CN109653774A - Shield method service channel originates portal steel bushing adapting structure for electric and its installation method - Google Patents
Shield method service channel originates portal steel bushing adapting structure for electric and its installation method Download PDFInfo
- Publication number
- CN109653774A CN109653774A CN201910049243.7A CN201910049243A CN109653774A CN 109653774 A CN109653774 A CN 109653774A CN 201910049243 A CN201910049243 A CN 201910049243A CN 109653774 A CN109653774 A CN 109653774A
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- lifting
- steel bushing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000009434 installation Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 17
- 238000004513 sizing Methods 0.000 claims description 66
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 240000009087 Crescentia cujete Species 0.000 claims 1
- 235000005983 Crescentia cujete Nutrition 0.000 claims 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims 1
- 235000014676 Phragmites communis Nutrition 0.000 claims 1
- 230000008014 freezing Effects 0.000 description 6
- 238000007710 freezing Methods 0.000 description 6
- 238000011900 installation process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Abstract
The invention discloses a kind of shield method service channels to originate portal steel bushing adapting structure for electric and its installation method, it is characterized in that: being applied in shield method service channel to originate the steel bushing split settings in portal construction is that sleeve body and the circle positioned at sleeve body front end accept cylinder, the front port welding for accepting cylinder is mounted at hole, it accepts and is set as flange arrangement between the tail portion port of cylinder and the front port of sleeve body, be attached in flange arrangement using bolt.The present invention can effectively improve steel bushing service channel and originate installation success rate at the hole of portal, avoid steel bushing thermal deformation, guarantee construction quality, improve project progress.
Description
Technical field
The present invention relates to shield method tunnel construction technical fields, more specifically apply in shield method Freezing Method for Cross-passage Construction
In originate steel bushing adapting structure for electric and its installation method at portal.
Background technique
Shield method Freezing Method for Cross-passage Construction technology is the new process in Freezing Method for Cross-passage Construction field, is by shield method tunnel construction skill
Art is applied to Freezing Method for Cross-passage Construction, guarantees safety, the high efficiency of Freezing Method for Cross-passage Construction.
Service channel is arranged between uplink and downlink tunnel line, and uplink and downlink tunnel line is enable to penetrate through, and is tunnel safety operation
Important leverage, in shield method Freezing Method for Cross-passage Construction, shield machine is originated in the side in uplink and downlink tunnel, and driving is to the other side
Tunnel receives.To guarantee the portal waterproof effect in shield launching construction, use steel bushing as originating water-tight device, with
Guarantee construction safety.
As shown in Figure 4 and Figure 5, be formed as "T"-shaped interface between main track tunnel 7 and service channel 8, for conventional φ
The Shield-bored tunnels of 5500mm internal diameter lining cutting, shield method service channel open pore size be φ 3400mm, therefore, steel bushing 1 with
It is to be intersected by major diameter Shield-bored tunnels with minor diameter service channel aperture that service channel, which originates the birdsmouth between portal 4,
It is formed by double-curved shapes；In the extremely limited space of tunnel main line, it is directed to large volume and heavy weight steel bushing, no
By being all to be difficult to ensure the birdsmouth of double-curved shapes at portal using lifting welding or the mounting means of supporting welding
Good contraposition, installation success rate is low, meanwhile, because welding fever leads to device, there are risk of distortion, this situations in installation process
It greatly affected project progress.
Summary of the invention
The present invention is to provide a kind of shield method service channel to avoid above-mentioned existing deficiencies in the technology and originate
Portal steel bushing adapting structure for electric and its installation method, to improve installation of the steel bushing at the hole that service channel originates portal
Success rate avoids steel bushing thermal deformation, to guarantee construction quality, improves project progress.
The present invention adopts the following technical scheme that in order to solve the technical problem
Shield method service channel of the present invention, which originates the characteristics of portal steel bushing adapting structure for electric, is: being applied in shield method contact
It is that sleeve body and the circle positioned at sleeve body front end accept cylinder that channel, which originates the steel bushing split settings in portal construction,
The front port welding for accepting cylinder is mounted at hole, is accepted and is set between the tail portion port of cylinder and the front port of sleeve body
It is set to flange arrangement, is attached in the flange arrangement using bolt.
Shield method service channel of the present invention originates the characteristics of portal steel bushing adapting structure for electric and lies also in: in the cylinder of accepting
Mating setting sizing steel support, is supportted using the sizing steel being mounted on the tail portion port for accepting cylinder to the undertaking on the port of tail portion
Cylinder carries out shaping；It is set as flange arrangement between the tail portion port for accepting cylinder and sizing steel support, in the flange arrangement
It is middle to be attached using bolt.
Shield method service channel of the present invention originates the characteristics of portal steel bushing adapting structure for electric and lies also in: the sizing steel support is
" H " fashioned iron is arranged in flange circle to support.
Shield method service channel of the present invention originates the characteristics of portal steel bushing adapting structure for electric and lies also in: the undertaking cylinder is on edge
Length in the axial direction of steel bushing is set as 10-30cm.
Shield method service channel of the present invention, which originates the characteristics of portal steel bushing installation method, is:
The steel bushing split settings that shield method service channel originates in portal construction are applied in be sleeve body and be located at
One circle of sleeve body front end accepts cylinder, and the front port welding for accepting cylinder is mounted at hole, accepts the tail portion port of cylinder
It is set as flange arrangement between the front port of sleeve body, is attached in the flange arrangement using bolt；Described
Mating setting sizing steel support on the tail portion port of cylinder is accepted, the sizing steel support pair being mounted on the tail portion port for accepting cylinder is utilized
The undertaking cylinder carries out shaping；It is set as flange arrangement between the tail portion port for accepting cylinder and sizing steel support, described
It is attached in flange arrangement using bolt；
The installation method is to carry out according to the following procedure:
Step 1, removing flanged joint keeps sleeve body seperated with cylinder is accepted, and sizing steel support is fixed by flanged joint
It is mounted on the tail portion port for accepting cylinder, is carried out shaping by the support of sizing steel to cylinder is accepted；
Step 2, the undertaking cylinder that will obtain sizing steel support sizing are lifted to service channel and are originated at the openings position of portal, and
The front port for accepting cylinder welding is mounted on service channel to originate on the hole of portal, fixes undertaking cylinder on hole；
Step 3 removes sizing steel support in the tail portion port for accepting cylinder, and utilizes flange arrangement replacement connection sleeve body,
Make to accept cylinder and composition steel bushing is bolted in sleeve body, and completes the installation of steel bushing.
Shield method service channel of the present invention originates the characteristics of portal steel bushing installation method and lies also in: will accept in step 2
It is to carry out according to the following procedure that cylinder lifting originates at the openings position of portal to service channel:
Step 2.1 selectes four lifting points before portal, wherein two insides lifting point is in tunnel where hole
In the tunnel-side of side, and it is symmetrically distributed in the both sides at hole；Two outside lifting point be in it is opposite with hole in tunnel
In the tunnel-side of side, the head-down position of four lifting points is four vertex positions of rectangle；It is arranged on each lifting point
Hoist, is mounted in the inside tackles on the inside of two on lifting point respectively and is mounted on the lifting point of two outsides
Outside tackles；Week equally distributed four lifting lugs are held round in the upper edge sizing steel of sizing steel support；
Step 2.2, four tackles support a pair between upper four lifting lugs in portal first four lifting point and sizing steel
It should be attached, the undertaking cylinder lifting in sizing steel support will be fixedly connected in level, sling height using four tackles
Not less than the height of hole top edge；The bottom accepted cylinder and be located at sizing steel support being in a horizontal state；
Step 2.3 keeps the lifting degree of two inside tackles high, the lifting of two outside tackles of synchronous release
Highly, overturning the support of sizing steel together with undertaking cylinder is state in a vertical shape, and undertaking cylinder is in the hole that service channel originates portal
At position.
Shield method service channel of the present invention originates the characteristics of portal steel bushing installation method and lies also in: in the step 3
The tail portion port for accepting cylinder, which is removed, is formed after steel support, keeps the lifting degree of two inside tackles high, tightens two outsides
Hoist supports the sizing steel of vertical state in level, and then four tackles of synchronous release, the steel support that will be formed is in
It lies in a horizontal plane in tunnel transport vehicle, and is transported to outside tunnel with tunnel transport vehicle.
Shield method service channel of the present invention originates the characteristics of portal steel bushing installation method and lies also in: rising two insides of setting
Horizontal distance of the suspension centre away from portal is no more than horizontal distance of the lifting lug apart from portal on corresponding position in sizing steel support.
Compared with the prior art, the invention has the advantages that:
1, steel bushing split settings are that sleeve body and a circle accept cylinder by the present invention, will be accepted cylinder and are led to prior to sleeve body
It crosses welding to be mounted at portal, then sleeve body is mounted on using flange arrangement using bolt to the tail portion for accepting cylinder；Due to holding
Connect cylinder is light-weight and small in size, sufficiently accurately can be quickly welded in portal；On the one hand the setting for accepting cylinder is sleeve
Ontology allows bit space being axially formed, and greatly facilitates the installation operation of steel bushing ontology, on the other hand accepts setting for cylinder
It sets so that sleeve body is able to be installed using bolt using flange arrangement, greatly improves installation speed, ensures installation
Quality, while effectively preventing the risk for causing device to deform because of welding heat.
2, the present invention is held to accept the mating setting sizing steel support of cylinder with effectively preventing steel member in the support of the sizing steel of rigidity
Connect cylinder does not deform in transport and installation process, and is lifted by crane during the installation process to undertaking cylinder using the support of sizing steel
It is adjusted with position, undertaking cylinder is enable to carry out fast and accurately contraposition installation at hole.
3, the present invention is very ingenious for the lifting and alignment mode of accepting cylinder, and lifting is smooth, and contraposition is accurate, effectively keeps away
Exempt from undertaking cylinder to damage in tunnel because of collision.
Detailed description of the invention
Fig. 1 is located at service channel for steel bushing in the present invention and originates the scheme of installation at portal；
Fig. 2 and Fig. 2 a is respectively that cylinder main view and side structure schematic view are accepted in the present invention；
Fig. 3 and Fig. 3 a is respectively that cylinder main view and side structure schematic view are accepted in the present invention；
"T"-shaped interface diagram of the Fig. 4 between service channel and main track tunnel；
Fig. 5 is steel bushing structural schematic diagram；
Fig. 6, Fig. 7 and Fig. 8 are to accept cylinder in the present invention to lift by crane installation process schematic diagram；
Fig. 9 is the head-down position schematic diagram of four lifting points in the present invention.
Figure label: 1 steel bushing, 2 accept cylinder, and 2a sleeve body, 3 sizing steel supports, 3a flange circle, 3b is " H " fashioned iron
Support, 4 service channels originate portal, lifting point on the inside of 5a, lifting point on the outside of 5b, 6 tunnel transport vehicles, 7 main track tunnels, and 8 contacts are logical
Road.
Specific embodiment
Referring to fig. 4 and Fig. 5, be formed as "T"-shaped interface between main track tunnel 7 and service channel 8 in the present embodiment, for φ
The Shield-bored tunnels of 5500mm internal diameter lining cutting, shield method service channel open pore size be φ 3400mm, therefore, steel bushing 1 with
It is to intersect institute with minor diameter service channel aperture by major diameter Shield-bored tunnels that service channel, which originates the birdsmouth between portal 4,
The double-curved shapes of formation.
Referring to Fig. 1, Fig. 2 and Fig. 2 a, in the present embodiment, shield method service channel, which originates portal steel bushing adapting structure for electric, is: will
1 split settings of steel bushing originated in portal construction in shield method service channel are applied to be sleeve body 2a and be located at sleeve sheet
One circle of the front end body 2a accepts cylinder 2, and the front port welding for accepting cylinder 2 is mounted at hole, accepts tail portion port and the set of cylinder 2
It is set as flange arrangement between the front port of cylinder ontology 2a, is attached in flange arrangement using bolt.
Referring to Fig. 3 and Fig. 3 a, in specific implementation, mating setting sizing steel support 3, utilization on the tail portion port for accepting cylinder 2
The sizing steel being mounted on the tail portion port for accepting cylinder 2 supports 3 pairs of undertaking cylinders and carries out shaping；In the tail portion port for accepting cylinder 2 and determine
It is set as flange arrangement between fashioned iron support 3, is attached in flange arrangement using bolt；Steel support 3 of being formed is in flange circle 3a
Middle setting " H " fashioned iron supports 3b；It accepts cylinder and is set as 10-30cm in the length in steel bushing axial direction.
Shield method service channel, which originates portal steel bushing installation method, in the present embodiment is:
Being applied in 1 split settings of steel bushing that shield method service channel originates in portal construction is sleeve body 2a and position
A circle in the front end sleeve body 2a accepts cylinder 2, and the front port welding for accepting cylinder 2 is mounted at hole, accepts the tail portion of cylinder 2
It is set as flange arrangement between port and the front port of sleeve body 2a, is attached in flange arrangement using bolt；It is holding
Mating setting sizing steel support 3, utilizes the sizing steel support 3 being mounted on the tail portion port for accepting cylinder 2 on the tail portion port of connect cylinder 2
It is carried out shaping to cylinder 2 is accepted；It is set as flange arrangement between the tail portion port for accepting cylinder 2 and sizing steel support 3, in flange knot
It is attached in structure using bolt；
Referring to Fig. 1, Fig. 6, Fig. 7 and Fig. 8, installation process is to carry out as follows:
Step 1, dismounting flanged joint keep sleeve body 2a seperated with cylinder 2 is accepted, and sizing steel support 3 is passed through flanged joint
It is fixedly mounted on the tail portion port for accepting cylinder 2,3 pairs of undertaking cylinders is supportted by sizing steel and are carried out shaping.
The undertaking cylinder 2 for obtaining 3 sizing of sizing steel support is lifted to service channel the openings position for originating portal 4 by step 2
Place, and the front port welding for accepting cylinder 2 is mounted on service channel and is originated on the hole of portal, obtain undertaking cylinder on hole
With fixation.
Step 3 removes sizing steel support 3 in the tail portion port for accepting cylinder 2, and utilizes flange arrangement replacement connection sleeve body
2a makes to accept cylinder 2 and sleeve body 2a is bolted and constitutes steel bushing 1, and completes the installation of steel bushing 1.
As shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, undertaking cylinder is lifted to service channel to the hole position for originating portal in step 2
The place of setting is to carry out according to the following procedure:
Step 2.1 selectes four lifting points before portal, wherein two inside lifting point 5a are to be in hole institute in tunnel
In the tunnel-side of side, and it is symmetrically distributed in the both sides at hole；Two outside lifting point 5b are to be in tunnel and hole
In the tunnel-side of opposite side, the head-down position of four lifting points is four vertex positions (as shown in Figure 9) of rectangle；?
Tackles are set on each lifting point, be mounted in respectively two inside lifting point on inside tackles and be mounted on two
The only outside tackles on the lifting point of outside；Week equally distributed four lifting lugs are held round along sizing steel in sizing steel support 3；
Two inside horizontal distances of the lifting point away from portal are set no more than lifting lug distance on corresponding position in sizing steel support
The horizontal distance of portal, if two inside horizontal distances of the lifting point away from portal of setting are equal to corresponding position in sizing steel support
Horizontal distance of the upper lifting lug apart from portal, then can make to be in service channel in the front port of vertical undertaking cylinder and originate hole
On the hole of door, welding installation is carried out with sharp accurate contraposition；Two insides lifting point is avoided to be greater than away from the horizontal distance of portal
Otherwise horizontal distance of the lifting lug apart from portal on corresponding position of being formed in steel support joins in the front port of vertical undertaking cylinder is separate
Network channel originates the hole of portal, is unfavorable for accurate contraposition welding installation.
Step 2.2, four tackles support a pair between upper four lifting lugs in portal first four lifting point and sizing steel
It should be attached, the lifting of undertaking cylinder 2 in sizing steel support 3 will be fixedly connected in level using four tackles, lifting is high
Degree is not less than the height of hole top edge；The bottom accepted cylinder 2 and be located at sizing steel support 3 being in a horizontal state；
Step 2.3 keeps the lifting degree of two inside tackles high, the lifting of two outside tackles of synchronous release
Highly, overturning the support of sizing steel together with undertaking cylinder is state in a vertical shape, and undertaking cylinder 2 is in the hole that service channel originates portal
At mouth position.
After removing sizing steel support 3 in specific implementation, in step 3 on the tail portion port for accepting cylinder 2, two insides are kept
The lifting degree of tackles is high, tightens two outside tackles, so that the sizing steel of vertical state is supportted 3 then is in level, then
Sizing steel support 3 after disassembly is in lie in a horizontal plane in tunnel transport vehicle 6, and transport with tunnel by four tackles of synchronous release
Defeated vehicle 6 is transported to outside tunnel.
City underground shield tunnel in China's is routinely the internal diameter lining cutting of φ 5500mm at present, outside shield method service channel aperture
Diameter is φ 3400mm, therefore the front end face of steel bushing is opened in the internal diameter lining cutting of φ 5500mm and the service channel of φ 3400mm
Surface of intersection between the outer diameter of hole is bi-curved geometrical curve；Based on this, the front port that cylinder is accepted in the present invention has
Corresponding double-curved shapes, the tail portion port for accepting cylinder can be set to same double-curved shapes, may be set to be flat
Face, the front port of sleeve body and sizing steel support are set as the shape matched with the tail portion port for the undertaking cylinder being connected.
Claims (8)
1. a kind of shield method service channel originates portal steel bushing adapting structure for electric, it is characterized in that: it is logical to be applied in shield method contact
Road originates steel bushing (1) split settings in portal construction and is sleeve body (2a) and is located at a circle of the front end sleeve body (2a)
It accepts cylinder (2), the front port welding for accepting cylinder (2) is mounted at hole, accepts tail portion port and the sleeve body of cylinder (2)
It is set as flange arrangement between the front port of (2a), is attached in the flange arrangement using bolt.
2. shield method service channel according to claim 1 originates portal steel bushing adapting structure for electric, it is characterized in that: described
Mating setting sizing steel support (3) on the tail portion port of cylinder (2) is accepted, is determined using being mounted on the tail portion port for accepting cylinder (2)
Fashioned iron support (3) carries out shaping the undertaking cylinder (2)；It is set between the tail portion port for accepting cylinder (2) and sizing steel support (3)
It is set to flange arrangement, is attached in the flange arrangement using bolt.
3. shield method service channel according to claim 2 originates portal steel bushing adapting structure for electric, it is characterized in that: described fixed
Fashioned iron support (3) is that setting " H " fashioned iron supports (3b) in flange circle (3a).
4. shield method service channel according to claim 1 originates portal steel bushing adapting structure for electric, it is characterized in that: described hold
Length of the connect cylinder (2) in the axial direction along steel bushing (1) is set as 10-30cm.
5. a kind of shield method service channel originates portal steel bushing installation method, it is characterized in that:
Being applied in steel bushing (1) split settings that shield method service channel originates in portal construction is sleeve body (2a) and position
A circle in the front end sleeve body (2a) accepts cylinder (2), and the front port welding for accepting cylinder (2) is mounted at hole, accepts
It is set as flange arrangement between the tail portion port of cylinder (2) and the front port of sleeve body (2a), is utilized in the flange arrangement
Bolt is attached；Mating setting sizing steel supports (3) on the tail portion port for accepting cylinder (2), using being mounted on undertaking cylinder
(2) the sizing steel support (3) on tail portion port carries out shaping the undertaking cylinder (2)；In the tail portion port for accepting cylinder (2)
It is set as flange arrangement between sizing steel support (3), is attached in the flange arrangement using bolt；
The installation method is to carry out according to the following procedure:
Step 1, remove flanged joint make sleeve body (2a) with accept cylinder (2) be it is seperated, will sizing steel support (3) pass through flange company
It connects on the tail portion port for being fixedly mounted on and accepting cylinder (2), is carried out shaping by sizing steel support (3) to cylinder (2) are accepted；
The undertaking cylinder (2) for obtaining sizing steel support (3) sizing is lifted to service channel the openings position for originating portal (4) by step 2
Place, and the front port welding for accepting cylinder (2) is mounted on service channel and is originated on the hole of portal (4), make to accept cylinder (2) in hole
It is fixed on mouthful；
Step 3 removes sizing steel support (3) in the tail portion port for accepting cylinder (2), and utilizes flange arrangement replacement connection sleeve body
(2a) is bolted undertaking cylinder (2) and sleeve body (2a) and constitutes steel bushing (1), and complete the peace of steel bushing (1)
Dress.
6. shield method service channel according to claim 5 originates portal steel bushing installation method, it is characterized in that: step 2
It is middle that will to accept cylinder (2) lifting and originate to service channel at the openings positions of portal (4) be to carry out according to the following procedure:
Step 2.1 selectes four lifting points before portal, wherein two inside lifting points (5a) are in tunnel where hole
In the tunnel-side of side, and it is symmetrically distributed in the both sides at hole；Two outside lifting points (5b) are to be in tunnel and hole
In the tunnel-side of opposite side, the head-down position of four lifting points is four vertex positions of rectangle；It is set on each lifting point
Tackles are set, the inside tackles on the inside of two on lifting point is mounted in respectively and is mounted on the lifting point of two outsides
Outside tackles；Week equally distributed four lifting lugs are held round along sizing steel in sizing steel support (3)；
Step 2.2, four tackles portal first four lifting point and sizing steel support corresponded between upper four lifting lugs into
Row connection will be fixedly connected on the undertaking cylinder lifting in sizing steel support in level using four tackles, and sling height is not low
In the height of hole top edge；The bottom accepted cylinder and be located at sizing steel support being in a horizontal state；
Step 2.3 keeps the lifting degree of two inside tackles high, and the lifting of two outside tackles of synchronous release is high
Degree, overturning the support of sizing steel together with undertaking cylinder is state in a vertical shape, and undertaking cylinder is in the hole position that service channel originates portal
Set place.
7. shield method service channel according to claim 6 originates portal steel bushing installation method, it is characterized in that: the step
In rapid 3 after sizing steel support (3) is removed in the tail portion port for accepting cylinder (2), keeps the lifting degree of two inside tackles high, receive
Tight two outsides tackles make the sizing steel of vertical state support (3) then are in level, then four lifting calabashes of synchronous release
Sizing steel support (3) is in lie in a horizontal plane on tunnel transport vehicle (6), and be transported to outside tunnel with tunnel transport vehicle (6) by reed.
8. shield method service channel according to claim 6 or 7 originates portal steel bushing installation method, it is characterized in that: setting
Two inside horizontal distances of the lifting point away from portal are set no more than level of the lifting lug apart from portal on corresponding position in sizing steel support
Distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049243.7A CN109653774B (en) | 2019-01-18 | 2019-01-18 | Shield method connection channel starting portal steel sleeve bearing structure and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049243.7A CN109653774B (en) | 2019-01-18 | 2019-01-18 | Shield method connection channel starting portal steel sleeve bearing structure and installation method thereof |
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| Publication Number | Publication Date |
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| CN109653774A true CN109653774A (en) | 2019-04-19 |
| CN109653774B CN109653774B (en) | 2023-11-21 |
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| CN201910049243.7A Active CN109653774B (en) | 2019-01-18 | 2019-01-18 | Shield method connection channel starting portal steel sleeve bearing structure and installation method thereof |
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Cited By (1)
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|---|---|---|---|---|
| CN112031810A (en) * | 2020-09-27 | 2020-12-04 | 中铁工程装备集团有限公司 | Connecting channel portal structure and connecting method thereof |
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| CN108625870A (en) * | 2018-06-13 | 2018-10-09 | 中铁工程装备集团有限公司 | A kind of Mechanical Method service channel originates reception sealing device with development machine |
| CN209742919U (en) * | 2019-01-18 | 2019-12-06 | 中铁上海工程局集团有限公司 | Shield method contact passage starting tunnel portal steel sleeve supporting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031810A (en) * | 2020-09-27 | 2020-12-04 | 中铁工程装备集团有限公司 | Connecting channel portal structure and connecting method thereof |
| CN112031810B (en) * | 2020-09-27 | 2022-05-27 | 中铁工程装备集团有限公司 | Connecting channel portal structure and connecting method thereof |
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