CN104631710A - Cushion block - Google Patents
Cushion block Download PDFInfo
- Publication number
- CN104631710A CN104631710A CN201510086120.2A CN201510086120A CN104631710A CN 104631710 A CN104631710 A CN 104631710A CN 201510086120 A CN201510086120 A CN 201510086120A CN 104631710 A CN104631710 A CN 104631710A
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- China
- Prior art keywords
- cushion block
- groove
- top surface
- plane
- side surfaces
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention belongs to the technical field of constructional engineering, and discloses a cushion block. The cushion block comprises a top surface, a top surface and a plurality of side surfaces, which are arranged on the cushion block, wherein the bottom surface is a plane, a groove is formed in the top surface, two side surfaces positioned at two ends of the groove are inclined surfaces, and upper parts of the two side surfaces inwards incline. The side surfaces at two ends of the groove of the cushion block are set to be the inclined surfaces, the bottom surface of the cushion block is set to be a plane, the top surface is in contact with a supported steel bar by virtue of the groove, the stress per unit area is gradually reduced in a process of transferring the pressure from the top surface to the bottom surface, so that the cushion block is not easily broken and stably supported.
Description
Technical field
The present invention relates to construction engineering technical field, particularly a kind of cushion block.
Background technology
Immersed tube tunnel volume is comparatively large, the long 22.5m of every sections, wide 37.95m, high 11.4m, and immersed tube section is large; Reinforcing bar binding is intensive, and reinforcing cage weight is about 1100t, and primary concreting concrete square amount is 3340m.Reinforcing cage requires high to topping, for ensureing that topping can meet technological requirement, at During Initial Stage Construction, all supports cushion block at the top board of reinforced frame, base plate and middle wall.
In work progress, base plate and top board bottom stressed comparatively large, cushion block cannot bear the weight of reinforcing cage, the phenomenon of a large amount of cushion block fragmentation is there will be in work progress, after cushion block fragmentation, residue cannot be cleared up, and affects concrete adhesive property, causes immersed tube surface to occur pitted skin; Cushion block broken region steel bar cage protecting layer less thick, affects concrete water resistance, causes immersed tube tunnel to occur infiltration phenomenon.
Middle side wall arranges cushion block place, stops by cushion block, and concrete cannot smooth flow, as concrete vibrating is not in place, cushion block place can be caused to occur hole phenomenon, make middle side wall concreting cannot be closely knit, affect immersed tube tunnel watertightness, form penetrating passage, occur infiltration phenomenon; Thus affect the application life of immersed tube.So traditional cushion block cannot meet the construction requirement of immersed tube tunnel concrete in mass topping.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: for solving in large volume immersed tube casting process, reinforced frame top board and base plate place cushion block easily cracked, affect the problem of immersed tube tunnel watertightness.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of cushion block, comprise the end face be arranged on cushion block, bottom surface and multiple side, described bottom surface is plane, described end face is provided with groove, two sides being positioned at described groove two ends are inclined-plane, and the top of two described sides all slopes inwardly.
Wherein, this cushion block is provided with tied silk hole, and described tied silk hole is through hole.
Wherein, described tied silk hole is one or more.
Wherein, described groove is multiple, and multiple described groove is parallel to each other.
Wherein, described groove is arc.
Wherein, the junction of multiple described groove is arcuate structure.
(3) beneficial effect
Technique scheme tool has the following advantages: a kind of cushion block of the present invention, and the side at groove two ends is set to inclined-plane, and cushion block bottom surface is plane, end face is contacted with by bearing bar by groove, and pressure is from end face to the transmittance process of bottom surface, and unit area is stressed to be reduced gradually, cushion block is not easily broken, supporting & stablizing.
Accompanying drawing explanation
Fig. 1 is the stereogram of cushion block described in the embodiment of the present invention one;
Fig. 2 is the elevation of cushion block described in the embodiment of the present invention one;
Fig. 3 is the lateral view of cushion block described in the embodiment of the present invention one;
Fig. 4 is the stereogram of cushion block described in the embodiment of the present invention two;
Fig. 5 is the elevation of cushion block described in the embodiment of the present invention two;
Fig. 6 is the lateral view of cushion block described in the embodiment of the present invention two.
Wherein, 1, cushion block; 2, groove; 3, tied silk hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment one:
As shown in Figures 1 to 3, the present invention discloses a kind of cushion block, in immersed tube tunnel casting process, supports, to increase the thickness of steel bar cage protecting layer, ensure its watertightness to the top board of reinforced frame, base plate and middle wall.The present invention includes the end face be arranged on cushion block 1, bottom surface and multiple side, described bottom surface is plane, and described end face is provided with groove 2, and two sides being positioned at described groove 2 two ends are inclined-plane, and the top of two described sides all slopes inwardly.This cushion block 1 is provided with tied silk hole 3, and described tied silk hole 3 is through hole, and described tied silk hole 3 is one, and described groove 2 is one, and described groove 2 is arc.
Preferably, cushion block 1 is set to column-type, wherein at least one pair of side is intilted inclined-plane, top, makes cushion block 1 both sides symmetrical, improves the stability of cushion block 1; Cushion block 1 bottom area is greater than topside area, and unit area is stressed from top to bottom reduces gradually, and bearing capacity strengthens gradually, and cushion block 1 is not easily broken.
During use, reinforcing bar to be supported is put into groove 2, after adjusting the direction of cushion block 1, the tied silk in tied silk hole 3 is tied up on reinforcing bar, to realize fixing cushion block 1.
Embodiment two:
As shown in Figs. 4-6, the present embodiment is substantially identical with embodiment one, and difference is that groove 2 is for multiple, 3 at least two, tied silk hole; During use, the bottom surface of cushion block 1 and reinforcing bar to be supported are close to, and by tied silk by cushion block 1 and different bar connecting, realize fixing.Preferably, cushion block 1 and reinforcing bar are obliquely installed, namely the length direction of cushion block 1 and the length direction of reinforcing bar have an angle, and angle is less than 90 degree, such cushion block 1 just can while with many bar connecting, guarantee cushion block 1 stable connection.And multiple grooves 2 of cushion block 1 end face contribute to concrete passing through, in casting process, there will not be the hole of not building around cushion block 1, the thickness of steel bar cage protecting layer is unaffected, guarantees the watertightness of immersed tube tunnel.
In specific operation process, generally embodiment one and two kinds of cushion blocks 1 described in embodiment two are combinationally used, adopt the cushion block 1 of a groove 2 described in embodiment one at the base plate of reinforcing cage and top board place, the size of groove 2 preferably matches with reinforcing bar to be supported.For wall in the middle part of reinforced frame, generally adopt the cushion block 1 with multiple groove 2 described in embodiment two, this cushion block 1 simultaneously with many bar connecting, not easily loosen; And the groove 2 of cushion block 1 is outside, when building, concrete can flow through from groove 2 smoothly, can not form hole around cushion block 1.
As can be seen from the above embodiments, the present invention is by being set to inclined-plane by the side at groove 2 two ends, and cushion block 1 bottom surface is plane, end face is contacted with by bearing bar by groove 2, and pressure is from end face to the transmittance process of bottom surface, and unit area is stressed to be reduced gradually, cushion block 1 is not easily broken, supporting & stablizing; Wall in less for pressure, adopts the mounting means by cushion block 1 bottom surface contacts with reinforcing bar to fix cushion block 1, while realization supports, can not hinder concrete flowing, guarantee can fully be built around cushion block 1, there will not be pore; Cushion block 1 on middle wall tilts to install, cushion block 1 can simultaneously with multiple bar connecting, cushion block 1 not easily loosens, and tilts to install and be also conducive to reducing concrete flow resistance in casting process, guarantees to build fully.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (6)
1. a cushion block, it is characterized in that, comprise the end face be arranged on cushion block (1), bottom surface and multiple side, described bottom surface is plane, described end face is provided with groove (2), two sides being positioned at described groove (2) two ends are inclined-plane, and the top of two described sides all slopes inwardly.
2. cushion block as claimed in claim 1, it is characterized in that, this cushion block (1) is provided with tied silk hole (3), and described tied silk hole (3) is through hole.
3. cushion block as claimed in claim 2, it is characterized in that, described tied silk hole (3) is for one or more.
4. cushion block as claimed in claim 1 or 2, it is characterized in that, described groove (2) is for multiple, and multiple described groove (2) is parallel to each other.
5. cushion block as claimed in claim 3, it is characterized in that, described groove (2) is arc.
6. cushion block as claimed in claim 3, it is characterized in that, the junction of multiple described groove (2) is arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086120.2A CN104631710A (en) | 2015-02-16 | 2015-02-16 | Cushion block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086120.2A CN104631710A (en) | 2015-02-16 | 2015-02-16 | Cushion block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104631710A true CN104631710A (en) | 2015-05-20 |
Family
ID=53210905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086120.2A Pending CN104631710A (en) | 2015-02-16 | 2015-02-16 | Cushion block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104631710A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011055Y (en) * | 2007-01-26 | 2008-01-23 | 张家珍 | Concrete protecting pad used for reinforcing steel |
| WO2012054959A1 (en) * | 2010-10-27 | 2012-05-03 | Luke Aiden Knight | Spacer for supporting a reinforcing bar |
| CN202299145U (en) * | 2011-10-14 | 2012-07-04 | 胡平 | Concrete simulated glass fiber reinforced plastic pad |
| CN203626139U (en) * | 2013-11-11 | 2014-06-04 | 邓军委 | Location cushion block for construction reinforcements |
| CN204531190U (en) * | 2015-02-16 | 2015-08-05 | 中交第二航务工程局有限公司 | A kind of cushion block |
-
2015
- 2015-02-16 CN CN201510086120.2A patent/CN104631710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011055Y (en) * | 2007-01-26 | 2008-01-23 | 张家珍 | Concrete protecting pad used for reinforcing steel |
| WO2012054959A1 (en) * | 2010-10-27 | 2012-05-03 | Luke Aiden Knight | Spacer for supporting a reinforcing bar |
| CN202299145U (en) * | 2011-10-14 | 2012-07-04 | 胡平 | Concrete simulated glass fiber reinforced plastic pad |
| CN203626139U (en) * | 2013-11-11 | 2014-06-04 | 邓军委 | Location cushion block for construction reinforcements |
| CN204531190U (en) * | 2015-02-16 | 2015-08-05 | 中交第二航务工程局有限公司 | A kind of cushion block |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |