CN104612402A - System and method for efficiently controlling cracks of big cubage concrete base through circulating water - Google Patents
System and method for efficiently controlling cracks of big cubage concrete base through circulating water Download PDFInfo
- Publication number
- CN104612402A CN104612402A CN201410800476.3A CN201410800476A CN104612402A CN 104612402 A CN104612402 A CN 104612402A CN 201410800476 A CN201410800476 A CN 201410800476A CN 104612402 A CN104612402 A CN 104612402A
- Authority
- CN
- China
- Prior art keywords
- concrete
- water
- mass
- temperature adjustment
- cracks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a system and method for efficiently controlling cracks of a big cubage concrete base through circulating water and belongs to the technical field of structural engineering. The system for efficiently controlling the cracks of the big cubage concrete through circulating water is quite suitable for construction of a bottom plate of the big cubage concrete base. According to the method, a well casing dewatering well, a temperature regulating trough, a cooling tank and municipal drainage ditches are connected together through circulating water pipes, waste water in the well casing dewatering well is effectively utilized, residual heat on the surface of concrete is exchanged out through circulating water according to circulating water accumulation, the temperature difference between inside and outside of concrete is reduced, the possibility that temperature cracks of the big cubage concrete are generated is lowered greatly, and low carbon and environmental friendliness are achieved at the same time.
Description
Technical field
The present invention relates to a kind of system and the practice that utilize recirculated water control Volume Concrete Cracks, belong to construction engineering technical field.
Background technology
Along with the development of science and technology, concrete material rely on its easy construction, bearing capacity large, the advantage of the ornamental aspect such as by force can become the first-selection of modern project constructional materials (according to interrelated data display, the annual concrete use amount in the whole world be now more than 7,000,000,000 m at present
3).In the last few years, along with people are to the pursuit of using function, concrete structure just towards the comprehensive future development of bulky, complex structure, diverse in function, especially in massive structure, as fields such as concrete dam, road and bridge engineering, building constructions.But concrete is a kind of quasi-brittle material, be mainly used to bearing load pressure, its tension and shear resistance poor, inevitably can produce crack in the process of concreting and maintenance.Show according to correlation study data, what the crack in engineering structures was caused due to load reason probably accounts for 20%, and mostly 80% crack is in addition to be caused by factors such as temperature, contraction, inhomogeneous deformations.The thermal cracking that Hongqiao development zone, Western Shanghai Plaza occurs in the process of construction is especially up to 2320, and wherein crosscutting concern and deeper clefts just have 1608.These crack heavy damages globality of structure, reduce the lifting surface area of structure section, have also been changed stress and the constraints of concrete structure, make the even overall destruction of structure generation local failure, affect the normal use of structure, safety assurance and service life.Therefore, the massive concrete temperature cracks problem produced because hydration heat of cement temperature is excessive causes engineering circles personage to its attention further.
Traditional concrete in mass cool-down method is layered arrangement cooling water pipe before concreting, passes into cooling water afterwards in cooling water pipe, finally cooling water pipe is carried out grouting and closes.This way cooling-down effect is good, but there is larger problem, mainly only serving cooling effect to the concrete in 1m with this way, and obvious effect is not had substantially to the concrete beyond water pipe 1m, simultaneously owing to needing to arrange a large amount of cooling water pipes in advance, therefore operate comparatively complicated, cost also costly.Based on this, the present invention proposes a kind of principle simple, cheap, the recirculated water being easy to construct controls the system of massive concrete temperature cracks.Go by the waste water in well casing dewatering well is incorporated in cooling water recirculation system, temperature adjustment groove, cooling tank and municipal drainage ditch are unified into an organic whole, effectively can shorten the construction period, reduce construction cost, really accomplish green low-carbon environment-friendly, be highly suitable for the construction of volume of concrete foundation.
Summary of the invention
The object of the present invention is to provide a kind ofly have that principle is simple, cheap, easy construction, the advantages such as green low-carbon environment-friendly integration a kind of system utilizing recirculated water to control Volume Concrete Cracks, to effectively solve traditional cold but long in time limit in water for cooling method, cost is high, cannot accomplish the problems such as environmental protection.
For achieving the above object, the present invention adopts following technical scheme,
Utilize recirculated water to control a system for Volume Concrete Cracks, this system comprises well casing dewatering well, circulating water pipe, temperature adjustment groove, cooling tank, concrete in mass, municipal drainage ditch.
Specifically, well casing dewatering well is connected by circulating water pipe with temperature adjustment groove; Temperature adjustment groove 3 is symmetrically distributed in the two ends of cooling tank, and concrete in mass is placed in cooling tank inside; Temperature adjustment groove after cooling tank is connected with municipal drainage ditch by circulating water pipe.
Described well casing dewatering well is the initial starting point of reclaimed water system.Well casing dewatering well is arranged in concrete in mass side, number is determined according to the water requirement of concrete in mass, early stage, well casing dewatering well was used for the precipitation of foundation ditch, can be reclaimed water system after the precipitation such as later stage are complete and cooling water source is provided, a water pump is set bottom each well casing dewatering well, is mainly used in the lifting of cooling water in well casing dewatering well.
Described circulating water pipe is the pipe-line of reclaimed water system, and material can make cast iron or plastics.Starting point water pump from well casing dewatering well is guided to aboveground, is incorporated into afterwards in temperature adjustment groove, then to cooling tank, then arrive other end temperature adjustment groove, last terminal is to municipal drainage ditch.
Described temperature adjustment groove is the temperature control regulation measure of reclaimed water system.Outside base mass concrete both sides, respectively arrange a water storing recess, adopt common brick to build by laying bricks or stones, length, with concrete in mass length, uses 1:2.5 cement sand plaster afterwards, and temperature adjustment trench bottom arranges that two water pumps are to provide lifting kinetic energy equally.Because the cooling water temperature extracted out from well casing dewatering well is far below environment temperature, in order to reduce the temperature difference of cooling water and mass concrete surface, the cooling water of extraction need be carried out natural temp regulating process.
Described cooling tank is the cooling retaining measure of reclaimed water system.Build pond by laying bricks or stones all around along concrete in mass, common brick can be adopted to build by laying bricks or stones and use 1:2 cement sand plaster.By the retaining of cooling tank, the temperature heat of mass concrete surface is dissipated away in time by interchange of heat.
Described concrete in mass is the control object of reclaimed water system.Main finger concrete structural solid minimum geometries is not less than the large scale of construction concrete of 1m, or the variations in temperature that can cause because of cementitious material aquation in concrete and contraction and the concrete causing harmful cracks to produce.
Described municipal drainage ditch is the last terminal of reclaimed water system.Municipal drainage ditch mainly connects municipal drainage network, and the recirculated water therefore extracted from other end temperature adjustment groove finally flows to municipal drainage network by flowing to municipal drainage ditch, does not cause any pollution to surrounding environment.
Described a kind of system utilizing recirculated water to control Volume Concrete Cracks, its preparation method is as follows:
The first step, at concrete in mass, corner location place far away arranges well casing dewatering well, arranges one, water pump bottom dewatering well;
Second step, respectively arranges a temperature adjustment groove outside concrete in mass both sides, and adopt common brick to build by laying bricks or stones, length with concrete in mass length, and uses 1:2.5 cement sand plaster, and bottom arranges a water pump equally;
3rd step, covered with plastic film after casting of concrete in mass maintenance of sprinkling water, concrete side adopts double gunny bag sheet to cover moisturizing, along with concrete-face closure builds cooling tank by laying bricks or stones along concrete surface surrounding common brick simultaneously.
4th step, is joined together to form well casing dewatering well, temperature adjustment groove, cooling tank, municipal drainage ditch the system that a kind of recirculated water controls massive concrete temperature cracks by circulating water pipe.
A kind of system utilizing recirculated water to control Volume Concrete Cracks of the present invention is applicable to the construction of Large Concrete Base Plate.By circulating water pipe, well casing dewatering well, temperature adjustment groove, cooling tank, municipal drainage ditch are reasonably linked together, waste water in well casing dewatering well is utilized effectively, by constantly carrying out recirculated water retaining in mass concrete surface, make the waste heat of concrete surface be recycled the timely interchange of heat of water to go out, reduce temperature difference between inside and outside concrete, greatly reduce the possibility that massive concrete temperature cracks occurs, construction costs can be made to reduce by 50%, duration shortens 30%, really accomplishes green low-carbon environment-friendly simultaneously.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
Utilize recirculated water to control a system for Volume Concrete Cracks, this system comprises well casing dewatering well, circulating water pipe, temperature adjustment groove, cooling tank, concrete in mass, municipal drainage ditch; Go by the waste water in well casing dewatering well is incorporated in cooling water recirculation system, temperature adjustment groove, cooling tank and municipal drainage ditch are unified into an organic whole and form the system that a kind of recirculated water controls massive concrete temperature cracks.
Specifically, well casing dewatering well is connected by circulating water pipe with temperature adjustment groove; Temperature adjustment groove is symmetrically distributed in the two ends of cooling tank, and concrete in mass is placed in cooling tank inside; Temperature adjustment groove after cooling tank is connected with municipal drainage ditch by circulating water pipe.
Described well casing dewatering well is the initial starting point of reclaimed water system.Well casing dewatering well is arranged in concrete in mass side, number is determined according to the water requirement of concrete in mass, be generally 2 ~ 4, early stage, well casing dewatering well was mainly used in the precipitation of foundation ditch, can be reclaimed water system after the precipitation such as later stage are complete and cooling water source is provided, a 65WQ36-27-5.5 water pump is set bottom each well casing dewatering well, is mainly used in the lifting of cooling water in well casing dewatering well.
Described circulating water pipe is the pipe-line of reclaimed water system.Main employing DG150 header, internal diameter is 150mm, and material can make cast iron or plastics.Starting point water pump from well casing dewatering well is guided to aboveground, is incorporated into afterwards in temperature adjustment groove, then to cooling tank, then arrive other end temperature adjustment groove, last terminal is to municipal drainage ditch.
Described temperature adjustment groove is the temperature control regulation measure of reclaimed water system.The each layout in 0.8m place water storing recess outside base mass concrete both sides, common brick is adopted to build by laying bricks or stones, width is 500mm, the degree of depth is 700mm, length is with concrete in mass length, use 1:2.5 cement sand plaster afterwards, temperature adjustment trench bottom arranges that two 65WQ36-27-5.5 water pumps are to provide lifting kinetic energy equally.Because the cooling water temperature extracted out from well casing dewatering well is far below environment temperature, in order to reduce the temperature difference of cooling water and mass concrete surface, the cooling water of extraction need be carried out natural temp regulating process.
Described cooling tank is the cooling retaining measure of reclaimed water system.Build 120mm all around by laying bricks or stones along concrete in mass wide, the pond that 240mm is high, common brick can be adopted to build by laying bricks or stones, and (as the thick 1.8m of concrete in mass, it is high to build the thick 240mm of 120mm by laying bricks or stones; When concrete in mass thickness is greater than 2.0m, it is high to build the wide 350mm of 240mm by laying bricks or stones, and uses 1:2 cement sand plaster, (making 30mm radius arc corner protector at inner corner trim place).By the retaining of cooling tank, the temperature heat of mass concrete surface is dissipated away in time by interchange of heat.
Described concrete in mass is the control object of reclaimed water system.Main finger concrete structural solid minimum geometries is not less than the large scale of construction concrete of 1m, or the variations in temperature that can cause because of cementitious material aquation in concrete and contraction and the concrete causing harmful cracks to produce.
Described municipal drainage ditch is the last terminal of reclaimed water system.Municipal drainage ditch mainly connects municipal drainage network, and the recirculated water therefore extracted from other end temperature adjustment groove finally flows to municipal drainage network by flowing to municipal drainage ditch, does not cause any pollution to surrounding environment.
Described a kind of system utilizing recirculated water to control Volume Concrete Cracks, its preparation method is as follows:
The first step, at concrete in mass corner location far away, place establishes 600mm wide, the well casing dewatering well that 850mm is dark, arranges one, 65WQ36-27-5.5 water pump bottom dewatering well;
Second step, each layout in 0.8m place temperature adjustment groove outside concrete in mass both sides, adopts common brick to build by laying bricks or stones, wide 500mm, dark 700mm, length is with concrete in mass length, and use 1:2.5 cement sand plaster, bottom arranges a 65WQ36-27-5.5 water pump equally;
3rd step, covered with plastic film after casting of concrete in mass maintenance of sprinkling water, concrete side adopts double gunny bag sheet to cover moisturizing, along with concrete-face closure builds cooling tank by laying bricks or stones along concrete surface surrounding common brick simultaneously.When concrete in mass thickness is less than 2.0m, the width of building by laying bricks or stones of cooling tank is 120mm, is highly 240mm; When concrete in mass thickness is greater than 2.0m, building width by laying bricks or stones is 240mm, is highly 350mm, and uses 1:2 cement sand plaster, makees 30mm radius arc shape corner protector at inner corner trim place;
4th step, is joined together to form well casing dewatering well, temperature adjustment groove, cooling tank, municipal drainage ditch the system that a kind of recirculated water controls massive concrete temperature cracks by circulating water pipe.
Cooling water discarded in well casing dewatering well is guided in temperature adjustment groove by circulating water pipe and carries out natural temp regulating, the recirculated water that temperature adjustment is good is guided in the cooling tank laid in advance afterwards and go, the too much heat of mass concrete surface is reduced by circulation retaining, reach the effect controlling temperature difference between inside and outside concrete, then the water in cooling tank is guided in the temperature adjustment groove of other side, be discharged in city planting ductwork finally by municipal drainage ditch and go.This system principle is simple, easy to operate, the cheap control being applicable to very much massive concrete temperature cracks in construction.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.
Claims (8)
1. utilize recirculated water to control a system for Volume Concrete Cracks, it is characterized in that: this system comprises well casing dewatering well, circulating water pipe, temperature adjustment groove, cooling tank, concrete in mass, municipal drainage ditch;
Specifically, well casing dewatering well is connected by circulating water pipe with temperature adjustment groove; Temperature adjustment groove is symmetrically distributed in the two ends of cooling tank, and concrete in mass is placed in cooling tank inside; Temperature adjustment groove after cooling tank 4 is connected with municipal drainage ditch by circulating water pipe.
2. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described well casing dewatering well is the initial starting point of reclaimed water system; Well casing dewatering well is arranged in concrete in mass side, and number is determined according to the water requirement of concrete in mass, arranges a water pump bottom each well casing dewatering well.
3. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described circulating water pipe is the pipe-line of reclaimed water system, and material can make cast iron or plastics; Starting point water pump from well casing dewatering well is guided to aboveground, is incorporated into afterwards in temperature adjustment groove, then to cooling tank, then arrive other end temperature adjustment groove, last terminal is to municipal drainage ditch.
4. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described temperature adjustment groove is the temperature control regulation measure of reclaimed water system; Outside base mass concrete both sides, respectively arrange a water storing recess, adopt common brick to build by laying bricks or stones, length, with concrete in mass length, uses 1:2.5 cement sand plaster afterwards, and temperature adjustment trench bottom arranges that two water pumps are to provide lifting kinetic energy equally.
5. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described cooling tank is the cooling retaining measure of reclaimed water system; Build pond by laying bricks or stones all around along concrete in mass, common brick can be adopted to build by laying bricks or stones and use 1:2 cement sand plaster.
6. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described concrete in mass is the control object of reclaimed water system; Main finger concrete structural solid minimum geometries is not less than the large scale of construction concrete of 1m, or the variations in temperature that can cause because of cementitious material aquation in concrete and contraction and the concrete causing harmful cracks to produce.
7. a kind of system utilizing recirculated water to control Volume Concrete Cracks according to claim 1, is characterized in that: described municipal drainage ditch is the last terminal of reclaimed water system; Municipal drainage ditch mainly connects municipal drainage network.
8. utilize recirculated water to control a system practice for Volume Concrete Cracks, it is characterized in that: its preparation method is as follows,
The first step, at concrete in mass, corner location place far away arranges well casing dewatering well, arranges one, water pump bottom dewatering well;
Second step, respectively arranges a temperature adjustment groove outside concrete in mass both sides, and adopt common brick to build by laying bricks or stones, length with concrete in mass length, and uses 1:2.5 cement sand plaster, and bottom arranges a water pump equally;
3rd step, covered with plastic film after casting of concrete in mass maintenance of sprinkling water, concrete side adopts double gunny bag sheet to cover moisturizing, along with concrete-face closure builds cooling tank by laying bricks or stones along concrete surface surrounding common brick simultaneously;
4th step, is joined together to form well casing dewatering well, temperature adjustment groove, cooling tank, municipal drainage ditch the system that a kind of recirculated water controls massive concrete temperature cracks by circulating water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800476.3A CN104612402A (en) | 2014-12-21 | 2014-12-21 | System and method for efficiently controlling cracks of big cubage concrete base through circulating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800476.3A CN104612402A (en) | 2014-12-21 | 2014-12-21 | System and method for efficiently controlling cracks of big cubage concrete base through circulating water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104612402A true CN104612402A (en) | 2015-05-13 |
Family
ID=53147029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410800476.3A Pending CN104612402A (en) | 2014-12-21 | 2014-12-21 | System and method for efficiently controlling cracks of big cubage concrete base through circulating water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104612402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202316A (en) * | 2021-04-29 | 2021-08-03 | 中国水利水电第四工程局有限公司 | Three-dimensional temperature control system for bulk concrete in subtropical climate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914992A (en) * | 2010-08-16 | 2010-12-15 | 天津二十冶建设有限公司 | Water cooling temperature control method of mass concrete of blast furnace foundation |
| KR20120082559A (en) * | 2011-01-14 | 2012-07-24 | 현대건설주식회사 | Exchange type reduction device of concrete temperature gap by means of pipe cooling, exchange type reduction method using the device and structure using the method |
| JP2013185296A (en) * | 2012-03-05 | 2013-09-19 | Kajima Corp | Temperature control system |
| JP2014009530A (en) * | 2012-06-30 | 2014-01-20 | Hazama Ando Corp | Pipe cooling system and pipe cooling method |
| CN203616679U (en) * | 2013-11-29 | 2014-05-28 | 中交一公局厦门工程有限公司 | Cooling water circulating control device for mass concrete |
| CN104018673A (en) * | 2013-09-12 | 2014-09-03 | 江苏绘天建筑安装工程有限公司 | Extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology |
| CN204402050U (en) * | 2014-12-21 | 2015-06-17 | 中国中铁航空港建设集团有限公司 | A kind of recirculated water efficiently controls the system in mass concrete crack |
-
2014
- 2014-12-21 CN CN201410800476.3A patent/CN104612402A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914992A (en) * | 2010-08-16 | 2010-12-15 | 天津二十冶建设有限公司 | Water cooling temperature control method of mass concrete of blast furnace foundation |
| KR20120082559A (en) * | 2011-01-14 | 2012-07-24 | 현대건설주식회사 | Exchange type reduction device of concrete temperature gap by means of pipe cooling, exchange type reduction method using the device and structure using the method |
| JP2013185296A (en) * | 2012-03-05 | 2013-09-19 | Kajima Corp | Temperature control system |
| JP2014009530A (en) * | 2012-06-30 | 2014-01-20 | Hazama Ando Corp | Pipe cooling system and pipe cooling method |
| CN104018673A (en) * | 2013-09-12 | 2014-09-03 | 江苏绘天建筑安装工程有限公司 | Extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology |
| CN203616679U (en) * | 2013-11-29 | 2014-05-28 | 中交一公局厦门工程有限公司 | Cooling water circulating control device for mass concrete |
| CN204402050U (en) * | 2014-12-21 | 2015-06-17 | 中国中铁航空港建设集团有限公司 | A kind of recirculated water efficiently controls the system in mass concrete crack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202316A (en) * | 2021-04-29 | 2021-08-03 | 中国水利水电第四工程局有限公司 | Three-dimensional temperature control system for bulk concrete in subtropical climate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204357484U (en) | The drainage system of anti-tunnel invert constuction joint infiltration | |
| CN104018673A (en) | Extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology | |
| CN101994392A (en) | Large-volume concrete fast pouring and temperature control method | |
| CN103374926A (en) | Prefabricated assembly-type reinforced concrete inspection well | |
| CN104496321B (en) | A kind of tapping pipe and preparation method thereof | |
| CN210163948U (en) | Construction system for pouring post-cast strip of basement roof | |
| CN102756423A (en) | Maintenance device and maintenance method for prestressed centrifugal concrete hollow square pile water maintenance pile | |
| CN203034492U (en) | Reinforced concrete pipe ditch deformation seam | |
| CA2722098C (en) | Dam construction method utilizing freezing technique | |
| CN204059380U (en) | Deep-well precipitation well head well-sealing device in underground garage foundation ditch | |
| CN204402050U (en) | A kind of recirculated water efficiently controls the system in mass concrete crack | |
| CN104453236A (en) | Circulating water natural cooling system and method for controlling mass concrete cracks | |
| CN104790435A (en) | Post-subsidence pouring belt advancing waterstop impermeable concrete structure and construction technology thereof | |
| CN104032713B (en) | A kind of pressure diversion tunnel composite lining concrete anti-seepage structure and construction technology thereof | |
| CN206432677U (en) | A kind of tunnel all standing formula cable duct | |
| CN104612402A (en) | System and method for efficiently controlling cracks of big cubage concrete base through circulating water | |
| Zhang et al. | Merge concreting and crack control analysis of mass-concrete base slab of nuclear power plant | |
| CN203855937U (en) | Composite lining concrete impervious structure of pressure water diversion tunnel | |
| CN108360573B (en) | Device for preventing post-cast strip of basement floor from leaking and construction method thereof | |
| CN204402049U (en) | A kind of circulating water natural cooling system controlling Volume Concrete Cracks | |
| CN206503114U (en) | A kind of assembled protection dike | |
| CN102619254A (en) | Thermal insulation water supply well through geothermal method and construction method thereof | |
| CN201883422U (en) | Fabricated steel guide wall for underground continuous wall | |
| CN101280556A (en) | New and old roller compacted concrete joint anticracking technique | |
| CN1055146C (en) | Method for continuous dam construction of hydraulic compensation shrinking concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20150513 |
|
| RJ01 | Rejection of invention patent application after publication |