CN218759932U - Tube curtain method tunnel supporting construction - Google Patents
Tube curtain method tunnel supporting construction Download PDFInfo
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- CN218759932U CN218759932U CN202222997656.8U CN202222997656U CN218759932U CN 218759932 U CN218759932 U CN 218759932U CN 202222997656 U CN202222997656 U CN 202222997656U CN 218759932 U CN218759932 U CN 218759932U
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Abstract
The utility model discloses a pipe curtain method tunnel supporting construction belongs to the tunnel engineering field, include the pipe fitting that sets up along tunnel profile hoop interval and the coupling assembling that is used for connecting two adjacent pipe fittings, seted up the mounting groove on the adjacent lateral wall face of two adjacent pipe curtain units, coupling assembling corresponds this mounting groove setting for connect through coupling assembling between two adjacent pipe curtain units, and realize the intercommunication in pipe curtain unit inner space, make the concrete structure can be closely knit with the inside packing of pipe curtain structure. Furthermore, the pipe curtain unit and the connecting assembly are provided with anchoring assemblies, concrete is poured into the inner space of the pipe curtain unit and the connecting assembly, the concrete and the anchoring assemblies form bonding anchoring, and the connection between the concrete and the pipe curtain unit and the connecting assembly is strengthened to form a steel-concrete structure, so that the whole pipe curtain structure is used as a tunnel supporting system.
Description
Technical Field
The utility model belongs to the tunnel engineering field, concretely relates to pipe curtain method tunnel supporting construction.
Background
With the continuous advance of urbanization in China, large-span shallow-buried tunnels are increasing, cases of building constructions such as underpass railways, roads, subway stations and the like are increasing, the requirement on tunnel construction settlement is higher and higher, and a pipe curtain structure method for the tunnels under complex conditions also enters engineering practice increasingly.
The tunnel with the pipe curtain structure method is characterized in that a reinforced concrete structure is poured inside steel pipes which are constructed firstly along the contour of the tunnel and connected into a ring, the construction of a tunnel supporting structure is completed before the tunnel is excavated, and soil bodies in the range of the tunnel are excavated under the protection of the supporting structure, so that the tunnel construction problems of large span, underground excavation, small construction settlement and the like can be solved well.
Therefore, a new tube curtain structure design is needed at present, the steel tube of the tube curtain structure is also used as a part of the bearing structure, steel materials are saved through the tube curtain steel tube, and economic benefits are improved.
SUMMERY OF THE UTILITY MODEL
To prior art's more than defect or improve in the demand one or more, the utility model provides a pipe curtain method tunnel supporting construction, wherein through setting up the pipe curtain unit along tunnel hoop interval to get up two adjacent pipe curtain units through coupling assembling, the inner space between its pipe curtain unit passes through coupling assembling intercommunication, and is provided with the anchor subassembly on the internal face of pipe curtain structure, pour the concrete in inside intercommunication space simultaneously, make pipe curtain unit and inside steel construction and concrete component steel-concrete structure, in order to regard as the system of strutting in tunnel.
In order to achieve the above purpose, the utility model provides a pipe curtain method tunnel supporting structure, which comprises a plurality of pipe curtain units arranged along the circumferential direction of the tunnel at intervals and a plurality of connecting components used for connecting two adjacent pipe curtain units, and is characterized in that,
the both sides of managing the curtain unit are seted up respectively and are run through the mounting groove of interior outer wall, coupling assembling corresponds adjacent two the mounting groove of managing the curtain unit corresponds the connection, makes two adjacent the inner space intercommunication of managing the curtain unit, and
an inner space formed by the plurality of tube sheet units and the plurality of connection assemblies is filled with concrete; and is
And arranging an anchoring assembly on at least the inner peripheral wall surface of the pipe curtain unit so that the pipe curtain unit and the concrete form anchoring connection.
As a further improvement of the present invention, the connecting assembly includes at least one connecting member;
the inner wall surface of the notch of the mounting groove is correspondingly connected with the connecting piece, and the end part of the connecting piece extends towards the interior of the pipe curtain unit.
As a further improvement of the utility model, the mounting grooves are through grooves penetrating through both ends of the pipe curtain unit, and the connecting pieces are plate pieces and are two pieces which are respectively arranged corresponding to the inner wall surfaces of the through grooves;
the plate is arranged along the longitudinal extension of the pipe curtain unit, so that the inner space of the pipe curtain unit is isolated from the outside.
As a further improvement, the plate is provided with end plates at both ends, so that the plate and the concrete form an anchoring bond.
As a further improvement of the utility model, two be provided with bearing structure between the plate, just bearing structure's both ends respectively with two the plate corresponds the connection, is used for the reinforcing coupling assembling intensity.
As a further improvement, the supporting structure is an I-steel, two wing plates are respectively attached to the I-steel.
As a further improvement, the I-steel is arranged in two along the hoop a plurality of between the plates, and
at least two I-steel correspond adjacent two mounting groove notch setting respectively.
As a further improvement of the utility model, the I-shaped steel extends longitudinally along the pipe curtain unit or is continuously arranged;
and through holes are formed in the I-shaped steel web plate, so that the inner spaces of the pipe curtain units are communicated.
As a further improvement of the utility model, the anchoring component comprises anchoring pieces which are a plurality of anchoring pieces arranged on the inner side wall surface of the pipe curtain unit at intervals along the circumferential direction and the longitudinal direction,
and/or
The anchor is a plurality of that the correspondence sets up on the inside wall face of coupling assembling.
As a further improvement, the anchoring assembly comprises a ribbed plate, and the ribbed plate corresponds to be set up on the web of the I-steel.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) The utility model discloses a pipe curtain method tunnel supporting construction, it is through setting up the pipe curtain unit along tunnel hoop interval to connect together two adjacent pipe curtain units through coupling assembling, the inner space between its pipe curtain unit communicates through coupling assembling, and is provided with the anchor subassembly on the internal face of pipe curtain structure, pours the concrete in the inner intercommunication space simultaneously, makes pipe curtain unit and inside steel construction and concrete constitute the steel-concrete structure, in order to be regarded as the supporting system of tunnel;
(2) The utility model discloses a pipe curtain method tunnel supporting construction, it is through offering the logical groove that runs through both ends in pipe curtain unit both sides to through keeping off the soil clamp plate with two adjacent pipe curtain unit's the side of the logical groove notch correspond to connect together, and should keep off the soil clamp plate and arrange along the tunnel is vertical in succession, make adjacent pipe curtain unit link to each other and the inner space of pipe curtain unit communicates;
(3) The utility model discloses a pipe curtain method tunnel supporting construction, it is through setting up the I-steel between two fender soil clamp plates to as bearing structure, the I-steel is laminated mutually with the fender soil clamp plate through the pterygoid lamina, through increasing the area of contact between bearing structure and the fender soil clamp plate, has improved support strength, has reduced the stress concentration condition of fender soil clamp plate at the support contact point, has optimized the whole atress of pipe curtain, its fender soil clamp plate passes through bolted connection with the pterygoid lamina of I-steel, has reduced the welding work volume inside the pipe curtain unit;
(4) The utility model discloses a pipe curtain method tunnel supporting construction, the through-hole has been seted up on the web of I-steel for still keep the intercommunication in inner space between the pipe curtain unit, ensure that the inner space of whole pipe curtain structure can be filled to the concrete, realize that the concrete of pipe curtain structure is close and solid;
(5) The utility model discloses a pipe curtain method tunnel supporting construction, it sets up anchor assembly through on the inner wall of pipe curtain unit and on the fender soil clamp plate, sets up the floor that adds on the web of I-steel, has increased the adhesive property of pipe curtain unit, fender soil clamp plate and concrete, has improved the wholeness of structure.
Drawings
Fig. 1 is a schematic overall structure diagram of a tube curtain method tunnel supporting structure in an embodiment of the present invention;
fig. 2 is a partial structural schematic view of a pipe curtain method tunnel supporting structure in the embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a pipe-curtain tunnel supporting structure after being filled with concrete according to an embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. a tube curtain unit; 2. a soil retaining pressure plate; 3. i-shaped steel; 4. anchoring piece
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example (b):
the pipe-curtain tunnel supporting structure in the preferred embodiment of the utility model is shown in figures 1-3. Wherein, pipe curtain method tunnel supporting construction includes the pipe curtain unit that sets up along tunnel profile hoop interval and is used for connecting the connecting piece of two adjacent pipe curtain units, and connect through coupling assembling between the two adjacent pipe curtain units, realize the intercommunication of pipe curtain unit inner space, and be provided with the anchor subassembly in pipe curtain unit and coupling assembling, form the bonding anchor through the concrete of anchor subassembly with the pipe curtain unit inside, strengthen the relation between concrete and the pipe curtain unit, and form steel-concrete structure, make the shell of pipe curtain unit can regard as long-term the support.
As shown in fig. 1, the pipe curtain method tunnel supporting structure includes pipe curtain units 1 arranged along a tunnel contour at intervals in a circumferential direction and a connection assembly for connecting the adjacent pipe curtain units 1, and at the same time, the connection assembly connects inner spaces of the two adjacent pipe curtain units 1 to form a pipe curtain structure.
Further, the tube sheet unit 1 is a pipe structure extending in the longitudinal direction of the tunnel, and the tube sheet unit is plural in the longitudinal direction of the tunnel. Further preferably, the mounting grooves are respectively formed in two sides of the pipe curtain unit 1 for mounting the connecting assembly, two ends of the connecting assembly are respectively and correspondingly connected with the mounting groove notches of the two adjacent pipe curtain units 1, and the inner space of the two adjacent pipe curtain units 1 is communicated.
Further, the inside wall face and the coupling assembling of mounting groove notch combine closely to carry out water repellent to its junction, keep whole pipe curtain structure sealed on vertical, realize the isolated of the inner space of pipe curtain unit and external soil body.
Further, coupling assembling includes at least one connecting piece, and the both ends of connecting piece correspond the corresponding welding of notch inside wall face of two adjacent pipe curtain units 1 respectively for two adjacent pipe curtain units 1 link to each other.
In a preferred embodiment, the connecting member is one, and the connecting member is a tubular structure, and the form of the mounting groove corresponds to that of the mounting groove, so that the side edge of the notch of the mounting groove is matched with the outer side wall surface of the connecting member, and the pipe fitting structure connects two adjacent pipe curtain units and communicates the inner space of the pipe curtain units. Furthermore, the connecting piece can also be a plurality of connecting pieces, and all the connecting pieces are mutually spliced to form a pipe fitting structure.
In a specific embodiment, the connecting piece is the arc steel sheet structure, and the both sides limit of two arc steel sheets corresponds the connection for two arc steel sheets splice into a complete pipe structure, and is corresponding, and the mounting groove between the double-phase adjacent pipe curtain unit 1 also sets up the circular notch for corresponding, makes two arc steel sheets can correspond the welding of notch inside wall face, and through form interface channel between two pipe curtain units 1 in order to realize the inner space intercommunication of double-phase adjacent pipe curtain unit 1.
As shown in fig. 2, in embodiment 1, the mounting groove is a through groove extending longitudinally on the side wall surface of the pipe curtain unit 1 and penetrating through both end surfaces, and the through groove is respectively disposed on both sides of the pipe curtain unit 1, so that the structure of the pipe curtain unit 1 includes two arc-shaped steel plate shells arranged at intervals along the radial direction of the tunnel, the connecting assembly includes two soil retaining pressure plates 2 distributed along the radial direction in parallel at intervals, and both ends of the soil retaining pressure plates 2 are respectively connected with the side edge of the notch of the mounting groove correspondingly, so as to realize the connection of two adjacent pipe curtain units 1. Further preferably, the retaining pressure plate 2 is a plurality of retaining pressure plates arranged continuously along the longitudinal direction, and the adjacent sides of the retaining pressure plate 2 are correspondingly connected to communicate the inner spaces of the two adjacent pipe curtain units 1, so as to form a circumferential communication cavity around the outside of the tunnel boundary in the circumferential direction, and the cavity extends along the longitudinal direction.
Further, the both ends of retaining the soil clamp plate 2 extend respectively and get into the inner space of two pipe curtain units 1, and are provided with the end plate respectively at the both ends tip of retaining the soil clamp plate 2, and this end plate perpendicular to retaining the soil clamp plate 2 to strengthen the relation of retaining the soil clamp plate 2 and the inside concrete of pipe curtain unit 1 through the end plate, realize whole steel-firm of structure. Further, the specific form of the length L1 of the end part extending into the pipe curtain unit 1 and the size L2 of the end plate is determined according to the force transmission between the steel plate and the concrete.
Further, the connecting assembly further comprises a support for connecting the connecting members of the connecting assembly or connecting the two inner side wall surfaces of a single connecting member, so as to improve the structural strength of the connecting assembly. It is further preferred that the support comprises structural members extending radially of the tunnel to resist soil pressure radially of the tunnel, which may be steel studs or other steel structural members.
As shown in fig. 2, in the embodiment 1 of the present application, the support is an i-beam 3, the upper and lower wing plates of the i-beam 3 are respectively connected to two retaining pressure plates 2 distributed along the radial direction of the tunnel, and the structural wing plates of the i-beam 3 are correspondingly connected to the retaining pressure plates 2. Further, the wing plates on the I-shaped steel 3 are connected with the soil retaining pressure plate 2 through bolts, and the welding workload inside the pipe curtain unit 1 is reduced.
Furthermore, the I-beams 3 are respectively arranged on two sides of the retaining pressure plate 2, the I-beams 3 are correspondingly arranged at the mounting grooves, the structural strength of the pipe curtain unit 1 is improved, one side of a wing plate of each I-beam 3 extends into the pipe curtain unit 1, and a screw hole is formed in the position, extending into the pipe curtain unit 1, of the wing plate, so that a constructor can realize the connection of the I-beams 3 and the retaining pressure plate 2 in the pipe curtain unit 1.
Further, the plurality of i-beams 3 can be longitudinally extended or longitudinally segmented, and the i-beams 3 can be longitudinally spaced or continuously arranged, wherein the clear distance length of the i-beams 3 along the longitudinal segments is 20-30 cm in a conventional state, one or more i-beams can be correspondingly arranged according to the longitudinal length of the soil retaining pressure plate 2 or the pipe curtain unit 1, the number of i-beams can be determined according to the transportation and construction conditions on site, and the longitudinal segment length of the i-beams 3 is not particularly limited.
In a preferred embodiment of the present application, the i-beams 3 are continuously arranged along the longitudinal direction, and two adjacent i-beams 3 are correspondingly connected, so that the inner spaces of two adjacent tube curtain units 1 are communicated by forming through holes on the web of the i-beams 3. Further, two wing plates of the h-shaped steel 3 extend along the longitudinal direction, so that the wing plates of two adjacent h-shaped steel 3 are correspondingly connected, and a through hole is formed between the two web plates, so that the inner spaces of the tube curtain units 1 are communicated.
Further, an anchoring assembly is arranged inside the pipe curtain structure, and the connection between the pipe curtain unit 1 and the internal structure and the concrete is strengthened through the anchoring assembly, further preferably, the anchoring assembly is arranged on the inner side wall surface of the pipe curtain unit 1 and comprises anchoring parts 4, and the anchoring parts 4 are arranged on the inner side wall surface in the annular direction and the longitudinal direction along the pipe curtain unit 1 and are used for strengthening the connection between the pipe curtain unit 1 and the concrete.
Further, the anchoring piece 4 is correspondingly arranged on the connecting piece to realize anchoring and bonding between the connecting piece and the concrete. Further preferably, the size and spacing of the anchors 4 are determined by the structural forces in the actual application.
In one embodiment, the anchoring members 4 are provided at intervals in the circumferential direction and the longitudinal direction on the inner peripheral wall surface of the pipe curtain unit 1, and the anchoring members 4 are provided at intervals on the surface of the soil guard pressing plate 2 contacting the concrete for improving the connection performance between the soil guard pressing plate 2 and the concrete. Further, the anchor 4 is preferably a pin.
Further, the anchoring assembly further comprises a ribbed plate arranged on a web plate of the I-shaped steel 3, so that the structural strength of the I-shaped steel 3 is improved, and meanwhile, the relation between the I-shaped steel 3 and concrete is enhanced.
Further, concrete in the pipe curtain structure is filled into the space between the pipe curtain unit 1 and the connecting assembly, so that the communicating space inside the pipe curtain structure is compact, and anchoring bonding is formed between the concrete and the anchoring assembly, so that the concrete, the pipe curtain unit 1 and the connecting assembly form a steel-concrete structure, and a tunnel supporting structure is obtained.
In order to better understand the utility model discloses a forming process has still proposed this pipe curtain method tunnel supporting construction's construction method, includes following step:
s1, selecting pipe curtain units with corresponding diameters, wall thicknesses and corresponding parameters according to actual engineering requirements;
s2, jacking the pipe curtain units 1 at intervals along the circumferential direction of the tunnel profile, wherein the distance between the pipe curtain units 1 meets the construction requirement;
s3, after the pipe curtain units 1 are pushed in, cutting the adjacent side wall surfaces of the two adjacent pipe curtain units 1 to form mounting grooves, wherein two sides of the notches of the mounting grooves, which are arranged at intervals along the radial direction, are coaxial with the pipe curtain units 1, and the cutting work of the two adjacent pipe curtain units 1 is carried out simultaneously so as to weld the soil retaining pressing plates 2 as soon as possible;
s4, after the cutting construction on the pipe curtain units 1 is completed, soil bodies in the range of the notches of the two pipe curtain units 1 are broken;
s5, two retaining pressure plates 2 are correspondingly arranged on two side edges of the notches of the two mounting grooves at intervals along the radial direction, two ends of each retaining pressure plate 2 respectively extend into the two pipe curtain units 1, and the two retaining pressure plates 2 are correspondingly welded with the two side edges of the two notches respectively;
s6, erecting an I-shaped steel 3 between the two soil retaining pressure plates 2, enabling the soil retaining pressure plates 2 to be attached to wing plates of the I-shaped steel 3, wedging the I-shaped steel 3 and the soil retaining pressure plates 2 under the action of soil pressure, and fixedly connecting the soil retaining pressure plates 2 with the wing plates of the I-shaped steel 3 through bolts;
s7, performing the operations of the steps S2 to S6 in a segmented mode along the longitudinal direction and the annular direction of the tunnel so as to connect the pipe curtain units 1 within the construction range to form a complete pipe curtain structure;
s8, welding the interior of the pipe curtain unit 1, and welding the anchoring piece 4 on the inner wall surface of the pipe curtain unit 1 and the retaining pressure plate 2;
and S9, pouring concrete inside the pipe curtain unit 1, so that the inner space in the pipe curtain structure is compact through the concrete, and a steel-concrete structure is formed.
The utility model provides a pipe curtain method tunnel supporting construction, include the pipe fitting that sets up along tunnel profile hoop interval and the coupling assembling that is used for connecting two adjacent pipe fittings, and connect through coupling assembling between the double-phase adjacent pipe curtain unit, realize the intercommunication of pipe curtain unit inner space, and be provided with anchor assembly in pipe curtain unit and coupling assembling, concreting, the concrete forms the bonding anchor with anchor assembly, strengthen the contact between concrete and the pipe curtain unit, and form steel-concrete structure, make the shell of pipe curtain unit can regard as long-term the support.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A tunnel supporting structure by a pipe curtain method comprises a plurality of pipe curtain units arranged along the circumferential direction of a tunnel at intervals and a plurality of connecting components used for connecting two adjacent pipe curtain units, and is characterized in that,
the both sides of managing the curtain unit are seted up respectively and are run through the mounting groove of interior outer wall, coupling assembling corresponds adjacent two the mounting groove of managing the curtain unit corresponds the connection, makes two adjacent the inner space intercommunication of managing the curtain unit, and
an inner space formed by the plurality of tube sheet units and the plurality of connection assemblies is filled with concrete; and is
And arranging an anchoring assembly on at least the inner peripheral wall surface of the pipe curtain unit so that the pipe curtain unit and the concrete form anchoring connection.
2. The tube sheet tunnel support structure of claim 1, wherein the connection assembly includes at least one connector;
the inner wall surface of the notch of the mounting groove is correspondingly connected with the connecting piece, and the end part of the connecting piece extends towards the interior of the pipe curtain unit.
3. The tube-curtain tunnel support structure of claim 2, wherein,
the mounting grooves are through grooves penetrating through two ends of the pipe curtain unit, and the connecting pieces are plate pieces and are two pieces which are arranged corresponding to the inner wall surfaces of the through grooves respectively;
the plate is arranged along the longitudinal extension of the pipe curtain unit, so that the inner space of the pipe curtain unit is isolated from the outside.
4. The tube curtain method tunnel supporting structure of claim 3, wherein end plates are provided at both ends of the plate member so that the plate member forms an anchoring bond with the concrete.
5. The tube-curtain tunnel supporting structure of claim 4, wherein a supporting structure is arranged between the two plates, and two ends of the supporting structure are respectively connected with the two plates correspondingly so as to reinforce the strength of the connecting component.
6. The tube curtain method tunnel supporting structure of claim 5, wherein the supporting structure is an I-shaped steel, and two wing plates on the I-shaped steel are respectively attached to the two plate pieces.
7. The tube-curtain-method tunnel supporting structure of claim 6, wherein the I-steel is a plurality of pieces arranged between the two plate members in a circumferential direction, and
at least two I-steel correspond adjacent two mounting groove notch setting respectively.
8. The tube sheet tunnel supporting structure of claim 6, wherein the I-steel is longitudinally extended or continuously arranged along the tube sheet unit;
and through holes are formed in the I-shaped steel web plate, so that the inner spaces of the pipe curtain units are communicated.
9. The tube sheet tunnel support structure of claim 6, wherein the anchor assembly includes anchors, the anchors being a plurality of which are provided at intervals on an inner side wall surface thereof in circumferential and longitudinal directions of the tube sheet unit,
and/or
The anchor is a plurality of that the correspondence sets up on the inside wall face of coupling assembling.
10. The tube curtain method tunnel supporting structure of claim 9, wherein the anchoring assembly comprises ribbed plates which are correspondingly arranged on a web plate of the I-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222997656.8U CN218759932U (en) | 2022-11-10 | 2022-11-10 | Tube curtain method tunnel supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222997656.8U CN218759932U (en) | 2022-11-10 | 2022-11-10 | Tube curtain method tunnel supporting construction |
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| Publication Number | Publication Date |
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| CN218759932U true CN218759932U (en) | 2023-03-28 |
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| CN202222997656.8U Active CN218759932U (en) | 2022-11-10 | 2022-11-10 | Tube curtain method tunnel supporting construction |
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| CN (1) | CN218759932U (en) |
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- 2022-11-10 CN CN202222997656.8U patent/CN218759932U/en active Active
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