CN205259215U - Open trench tunnel open type major structure side wall bailey frame formwork - Google Patents
Open trench tunnel open type major structure side wall bailey frame formwork Download PDFInfo
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- CN205259215U CN205259215U CN201521090038.9U CN201521090038U CN205259215U CN 205259215 U CN205259215 U CN 205259215U CN 201521090038 U CN201521090038 U CN 201521090038U CN 205259215 U CN205259215 U CN 205259215U
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- bailey
- bailey truss
- truss
- side wall
- back cord
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Abstract
Open trench tunnel open type major structure side wall bailey frame formwork, including inboard relative exterior sheathing and inner formword, the exterior sheathing outside sets up a bailey truss, and the inner formword outside sets up the 2nd bailey truss, sets up the connecting rod between a bailey truss and the 2nd bailey truss's the upper portion, and a bailey truss and the 2nd bailey truss's lower part all sets up pre -buried screw rod, and the 2nd bailey truss upper portion slopes to a bailey truss. The utility model discloses a bailey frame need not split bolt as support system, can effectively improve the waterproof performance of wall body, possesses advantages such as bearing capacity is big, the structural rigidity is strong, anti fatigue life is long, the strong bearing capacity of bailey truss rigidity who adopts is big, can effectively ensure the quality of engineering. Adopt the construction of bailey truss formwork executing under the narrow short condition in industrial area ground, ensure the noncongestion of builder's road, improve the efficiency, can also practice thrift the backing material for the construction progress.
Description
Technical field
The utility model relates to open trench tunnel agent structure side wall formwork, specifically open trench tunnel open type body junctionStructure side wall Bailey bracket formwork.
Background technology
In the construction of open trench tunnel structure side wall, generally adopt the form of on-the-spot formwork cast in situs to carry out agent structure sideThe construction of wall. In traditional construction technology, conventionally adopt steel pipe support as the stressed support of agent structure side wall template. But along withThe expansion of tunnel construction scale, the rack form that conventional steel supports is more and more difficult to meet the requirement of tunnel sidewalls construction, mainShow as: 1., along with the development of China's economy, infrastructure construction land used is more and more nervous, in some responsive locations,Tunnel construction often adopts the mode of vertical supporting, keep for the operating space of follow-up construction very narrow, but steel pipe support is takenIf need take larger space, stop up builder's road, cause large-scale construction equipment impassable, affect other structural sections construct intoDegree; 2. due to the increase of side wall volume, cause the lateral pressure that produces in filling concrete process larger, conventional steel supports institute and carriesThe support force of confession is difficult to meet the requirement of present stage side wall concrete perfusion, can bring certain potential safety hazard to work progress;3. present stage China's infrastructure construction has the features such as the duration is short, task heavy, circuit is long, and conventional steel supports dismantlement work amountLarger, the efficiency of construction of side wall is had a greatly reduced quality, be difficult to meet the requirement of present stage China's infrastructure construction for the duration; 4.Be subject to the restriction of the design feature of steel pipe support form own, interior outboard template need to be reinforced by split bolt, to drawing spiral shellBolt need to pass side wall, can affect to the waterproof quality of structure side wall.
Utility model content
For addressing the above problem, the purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of structure letter is providedSingle, easy assembling, the open trench tunnel open type agent structure side wall Bailey bracket formwork that turnover property is strong and water resistance is good.
The utility model for achieving the above object, is achieved through the following technical solutions: open trench tunnel open type agent structureSide wall Bailey bracket formwork, comprises exterior sheathing and inner formword that inner side is relative, exterior sheathing arranged outside the first Bailey truss, internal moldPlate arranged outside the second Bailey truss, arranges connecting rod, the first shellfish between the first Bailey truss and the top of the second Bailey trussThe bottom of thunder truss and the second Bailey truss all arranges pre embedded bolt, and the second Bailey truss top tilts to the first Bailey truss.
For further realizing the purpose of this utility model, can also be by the following technical solutions: described exterior sheathing andSeveral horizontal back cords and vertical back cord are set between one Bailey truss, and laterally back cord is connected with exterior sheathing, and vertical back cord is positioned at horizontal strokeBetween back cord and the first Bailey truss, several horizontal back cords and vertical back cord are set between inner formword and the second Bailey truss,Laterally back cord is connected with inner formword, and vertical back cord is laterally between back cord and the second Bailey truss; The first described Bei Lei purlinThe one end of on frame and the second Bailey truss, several jackings being installed respectively, the other end of jacking connects corresponding vertical back cord; InstituteThe second Bailey truss one side of stating arranges diagonal brace, and the second Bailey truss one side lower part arranges cushion block; The first described Bailey trussBottom connects foundation bolt.
The utility model has the advantage of: the utility model adopts Bailey bracket as support system, without split bolt, canEffectively improve the water resistance of body of wall, and reduce construction costs, be conducive to environmental protection, there is simple in structure, convenient transportation, set up fastSpeed, decomposition are easy to feature, possess the advantages such as bearing capacity is large, structural rigidity is strong, anti-fatigue life is long simultaneously; The shellfish thunder adoptingThe strong bearing capacity of truss rigidity is large, can effectively guarantee the quality of engineering, and sidewall structure integral linear is consistent, concrete appearance matterMeasure, ensure that perpendicularity, the flatness of side wall all meets the demands. Adopt Bailey truss formwork construction narrow urging on construction groundCondition under, ensure builder's road unimpeded, make the engineering construction can the operation of concurrent flow aquation, improve effect, can also saveBacking material, accelerating construction progress, improves the degree of mechanization, improves execution conditions, guarantees from time benefit and economic benefitOn can reach re-set target.
Brief description of the drawings
Fig. 1 is the utility model structural representation; Fig. 2 is the first Bailey truss and pre embedded bolt syndeton schematic diagram;Fig. 3 is that jacking uses view; Fig. 4 is that connecting rod uses view.
Reference numeral: the vertical back cord of the 1 first Bailey truss 2 pre embedded bolt 3 exterior sheathing horizontal back cord 6 of 4 inner formword 57 jacking 8 billet 9 foundation bolt 10 cushion block 11 diagonal brace 12 connecting rod 13 structure side wall 14 screw-thread steel connectors 15Two Bailey truss.
Detailed description of the invention
As shown in Figure 1, open trench tunnel open type agent structure side wall Bailey bracket formwork, comprises the exterior sheathing 3 that inner side is relativeWith inner formword 4, exterior sheathing 3 arranged outside the first Bailey truss 1, inner formword 4 arranged outside the second Bailey truss 15, connecting rod 12, the first Bailey truss 1 Hes are set between the first Bailey truss 1 and the top of the second Bailey truss 15The bottom of the second Bailey truss 15 all arranges pre embedded bolt 2, the second Bailey truss 15 tops to the first Bailey truss 1Tilt. This structure is utilized the Form Characteristic of open trench tunnel open type agent structure, uses Bailey bracket composition load to support, structureSimply, easily assembling, turnover property is strong and water resistance is good, for side wall template provides enough anti-sidesway power, has both improved templateConstruction precision, ensured the waterproof quality of side wall greatly to have improved again side wall efficiency of construction and project progress.
Several horizontal back cords 5 and vertical back cord 6 are set between described exterior sheathing 3 and the first Bailey truss 1,Laterally back cord 5 is connected with exterior sheathing 3, vertical back cord 6 between horizontal back cord 5 and the first Bailey truss 1, inSeveral horizontal back cords 5 and vertical back cord 6 are set between template 4 and the second Bailey truss 15, laterally back cord 5 with inTemplate 4 connects, and vertical back cord 6 is laterally between back cord 5 and the second Bailey truss 15. This structure facilitates shellfish thunderThe installation and removal of truss and template, and it is more firm that Bailey truss and template are fixed, and avoids Bailey truss and template to depart from.
The one end of on the first described Bailey truss 1 and the second Bailey truss 15, several jackings 7 being installed respectively, topThe other end of holder 7 connects corresponding vertical back cord 6. This structure is convenient according to different lateral stresses, regulates by jacking 7Distance between vertical back cord 6 and Bailey truss. Jacking 7 is adjustable jacking.
The second described Bailey truss 15 1 sides arrange diagonal brace 11, the second Bailey truss 15 1 side lower parts pad are setPiece 10. This structure makes the second Bailey truss 15 fixations.
The first described Bailey truss 1 bottom connects foundation bolt 9. This structure makes the first Bailey truss 1 fixingFirmly.
Described diagonal brace 11 bottoms connect foundation bolt 9. This structure makes diagonal brace 11 and the second Bailey truss 15Fixation.
The construction technology of open trench tunnel open type agent structure side wall Bailey bracket formwork, comprises the following steps:
Step 1: agent structure base plate and 1.2 meters of side walls are built;
Step 2: exterior sheathing 3 is installed, installs the first Bailey truss 1 additional in exterior sheathing 3 outsides;
Step 3: inner formword 4 is installed, installs the second Bailey truss 15 additional in inner formword 4 outsides;
Step 4: the first Bailey truss 1 and the second Bailey truss 15 are connected and fixed;
Step 5: side wall reaches after strength of mould stripping, outboard template and respective support facility in removing.
The construction technology of open trench tunnel open type agent structure side wall Bailey bracket formwork, in step 2 and step 3, exterior sheathing3 and inner formword 4 outsides install horizontal back cord 5 additional, between Bailey truss and laterally back cord 5, install vertical back cord 6 additional, andBe supported on Bailey truss with jacking 7.
The construction technology of open trench tunnel open type agent structure side wall Bailey bracket formwork, in step 1 at 1.2 meters of side wall reinforcing barsIn process of binding, together with main to pre embedded bolt 2 and side wall muscle need to being welded and fixed.
The construction technology of open trench tunnel open type agent structure side wall Bailey bracket formwork, interior outboard template and phase in step 5Should support after facility dismounting, pre embedded bolt 2 be excised, and excision face is carried out to antiseepage processing.
In step 1, described pre embedded bolt is M25 fining twisted steel.
In step 1, when described pre embedded bolt is pre-buried, apart from plate top surface relative elevation be: inner side 0.5m, outside 0.3m, buriesEnter the degree of depth and be 0.8m.
In step 1, described pre embedded bolt external end head exposes 8cm, is connected the supporting screw-thread steel connector of outer bolt with being provided withConnect, as shown in Figure 2.
In step 2, Bailey truss adopts " 321 highway steel bridge type " Bailey bracket.
In step 2, Bailey truss is established double individual layer Bailey bracket described in per pass, and the center distance of two row's Bailey brackets are 1.0m.
In step 2, described horizontal back cord is 5The 10cm lumps of wood, described vertical back cord is 10The 10cm lumps of wood.
In step 2, as shown in Figure 3, described adjustable jack is that [10 channel-section steels and steel pipe coordinate adjustable jack.
Coordinate installation for convenience of processing and manufacturing and parts, save processing cost, in step 3, side wall inner formword back cord,Bailey truss and adjustable jack are all outer identical with exterior sheathing.
In step 4, being connected and fixed of described inside and outside Bailey truss comprises that fulcrum is fixed and lower fulcrum is fixed. Upper fulcrum is adoptedInterior outside Bailey truss is connected and fixed and is integrated with connecting rod 12, lower fulcrum adopts pre embedded bolt 2 conducts described in step 2Template stressed member, connects inside and outside Bailey truss.
In step 4, the second Bailey truss 15 bottoms add foundation bolt to be strengthened fixing, and angle steel is established in the second Bailey truss 15 bottomsThe cushion block 10 of processing welding wedge shape.
In step 4, the first Bailey truss 1 adds channel-section steel diagonal brace one at middle part, to stablize medial branch modular system.
The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model. This practicality is newThe type not technology contents of detailed description is known technology.
Claims (6)
1. open trench tunnel open type agent structure side wall Bailey bracket formwork, is characterized in that: comprise the exterior sheathing (3) that inner side is relativeAnd inner formword (4), exterior sheathing (3) arranged outside the first Bailey truss (1), inner formword (4) arranged outside the second Bailey truss(15), between the first Bailey truss (1) and the top of the second Bailey truss (15), connecting rod (12) is set, the first Bailey truss(1) bottom of and the second Bailey truss (15) all arranges pre embedded bolt (2), and the second Bailey truss (15) top is to the first Bei Lei purlinFrame (1) tilts.
2. open trench tunnel open type agent structure side wall Bailey bracket formwork according to claim 1, is characterized in that: described inExterior sheathing (3) and the first Bailey truss (1) between several horizontal back cords (5) and vertical back cord (6) are set, laterally back cord (5)Be connected with exterior sheathing (3), vertical back cord (6) is positioned between horizontal back cord (5) and the first Bailey truss (1), inner formword (4) and theSeveral horizontal back cords (5) and vertical back cord (6) are set between two Bailey truss (15), and laterally back cord (5) connects with inner formword (4)Connect, vertical back cord (6) is positioned between horizontal back cord (5) and the second Bailey truss (15).
3. open trench tunnel open type agent structure side wall Bailey bracket formwork according to claim 2, is characterized in that: described inThe first Bailey truss (1) and the second Bailey truss (15) on one end of several jackings (7), another of jacking (7) are installed respectivelyEnd connects corresponding vertical back cord (6).
4. open trench tunnel open type agent structure side wall Bailey bracket formwork according to claim 1, is characterized in that: described inThe second Bailey truss (15) one sides diagonal brace (11) is set, the second Bailey truss (15) one side lower parts arrange cushion block (10).
5. open trench tunnel open type agent structure side wall Bailey bracket formwork according to claim 1, is characterized in that: described inThe first Bailey truss (1) bottom connect foundation bolt (9).
6. open trench tunnel open type agent structure side wall Bailey bracket formwork according to claim 4, is characterized in that: described inDiagonal brace (11) bottom connect foundation bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090038.9U CN205259215U (en) | 2015-12-24 | 2015-12-24 | Open trench tunnel open type major structure side wall bailey frame formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090038.9U CN205259215U (en) | 2015-12-24 | 2015-12-24 | Open trench tunnel open type major structure side wall bailey frame formwork |
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| Publication Number | Publication Date |
|---|---|
| CN205259215U true CN205259215U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521090038.9U Active CN205259215U (en) | 2015-12-24 | 2015-12-24 | Open trench tunnel open type major structure side wall bailey frame formwork |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586987A (en) * | 2015-12-24 | 2016-05-18 | 中铁十四局集团有限公司 | Open type main structure side wall bailey truss formwork of open trench tunnel and construction process thereof |
-
2015
- 2015-12-24 CN CN201521090038.9U patent/CN205259215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586987A (en) * | 2015-12-24 | 2016-05-18 | 中铁十四局集团有限公司 | Open type main structure side wall bailey truss formwork of open trench tunnel and construction process thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |