CN112324473A - Telescopic steel pipe sheet matched with tunnel connection channel construction and installation method - Google Patents
Telescopic steel pipe sheet matched with tunnel connection channel construction and installation method Download PDFInfo
- Publication number
- CN112324473A CN112324473A CN202011145749.7A CN202011145749A CN112324473A CN 112324473 A CN112324473 A CN 112324473A CN 202011145749 A CN202011145749 A CN 202011145749A CN 112324473 A CN112324473 A CN 112324473A
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- China
- Prior art keywords
- steel pipe
- bottom plate
- plate
- construction
- jacking
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
Abstract
The utility model relates to a flexible steel-pipe piece and installation method that cooperation tunnel contact passageway was under construction belongs to track traffic engineering technical field, and this steel-pipe piece includes that the surface is curved rectangle bottom plate, and the rectangle bottom plate can carry out length in width direction and stretch out and draw back, connects first curb plate at the ascending both ends of rectangle bottom plate width direction, is equipped with the second curb plate mutually perpendicular with first curb plate at rectangle bottom plate length direction, and the top of rectangle bottom plate is equipped with the skeleton, the skeleton all is equipped with a plurality of atress steel pipe in the length of rectangle bottom plate and width direction, and first curb plate and second curb plate are equipped with the jacking steel pipe, jacking steel pipe slidable ground is fixed on the atress steel pipe. The steel pipe piece solves the problems that the pipe piece of the shield tunnel contact passage section is difficult to disassemble and cannot be repeatedly used.
Description
Technical Field
The invention belongs to the field of rail traffic engineering, and particularly relates to a telescopic steel pipe sheet matched with tunnel connection channel construction and an installation method.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The shield or TBM tunnel is supported by precast concrete segments mostly, and the segments which are installed need to be removed firstly when the tunnel connection channel is constructed. At present, the pre-support concrete segment at the connection channel is mostly removed by adopting an air pick, the vibration generated when the air pick is removed can influence the stability of the existing structure, the workload of removing the air pick is large, the construction speed is low, and the construction safety is poor. In order to facilitate the construction of the connection channel, part of the engineering is constructed by adopting steel pipe pieces at the connection channel, but the steel pipe pieces and the concrete pipe pieces form an integral stress system after being installed, the steel pipe pieces are extruded by the adjacent concrete pipe pieces and are difficult to hang out, and the steel pipe pieces need to be cut by gas welding. Although the cutting construction speed of the steel pipe piece is superior to that of the concrete pipe piece, the cost of the steel pipe piece is high, the cut steel pipe piece cannot be reused, and serious material waste is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention discloses a steel pipe piece matched with tunnel connection channel construction and an installation method, aiming at solving the problems that the pipe piece of the shield tunnel connection channel section is difficult to disassemble and cannot be reused.
The utility model discloses at least one embodiment provides a flexible steel pipe piece of cooperation tunnel contact passageway construction, this steel pipe piece is curved rectangle bottom plate including the surface, and the rectangle bottom plate can carry out length at width direction and stretch out and draw back, connects first curb plate at the ascending both ends of rectangle bottom plate width direction, is equipped with the second curb plate mutually perpendicular with first curb plate at rectangle bottom plate length direction, and the top of rectangle bottom plate is equipped with the skeleton, the skeleton all is equipped with a plurality of atress steel pipe on the length of rectangle bottom plate and width direction, and first curb plate and second curb plate all are equipped with the jacking steel pipe, the jacking steel pipe slidable ground is fixed on the atress steel pipe.
Furthermore, the jacking steel pipe is sleeved inside the stressed steel pipe, and pin shaft holes are formed in the jacking steel pipe and the stressed steel pipe.
Furthermore, the jacking steel pipe is provided with a bracket which is inserted into the stressed steel pipe.
Furthermore, a reserved grouting hole is formed in the rectangular bottom plate.
Further, all be equipped with the bolt hole on first curb plate and the second curb plate.
Furthermore, a PVC plastic plate is arranged on the outer side of the rectangular bottom plate, and waterproof sealing strips are pasted on the periphery of the PVC plastic plate.
Further, a rubber sealing block is arranged at the connecting position of the first side plate and the second side plate.
Furthermore, a hanging rod is arranged at the center of the steel framework.
At least one embodiment of the present disclosure provides an assembling method of a telescopic steel pipe piece matched with tunnel connection channel construction based on any one of the above, including the following steps:
extending out the jacking steel pipe connected with the side plates, fixing the jacking steel pipe when the external dimension of the steel pipe sheet is consistent with that of the precast concrete segment, and installing a plastic plate on the outer side of the rectangular bottom plate;
placing the steel pipe piece on a preset position, and fixing the steel pipe piece and the adjacent concrete prefabricated pipe piece together; a sealing block is arranged at the joint of the first side plate and the second side plate;
and the jacking steel pipe connected with the side plates is inserted into the stressed steel pipe again, and the steel pipe sheets are detached after a certain gap exists between the side plates of the steel pipe sheets and the adjacent concrete pipe sheets, so that the repeated utilization is realized.
Furthermore, when the steel pipe sheet is installed, a grouting anchor rod can be driven into the grouting hole in the steel pipe sheet, and a grout stop plug needs to be installed after grouting of the anchor rod, so that grout is prevented from flowing out. The aperture in slip casting hole is greater than the diameter of stock, and the slip casting is ended the thick liquid and is filled in the back and get rid of after the solidification of thick liquid, prevents that the later stage from ending the thick liquid and filling in and hindering the section of jurisdiction and dismantling.
The beneficial effects of this disclosure are as follows:
(1) the bottom bearing plate in the flexible steel pipe piece that this disclosure provided can stretch out and draw back, makes the shape and the concrete steel pipe piece structure of this steel pipe piece the same through the telescopic machanism on the control bearing plate, so can realize demolising of section of jurisdiction through controlling telescopic machanism, compares and demolishs in driven section of jurisdiction, and this section of jurisdiction can realize demolising fast and reuse.
(2) The utility model provides a be equipped with the skeleton on the bottom loading board in the flexible steel pipe piece be equipped with the atress steel pipe on the skeleton, rectangle loading board and arc loading board are connected with the atress steel pipe through advancing the steel pipe in the top, through the combined action of loading board, advancing steel pipe, atress steel pipe and skeleton like this, have strengthened the wholeness and the stability of steel pipe piece.
(3) The utility model provides an outside installation PVC plastic slab 12 on the bottom loading board in the flexible steel pipe piece, bottom loading board and grouting material bond and cause the section of jurisdiction to demolish the difficulty when both preventing like this that the bottom loading board slides the department and leak thick liquid and can avoid slip casting, the later stage steel pipe piece of being convenient for dismantlement.
(4) The bottom loading board colors and has the slip casting hole in the flexible steel pipe piece that this slip casting hole of accessible is squeezed into the slip casting stock or is carried out the secondary slip casting and consolidate the rock mass to this consolidates the ground behind the steel pipe piece wall, ensures the stability of ground behind the piece wall. And meanwhile, the slurry stop plug is installed after the anchor rod performs grouting, so that slurry is prevented from flowing out, the slurry stop plug is removed after the grouting is finished and the slurry is solidified, and the slurry stop plug in the later stage is prevented from blocking the detachment of the duct piece.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a telescopic steel pipe sheet for cooperating with tunnel connection passage construction provided in an embodiment of the present disclosure.
FIG. 2 is a side view of the steel pipe sheet provided in the embodiment of FIG. 1;
fig. 3 is a structural view of a rectangular bottom plate in the steel pipe sheet according to the embodiment of the present disclosure;
fig. 4 is a cross-sectional view of a limiting device of a steel pipe sheet according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a hoisting rod in a steel pipe sheet according to an embodiment of the disclosure;
FIG. 6 is a schematic view of a hoisting rod grouting hole anchor rod in a steel pipe sheet according to an embodiment of the disclosure
Fig. 7 is a steel pipe sheet assembly structure view provided in the embodiment of the present disclosure.
In the figure: 1. rectangle loading board, 2, rubber seal piece, 3, the steel pipe is advanced in the top, 4, arc loading board, 5, reserve the bolt hole, 6, atress steel pipe, 7, bracket, 8, bottom loading board, 9, lifting rod, 10, reserve the injected hole, 11, bolt hole, 12, waterproof sealing strip, 13, rectangular form rubber seal pad, 14, PVC plastic slab, 15, end thick liquid stopper, 16, slip casting stock, 17, spacing bolt.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
In the description of the present disclosure, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure.
As shown in fig. 1, the embodiment of the present disclosure provides a telescopic steel pipe piece for cooperating with tunnel connection channel construction, and the steel pipe piece mainly comprises a bearing plate, a steel pipe framework, a hoisting rod and the like.
The loading board is curved bottom loading board 8 including the surface, bottom loading board 8 is rectangular platelike, bottom loading board 8 can stretch out and draw back in width direction refer to figure 3, is simultaneously at the fixed arc loading board 4 of the width direction of square bottom loading board 8, this arc loading board 4 perpendicular to rectangle loading board 1, bottom loading board 8's inside is also the top and is equipped with a steel pipe frame, steel pipe frame respectively is equipped with the atress steel pipe 6 that three horizontally levels set up in rectangle loading board width direction's both sides, and these three atress steel pipes 3 insert in atress steel pipe 6, can realize the flexible of arc loading board 4.
Further, 8 length direction of bottom loading board respectively are equipped with a rectangle loading board 1, rectangle loading board 1 respectively with 8 and the arc loading board 4 mutually perpendicular of bottom loading board, the steel pipe frame is at two vertical atress steel pipes 6 of placing and being parallel to each other of rectangle loading board length direction simultaneously, connect two atress steel pipes 3 on the rectangle loading board 1, these two atress steel pipes 3 insert in the atress steel pipe 6, can realize rectangle loading board 1, are equipped with rectangular form rubber packing pad 13 between flexible rectangle loading board 1 and the bottom loading board 8.
Therefore, the steel pipe piece disclosed in the embodiment can enable the shape of the steel pipe piece to be the same as that of the concrete steel pipe piece by moving the arc-shaped bearing plate 4 and the rectangular bearing plate 1, and the structure is simple.
In order to fix the jacking steel pipe 3 on the stressed steel pipe 6, as shown in fig. 4, a row of reserved bolt holes 5 are formed in the same positions of the jacking steel pipe 3 and the stressed steel pipe 6 in the length direction, and when the jacking steel pipe 3 and the positioning holes in the stressed steel pipe 6 are overlapped, the jacking steel pipe and the stressed steel pipe can be fixed by the limiting bolts 17 penetrating through the positioning holes between the jacking steel pipe 3 and the stressed steel pipe 6 to form the steel pipe sheet.
The steel pipe piece after will expanding in this embodiment is installed on predetermined position, when needs pull down the steel pipe piece, compresses arc loading board 4 and rectangle loading board 1 respectively, and concrete steel pipe piece around with is separated, pull down the steel pipe piece at last can, for the ease of jacking the steel pipe and impress in the atress steel pipe all installed two brackets 7 on the jacking steel pipe, the bracket is similar to the fixed block, impresses the jacking steel pipe in the atress steel pipe through beating the bracket.
Further, as shown in fig. 2, a layer of PVC plastic plate 14 is installed on the outer side of the bottom bearing plate 8, so that the sliding position of the bottom bearing plate 8 is prevented from leaking slurry, and the steel pipe sheet can be conveniently detached in the later period. Simultaneously at bottom loading board 8 installation PVC plastic slab and paste waterproof sealing strip 12 all around, prevent that bottom loading board slidable department and section of jurisdiction from appearing leaking thick liquid all around and later stage steel-pipe piece demolish difficult scheduling problem. And the bottom bearing plate provided with the PVC plastic plate is simply adhered, so that the shrinkage of the pressure relief bottom bearing plate in the later period is not influenced.
The rectangular bearing plate 1 and the arc-shaped supporting plate 4 on the steel pipe piece are respectively provided with a bolt hole 11 connected with the adjacent concrete steel pipe piece on the surface, so that the steel pipe piece is connected with the adjacent concrete steel pipe piece through the bolt to be fixed.
In order to realize the hoisting of the steel pipe piece in the embodiment, a hoisting rod 9 is arranged at the center of the steel pipe framework inside the steel pipe piece, referring to fig. 5, a traction hole is arranged at the top of the hoisting rod 9, an external thread is arranged at the bottom of the hoisting rod and connected with the framework structure, and in the embodiment, the hoisting equipment is connected with the hoisting rod 9 to realize the hoisting of the steel pipe piece.
Certainly, in other embodiments, the hanger rod can be replaced by a traditional U-shaped hoisting steel bar, and the segment is hoisted by hooking the U-shaped hoisting steel bar, or the U-shaped hoisting steel bar is arranged in the middle and around the steel tube segment.
As shown in fig. 1 and 6, a reserved grouting hole 10 is formed in the bottom bearing plate in this embodiment, a grouting anchor rod 16 can be driven into the grouting hole, and a grout stop plug 15 needs to be installed after grouting of the anchor rod to prevent grout from flowing out. After the anchor rod is adopted for grouting, the rock mass around the steel pipe sheet can be reinforced, and the construction of the connecting channel is facilitated.
Example 2:
the embodiment of the disclosure provides an assembling method of a telescopic steel pipe sheet based on the construction matched with a tunnel connection channel, which comprises the following steps:
the integral construction process of the duct piece is as follows:
(1) before the pipe piece is installed, the bearing plate extends outwards
Before the section of jurisdiction installation, advance the steel pipe through the top that stimulates on arc loading board and the rectangle loading board, make rectangle loading board and arc loading board overhanging, the external dimension that extends the section of jurisdiction is unanimous with the prefabricated section of jurisdiction of concrete. Fix in the atress steel pipe through spacing bolt will jack in the steel pipe, install the PVC plastic slab and paste waterproof sealing strip all around in the bottom loading board outside simultaneously, can prevent like this that the bottom loading board slidable department from appearing leaking thick liquid and later stage steel-pipe piece demolishs difficult scheduling problem.
The PVC plastic plate bottom bearing plate is simple and easy to adhere, has certain strength and flexibility, is not easy to damage, and does not influence the shrinkage of the pressure relief bottom bearing plate in the later period.
(2) When the duct piece is installed:
A. the steel pipe piece is connected with the hoisting rod on the steel pipe piece through the hoisting machine, the steel pipe piece which extends outwards is hoisted on a preset position, the steel pipe piece is connected with the adjacent precast concrete pipe piece through the bolt, the sealing measure between the steel pipe piece and the concrete pipe piece is noticed at the moment, and the grout can not flow out when grouting behind the wall is ensured.
B. After the steel pipe sheet and the concrete pipe sheet are replaced and connected, the rubber sealing blocks 2 with corresponding sizes are installed at the opening parts at the four corners of the steel pipe sheet, namely the places where the rectangular bearing plate and the arc-shaped bearing plate are connected, so that the steel pipe sheet and the concrete pipe sheet are tightly attached to each other, and the figure 7 is shown.
(3) Before construction of connecting channel
And (3) a grouting anchor rod is driven into the grouting hole reserved in the steel pipe piece so as to reinforce the rock soil behind the steel pipe piece wall and ensure the stability of the rock soil behind the piece wall. At this time, the grout stop plug is required to be installed after the anchor rod is grouted so as to prevent grout from flowing out. And after grouting is finished and slurry is solidified, the slurry stop plug is removed, so that the slurry stop plug in the later stage is prevented from obstructing the detachment of the duct piece.
(4) During the construction of the connecting channel
The limiting bolt for connecting the stressed steel pipe and the jacking steel pipe is firstly detached, and then the bracket arranged on the hammering jacking steel pipe drives the jacking steel pipe and the bearing plate to contract. After the pipe piece and the concrete pipe piece have a certain gap, the steel pipe piece is detached through the hoisting rod, and the recycling is realized.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present disclosure and not to limit, although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present disclosure without departing from the spirit and scope of the technical solutions, and all of them should be covered in the claims of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. The utility model provides a flexible steel pipe piece of cooperation tunnel contact passageway construction, its characterized in that is curved rectangle bottom plate including the surface, and the rectangle bottom plate can carry out length at width direction and stretch out and draw back, connects first curb plate at the ascending both ends of rectangle bottom plate width direction, is equipped with the second curb plate mutually perpendicular with first curb plate at rectangle bottom plate length direction, and the top of rectangle bottom plate is equipped with the skeleton, the skeleton all is equipped with a plurality of atress steel pipe on the length of rectangle bottom plate and width direction, and first curb plate and second curb plate are equipped with the jacking steel pipe, jacking steel pipe slidable ground is fixed on the atress steel pipe.
2. The telescopic steel pipe sheet matched with the tunnel communication channel for construction as claimed in claim 1, wherein the jacking steel pipe is sleeved inside the stressed steel pipe, and the jacking steel pipe and the stressed steel pipe are provided with pin shaft holes.
3. The telescopic steel pipe sheet matched with the construction of the communication channel of the tunnel as claimed in claim 1, wherein the jacking steel pipe is provided with a bracket inserted into the stressed steel pipe.
4. The telescopic steel pipe sheet matched with the construction of the communication channel of the tunnel as claimed in claim 1, wherein the rectangular bottom plate is provided with a reserved grouting hole.
5. The telescopic steel pipe sheet matched with the construction of the communication channel of the tunnel as claimed in claim 1, wherein the first side plate and the second side plate are both provided with bolt holes.
6. The telescopic steel pipe sheet matched with the construction of the communication channel of the tunnel as claimed in claim 1, wherein a PVC plastic plate is arranged on the outer side of the rectangular bottom plate, and waterproof sealing strips are adhered to the periphery of the PVC plastic plate.
7. The telescopic steel pipe sheet matched with the construction of the communication passage of the tunnel as claimed in claim 1, wherein a rubber sealing block is provided at a position where the first side plate and the second side plate are connected.
8. The telescopic steel pipe sheet for interconnecting tunnel construction as claimed in claim 1, wherein a hanger bar is provided at a central position of the steel skeleton.
9. The assembling method of the telescopic steel pipe sheet matched with the tunnel connection channel construction according to any one of claims 1 to 8 is characterized by comprising the following steps:
extending out the jacking steel pipe connected with the side plates, fixing the jacking steel pipe when the external dimension of the steel pipe sheet is consistent with that of the precast concrete segment, and installing a plastic plate on the outer side of the rectangular bottom plate;
placing the steel pipe piece on a preset position, and fixing the steel pipe piece and the adjacent concrete prefabricated pipe piece together; a sealing block is arranged at the joint of the first side plate and the second side plate;
and the jacking steel pipe connected with the side plates is inserted into the stressed steel pipe again, and the steel pipe sheets are detached after a certain gap exists between the side plates of the steel pipe sheets and the adjacent concrete pipe sheets, so that the repeated utilization is realized.
10. The assembly method according to claim 9, wherein a grouting anchor is driven into the grouting hole of the steel pipe sheet when the steel pipe sheet is installed, and a grout stop plug is installed after the anchor is grouted to prevent grout from flowing out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145749.7A CN112324473B (en) | 2020-10-23 | 2020-10-23 | Telescopic steel pipe sheet matched with tunnel connection channel construction and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145749.7A CN112324473B (en) | 2020-10-23 | 2020-10-23 | Telescopic steel pipe sheet matched with tunnel connection channel construction and installation method |
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| CN112324473A true CN112324473A (en) | 2021-02-05 |
| CN112324473B CN112324473B (en) | 2022-02-11 |
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| CN202011145749.7A Active CN112324473B (en) | 2020-10-23 | 2020-10-23 | Telescopic steel pipe sheet matched with tunnel connection channel construction and installation method |
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Cited By (1)
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| CN117128008A (en) * | 2023-10-26 | 2023-11-28 | 江苏快鹿地铁钢结构制造有限公司 | Quick assembly type steel pipe sheet for tunnel connecting channel |
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| CN117128008B (en) * | 2023-10-26 | 2024-02-23 | 江苏快鹿地铁钢结构制造有限公司 | Quick assembly type steel pipe sheet for tunnel connecting channel |
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|---|---|
| CN112324473B (en) | 2022-02-11 |
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Inventor after: Li Kejin Inventor after: Liang Erbin Inventor after: Wang Zhikang Inventor after: Li Xiudong Inventor after: Wang Jun Inventor after: Wu Shengzhi Inventor after: Han Jianyong Inventor before: Li Kejin Inventor before: Liang Erbin Inventor before: Wang Zhikang Inventor before: Li Xiudong Inventor before: Wang Jun Inventor before: Wu Shengzhi Inventor before: Han Jianyong |
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