating upright columns, and mounting the upright columns on two sides of the wall of the tunnel pipe;
prefabricating an upper layer of lane plate, and mounting the upper layer of lane plate on the upright post;
prefabricated partition plates installed on both sides of the upper-layer lane plate;
prefabricating supporting legs, wherein the supporting legs are arranged on the wall of the tunnel pipe to support the partition plate;
prefabricating a rubber support, and installing the rubber support between the partition plate and the supporting legs;
prefabricating the anti-collision stones, installing the anti-collision stones on the upper layer lane boards, and connecting the partition boards with the anti-collision stones.
2. The tunnel internal double-layer structure prefabrication and assembly construction method according to claim 1, wherein the lower layer of lane plates are prefabricated, and the lower layer of lane plates are fixed at the bottom of the tunnel so as to be connected with the inner wall of the tunnel, and the method further comprises the following steps:
and filling concrete between the lower layer of lane plate and the bottom of the tunnel, and enabling the concrete to be flush with the top surface of the lower layer of lane plate so as to fix the lower layer of lane plate.
3. The tunnel internal double-layer structure prefabrication and assembly construction method according to claim 2, wherein the prefabricated stand columns are installed on two sides of the wall of the tunnel tube and further comprise the following steps:
pouring pipe wall concrete on two sides of the pipe wall of the tunnel;
and installing a stand column base on the pipe wall concrete, and installing the stand column on the stand column base.
4. The tunnel internal double-layer structure prefabrication and assembly construction method according to claim 3, wherein the prefabrication and assembly construction method of the upper layer of roadway plates and the installation of the upper layer of roadway plates on the stand columns further comprises the following steps:
prefabricating a buffer seat, and installing the buffer seat on the upright post;
and placing the upper layer lane board on the buffer seat.
5. The tunnel interior double-layer structure prefabrication and assembly construction method according to claim 4, wherein the prefabricated partition plates are installed on two sides of the upper layer roadway plate, and the method further comprises the following steps of:
pouring a cross beam between the upper layer of lane plate and the wall of the tunnel pipe so as to enable two ends of the cross beam to be respectively connected with the upper layer of lane plate and the wall of the tunnel pipe;
mounting the partition to the cross-member.
6. The tunnel internal double-layer structure prefabrication and assembly construction method according to claim 5, wherein the prefabrication and assembly construction method of the supporting feet is characterized in that the supporting feet are installed on the wall of the tunnel pipe to support the partition plate, and further comprises the following steps:
leveling, and pouring a layer of concrete on the supporting legs.
7. The construction method for prefabricating and assembling a double-layer structure in a tunnel according to claim 6, wherein a placing part for storing electric equipment is arranged between the partition plate and the column base.
8. The tunnel internal double-layer structure prefabrication and assembly construction method according to claim 6, wherein a first maintenance channel is formed between the partition plate and the stand column as well as between the partition plate and the tunnel pipe wall.
9. The tunnel interior double-layer structure prefabrication and assembly construction method according to claim 1, wherein a second maintenance channel is formed between the central support structure and the lower layer roadway plate and the bottom of the tunnel.
10. The tunnel interior double-layer structure prefabrication and assembly construction method according to claim 1, wherein a bearing portion for improving bearing capacity is arranged at the top of the central support structure.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417671A (en) * | 2021-08-06 | 2021-09-21 | 中交（广州）建设有限公司 | Construction method for quickly assembling prefabricated parts in shield tunnel |
| CN113503176A (en) * | 2021-08-06 | 2021-10-15 | 中交（广州）建设有限公司 | Integrated intelligent assembling trolley for prefabricated parts in tunnel |
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| CN113417671A (en) * | 2021-08-06 | 2021-09-21 | 中交（广州）建设有限公司 | Construction method for quickly assembling prefabricated parts in shield tunnel |
| CN113503176A (en) * | 2021-08-06 | 2021-10-15 | 中交（广州）建设有限公司 | Integrated intelligent assembling trolley for prefabricated parts in tunnel |
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