CN208669320U - The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab - Google Patents
The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab Download PDFInfo
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- CN208669320U CN208669320U CN201821066851.6U CN201821066851U CN208669320U CN 208669320 U CN208669320 U CN 208669320U CN 201821066851 U CN201821066851 U CN 201821066851U CN 208669320 U CN208669320 U CN 208669320U
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Abstract
The utility model relates to a kind of anti-horizontal ovalizing deflection shield tunnel ruggedized constructions of pre-embedded steel slab, including section of jurisdiction, pre-embedded steel slab, junction steel plate, dowel, drag-line, connection channel steel, hydraulic jack, interim slip casting channel；Pre-embedded steel slab is arranged in section of jurisdiction intrados, junction steel plate is arranged between adjacent pre-embedded steel slab, junction steel plate both ends are connected and fixed with pre-embedded steel slab respectively；It equidistantly is vertically welded with dowel on the outside of pre-embedded steel slab, dowel one end is located on pre-embedded steel slab, and the dowel other end is fastened in the main reinforcement of section of jurisdiction；Pre-embedded connecting device is set on pre-embedded steel slab, and pre-embedded connecting device includes built-in screw hole, screw rod and outer connector, and built-in screw hole is set in section of jurisdiction through pre-embedded steel slab, and screw rod is equipped in built-in screw hole, and screw rod one end is equipped with outer connector.The beneficial effects of the utility model are: tunnel segment structure pre-reinforcement, carrying non-deformability is strong；Level, which is drawn, sets prestressed cable, and limitation section of jurisdiction is displaced outwardly；Top base forms small arch, enhances longitudinal anti-pressure ability.
Description
Technical field
The utility model belongs to shield duct piece reinforcement technique field, in particular to a kind of anti-horizontal ovalizing deflection shield of pre-embedded steel slab
Structure tunnel reinforcement structure, suitable for generating the shield duct piece structural strengthening of horizontal elliptic deformation vulnerable to longitudinal squeeze, especially
It is to the shallow-layer shield tunnel by a wide range of ground preloading or lateral influence of foundation excavation and to structural stability, safety
More demanding tunnel segment structure.
Background technique
Due to having many advantages, such as that environmentally protective, mechanization degree is high, climate condition does not limit for construction operation, use is prefabricated
The shield tunnel of section of jurisdiction on-site consolidation has become the important feature form of the civilian infrastructures such as current urban track traffic.But with
The further development of urbanization, Tunnel Boring pipeline soil layer surface and around carry out along many Process of Urbanization Construction,
Construction and the construction at station of other tunnel pipelines etc. can all cause structure sediment and deformation to influence on subway tunnel structure.Its
In, due to the large-scale preloading in ground or the influence of lateral deep pit digging, horizontal elliptic is generated so as to cause tunnel structure and is become
Shape destruction is one of them.The deformation that horizontal elliptic occurs for subway tunnel can cause section of jurisdiction crack, percolating water, or even pipe occur
Piece fracture, the Integral-structure types such as lining cutting peeling destroy, cause greatly to threaten to the operation security of subway tunnel, therefore how to add
Gu tunnel structure has received the extensive concern of engineering circles to resist tunnel and horizontal elliptic deformation occurs.
Existing shield tunnel reinforcement technique mainly includes interior steel ring method for strengthening, pastes composite cavity method for strengthening, aramid fiber
Cloth method for strengthening, carbon cloth reinforced method, lateral grouting and reinforcing method etc..Wherein, aramid fabric method for strengthening and carbon cloth reinforced method are made
The reinforcing and reparation of some small deformations are only applicable to for a kind of section of jurisdiction reinforcing means of auxiliary type, it is difficult to resist large deformation structure
It destroys.Lateral grouting and reinforcing method complex process, influence factor is more, and construction is uncertain larger.And interior steel ring method for strengthening and
Although pasting composite cavity method for strengthening using relatively more, constructing operation is complicated, and time-consuming, exists in practical projects all
It is mostly inconvenient.
In conclusion existing tunnel reinforcement technology is overall also in the exploratory stage, construction technology is not very mature, right
Preventing the horizontal elliptic deformation of shield tunnel, the effect is unsatisfactory.In addition, the prior art is often deposited in actual engineer application
It is limited in many conditions, constructing operation is complicated, reinforces the problems such as time-consuming, and consolidation effect is unstable, needs to pass through improvement
Technology is solved.
Utility model content
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of anti-horizontal ovalizing deflection shield of pre-embedded steel slab
Structure tunnel reinforcement structure.
To realize the above-mentioned technical purpose, the utility model uses following technical scheme: this pre-embedded steel slab is anti-horizontal oval
Deform shield tunnel ruggedized construction, including section of jurisdiction, pre-embedded steel slab, junction steel plate, dowel, drag-line, connection channel steel, hydraulic jack
Solidified earth is filled outside top, interim slip casting channel and wall；Pre-embedded steel slab is arranged in section of jurisdiction intrados, is arranged between adjacent pre-embedded steel slab and connects
Steel plate is connect, junction steel plate both ends are connected and fixed with pre-embedded steel slab respectively；Dowel, anchor are equidistantly vertically welded on the outside of pre-embedded steel slab
Muscle one end is located on pre-embedded steel slab, and the dowel other end is fastened in the main reinforcement of section of jurisdiction；Pre-buried connection dress is set on pre-embedded steel slab
It sets, pre-embedded connecting device includes built-in screw hole, screw rod and outer connector, and built-in screw hole is set in section of jurisdiction through pre-embedded steel slab, interior
It sets and is equipped with screw rod in screw hole, screw rod one end is equipped with outer connector, and outer connector is exposed at pre-embedded steel slab inner arcuate surface；Outer connector packet
The outer connector of bracket shape and the outer connector of ring tab shape are included, shield tunnel two sides waist is using the outer connector of ring tab shape, two sides pull ring
Between prestressed cable is set, the outer connector of shield tunnel crown and bottom arch position bracket shape arranged symmetrically, two contour oxen
Link slot steel is set up between the outer connector of leg to be supported, and hydraulic jack is set on the connection channel steel at top to top section of jurisdiction
It is jacked；The built-in screw hole that ring tab shape coupling abuts up and down is arranged to interim slip casting channel and fills wall outer void for slip casting
It is formed outside wall and fills solidified earth.
As preferred: the pre-embedded steel slab is close to section of jurisdiction intrados, and is distributed in each piece of section of jurisdiction centre, and and section of jurisdiction
Long side is parallel.
As preferred: the junction steel plate is fixed between adjacent two pieces of sections of jurisdiction, and both ends pass through spiral shell with pre-embedded steel slab respectively
It tethers and connects.
As preferred: the pre-embedded connecting device is distributed on pre-embedded steel slab central axes；Built-in screw hole is by hollow thread set
It constitutes；Screw rod is integral with outer connector.
As preferred: the drag-line both ends are connected on the outer connector of two ring tab shapes of shield tunnel horizontal diameter
And tensioning is formed to the section of jurisdiction of its two sides and is fixed.
As preferred: the connection U-steel frame is located to be connected outside the bracket shape of zero moment of flexure position of tunnel top and bottom
On head.
The beneficial effects of the utility model are:
1) tunnel segment structure pre-reinforcement, carrying non-deformability are strong
Steel plate is fixed on section of jurisdiction intrados in advance, and the common stress of the two, the rigidity of structure improves, while overlapped between section of jurisdiction
Junction steel plate strengthens the bonding strength of seam, reduces the changing of the relative positions and deformation between section of jurisdiction.Pre-embedded steel slab, junction steel plate, dowel and
Tunnel segment structure is interconnected and fixed, and forms an entirety, can effectively improve the circumferential bearing capacity of tunnel structure, is resisted horizontal oval
Formula deformation.
2) horizontal draw sets prestressed cable, and limitation section of jurisdiction is displaced outwardly
Tunnel connector outside horizontal diameter two sides setting ring tab shape, the outer connector one end of ring tab shape and intrados are pre-buried
Steel plate is connected with each other, and one end is exposed at section of jurisdiction inner surface, can connect prestressed cable between the pull ring of two sides, passes through the mutual of transverse direction
The outside deformation in the horizontal two sides that tractive force generates to resist tunnel because of longitudinal load.
3) top base forms small arch, enhances longitudinal anti-pressure ability
Be symmetrical arranged the outer connector of bracket shape at 1 moment of flexure point of tunnel top and bottom, the outer connector one end of bracket shape with it is interior
Cambered surface pre-embedded steel slab is connected with each other, and one end is exposed at section of jurisdiction inner surface, sets up connection between the outer connector of contour yoke of oxen leg
Channel steel forms hard support.Top, the pre-embedded steel slab of bottom and connection channel steel are connected and fixed to form a small arch, strengthen and resist
The ability of longitudinal compression deformation.In addition deployment scenarios that can according to actual needs with tunnel gut line, as one sees fit on connection channel steel
Set up 1-2 hydraulic jack.
4) operation is convenient, speed of application is fast
The reserved built-in screw hole of section of jurisdiction inner surface, strong flexibility precession can install outer connector of different shapes as needed,
For the tensioning of drag-line or the cross-brace of connection channel steel.Without re-starting positioning again when tunnel structure is reinforced
With get into the cave, constructing operation step is simple, and speed of application is fast, can cope with the unexpected deformation of tunnel structure in a short time, practicability
By force.
5) good in economic efficiency
Steel plate and attachment device as used in this ruggedized construction are pre-buried in advance in the casting process of section of jurisdiction, in tunnel
Without being additionally carried out fixation of getting into the cave when reinforcing, artificial destruction will not be caused to tunnel segment structure.Meanwhile the behaviour that constructs in reinforcing process
Make simply, to enter constructing tunnel without heavy mechanical equipment, speed of application is fast, the duration is greatly reduced, to reduce construction
Cost.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is pre-embedded connecting device thin portion structural schematic diagram；
Fig. 3 is adjacent section of jurisdiction pre-embedded steel slab attachment structure schematic diagram.
Description of symbols: section of jurisdiction 1；Pre-embedded steel slab 2；Junction steel plate 3；Dowel 4；Built-in screw hole 5；Screw rod 6；Outside bracket shape
Connector 7；The outer connector 8 of ring tab shape；Prestressed cable 9；Connect channel steel 10；Hydraulic jack 11；Interim slip casting channel 12；Wall
Solidified earth 13 is filled outside.
Specific embodiment
The utility model is described further below with reference to embodiment.The explanation of following embodiments is only intended to help to manage
Solve the utility model.It should be pointed out that for those skilled in the art, not departing from the utility model principle
Under the premise of, several improvements and modifications can be made to this utility model, these improvement and modification also fall into the utility model
In scope of protection of the claims.
The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of the pre-embedded steel slab, comprising: section of jurisdiction 1, pre-embedded steel slab 2, connection
The outer connector 7 of steel plate 3, dowel 4, built-in screw hole 5, screw rod 6, bracket shape, the outer connector 8 of ring tab shape, prestressed cable 9, connection
Channel steel 10, hydraulic jack 11, interim slip casting channel 12, wall fill solidified earth 13 outside.
As shown in Figure 1, pre-embedded steel slab 2 is close to 1 intrados of section of jurisdiction, one group of anchor is arranged every 20cm in 2 outside of pre-embedded steel slab
Muscle 4,4 other end of dowel and 1 main reinforcement of section of jurisdiction are welded, so that pre-embedded steel slab 2 is sufficiently close to be fixed on 1 intrados of section of jurisdiction, are formed
One stress entirety；A built-in screw hole 5 is laid every 20cm on 2 central axes of pre-embedded steel slab；Tunnel horizontal diameter both ends are each
Take hithermost one built-in screw hole 5 to carry out the fixation of ring tab shape outer connector 8 and screw rod 6, and outside ring tab shape connector 8 it
Between draw set prestressed cable 9；Connector 7 outside bracket shape, the company of being used to support are installed in two sides at zero moment of flexure of tunnel top and bottom
Access slot steel 10 forms two small domes at the top and bottom of tunnel structure, conducive to the longitudinal load-bearing ability for improving tunnel；
1-2 hydraulic jack 11 can be laid according to the distribution situation of tunnel internal pipeline on the connection channel steel 10 at crown position, it is right
Section of jurisdiction 1 is jacked；Two built-in screw holes 5 that about 8 ring tab shape coupling is abutted repacking of getting into the cave forms interim slip casting channel
12, it is formed outside wall for slip casting filling wall outer void and fills solidified earth 13, prevent the rebound outward again of section of jurisdiction 1.
As shown in Fig. 2, pre-embedded connecting device is arranged on pre-embedded steel slab 2, pre-embedded connecting device by built-in screw hole 5, screw rod 6,
The outer connector 7 of bracket shape or the outer connector 8 of ring tab shape collectively form.Wherein built-in screw hole 5 is 20mm, length by an interior diameter
For 100mm hollow thread cover constitute, before section of jurisdiction 1 pours it is pre-buried wherein；Screw rod 6 and outer connector are the integrated design, outside
Connector is divided into the outer connector 7 of bracket shape and the outer connector 8 of ring tab shape.Outer connector can be fixed on section of jurisdiction by screw thread rotation
At 1 corresponding built-in screw hole 5, and Fast Installation and disassembly can be carried out at any time.
As shown in figure 3, being close to 1 intrados of section of jurisdiction is provided with pre-embedded steel slab 2, two pieces of adjacent pre-embedded steel slabs 2 pass through company
It connects steel plate 3 to carry out being bolted fixation, strengthens the bonding strength of segment joint, reduce the changing of the relative positions and deformation between section of jurisdiction 1.
The wide 600mm of the material selection of pre-embedded steel slab 2, the curved plate of thick 20mm.The material selection of junction steel plate 3 is wide
200mm, thick 20mm curved plate.The reinforcing bar of 4 material of dowel selection diameter 8mm.Connect 10 material selection model 20a's of channel steel
Channel steel.
The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of the pre-embedded steel slab, comprising the following steps:
1) production and processing of pre-embedded steel slab 2: radian and length according to 1 intrados of section of jurisdiction cut steel plate, benefit
The central axes for drawing steel plain perpendicular to short side with marking pen utilize drill hole of drilling machine every 20cm along central axes, and successively
The hollow thread set that interior diameter is 20mm is filled in and is fixed in hole, it is flat that hollow thread covers one end and 2 surface of pre-embedded steel slab
Together, the vertical exposing surface of the other end.Bending machining carried out to pre-embedded steel slab 2 using bending machinery later, hollow thread set with it is pre-
The one side for burying 2 flush of steel plate is intrados, and the other side bends to extrados.After pre-embedded steel slab 2 makes completion of processing,
It fills in cloth in hollow thread set to be blocked, blend compounds band closes both ends hole.
2) welding of bar construction: reinforced frame has been overlapped according to the size of section of jurisdiction 1, and the pre-embedded steel slab 2 after processing is tight
Reinforced frame intrados arrangement is pasted, welds the dowel 4 that one group of diameter is 8mm, dowel 4 every 20cm in 2 outside of pre-embedded steel slab later
Other end is welded and fixed with 1 main reinforcement of section of jurisdiction, and pre-embedded steel slab 2 is sufficiently secured on reinforced frame.
3) section of jurisdiction 1 pouring and conserving: using section of jurisdiction 1 mold fixed steel bars skeleton, later pouring into section of jurisdiction concrete in mold
Portion is integrally vibrated molding using the pneumatic vibrator of adhesion type.Pour after concrete section of jurisdiction 1 using without steam-cured about 6~8 hours of pressure (containing heating,
Temperature fall time) collapsible die afterwards.It is demoulded after demoulding using special hanger (vacuum chuck), then is transported to spray drop after turning machine is overturn
Warm area carries out spraying cooling, when the section of jurisdiction temperature difference and the pond temperature difference are not more than 20 DEG C, transport to curing pool and is supported by code requirement
Shield.Section of jurisdiction maintenance, which finishes to go to, stacks field stacking, and the use of shield-tunneling construction scene is transported after 28 day age to be achieved.
4) it is welded to connect steel plate 3: after the completion of the splicing of 1 main body of section of jurisdiction, by the coagulation near adjacent 1 intrados seam of section of jurisdiction
Tu Bi cuts sub-fraction, exposes pre-embedded steel slab 2, after carrying out simple clean the surface, connection channel steel 3 is fixed on embedded
On pre-embedded steel slab 2, surface is concordant with 1 intrados of section of jurisdiction, is later carried out at 3 both ends of junction steel plate with pre-embedded steel slab 2 using bolt
It is connected and fixed, utilizes epoxy fill gap later.
5) strengthening construction in tunnel structure:, can when such as encountering tunnel structure and being reinforced after tunnel is open to traffic
Rapid reinforcement is carried out using the equal components of the pre-embedded steel slab 2 being embedded in inside section of jurisdiction 1.Firstly, selection is near horizontal diameter
The built-in screw hole 5 of one of both ends takes out the adhesive tape of sealing and the internal cloth filled in, and simple to carrying out inside built-in screw hole 5
Single cleaning, it is ensured that connector 8 outside ring tab shape is passed through built in 6 precession of screw rod in screw hole 5 after internal no-sundries, is carried out temporarily solid
It is fixed.Then the two built-in screw holes 5 up and down abutted are selected to carry out repacking of getting into the cave at connector 8 outside ring tab shape, built in script
It is drilled on the basis of screw hole 5, forms interim slip casting channel 12.It is selected around contour to encircle 1 moment of flexure point in inverted arch and bottom later
Two at built in screw hole 5, connector 7 outside bracket shape is tightened in the same way.Two encircleed later in inverted arch and bottom
It sets up link slot steel 10 on the outer connector 7 of contour bracket shape to be supported firmly, the connector 8 outside the ring tab shape at horizontal diameter both ends
Between draw set prestressed cable 9 carry out tensioning fix.It, can be at crown if necessary and in the case where overhead line distribution permission
Connection channel steel 10 at the top of 11 pairs of 1-2 hydraulic jack of arrangement section of jurisdiction 1 jack.Horizontal tensioning is being carried out to section of jurisdiction 1
After vertical jacking, need near horizontal diameter both ends section of jurisdiction 1 and seam carry out grouting and reinforcing, prevent section of jurisdiction 1 from occurring instead
Bullet.
6) disassembly & recycling of ruggedized construction: after stablizing to tunnel structure, removal level draws the prestressed cable set first
9, hydraulic jack 11, connection channel steel 10, the components such as the outer connector 7 of bracket shape and the outer connector 8 of ring tab shape are successively removed later
It carries out timely arranging recycling.Meanwhile filling in cloth and closed orifices again at used built-in screw hole 5, prevent foreign matter
Into blocking duct, facilitate next tunnel is fixed to use.After all material and personnel are withdrawn, it can restore to be open to traffic.
Claims (6)
1. a kind of anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab, it is characterised in that: including section of jurisdiction (1), pre-buried steel
Plate (2), junction steel plate (3), dowel (4), drag-line (9), connection channel steel (10), hydraulic jack (11), interim slip casting channel
(12) and outside wall solidified earth (13) are filled；Pre-embedded steel slab (2) are arranged in section of jurisdiction (1) intrados, are arranged between adjacent pre-embedded steel slab (2)
Junction steel plate (3), junction steel plate (3) both ends are connected and fixed with pre-embedded steel slab (2) respectively；It is equidistant on the outside of pre-embedded steel slab (2) to hang down
It is directly welded with dowel (4), dowel (4) one end is located on pre-embedded steel slab (2), and the other end is fastened in section of jurisdiction (1) main reinforcement；In advance
It buries and pre-embedded connecting device is set on steel plate (2), pre-embedded connecting device includes built-in screw hole (5), screw rod (6) and outer connector, interior
It sets screw hole (5) to be set in section of jurisdiction (1) through pre-embedded steel slab (2), is equipped with screw rod (6) in built-in screw hole (5), screw rod (6) one end is set
There is outer connector, outer connector is exposed at pre-embedded steel slab (2) inner arcuate surface；Outer connector includes the outer connector (7) of bracket shape and draws
Cyclic annular outer connector (8), shield tunnel two sides waist are arranged the outer connector (8) of ring tab shape, prestressing force are arranged between the pull ring of two sides
Drag-line (9), the outer connector (7) of shield tunnel crown and bottom arch position bracket shape arranged symmetrically, two contour bracket shapes connect outside
Link slot steel (10) are set up between connector (7) to be supported, and it is right that hydraulic jack (11) are set on the connection channel steel (10) at top
Top section of jurisdiction (1) is jacked；The built-in screw hole (5) that the outer connector (8) of ring tab shape abuts up and down is arranged to interim slip casting channel
(12) it is formed outside wall for slip casting filling wall outer void and fills solidified earth (13).
2. the anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab according to claim 1, it is characterised in that: described
Pre-embedded steel slab (2) is close to section of jurisdiction (1) intrados, and is distributed in each piece of section of jurisdiction (1) centre, and equal with section of jurisdiction (1) long side
Row.
3. the anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab according to claim 1, it is characterised in that: described
Junction steel plate (3) is fixed between adjacent two pieces of sections of jurisdiction (1), and both ends are bolted with pre-embedded steel slab (2) respectively.
4. the anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab according to claim 1, it is characterised in that: described
Pre-embedded connecting device is distributed on pre-embedded steel slab (2) central axes；Built-in screw hole (5) is made of hollow thread set；Screw rod (6) and outer
Connector is integral.
5. the anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab according to claim 1, it is characterised in that: described
Drag-line (9) both ends are connected on the outer connector (8) of two ring tab shapes of shield tunnel horizontal diameter and to the pipe of its two sides
Piece (1) forms tensioning and fixes.
6. the anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab according to claim 1, it is characterised in that: described
Connection channel steel (10) is erected on the outer connector (7) of bracket shape of zero moment of flexure position of tunnel top and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066851.6U CN208669320U (en) | 2018-07-06 | 2018-07-06 | The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066851.6U CN208669320U (en) | 2018-07-06 | 2018-07-06 | The anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab |
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| Publication Number | Publication Date |
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| CN208669320U true CN208669320U (en) | 2019-03-29 |
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ID=65826302
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678775A (en) * | 2018-07-06 | 2018-10-19 | 浙江大学城市学院 | A kind of anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab and construction method |
| CN113374502A (en) * | 2021-07-29 | 2021-09-10 | 中铁隧道集团一处有限公司 | Construction method for reinforcing cavity by splicing lining grouting based on mine method tunnel construction |
| CN115306430A (en) * | 2022-09-02 | 2022-11-08 | 南通铁建建设构件有限公司 | Embedded pre-buried stress structure for shield tunnel installation |
| CN116792149A (en) * | 2023-08-16 | 2023-09-22 | 湖南大学 | Method and system for recovering deformation of shield tunnel structure |
-
2018
- 2018-07-06 CN CN201821066851.6U patent/CN208669320U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678775A (en) * | 2018-07-06 | 2018-10-19 | 浙江大学城市学院 | A kind of anti-horizontal ovalizing deflection shield tunnel ruggedized construction of pre-embedded steel slab and construction method |
| CN108678775B (en) * | 2018-07-06 | 2024-01-26 | 浙江大学城市学院 | Transverse oval deformation resistant shield tunnel reinforcing structure of embedded steel plate and construction method |
| CN113374502A (en) * | 2021-07-29 | 2021-09-10 | 中铁隧道集团一处有限公司 | Construction method for reinforcing cavity by splicing lining grouting based on mine method tunnel construction |
| CN115306430A (en) * | 2022-09-02 | 2022-11-08 | 南通铁建建设构件有限公司 | Embedded pre-buried stress structure for shield tunnel installation |
| CN115306430B (en) * | 2022-09-02 | 2023-10-31 | 南通铁建建设构件有限公司 | Embedded embedded stress structure for shield tunnel installation |
| CN116792149A (en) * | 2023-08-16 | 2023-09-22 | 湖南大学 | Method and system for recovering deformation of shield tunnel structure |
| CN116792149B (en) * | 2023-08-16 | 2024-05-14 | 湖南大学 | Method and system for recovering deformation of shield tunnel structure |
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