CN106906794A - A kind of dam armored concrete panel construction crack treatment construction technology - Google Patents
A kind of dam armored concrete panel construction crack treatment construction technology Download PDFInfo
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- CN106906794A CN106906794A CN201710164691.2A CN201710164691A CN106906794A CN 106906794 A CN106906794 A CN 106906794A CN 201710164691 A CN201710164691 A CN 201710164691A CN 106906794 A CN106906794 A CN 106906794A
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- panel
- dam
- crack
- deep trouth
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
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Abstract
The invention discloses a kind of dam armored concrete panel construction crack treatment construction technology, crack on dam can be repaired intact by the present invention using this method, dam after being repaired using this technique, later stage is observed by the monitoring instrument that face sets, it was found that the crack produced between the old and new's panel concrete, panel itself monitoring instrument observation data are normal, have no that there is abnormal deformation in the region.Reservoir does not also find to seep water in examination retaining to the region substantially to be increased, and illustrates that repair process is successful.
Description
Technical field
The present invention relates to a kind of dam armored concrete panel construction crack treatment construction technology, belong to dam panel and repair
Multiple field.
Background technology
Dam is block rivers ditch water flow with raising of water level or the water retaining structure of regulation flow.Reservoir can be formed, is lifted
High water level, regulated flow, concentration head, for flood control, water supply, irrigation, hydroelectric generation, improve shipping etc..The use longevity of dam
Life is very long, and because prolonged water and soil balance and riverbed water level are higher, dam is chronically at overload operation, and part dam goes out
, there is serious potential safety hazard in existing crack.
The content of the invention
It is an object of the present invention to provide a kind of dam armored concrete panel construction crack treatment construction technology, adopts
The crack on dam can be repaired intact with this method.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of dam armored concrete panel construction crack treatment construction technology, comprises the following steps：
S100：Distribution situation according to crack determines processing region, and processing region is rectangle, on the processing region periphery
Joint-cutting simultaneously arranges shock relieve vent；
S200：The processing region is divided into three bands, three bands are arranged in order along axis of dam direction, will first be located at
Two bands of both sides cut, and then cut the band at middle part；After the band of both sides is cut, the band at middle part can also be played
Certain supporting role, prevents upper panel from gliding, and retain middle part band can be more uniformly stressed, support effect is more
Plus stabilization.
S300：Double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing, and by the double-decker reinforcing bar
It is connected with former panel reinforcement welding, the casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and
Swelling agent is added in concrete；
S400：The band for being located at middle part is cut, double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing,
And the double-decker reinforcing bar is connected with former panel reinforcement welding；
S500：The casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, to prevent the old and new from mixing
Solidifying soil joint portion produces crack, and swelling agent is added in concrete；
S600：Monitor for monitor and repairing region is installed between two bands and between band and former panel
Device, the monitoring instrument is crack gauge etc.；
S700：Geomembrane is laid on new panel, by the tight phase of geomembrane on the geomembrane and former panel on new panel
Even, geomembrane is set up in the junction of new panel and former panel；Former panel is also to be equipped with geomembrane, by the soil on new panel
Geomembrane sealing connection on work film and former panel.
Preferably, in a kind of foregoing dam armored concrete panel construction crack treatment construction technology, step S100
Described in processing region cover more than 0.5 millimeter of crack, a diameter of 20-30 millimeters of the shock relieve vent.It is former in view of dam
The material of panel, is that 20-30 millimeters of damping effect is more preferable by the diameter design of shock relieve vent.
As one of which embodiment, a kind of foregoing dam armored concrete panel construction crack treatment construction
In technique, step S100 also includes following methods：The surrounding of the processing region of rectangle arranges four row's shock relieve vents, and same row's subtracts
Pitch of holes between adjacent two shock relieve vents in shake hole is equal to 150 millimeters, two adjacent shock relieve vents of the shock relieve vent of same row it
Between pitch of holes determine that dam panel of the invention is concrete slab, after tested concrete slab by the type of dam panel
Shock relieve vent pitch of holes be equal to 150 millimeters when damping effect it is optimal.
In order to prevent upper panel from gliding, a kind of foregoing dam armored concrete panel construction crack treatment construction work
In skill, in step S200, a band is often cut, the deep trouth produced by channel steel support, one end of channel-section steel contradicts the top of deep trouth
Portion, the other end contradicts the bottom of deep trouth.
In a kind of foregoing dam armored concrete panel construction crack treatment construction technology, under step S100 also includes
State method：By raggle, raked joint, epoxy resin mortar joint filling, the embedded grout nipple of the junction of the edges of two sheets of paper and overfall mouth, chemical grouting, quality examination
Operation processes 0.2 to 0.5 millimeter of crack.
In a kind of foregoing dam armored concrete panel construction crack treatment construction technology, it is characterised in that step
S100 also includes following methods：Dead-end fracture treatment is carried out to the crack brushing epoxy less than 0.2 millimeter.
Compared with prior art, the crack on dam can be repaired intact by the present invention using this method, using this technique
Dam after reparation, the later stage is observed by the monitoring instrument that face sets, and does not find the crack produced between the old and new's panel concrete, face
Intralamellar part monitoring instrument observation data are normal, have no that there is abnormal deformation in the region.Reservoir does not have in examination retaining to region yet
Being found infiltration substantially increases, and illustrates that repair process is successful.
Specific embodiment
Embodiments of the invention 1：
A kind of dam armored concrete panel construction crack treatment construction technology, comprises the following steps：
S100：Distribution situation according to crack determines processing region, and processing region is rectangle, on the processing region periphery
Joint-cutting simultaneously arranges shock relieve vent, specifically, the surrounding of the processing region of rectangle arranges four row's shock relieve vents, the shock relieve vent of same row
Pitch of holes between two adjacent shock relieve vents is equal to 150 millimeters；Ensure that the processing region of rectangle is covered more than 0.5 millimeter to split
Seam, a diameter of 20 millimeters of shock relieve vent；By raggle, raked joint, epoxy resin mortar joint filling, the embedded grout nipple of the junction of the edges of two sheets of paper and overfall mouth, change
Learn grouting, the crack of 0.2 to 0.5 millimeter of the operation treatment of quality examination；Crack brushing epoxy less than 0.2 millimeter is sealed
Close crack treatment；
S200：The processing region is divided into three bands, three bands are arranged in order along axis of dam direction, will first be located at
Two bands of both sides cut, and then cut the band at middle part, often cut a band, the deep trouth produced by channel steel support,
One end of channel-section steel contradicts the top of deep trouth, and the other end contradicts the bottom of deep trouth, and the band at middle part is finally cut again；
S300：Double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing, and by the double-decker reinforcing bar
It is connected with former panel reinforcement welding, the casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and
Swelling agent is added in concrete；
S400：The band for being located at middle part is cut, double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing,
And the double-decker reinforcing bar is connected with former panel reinforcement welding；
S500：The casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and in concrete
Addition swelling agent, only needs to the micro swelling agent of addition in concrete, improve the laminating degree of new panel and former panel, prevents
New panel and former panel support produce gap after air-drying；
S600：Monitor for monitor and repairing region is installed between two bands and between band and former panel
Device；
S700：Geomembrane is laid on new panel, by the tight phase of geomembrane on the geomembrane and former panel on new panel
Even, geomembrane is set up in the junction of new panel and former panel, although having carried out appropriate treatment between new panel and former panel,
But the weak area for producing crack is remained, therefore, setting up geomembrane in the junction of new panel and former panel, reduces the day product moon
Tired water and soil invasion and attack.
Embodiment 2：
A kind of dam armored concrete panel construction crack treatment construction technology, comprises the following steps：
S100：Distribution situation according to crack determines processing region, and processing region is rectangle, on the processing region periphery
Joint-cutting simultaneously arranges shock relieve vent, specifically, the surrounding of the processing region of rectangle arranges four row's shock relieve vents, the shock relieve vent of same row
Pitch of holes between two adjacent shock relieve vents is equal to 150 millimeters；Ensure that the processing region of rectangle is covered more than 0.5 millimeter to split
Seam, a diameter of 30 millimeters of shock relieve vent；By raggle, raked joint, epoxy resin mortar joint filling, the embedded grout nipple of the junction of the edges of two sheets of paper and overfall mouth, change
Learn grouting, the crack of 0.2 to 0.5 millimeter of the operation treatment of quality examination；Crack brushing epoxy less than 0.2 millimeter is sealed
Close crack treatment；
S200：The processing region is divided into three bands, three bands are arranged in order along axis of dam direction, will first be located at
Two bands of both sides cut, and then cut the band at middle part, often cut a band, the deep trouth produced by channel steel support,
One end of channel-section steel contradicts the top of deep trouth, and the other end contradicts the bottom of deep trouth, and the band at middle part is finally cut again, and the channel-section steel refers to
Be 25b I-shaped bracing members；
S300：Double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing, and by the double-decker reinforcing bar
It is connected with former panel reinforcement welding, the casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and
Swelling agent is added in concrete；
S400：The band for being located at middle part is cut, double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing,
And the double-decker reinforcing bar is connected with former panel reinforcement welding；
S500：The casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and in concrete
Addition swelling agent；
S600：Monitor for monitor and repairing region is installed between two bands and between band and former panel
Device；
S700：Geomembrane is laid on new panel, by the tight phase of geomembrane on the geomembrane and former panel on new panel
Even, geomembrane is set up in the junction of new panel and former panel.
Claims (6)
1. a kind of dam armored concrete panel construction crack treatment construction technology, it is characterised in that comprise the following steps：
S100：Distribution situation according to crack determines processing region, and processing region is rectangle, is cut on the processing region periphery
Stitch and arrange shock relieve vent；
S200：The processing region is divided into three bands, three bands are arranged in order along axis of dam direction, first will be positioned at both sides
Two bands cut；
S300：Arrange double-decker reinforcing bar after band is cut in the deep trouth for producing, and by the double-decker reinforcing bar with it is former
Slab reinforcement is welded to connect, and the casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and in coagulation
Swelling agent is added in soil；
S400：Then the band at middle part is cut, double-decker reinforcing bar is arranged after band is cut in the deep trouth for producing, and by institute
Double-decker reinforcing bar is stated to be connected with former panel reinforcement welding；
S500：The casting concrete in the deep trouth, the concrete grade for pouring is identical with former panel, and is added in concrete
Swelling agent；
S600：Monitoring instrument for monitor and repairing region is installed between two bands and between band and former panel；
S700：Geomembrane is laid on new panel, the geomembrane on the geomembrane and former panel on new panel is closely coupled,
Geomembrane is set up in the junction of new panel and former panel.
2. a kind of dam armored concrete panel construction crack treatment construction technology according to claim 1, its feature
It is that processing region described in step S100 covers more than 0.5 millimeter of crack, a diameter of 20-30 millimeters of the shock relieve vent.
3. a kind of dam armored concrete panel construction crack treatment construction technology according to claim 1 and 2, it is special
Levy and be, step S100 also includes following methods：The surrounding of the processing region of rectangle arranges four row's shock relieve vents, and same row's subtracts
Pitch of holes between two adjacent shock relieve vents of shake hole is equal to 150 millimeters.
4. a kind of dam armored concrete panel construction crack treatment construction technology according to claim 3, its feature
It is in step S200, often to cut a band, the deep trouth produced by channel steel support, one end of channel-section steel contradicts the top of deep trouth
Portion, the other end contradicts the bottom of deep trouth.
5. a kind of dam armored concrete panel construction crack treatment construction technology according to claim 4, its feature
It is that step S100 also includes following methods：By raggle, raked joint, epoxy resin mortar joint filling, the junction of the edges of two sheets of paper embedded grout nipple and overfall
Mouth, chemical grouting, the crack of 0.2 to 0.5 millimeter of the operation treatment of quality examination.
6. a kind of dam armored concrete panel construction crack treatment construction technology according to claim 5, its feature
It is that step S100 also includes following methods：Dead-end fracture treatment is carried out to the crack brushing epoxy less than 0.2 millimeter.
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| CN201710164691.2A CN106906794B (en) | 2017-03-20 | 2017-03-20 | A kind of dam armored concrete panel construction crack treatment construction technology |
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| CN201710164691.2A CN106906794B (en) | 2017-03-20 | 2017-03-20 | A kind of dam armored concrete panel construction crack treatment construction technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989394A (en) * | 2017-11-27 | 2018-05-04 | 中国电建集团成都勘测设计研究院有限公司 | A kind of method for limiting the development of storehouse surface distress in concrete |
| CN111648302A (en) * | 2020-06-16 | 2020-09-11 | 重庆天地人建设集团有限公司 | Construction process for treating explosion shell and crack of dam panel |
Citations (6)
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|---|---|---|---|---|
| FR2548244A1 (en) * | 1983-06-30 | 1985-01-04 | Beaulieu Denis | Improvement in the manufacture of shelves, slabs and other concrete structural elements, and product thus obtained |
| KR101082790B1 (en) * | 2011-04-12 | 2011-11-11 | (주)대한방수공사 | Leakage crack repair method on the slab steel-concrete structure |
| CN102691422A (en) * | 2012-06-16 | 2012-09-26 | 山西省交通科学研究院 | New-old concrete combining construction method at local repair section |
| JP5397050B2 (en) * | 2009-07-02 | 2014-01-22 | 株式会社大林組 | Aperture reinforcement structure and aperture reinforcement method |
| CN104294770A (en) * | 2014-09-17 | 2015-01-21 | 邵旭东 | Steel-concrete composite structure repair joint reinforcing structure and method |
| CN105735205A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal construction joint dislocation repairing method for concrete panel |
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2017
- 2017-03-20 CN CN201710164691.2A patent/CN106906794B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2548244A1 (en) * | 1983-06-30 | 1985-01-04 | Beaulieu Denis | Improvement in the manufacture of shelves, slabs and other concrete structural elements, and product thus obtained |
| JP5397050B2 (en) * | 2009-07-02 | 2014-01-22 | 株式会社大林組 | Aperture reinforcement structure and aperture reinforcement method |
| KR101082790B1 (en) * | 2011-04-12 | 2011-11-11 | (주)대한방수공사 | Leakage crack repair method on the slab steel-concrete structure |
| CN102691422A (en) * | 2012-06-16 | 2012-09-26 | 山西省交通科学研究院 | New-old concrete combining construction method at local repair section |
| CN104294770A (en) * | 2014-09-17 | 2015-01-21 | 邵旭东 | Steel-concrete composite structure repair joint reinforcing structure and method |
| CN105735205A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal construction joint dislocation repairing method for concrete panel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989394A (en) * | 2017-11-27 | 2018-05-04 | 中国电建集团成都勘测设计研究院有限公司 | A kind of method for limiting the development of storehouse surface distress in concrete |
| CN111648302A (en) * | 2020-06-16 | 2020-09-11 | 重庆天地人建设集团有限公司 | Construction process for treating explosion shell and crack of dam panel |
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| Publication number | Publication date |
|---|---|
| CN106906794B (en) | 2018-10-16 |
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