CN115977165A - Reinforced structure of shield tunnel closely through building - Google Patents
Reinforced structure of shield tunnel closely through building Download PDFInfo
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- CN115977165A CN115977165A CN202310109680.XA CN202310109680A CN115977165A CN 115977165 A CN115977165 A CN 115977165A CN 202310109680 A CN202310109680 A CN 202310109680A CN 115977165 A CN115977165 A CN 115977165A
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- building
- pipe
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- iron
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- 238000010276 construction Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 56
- 229910052742 iron Inorganic materials 0.000 claims description 28
- 229910000746 Structural steel Inorganic materials 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 12
- 235000000396 iron Nutrition 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a reinforced structure for a shield tunnel to pass through a building in a short distance, which belongs to the technical field of tunnel construction and comprises the following components: the bottom sprag portion, first bored concrete pile, the steel strand wires, anchor plate and construction groove concrete portion, the bottom sprag portion includes pipe canopy pipe, angle iron and rings, a plurality of pipe canopy pipe water averages evenly arrange in building basis below, the angle iron welding is at a plurality of pipe canopy pipe both ends, a plurality of rings clearance even welding are on the angle iron lateral wall, a plurality of first bored concrete piles are arranged in the both sides of building, construction groove concrete portion parcel angle iron and rings, steel strand wires one end is fixed on rings, the other end passes Shi Gongcao concrete portion and first bored concrete pile top is fixed on the anchor plate. The bottom supporting parts can be obliquely pulled at two sides of the building through the steel strands, and meanwhile the second supporting part can also support the bottom supporting parts from the bottom, so that the reinforcing structure is simple, and the integrity and the safety of the building can be effectively protected.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly relates to a reinforcing structure for a shield tunnel to pass through a building in a short distance.
Background
At present, when a tunnel is built in a main urban area of a city, a shield machine passes through a building inevitably, a building foundation is extremely sensitive to disturbance of a stratum soil body, the construction of the shield tunnel can cause disturbance of a surrounding soil body, two adverse factors act simultaneously to greatly threaten the safety construction of a project, and the control of the safety and the influence of tunneling on ground settlement and buildings above the shield tunnel is of great importance. However, in the underground construction process, the change of the stratum stress state directly causes the displacement and deformation of the surrounding soil body, and when the displacement and the influence exceed a certain range, the tunnel structure and the upper surrounding environment are inevitably seriously damaged, and the safe use of the earth surface and the adjacent buildings is influenced.
In the prior art, when a Fang Dungou existing building is constructed, a sleeve valve pipe is mostly adopted to pour concrete into soil below a building foundation in an inclined mode, so that the structural strength between the building and a tunnel is enhanced. However, the improvement of the structural strength is limited, and the strength of the soil body below the building cannot be effectively improved for looser soil.
Disclosure of Invention
In view of this, the present invention provides a reinforcing structure for a shield tunnel passing through a building in a short distance, which can effectively solve the problems existing in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reinforcing structure for a shield tunnel passing through a building at a short distance, comprising: bottom sprag portion, first bored concrete pile, steel strand wires, anchor plate and construction groove concrete portion, the bottom sprag portion includes pipe canopy pipe, triangle iron and rings, and is a plurality of the even arrangement of pipe canopy pipe water average is in building basis below, the triangle iron welding is a plurality of pipe canopy pipe both ends, and is a plurality of the even welding in rings clearance is in on the triangle iron lateral wall, it is a plurality of first bored concrete pile arranges the both sides at the building, shi Gongcao concrete portion parcel the triangle iron with rings, steel strand wires one end is fixed on rings, the other end passes Shi Gongcao concrete portion with first bored concrete pile top is fixed on the anchor plate.
Further, still include the second supporting part, the second supporting part includes triangle iron concrete portion and second bored concrete pile, the second bored concrete pile is located Shi Gongcao concrete portion bottom, triangle iron concrete portion parcel triangle iron, triangle iron concrete portion with the integration of second bored concrete pile is pour and is formed.
Furthermore, the bottom supporting part also comprises sleeve valve pipe concrete columns, and the sleeve valve pipe concrete columns are distributed among the pipe shed pipes at intervals.
Furthermore, one end of the pipe shed pipe is conical.
Furthermore, a plurality of grouting holes are formed in the side wall of the pipe shed pipe.
The invention has the beneficial effects that:
according to the invention, a plurality of pipe shed pipes are arranged below a building, triangular irons are welded at two ends of the pipe shed pipes, a plurality of lifting rings are uniformly welded on the triangular irons along a tunnel direction, a plurality of first cast-in-place piles are arranged at two sides of the building along the tunnel direction, anchoring plates are arranged at the top ends of the first cast-in-place piles, each lifting ring and each anchoring plate are tensioned by a steel strand, and a bottom supporting part is obliquely tensioned by the first cast-in-place piles and the steel strands so that the bottom supporting part is upwards dragged to the building, thereby preventing the building from being settled during shield tunneling; the triangular iron concrete part wraps the triangular iron, and the triangular iron concrete part and the second cast-in-place pile are integrally cast and molded, so that the second supporting part has upward thrust to the bottom supporting part, and the building is further prevented from sinking in a tunnel; the sleeve valve pipe concrete columns are distributed among the pipe shed pipes, and the sleeve valve pipe concrete columns formed by grouting the sleeve valve pipes enhance the strength between the pipe shed pipes and the soil body; one end of the pipe shed pipe is conical, so that the pipe shed pipe can be conveniently constructed from the construction groove on one side to the construction groove on the other side; the pipe shed pipe is characterized in that a plurality of grouting holes are formed in the side wall of the pipe shed pipe, so that the pipe shed pipe can perform grouting like a sleeve valve pipe, concrete can be left in the pipe shed pipe finally, the strength of the pipe shed pipe, a soil body and a sleeve valve pipe concrete column is enhanced, and the structural strength of the bottom supporting part is enhanced.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a sectional view of a shield tunnel passing closely through a reinforcing structure of a building.
Fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a partially enlarged view of a portion B in fig. 1.
FIG. 4 is a schematic view of the construction of the tube shed.
Wherein, in the figure:
10-bottom supporting part, 11-pipe shed pipe, 111-grouting hole, 12-triangular iron, 13-lifting ring, 14-sleeve valve pipe concrete column, 20-first cast-in-place pile, 30-steel strand, 40-anchoring plate, 50-construction groove concrete part, 60-second supporting part, 61-triangular iron concrete part, 62-second cast-in-place pile, 70-building and 80-tunnel.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 4, the present invention provides a reinforcing structure for a shield tunnel passing through a building at a short distance, including: bottom sprag portion 10, first bored concrete pile 20, steel strand wires 30, anchor plate 40 and construction groove concrete portion 50, bottom sprag portion 10 includes pipe canopy pipe 11, angle iron 12 and rings 13, a plurality of pipe canopy pipe 11 levels are evenly arranged in building 70 basis below, angle iron 12 welds in a plurality of pipe canopy pipe 11 both ends, a plurality of rings 13 clearance evenly weld on angle iron 12 lateral wall, a plurality of first bored concrete piles 20 are arranged in the both sides of building 70, construction groove concrete portion 50 parcel angle iron 12 and rings 13, steel strand wires 30 one end is fixed on rings 13, the other end passes Shi Gongcao concrete portion 50 and first bored concrete pile 20 top and fixes on anchor plate 40. The plurality of first cast-in-place piles 20 are arranged on two sides of a building 70 along the direction of a tunnel 80, one end of a steel strand 30 is fixed at the top end of the first cast-in-place pile 20 through an anchoring plate 40, pipe shed pipes 11 are evenly distributed below the building 70, triangular irons 12 are welded at two ends of the pipe shed pipes 11 in construction grooves on two sides of the building 70, the triangular irons 12 and the plurality of pipe shed pipes 11 form a whole, a plurality of hanging rings 13 are welded at two ends of the triangular irons 12 along the direction of the tunnel 80, the other end of the steel strand 30 is fixed on the hanging ring 13, the bottom supporting part 10 tends to be pulled upwards through the obliquely pulled steel strand 30, the building 70 is accordingly lifted, and the building 70 can be effectively prevented from sinking in the construction process of the tunnel 80.
Optionally, in a preferred embodiment, the reinforcing structure for a shield tunnel to pass through a building at a short distance further includes a second supporting portion 60, the second supporting portion 60 includes a triangular iron concrete portion 61 and a second cast-in-place pile 62, the second cast-in-place pile 62 is located at the bottom of the Shi Gongcao concrete portion 50, the triangular iron concrete portion 61 wraps the triangular iron 12, and the triangular iron concrete portion 61 and the second cast-in-place pile 62 are integrally cast to form, so that the second supporting portion 60 has an upward thrust on the bottom supporting portion 10, and further prevents the building 70 from sinking when the tunnel 80 passes through.
Alternatively, in a preferred embodiment, the bottom support 10 further comprises a plurality of sleeve valve pipe concrete columns 14, the sleeve valve pipe concrete columns 14 are distributed at intervals between the pipe roof pipes 11, and the sleeve valve pipe concrete columns 14 formed by grouting sleeve valve pipes enhance the strength between the pipe roof pipes 11 and the soil body.
Optionally, in a preferred embodiment, one end of the pipe-roof pipe 11 is tapered, so that the pipe-roof pipe 11 can be conveniently constructed from the construction groove on one side to the construction groove on the other side.
Optionally, in a preferred embodiment, a plurality of grouting holes 111 are formed in the side wall of the pipe-shed pipe 11, so that the pipe-shed pipe 11 can be grouted like a sleeve valve pipe, concrete is finally left inside the pipe-shed pipe 11, the strength of the pipe-shed pipe 11, the soil body and the sleeve valve pipe concrete column 14 is enhanced, and the structural strength of the bottom support portion 10 is enhanced.
Examples
Arranging a plurality of first cast-in-place piles 20 on two sides of a building 70 along the direction of a tunnel 80, then excavating construction grooves at the bottoms of the two sides close to the building 70, arranging a plurality of second cast-in-place piles 62 at the bottoms of the construction grooves on the two sides of the building 70 along the direction of the tunnel 80, then respectively inserting a plurality of pipe shed pipes 11 into opposite sides of the construction grooves on the two sides by utilizing a conical structure of a head, enabling the gaps between the adjacent pipe shed pipes 11 to be uniform, connecting a grouting pipeline to the non-conical end of each pipe shed pipe 11, grouting into each pipe shed pipe 11, and enabling concrete to enter soil between the pipe shed pipes 11 through a grouting hole 111; grouting the soil body again by utilizing the sleeve valve pipes among the pipe shed pipes 11 to form sleeve valve pipe concrete columns 14, and finally reserving concrete slurry in the pipe shed pipes 11; welding triangular irons 12 at two ends of a plurality of pipe shed pipes 11 in a construction groove, welding lifting rings 13 on the side walls of the triangular irons 12 to enable the lifting rings 13 to respectively correspond to first cast-in-place piles 20, then drilling holes for steel strands 30 in the construction groove in an inclined direction, fixing one ends of the steel strands 30 on the lifting rings 13, anchoring the other ends of the steel strands 30 at the top ends of the first cast-in-place piles 20 through anchoring plates 40, and constructing the steel strands 30 on two sides of a building 70 in sequence in the direction of a tunnel 80; then, the triangular iron 12 and the bottom of the construction groove are surrounded by a forming cavity through a template, concrete is poured to form a triangular iron concrete part 61, and after the triangular iron concrete part 61 is hardened and maintained, the construction grooves on two sides of the building 70 are poured with concrete to form a construction groove concrete part 50.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A reinforced structure of shield tunnel closely through building which characterized in that includes: bottom sprag portion, first bored concrete pile, steel strand wires, anchor plate and construction groove concrete portion, the bottom sprag portion includes pipe canopy pipe, triangle iron and rings, and is a plurality of the even arrangement of pipe canopy pipe water average is in building basis below, the triangle iron welding is a plurality of pipe canopy pipe both ends, and is a plurality of the even welding in rings clearance is in on the triangle iron lateral wall, it is a plurality of first bored concrete pile arranges the both sides at the building, shi Gongcao concrete portion parcel the triangle iron with rings, steel strand wires one end is fixed on rings, the other end passes Shi Gongcao concrete portion with first bored concrete pile top is fixed on the anchor plate.
2. The reinforced structure of a shield tunnel passing through a building in a short distance according to claim 1, further comprising a second support part, wherein the second support part comprises a triangular iron concrete part and a second cast-in-place pile, the second cast-in-place pile is located at the bottom of the Shi Gongcao concrete part, the triangular iron concrete part wraps the triangular iron, and the triangular iron concrete part and the second cast-in-place pile are integrally cast and formed.
3. The reinforced structure of a shield tunnel passing through a building at a short distance according to claim 1, wherein the bottom support part further comprises sleeve valve concrete columns, and a plurality of sleeve valve concrete columns are distributed at intervals among the tube shed tubes.
4. The structure of claim 1, wherein the end of the tube-shed tube is tapered.
5. The structure of claim 1, wherein the side wall of the pipe shed is provided with a plurality of grouting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109680.XA CN115977165A (en) | 2023-02-14 | 2023-02-14 | Reinforced structure of shield tunnel closely through building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310109680.XA CN115977165A (en) | 2023-02-14 | 2023-02-14 | Reinforced structure of shield tunnel closely through building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115977165A true CN115977165A (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310109680.XA Pending CN115977165A (en) | 2023-02-14 | 2023-02-14 | Reinforced structure of shield tunnel closely through building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027044A (en) * | 2023-09-08 | 2023-11-10 | 北京瑞科同创能源科技有限公司 | Foundation structure and wind driven generator |
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2023
- 2023-02-14 CN CN202310109680.XA patent/CN115977165A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027044A (en) * | 2023-09-08 | 2023-11-10 | 北京瑞科同创能源科技有限公司 | Foundation structure and wind driven generator |
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