CN205778943U - A kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited - Google Patents
A kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited Download PDFInfo
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- CN205778943U CN205778943U CN201620513327.3U CN201620513327U CN205778943U CN 205778943 U CN205778943 U CN 205778943U CN 201620513327 U CN201620513327 U CN 201620513327U CN 205778943 U CN205778943 U CN 205778943U
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- jurisdiction
- section
- arc
- transfinited
- lifting
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Abstract
The utility model discloses a kind of duct pieces of shield tunnel that is applicable to and settle the lifting system transfinited, including several lift units, each lift unit includes being positioned at the jack on ground, internal stay in the arc-shaped steel bracket of section of jurisdiction to be hoisted intrados, the section of jurisdiction lifting hole connected with section of jurisdiction to be hoisted through ground and steel strand wires, one end of described steel strand wires is directly or indirectly fixed on arc-shaped steel bracket after the lifting hole of section of jurisdiction, and the other end of steel strand wires connects jack.This utility model can efficiently solve shield tunnel lining segment and settle the lifting problem transfinited, and it is simple and quick to construct, it is not necessary to special equipment, and lifting effect is obvious, remarkable in economical benefits, and the tunnel duct piece being suitable for various stratum settles improvement of transfiniting.
Description
Technical field
This utility model relates to a kind of lifting system in Construction of Civil Engineering research field, and a kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited.
Background technology
Lining cutting refers to as preventing surrouding rock deformation or caving in, the permanent supporting construction built along materials such as tunnel trunk periphery armored concrete.Lining Technique is usually applied in Tunnel Engineering, water conservancy channel.It is used in the tunnel-liner of the prefabricated section of jurisdiction component assembly of factory or building site.
It is a kind of qualitative problems of construction common in constructing tunnel that tunnel lining segment sinks, and the processing method to it mainly has two kinds at present: slip casting pressurization and method of relocating.Slip casting pressurization refers to inject rapid hardening serosity by pressurization in the surrounding soil below lining segment, relies on the counteracting force lifting lining segment after grout cures.The method of relocating is in time occurring lining segment to sink, and suitably modified driving route circumvents at lining segment sinking.
For slip casting pressurization, owing to lining segment junction is not to fully seal, injection slurry may be by gap seepage, or around soil layer permeability is big, running pulp occurs, causes pressure inadequate, section of jurisdiction lifting weak effect, even lifting is uneven, and additionally when section of jurisdiction sinking is excessive, slip casting pressurization would become hard to implement work.Method of relocating cost is high, and is affected greatly by topographic and geologic, it is impossible to unconfined amendment route.
Utility model content
The purpose of this utility model, is to provide a kind of duct pieces of shield tunnel that is applicable to settle the lifting system transfinited.
This utility model solves the solution of its technical problem: a kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited, including several lift units, each lift unit includes being positioned at the jack on ground, internal stay in the arc-shaped steel bracket of section of jurisdiction to be hoisted intrados, the section of jurisdiction lifting hole connected with section of jurisdiction to be hoisted through ground and steel strand wires, one end of described steel strand wires is directly or indirectly fixed on arc-shaped steel bracket after the lifting hole of section of jurisdiction, and the other end of steel strand wires connects jack.
Further improvement as technique scheme, described arc-shaped steel bracket includes bow, cross-brace and the longitudinal girder steel that straight chord member is consistent with the arc of section of jurisdiction to be hoisted intrados, and one end of described steel strand wires is fixed in cross-brace by connecting plate after the lifting hole of section of jurisdiction.
As the further improvement of technique scheme, described arc-shaped steel bracket is fixed on top, section of jurisdiction to be hoisted after contacting with the intrados at top, section of jurisdiction to be hoisted.
As the further improvement of technique scheme, the central angle of described the constituted circular arc of arc-shaped steel bracket is 120 ~ 150 °.
As the further improvement of technique scheme, being cased with pvc pipe in the lifting hole of described section of jurisdiction, one end of described steel strand wires is directly or indirectly fixed on arc-shaped steel bracket after the pvc pipe in the lifting hole of section of jurisdiction.
As the further improvement of technique scheme, between described jack and ground, it is disposed with billet.
As the further improvement of technique scheme, described jack is hydraulic jack.
The beneficial effects of the utility model are: this utility model, by arranging the lift unit of respective numbers, uses crane tentatively to promote arc-shaped steel bracket and contacts with the intrados of section of jurisdiction to be hoisted, the most locked jack；Starting jack hydraulic pump, lifting section of jurisdiction is to designed elevation the most step by step, fills in cement-silicate mixing dual slurry, and after serosity reaches intensity, dismounting arc-shaped steel torr, jack etc., with strong concrete packing hole.After using the lift unit in this utility model, the most effectively solve lining segment sinking overrun issues, and the engineering time is short, low cost, also without revising original highway route design.This utility model can efficiently solve shield tunnel lining segment and settle the lifting problem transfinited, and it is simple and quick to construct, it is not necessary to special equipment, and lifting effect is obvious, remarkable in economical benefits, and the tunnel duct piece being suitable for various stratum settles improvement of transfiniting.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model rather than whole embodiment, and those skilled in the art is not on the premise of paying creative work, it is also possible to obtain other designs and accompanying drawing according to these accompanying drawings.
Structural representation when Fig. 1 is utility model works；
Fig. 2 is this utility model arc-shaped steel bracket structural representation when being positioned at section of jurisdiction to be hoisted；
Fig. 3 is the structural representation of arc-shaped steel bracket in this utility model.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to be completely understood by the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model rather than whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art is obtained on the premise of not paying creative work, belong to the scope of this utility model protection.It addition, all connection/annexations being previously mentioned in literary composition, the most singly refer to that component directly connects, and refer to couple auxiliary according to being embodied as situation by adding or reducing, form more excellent draw bail.
With reference to Fig. 1～Fig. 3, a kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited, including several lift units, according to requirement of engineering, the lift unit meeting requirement of engineering can be correspondingly set, one section of jurisdiction to be hoisted of each lift unit coupling, section of jurisdiction connecting sewing is there is between adjacent two described sections of jurisdiction 2 to be hoisted, each lift unit includes the jack 8 being positioned on ground, internal stay is in the arc-shaped steel bracket 1 of section of jurisdiction 2 to be hoisted intrados, the section of jurisdiction lifting hole connected with section of jurisdiction 2 to be hoisted through ground and steel strand wires 6, one end of described steel strand wires 6 is directly or indirectly fixed on arc-shaped steel bracket 1 after the lifting hole of section of jurisdiction, the other end of steel strand wires 6 connects jack 8.
By arranging the lift unit of respective numbers, use crane tentatively to promote arc-shaped steel bracket 1 and contact with the intrados of section of jurisdiction 2 to be hoisted, the most locked jack 8；Starting jack 8 hydraulic pump, lifting section of jurisdiction is to designed elevation the most step by step, fills in cement-silicate mixing dual slurry, and after serosity reaches intensity, dismounting arc-shaped steel torr, jack etc., with strong concrete packing hole.After using the lift unit in this utility model, the most effectively solve lining segment sinking overrun issues, and the engineering time is short, low cost, also without revising original highway route design.This utility model can efficiently solve shield tunnel lining segment and settle the lifting problem transfinited, and it is simple and quick to construct, it is not necessary to special equipment, and lifting effect is obvious, remarkable in economical benefits, and the tunnel duct piece being suitable for various stratum settles improvement of transfiniting.
It is further used as preferred embodiment, described arc-shaped steel bracket 1 includes bow 11, cross-brace 3 and the longitudinal girder steel 4 that straight chord member 10 is consistent with the arc of section of jurisdiction 2 to be hoisted intrados, and one end of described steel strand wires 6 is fixed in cross-brace 3 by connecting plate 5 after the lifting hole of section of jurisdiction.After being fitted completely by bow 11 and section of jurisdiction 2 to be hoisted intrados, arc-shaped steel bracket 1 being fixed on section of jurisdiction 2 to be hoisted intrados, arc-shaped steel bracket 1 can use material to include being not limited to I-steel, angle steel, channel-section steel
Being further used as preferred embodiment, described arc-shaped steel bracket 1 is fixed on top, section of jurisdiction 2 to be hoisted after contacting with the intrados at top, section of jurisdiction 2 to be hoisted.
It is further used as preferred embodiment, the central angle of described the constituted circular arc of arc-shaped steel bracket 1 is 120 ~ 150 °, after being eccentrically mounted in section of jurisdiction 2 to be hoisted by arc-shaped steel bracket 1, and the installation site of two adjacent sections of jurisdiction 2 to be hoisted is in the same side and on the same line, it is simple to promoted section of jurisdiction 2 to be hoisted.
Being further used as preferred embodiment, be cased with pvc pipe in the lifting hole of described section of jurisdiction, one end of described steel strand wires 6 is directly or indirectly fixed on arc-shaped steel bracket 1 after the pvc pipe in the lifting hole of section of jurisdiction, by pvc pipe, section of jurisdiction lifting hole is carried out retaining wall.
It is further used as preferred embodiment, is disposed with billet 7 between described jack 8 and ground, increases earth's surface bearing capacity by billet 7.
Being further used as preferred embodiment, described jack 8 is hydraulic jack.
The following is an embodiment of this utility model application.
Certain shield tunnel project, lining-up structure is single shell lining section of jurisdiction, uses C50 high strength reinforced concrete, section of jurisdiction external diameter 6000mm, internal diameter 5400mm, thick 300mm.Superstratum, lining-up top, tunnel thickness about 16.0m, stratum be down followed successively by from earth's surface banket, mud stone, silty, argillaceous siltstoue, siltstone, mud stone, silty, lining-up structural base stratum is mud stone, silty.Near shield machine is appeared, because of synchronous grouting not in time, causing 395 ~ 402 endless tube sheet sedimentations to be transfinited, sedimentation value reaches 27 ~ 198mm, and section of jurisdiction of must transfiniting sinking is administered.
Because near hole, stratum maintains incessantly grouting pressure, it is impossible to employing slip casting pressurization lifting section of jurisdiction, therefore the lifting system improving grouting behind shaft or drift lining being considered as in this utility model.
The first step: lining segment settles investigation of transfiniting
Using leveling measuring method, in finding out tunnel, 395 ~ 402 endless tube sheet sedimentations are transfinited, and sedimentation value reaches 27 ~ 198mm, and needing lifting section of jurisdiction number is 6 rings, about 9.0m.Superstratum, section of jurisdiction thickness about 16.0m, is mud stone, silty bottom section of jurisdiction.
Second step: design and fabrication arc-shaped steel bracket 1
According to tunnel-liner top shape, sedimentation transfinite section of jurisdiction quantity, estimate the data such as lifting force, use the design of material such as I-steel, channel-section steel, steel plate to make lifting arc-shaped steel bracket 1, as shown in Figure 2.
3rd step: design and construction section of jurisdiction lifting hole
According to the position settling section of jurisdiction 2 to be hoisted of transfiniting, using the summit, the section of jurisdiction 2 to be hoisted vertical projected position on earth's surface as lifting hole position, section of jurisdiction, form section of jurisdiction lifting hole after using Ф 89mm down-the-hole drill pore-creating, section of jurisdiction must be drilled through, use the pvc pipe of Ф 75mm that section of jurisdiction lifting hole is carried out retaining wall.
4th step: assemble section of jurisdiction and promote system
By lifting hole, using 4 φ 16 steel strand wires 6, steel strand wires 6 lower end is fixed in the cross-brace 3 of arc-shaped steel bracket 1 via connecting plate 5, and steel strand wires 6 upper end connects hydraulic jack on earth's surface, uses billet 7 to increase earth's surface bearing capacity between hydraulic jack and earth's surface.
5th step: section of jurisdiction promotes operation
Use on earth's surface crane to be sling arc-shaped steel bracket 1 by steel strand wires 6, make arc-shaped steel bracket 1 contact with top, section of jurisdiction 2 to be hoisted intrados, then locked hydraulic jack and anchor cup on earth's surface；Start the hydraulic power unit of hydraulic jack, slowly promote section of jurisdiction to be hoisted 2 to designed elevation.
6th step: slip casting is filled and reinforced
After section of jurisdiction 2 to be hoisted is promoted to designed elevation, the lifting force keeping hydraulic jack is constant, is filled to the slip casting of stratum, bottom by injected hole position, section of jurisdiction, and material uses cement-silicate mixing dual slurry, carries out portal closure slip casting simultaneously.
7th step: ending operation
After slip casting holds lotus 24 hours, after around section of jurisdiction, injecting paste material reaches intensity, slowly release Hydraulic Jack carries out diastole, during the moment observe measurement data, after section of jurisdiction is without large variation, transfer steel strand wires 6, unload arc-shaped steel bracket 1, remove jack, use strong concrete packing hole.
It is above better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement on the premise of this utility model spirit, and modification or the replacement of these equivalents are all contained in the application claim limited range.
Claims (7)
1. one kind is applicable to the lifting system that duct pieces of shield tunnel sedimentation is transfinited, it is characterized in that: include several lift units, each lift unit includes being positioned at the jack on ground, internal stay in the arc-shaped steel bracket of section of jurisdiction to be hoisted intrados, the section of jurisdiction lifting hole connected with section of jurisdiction to be hoisted through ground and steel strand wires, one end of described steel strand wires is directly or indirectly fixed on arc-shaped steel bracket after the lifting hole of section of jurisdiction, and the other end of steel strand wires connects jack.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 settles the lifting system transfinited, it is characterized in that: described arc-shaped steel bracket includes bow, cross-brace and the longitudinal girder steel that straight chord member is consistent with the arc of section of jurisdiction to be hoisted intrados, and one end of described steel strand wires is fixed in cross-brace by connecting plate after the lifting hole of section of jurisdiction.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 settles the lifting system transfinited, it is characterised in that: described arc-shaped steel bracket is fixed on top, section of jurisdiction to be hoisted after contacting with the intrados at top, section of jurisdiction to be hoisted.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 and 2 settles the lifting system transfinited, it is characterised in that: the central angle of described the constituted circular arc of arc-shaped steel bracket is 120 ~ 150 °.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 settles the lifting system transfinited, it is characterized in that: be cased with pvc pipe in the lifting hole of described section of jurisdiction, one end of described steel strand wires is directly or indirectly fixed on arc-shaped steel bracket after the pvc pipe in the lifting hole of section of jurisdiction.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 settles the lifting system transfinited, it is characterised in that: it is disposed with billet between described jack and ground.
The duct pieces of shield tunnel that is applicable to the most according to claim 1 settles the lifting system transfinited, it is characterised in that: described jack is hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513327.3U CN205778943U (en) | 2016-05-31 | 2016-05-31 | A kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513327.3U CN205778943U (en) | 2016-05-31 | 2016-05-31 | A kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778943U true CN205778943U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620513327.3U Expired - Fee Related CN205778943U (en) | 2016-05-31 | 2016-05-31 | A kind of duct pieces of shield tunnel that is applicable to settles the lifting system transfinited |
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| CN (1) | CN205778943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868820A (en) * | 2018-09-30 | 2018-11-23 | 西南石油大学 | A kind of soft soil foundation shield tunnel subsidence control structure and application method |
| CN109695459A (en) * | 2018-12-07 | 2019-04-30 | 中建八局轨道交通建设有限公司 | Section of jurisdiction lifting device and its application method |
-
2016
- 2016-05-31 CN CN201620513327.3U patent/CN205778943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868820A (en) * | 2018-09-30 | 2018-11-23 | 西南石油大学 | A kind of soft soil foundation shield tunnel subsidence control structure and application method |
| CN109695459A (en) * | 2018-12-07 | 2019-04-30 | 中建八局轨道交通建设有限公司 | Section of jurisdiction lifting device and its application method |
| CN109695459B (en) * | 2018-12-07 | 2024-02-13 | 中建八局轨道交通建设有限公司 | Segment lifting tool and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210531 |