CN103882836A - Method and filling device for controlling sluice pier cracks - Google Patents
Method and filling device for controlling sluice pier cracks Download PDFInfo
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- CN103882836A CN103882836A CN201410071347.5A CN201410071347A CN103882836A CN 103882836 A CN103882836 A CN 103882836A CN 201410071347 A CN201410071347 A CN 201410071347A CN 103882836 A CN103882836 A CN 103882836A
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- mortar
- pier
- embedded groove
- stress
- gate
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Abstract
The invention relates to a method and a filling device for controlling sluice pier cracks. The method includes: arranging an embedded groove (3) at the position, corresponding to a pier (2), in a sluice bottom board (1), arranging steel bars (6) on the sluice bottom board (1) at the bottom of the embedded groove (3) vertically, filling the embedded groove (3) with acrylic emulsion mortar, crumb rubber mortar or crumb rubber and acrylic emulsion mixed mortar serving as a stress absorbing material (5), and then pouring pier concrete on the embedded groove (3). The filling device is provided with a tank (7) made of rubber, the tank (7) is filled with the acrylic emulsion mortar, crumb rubber mortar or crumb rubber and acrylic emulsion mixed mortar serving as the stress absorbing material (5), and prepared holes (8) for penetration of the steel bars (6) on the sluice bottom board (1) are formed at the bottom of the tank (7) and in the stress absorbing material (5). By the method and the filling device, stress constraint of the bottom board on the pier concrete is overcome, and the technical problem that a pier is prone to cracking is solved.
Description
Technical field
The invention belongs to water conservancy projects technical field, relate in particular to a kind of method and filling device of controlling 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.Gate pier crack has certain feature and regularity.Gate pier on batholith easily ftractures than the gate pier on soft base; When construction, base plate and gate pier are built more long more easily cracking interval time; First gate pier crack results from gate pier bottom, and along with time lengthening, crack is upwards development 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 filling device of controlling 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 the stress constraint of base plate to gate pier, control gate pier crack.Based on above-mentioned analysis, the object of the present invention is achieved like this: a kind of method of 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, on the gate floor of embedded groove bottom, reinforcing bar is vertically set, the one of mixing the third newborn mortar with the third newborn mortar or rubber aggregate mortar or rubber aggregate is filled in embedded groove as stress-absorbed material, then on embedded groove, builds pier concrete.Stress-absorbed material should have good mechanics and deformation performance, and the compressive strength in the 28 day length of time is 15-30Mpa, and the modulus of elasticity in the 28d days length of time is 3000Mpa-30000Mpa.For convenient construction, improve construction speed, stress-absorbed material can be made to filling device, its concrete scheme is: a kind of filling device of controlling Sluice Pier crack, it is characterized in that: this device is provided with the casing made from rubber, the one that in casing, filling the third newborn mortar or rubber aggregate mortar or rubber aggregate mix the third newborn mortar, as stress-absorbed material, is provided with the preformed hole that installs reinforcing bar on gate floor in bottom half and stress-absorbed material.When 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, on the gate floor of embedded groove bottom, reinforcing bar is vertically set, by be filled with the third newborn mortar or rubber aggregate mortar or rubber aggregate mix the third newborn mortar casing be set on the reinforcing bar on gate floor and be placed in embedded groove along preformed hole, 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 equates substantially with gate pier and gate floor.Be embedded in stress absorption layer material at gate floor, overcome the stress constraint of base plate to top gate pier, absorbed 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, has overcome the stress constraint of base plate to pier concrete, has solved the easily technical barrier of cracking of gate pier, improve the durability of gate pier, be conducive to the safe operation of sluice.
Brief description of the drawings
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 of controlling Sluice Pier crack, position at the interior corresponding gate pier 2 of gate floor 1 arranges embedded groove 3, embedded groove 3 degree of depth are 20-50cm, notch 4 areas of embedded groove 3 are identical with gate pier 2 floor spaces or slightly large, on the gate floor 1 of embedded groove 3 bottoms, reinforcing bar 6 is vertically set, the one of mixing the third newborn mortar with the third newborn mortar or rubber aggregate mortar or rubber aggregate is filled in embedded groove 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 15-30Mpa, and the modulus of elasticity in the 28d days length of time is 3000Mpa-30000Mpa.The portland cement of the third described newborn mortar 20.0-45.0% by weight percentage; The 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%; Described rubber aggregate mixes the portland cement of the third newborn mortar 40.0-60.0% by weight percentage; The 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%.While building gate floor, at corresponding gate pier place, the groove that the reserved degree of depth is 20-50cm, 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 built, remove masterplate in groove; Stress-absorbed material selects the third newborn mortar or rubber aggregate mortar or rubber aggregate to mix the one in the third newborn mortar; After mixing in mixer, in groove, build; Then build in the above pier concrete.For convenient construction, improve construction speed, stress-absorbed material can be made to filling device, its concrete scheme is: a kind of filling device of controlling Sluice Pier crack, it is characterized in that: this device is provided with the casing 7 made from rubber, the one that the casing 7 newborn mortar of interior filling third or rubber aggregate mortar or rubber aggregate mix the third newborn mortar, as stress-absorbed material 5, is provided with the preformed hole 8 that installs reinforcing bar 6 on gate floor 1 in casing 7 bottoms and stress-absorbed material 5.When 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 spaces, on the gate floor 1 of embedded groove 3 bottoms, reinforcing bar 6 is vertically set, by be filled with the third newborn mortar or rubber aggregate mortar or rubber aggregate mix the third newborn mortar casing 7 be set on the reinforcing bar 6 on gate floor 1 and be placed in embedded groove 3 along preformed hole 8, then on embedded groove 3, build pier concrete.
Claims (3)
1. control the method in Sluice Pier crack for one kind, 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 or slightly large with gate pier (2) floor space, on the gate floor (1) of embedded groove (3) bottom, reinforcing bar (6) is vertically set, the one of mixing the third newborn mortar with the third newborn mortar or rubber aggregate mortar or rubber aggregate is filled in embedded groove (3) as stress-absorbed material (5), then on embedded groove (3), build pier concrete, described stress-absorbed material (5) 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 28d days length of time is 3000Mpa-30000Mpa.
2. according to the method in control Sluice Pier claimed in claim 1 crack, it is characterized in that: the portland cement of the third described newborn mortar 20.0-45.0% by weight percentage; The 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%; Described rubber aggregate mixes the portland cement of the third newborn mortar 40.0-60.0% by weight percentage; The 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%.
3. control the filling device in Sluice Pier crack for one kind, it is characterized in that: this device is provided with the casing (7) made from rubber, the one that in casing (7), filling the third newborn mortar or rubber aggregate mortar or rubber aggregate mix the third newborn mortar is as stress-absorbed material (5), and in casing (7) bottom and stress-absorbed material, (5) are provided with the preformed hole (8) that installs the upper reinforcing bar (6) of gate floor (1).
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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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| 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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| CN103882836A true CN103882836A (en) | 2014-06-25 |
| CN103882836B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087881A (en) * | 2016-02-19 | 2016-11-09 | 河海大学 | A kind of precast concrete box-structure and cast-in-place concrete convolution Sluice Pier structure and construction technology thereof |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087881A (en) * | 2016-02-19 | 2016-11-09 | 河海大学 | A kind of precast concrete box-structure and cast-in-place concrete convolution Sluice Pier structure and construction technology thereof |
| 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 |
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| CN103882836B (en) | 2016-02-10 |
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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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