CN103882836B - A kind of method and filling device controlling Sluice Pier crack - Google Patents
A kind of method and filling device controlling Sluice Pier crack Download PDFInfo
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- CN103882836B CN103882836B CN201410071347.5A CN201410071347A CN103882836B CN 103882836 B CN103882836 B CN 103882836B CN 201410071347 A CN201410071347 A CN 201410071347A CN 103882836 B CN103882836 B CN 103882836B
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Abstract
The present invention relates to a kind of method and the filling device that control Sluice Pier crack, its method is: in gate floor (1), the position of corresponding gate pier (2) arranges embedded groove (3), the gate floor (1) of embedded groove (3) bottom vertically arranges reinforcing bar (6), be filled in embedded groove (3) by the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout as stress-absorbed material (5), then on embedded groove (3), pier concrete is built, described filling device is provided with the casing (7) made with rubber, the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout is filled as stress-absorbed material (5) in casing (7), in casing (7) bottom and stress-absorbed material, (5) are provided with the preformed hole (8) installing the upper reinforcing bar (6) of gate floor (1), instant invention overcomes the stress constraint of base plate to pier concrete, solve the technical barrier that gate pier easily ftractures.
Description
Technical field
The invention belongs to water conservancy projects technical field, particularly relate to a kind of method and the filling device that control Sluice Pier crack.
Background technology
Sluice Pier crack is a universal phenomenon, built or almost " do not split without pier " building sluice, and crack affects durability and the safe operation of sluice.Pier rehabilitation has certain feature and regularity.Gate pier on batholith is easier than the gate pier on soft base to ftracture; During construction, base plate and gate pier are built interval time and more longly more easily to be ftractureed; First pier rehabilitation results from bottom gate pier, and along with time lengthening, crack is upwards developed gradually.The main cause that gate pier produces crack is that the tensile stress that the variations in temperature after concrete setting produces is greater than concrete ultimate tensile strength.When the necessary condition of pier concrete generation thermal stresses is gradient of temperature, concrete is by Complete Bind build-in.
Summary of the invention
The object of this invention is to provide a kind of method and the filling device that control Sluice Pier crack.The present invention is based on the basic theories of stress absorbing layer in structural mechanics, one deck stress absorbing layer is set between gate pier and base plate, effectively absorbs the temperature deformation energy that pier concrete aquation produces, release temperature stress, reduce base plate to the stress constraint of gate pier, control pier rehabilitation.Based on above-mentioned analysis, the object of the present invention is achieved like this: a kind of method controlling Sluice Pier crack, in gate floor, the position of corresponding gate pier arranges embedded groove, the embedded groove degree of depth is 20-50cm, the notch area of embedded groove is identical with gate pier floor space or slightly large, gate floor bottom embedded groove vertically arranges reinforcing bar, be filled in embedded groove by the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout as stress-absorbed material, then on embedded groove, build pier concrete.Stress-absorbed material should have good mechanics and deformation performance, and the compressive strength in the 28 day length of time is the modulus of elasticity in 15-30Mpa, the 28d days length of time is 3000Mpa-30000Mpa.Conveniently construct, improve construction speed, stress-absorbed material can be made filling device, its concrete scheme is: a kind of filling device controlling Sluice Pier crack, it is characterized in that: this device is provided with the casing made with rubber, fill the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout in casing as stress-absorbed material, in bottom half and stress-absorbed material, be provided with the preformed hole installing reinforcing bar on gate floor.During use, first in gate floor, embedded groove is outputed in the position of corresponding gate pier, the notch area of embedded groove is identical with gate pier floor space or slightly larger, gate floor bottom embedded groove vertically arranges reinforcing bar, by be filled with acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout casing to be set on gate floor reinforcing bar along preformed hole on be placed in embedded groove, then on embedded groove, build pier concrete.Stress absorption layer material has larger deformability and good mechanical property, and modulus of elasticity is almost the 1/10-1/100 of gate pier and gate floor, and compressive strength is substantially equal with gate floor with gate pier.Be embedded in stress absorption layer material at gate floor, overcome the stress constraint of base plate to top gate pier, absorb by the thermogenetic temperature deformation energy of pier concrete aquation, avoid causing thermal stresses, effectively control Sluice Pier crack.
The present invention by arranging one deck stress absorbing layer between base plate and gate pier, stress-absorbed material embeds in gate floor, overcomes the stress constraint of base plate to pier concrete, solves the technical barrier that gate pier easily ftractures, improve the durability of gate pier, be conducive to the safe operation of sluice.
Accompanying drawing explanation
Fig. 1 is the structural representation of gate pier and gate floor in the present invention;
Fig. 2 is the structural representation of filling device in the present invention.
In figure, 1, gate floor, 2, gate pier, 3, embedded groove, 4, notch, 5, stress absorption layer material, 6, reinforcing bar, 7, casing, 8, preformed hole.
Detailed description of the invention
With reference to accompanying drawing, a kind of method controlling Sluice Pier crack, in gate floor 1, the position of corresponding gate pier 2 arranges embedded groove 3, embedded groove 3 degree of depth is 20-50cm, notch 4 area of embedded groove 3 is identical with gate pier 2 floor space or slightly large, gate floor 1 bottom embedded groove 3 vertically arranges reinforcing bar 6, is filled in embedded groove by the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout as stress-absorbed material 5, then on embedded groove 3, builds pier concrete.Stress-absorbed material 5 should have good mechanics and deformation performance, and the compressive strength in the 28 day length of time is the modulus of elasticity in 15-30Mpa, the 28d days length of time is 3000Mpa-30000Mpa.The portland cement of described acrylamide sand grout 20.0-45.0% by weight percentage; Third breast of 20-40.0%; The sand of 20.0-60.0%; The water reducing agent of 0-1.2%; The water proportioning of 5.0-15.0% forms, each component be combined into 100%; The portland cement of described rubber aggregate mortar 30.0-60.0% by weight percentage; The rubber powder of 30.0-45.0%; The sand of 0-10.0%; The water reducing agent of 0-1.2%; The water proportioning of 10.0-15.0% forms, each component be combined into 100%; The portland cement of described rubber aggregate mixing acrylamide sand grout 40.0-60.0% by weight percentage; Third breast of 20.0-30.0%; The rubber powder of 20.0-40.0%; The sand of 0-20.0%; The water reducing agent of 0.3-1.2%; The water proportioning of 5.0-10.0% forms, each component be combined into 100%.When building gate floor, at corresponding gate pier place, the reserved degree of depth is the groove of 20-50cm, and bottom land area is identical with gate pier floor space or slightly larger; With masterplate supporting preformed groove, avoid concreting in groove, treat that gate floor has been built, remove masterplate in groove; Stress-absorbed material selects the one in acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout; In mixer after mixing, build in groove; Then pier concrete is built in the above.Conveniently construct, improve construction speed, stress-absorbed material can be made filling device, its concrete scheme is: a kind of filling device controlling Sluice Pier crack, it is characterized in that: this device is provided with the casing 7 made with rubber, fill the one of acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout in casing 7 as stress-absorbed material 5, bottom casing 7 and in stress-absorbed material 5, be provided with the preformed hole 8 installing reinforcing bar 6 on gate floor 1.During use, first in gate floor, embedded groove 3 is outputed in the position of corresponding gate pier, the notch area of embedded groove 3 is identical or slightly larger with gate pier 2 floor space, gate floor 1 bottom embedded groove 3 vertically arranges reinforcing bar 6, by be filled with acrylamide sand grout or rubber aggregate mortar or rubber aggregate mixing acrylamide sand grout casing 7 to be set on gate floor 1 reinforcing bar 6 along preformed hole 8 on be placed in embedded groove 3, then on embedded groove 3, build pier concrete.
Claims (6)
1. one kind controls the method in Sluice Pier crack, comprise with acrylamide sand grout as stress-absorbed material, it is characterized in that: in gate floor (1), the position of corresponding gate pier (2) arranges embedded groove (3), embedded groove (3) degree of depth is 20-50cm, notch (4) area of embedded groove (3) is identical with gate pier (2) floor space, the gate floor (1) of embedded groove (3) bottom vertically arranges reinforcing bar (6), stress-absorbed material (5) i.e. acrylamide sand grout is filled in embedded groove (3), then on embedded groove (3), pier concrete is built, described stress-absorbed material (5) acrylamide sand grout should have good mechanics and deformation performance, the compressive strength in the 28 day length of time is 15-30Mpa, the modulus of elasticity in the 28 day length of time is 3000Mpa-30000Mpa.
2. according to the method in control Sluice Pier crack according to claim 1, it is characterized in that: be filled in embedded groove (3) as stress-absorbed material (5) with rubber aggregate mixing acrylamide sand grout.
3. according to the method in control Sluice Pier crack according to claim 1, it is characterized in that: the portland cement of described acrylamide sand grout 20.0-45.0% by weight percentage; Third breast of 20-40.0%; The sand of 20.0-60.0%; The water reducing agent of 0-1.2%; The water proportioning of 5.0-15.0% forms, each component be combined into 100%.
4. according to the method in control Sluice Pier crack according to claim 2, it is characterized in that: the portland cement of described rubber aggregate mixing acrylamide sand grout 40.0-60.0% by weight percentage; Third breast of 20.0-30.0%; The rubber powder of 20.0-40.0%; The sand of 0-20.0%; The water reducing agent of 0.3-1.2%; The water proportioning of 5.0-10.0% forms, each component be combined into 100%.
5. one kind controls the filling device in Sluice Pier crack, comprise with acrylamide sand grout as stress-absorbed material, it is characterized in that: this device is provided with the casing (7) made with rubber, fill stress-absorbed material (5) acrylamide sand grout in casing (7), in casing (7) bottom and stress-absorbed material (5), be provided with the preformed hole (8) installing the upper reinforcing bar (6) of gate floor (1).
6. according to the filling device in control Sluice Pier crack according to claim 5, it is characterized in that: casing (7) interior filled rubber gathers materials mixing acrylamide sand grout as stress-absorbed material (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071347.5A CN103882836B (en) | 2014-03-02 | 2014-03-02 | A kind of method and filling device controlling Sluice Pier crack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410071347.5A CN103882836B (en) | 2014-03-02 | 2014-03-02 | A kind of method and filling device controlling Sluice Pier crack |
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| Publication Number | Publication Date |
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| CN103882836A CN103882836A (en) | 2014-06-25 |
| CN103882836B true CN103882836B (en) | 2016-02-10 |
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| CN201410071347.5A Expired - Fee Related CN103882836B (en) | 2014-03-02 | 2014-03-02 | A kind of method and filling device controlling Sluice Pier crack |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087881B (en) * | 2016-02-19 | 2018-04-03 | 河海大学 | A kind of precast concrete box-structure and cast-in-place concrete convolution Sluice Pier structure and its construction technology |
| CN106480859B (en) * | 2016-09-27 | 2018-08-17 | 四川大学 | Parting formula gate pier and parting formula bridge pier |
| CN114250750A (en) * | 2021-12-31 | 2022-03-29 | 山东省水利科学研究院 | Can subdue assembled sluice structure in concrete crack |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044067A (en) * | 1989-01-13 | 1990-07-25 | 勒孔特·米歇尔 | Sealing facing and implementation method thereof that masonry structure is used |
| JPH06286688A (en) * | 1993-03-31 | 1994-10-11 | Nissan Kensetsu Kk | Method for building dock submerged for ship entering moat |
| CN101148856A (en) * | 2007-11-12 | 2008-03-26 | 徐培华 | Asphalt macadam stress absorption layer and construction method thereof |
| CN202466534U (en) * | 2012-03-15 | 2012-10-03 | 衡水橡胶股份有限公司 | Water-proof telescopic device |
-
2014
- 2014-03-02 CN CN201410071347.5A patent/CN103882836B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044067A (en) * | 1989-01-13 | 1990-07-25 | 勒孔特·米歇尔 | Sealing facing and implementation method thereof that masonry structure is used |
| JPH06286688A (en) * | 1993-03-31 | 1994-10-11 | Nissan Kensetsu Kk | Method for building dock submerged for ship entering moat |
| CN101148856A (en) * | 2007-11-12 | 2008-03-26 | 徐培华 | Asphalt macadam stress absorption layer and construction method thereof |
| CN202466534U (en) * | 2012-03-15 | 2012-10-03 | 衡水橡胶股份有限公司 | Water-proof telescopic device |
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Inventor after: Wang Keliang Inventor after: Liu Gang Inventor after: Zheng Maohai Inventor after: Xu Yunhai Inventor after: Liu Ling Inventor after: Xu Shangjie Inventor after: Song Fangfang Inventor after: Hu Tingzheng Inventor before: Wang Keliang Inventor before: Zheng Maohai Inventor before: Xu Yunhai Inventor before: Liu Ling Inventor before: Xu Shangjie Inventor before: Song Fangfang Inventor before: Hu Tingzheng |
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Granted publication date: 20160210 Termination date: 20190302 |