CN103696571B - The spray maintenance process of wall body structure and system - Google Patents
The spray maintenance process of wall body structure and system Download PDFInfo
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- CN103696571B CN103696571B CN201310746733.5A CN201310746733A CN103696571B CN 103696571 B CN103696571 B CN 103696571B CN 201310746733 A CN201310746733 A CN 201310746733A CN 103696571 B CN103696571 B CN 103696571B
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- 239000007921 spray Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000005507 spraying Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 230000036571 hydration Effects 0.000 claims description 9
- 238000006703 hydration reaction Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 210000003491 Skin Anatomy 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 230000001702 transmitter Effects 0.000 claims description 6
- 230000002045 lasting Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 210000001513 Elbow Anatomy 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 230000001340 slower Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
Abstract
The invention provides a kind of spray maintenance process and system of wall body structure, comprise the following steps 1) build and namely used Water spray, A, B, C survey mark is set and regularly surveys its Temperature numerical T
a, T
b, T
c; 2 accounting temperature gradient δ=| T
a-T
b|/| H
a-H
b|; 3 calculate t body of wall average temperature T
average t=(T
at+ T
bt+ T
ct)/3; Calculate rate of temperature fall Φ
on average fall=(T
average t2-T
average t1)/(t2-t1); 4) reduce when temperature gradient δ is greater than preset value or stop water spray; 5) as the average temperature T of body of wall
average tclose to or reach peak value, reduce injection flow rate; 6) cover apertured film at body of wall, the little water yield sprays it, as rate of temperature fall Φ
on average fallspray is stopped when being greater than preset value.Its beneficial effect is for being reached prevented wall body slit in real time, efficiently by the maximum intensification value of reduction hydro-thermalization, the reduction temperature difference, the temperature drop excessive velocities that reduces.
Description
Technical field
The invention belongs to technical field of civil engineering, be specifically related to a kind of spray maintenance process and system of wall body structure.
Background technology
Along with socio-economic development, the step of Development of China's Urbanization is more and more faster, and concrete wall is built to become and is seen everywhere, but on current a lot of building site, concrete wall surface occurs that the situation in crack is day by day serious.
The reason generally causing concrete wall to ftracture is: 1, concrete wall is in early days due to the release of hydration heat of cement, temperature can be caused to rise and to cause volume expansion, after hydration heat of cement rate of release slows down, cause concrete wall volume contraction because surface of wall heat radiation can cause temperature to decline; 2, the variations in temperature of body of wall is inconsistent along wall section, and surface of wall can produce external crack due to internal-external temperature difference; 3, the entirety cooling of concrete wall will be subject to the constraint of peripheral member as body of wall or basis with dry contraction, can not freely occur, thus shrinkage stress is produced in concrete wall, when shrinkage stress is greater than concrete tensile strength, the temperature shrinkage fracture running through body of wall namely can be produced.
The measure reducing mixed earth surface of wall crack mainly through: 1, reduce the highest aquation temperature rise in concrete wall as far as possible; 2, the internal-external temperature difference of body of wall is reduced; 3, reduce the rate of temperature fall of body of wall, these objects can be reached by correct body of wall maintenance process.
Following problem is there is in current building site: 1, current most body of wall maintenance is only maintenance of manually arbitrarily sprinkling water for the maintenance process of body of wall, but because body of wall is that vertical member does not have water storage function, simply water time that body of wall can be kept moistening is very short, therefore this maintenance process not only labor intensive, waste water resource, to the maintenance effect extreme difference of body of wall; Although 2, also have some automatic water jetting curing means at present, but these wet curing devices are all install to be attached on body of wall or wall form substantially, the time that sprinkler retains is not long, because when needs stripping or body of wall need to continue up to construct, these wet curing devices will be removed; 3, body of wall maintenance process at present does not all combine the control to body of wall internal-external temperature difference and rate of temperature fall.
Summary of the invention
The object of the present invention is to provide and now provide a kind of independent of outside body of wall and template, based on concrete wall insulation, the moisture-keeping maintaining method and system of green water saving, automatic spraying, it passes through the new concept-temperature gradient of introduction one, by measuring tempeature Grad at set intervals, compared with preset value by temperature gradient value, solve and when start maintenance of sprinkling water, how watering amount the problem such as determines.
Technical problem to be solved by this invention realizes by the following technical solutions:
(1), build formation concrete wall and start to spray by the template of water to the described concrete wall of clamping after treating concreting;
Three survey marks are set in described concrete wall, are labeled as respectively: A survey mark, B survey mark and C survey mark; The Temperature numerical of A survey mark, described B survey mark and described C survey mark described in Timing measurement respectively, and the Temperature numerical of described A survey mark, described B survey mark and described C survey mark is labeled as T respectively
a, T
band T
c, wherein, described A survey mark is for monitoring the skin temperature of described concrete wall, and described C survey mark is for monitoring the internal temperature of described concrete wall, and described B survey mark is between described A survey mark and described C survey mark;
(2), calculate the temperature gap of described A survey mark and described B survey mark, and by described temperature gap calculate temperature gradient δ: the δ between described A survey mark and described B survey mark=| T
a-T
b|/| H
a-H
b|, described H
aand H
bbe respectively described A survey mark and the one-tenth-value thickness 1/10 of described B survey mark on described concrete wall thickness direction;
(3) the average temperature T of concrete wall described in t, is calculated
average t: T
average t=(T
at+ T
bt+ T
ct)/3, described T
at,t
bt, T
ctbe respectively described A survey mark, described B survey mark and the described C survey mark Temperature numerical in t;
Calculate the average temperature cooling speed Ф of described concrete wall
on average fall: be provided with two moment point and be labeled as t1 and t2 respectively, by average temperature T
average t=(T
at+ T
bt+ T
ctthe formulae discovery of)/3 goes out the average temperature of t1 and t2, and is labeled as T respectively
average t1and T
average t2; By the average temperature T of described t1 and t2
average t1and T
average t2calculating the t1 moment is Ф to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1);
(4), at the heat of hydration initial stage, the aquation temperature rise in body of wall is reduced by spray water, the size of temperature gradient δ and a temperature gradient preset value between more described A survey mark and described B survey mark simultaneously, when described temperature gradient δ is less than or equal to described temperature gradient preset value, lasting spray water maintenance is carried out to described concrete wall, reduces the water yield of spraying when described temperature gradient δ is greater than described temperature gradient preset value or stop spray maintenance;
(5) the described average temperature T of body of wall, is obtained according to measurement described A survey mark, described B survey mark and described C survey mark temperature
average t, as the average temperature T of described concrete wall
average trise slowly and close to or when reaching peak value, now heat of hydration release heat starts to reduce gradually, has been in the heat of hydration later stage, by reducing water spray, in case major structure becomes too fast rate of temperature fall;
(6), after concrete setting, remove described concrete wall template, be equipped with the film in hole in concrete wall outer side covers, and continuation keeps the moistening little water yield of body of wall to spray facing to concrete wall surface, as the average temperature cooling speed Ф of monitoring body of wall
on average fallspray maintenance is stopped when being greater than a rate of temperature fall preset value.
Preferably, in described step (1), described A survey mark is arranged on any point position on the vertical section of the distance template surface 0cm to 2cm of described concrete wall, described B survey mark is arranged on any point position on the vertical section of described concrete wall distance template surface 10cm to 12cm, described C survey mark is arranged on any point position on described concrete wall body thickness mid point vertical section, and described vertical section is perpendicular to the ground.
Preferably, in described step (1), measured a T respectively every 3 minutes
anumerical value and T
bnumerical value.
Preferably, in described step (4), described temperature gradient preset value is 50 degrees Celsius/meter; In described step (6), described rate of temperature fall preset value is 3 degrees Celsius/day.
A kind of concrete wall structure automatic spray curing system, comprise: be arranged at concrete wall structure inner for measuring the Temperature measuring section of differing heights layer temperature, comprise: be arranged at the first temperature sensing unit of A survey mark, B survey mark and C survey mark, the second temperature sensing unit and the 3rd temperature sensing unit respectively, wherein, described A survey mark is for monitoring the skin temperature of described concrete wall, described C survey mark is for monitoring the inside center temperature of described concrete wall, and described B survey mark is between described A survey mark and described C survey mark; The temperature patrol inspection unit be connected with described first temperature sensing unit, described second temperature sensing unit and described 3rd temperature sensing unit, for detecting the temperature signal of described first temperature sensing unit, described second temperature sensing unit and described 3rd temperature sensing unit to obtain the Temperature numerical T of described A survey mark, described B survey mark and described C survey mark respectively
a, T
band T
c; The signal transmitter unit that the temperature signal obtained described temperature patrol inspection unit transmits; The automatic spraying device of concrete wall temperature is reduced for watering; The control part be connected with described automatic spraying device with described Temperature measuring section, described control part comprises: signal receiving unit, the Temperature numerical T that the signal transmitter unit for receiving in described Temperature measuring section sends
aand T
b; Computing unit, for the temperature gap that calculates the Temperature numerical of described A survey mark that described signal receiving unit receives and described B survey mark, and by described temperature gap calculate temperature gradient δ: the δ between described A survey mark and described B survey mark=| T
a-T
b|/| H
a-H
b|, described H
aand H
bbe respectively described A survey mark and the height value of described B survey mark in described concrete wall short transverse; Calculate the average temperature T of concrete wall described in t
average t=(T
at+ T
bt+ T
ct)/3, described T
at,t
bt,t
ctfor described A survey mark, described B survey mark and described C survey mark are in the Temperature numerical of t; Calculate by average temperature T
average t=(T
at+ T
bt+ T
ctt1 and t2 two moment point average temperature T that the formula of)/3 draws
average t1and T
average t2; And by the average temperature T of described t1 and t2
average t1and T
average t2calculating the t1 moment is Ф to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1); Control unit, for when described temperature gradient δ is greater than temperature gradient preset value, the average temperature T of described concrete wall
average trise slowly and close to or reach peak value time or the average temperature cooling speed Ф of monitoring body of wall
on average fallwhen being greater than a rate of temperature fall preset value, described control unit sends the control instruction reducing or stop spray water maintenance to described concrete wall to described automatic spraying device;
Described concrete wall structure automatic spray curing system also comprises the film being equipped with multiple aperture, for after concrete setting, after removing the template of described concrete wall, is overlying on outside described concrete wall.
Preferably, described automatic spraying device comprises: multiple sprinkler tip, the pipeline be connected with sprinkler tip, for supporting the supporting component of described pipeline, to the water facilities of described piped water supply, and for providing the water cell at water source to water facilities; Wherein, water cell be precipitation reservoir, on-the-spot automobile-washing groove, dewatering well collecting-tank, on-the-spot draining collecting-tank any one or a few.
Preferably, multiple described sprinkler tip is for arrange one at interval of 9m to 11m, and sprinkler tip is fixed on apart from beyond body of wall 2 meters being highly arbitrary height space position in 10 meters.
Preferably, described sprinkler tip be in 180 degree Arbitrary Rotation and water spray distance be the sprinkler tip of 10m to 15m.
Preferably, described water facilities is water pump.
Preferably, the aperture on described film is for arrange one at interval of 10cm, and the aperture of described aperture is 5mm.
Body of wall independence automatic spray maintenance process based on green water saving provided by the present invention and system, after concreting, namely start to spray facing to concrete wall template surface with big yield, reduce the aquation temperature rise in body of wall, simultaneously by the temperature at the fixed thickness place of temperature sensor measurement concrete wall, and the temperature gradient value calculated under this thickness, again this temperature gradient value and a temperature gradient preset value are compared, when temperature gradient value is greater than temperature gradient preset value, illustrate that the cooling of surface of wall is too fast, now need to allow surface of wall temperature recovery, way of the present invention is for reducing injection flow rate or stopping water spray, thus the temperature gradient reduced now, internal-external temperature difference is diminished.
Again according to measuring the average temperature T obtaining body of wall
average t, rise slowly when observing the inner average temperature of body of wall and reduce water spray close to when reaching peak value, preventing from causing too fast rate of temperature fall;
After removing wall form, cover the film be with holes in wall outer side, and continue to spray facing to concrete wall surface by the little water yield, keep the moistening of body of wall, reduce dry speed of shrinking development, with the rate of temperature fall Ф of monitoring body of wall
on average fallrate of temperature fall preset value must not be greater than.
By above-mentioned with monitor temperature Grad, average temperature T
average tand rate of temperature fall Ф
on average fallchange and change the measure of injection flow rate, body of wall internal-external temperature difference is excessive and rate of temperature fall is too fast to prevent concrete wall from being caused by hydro-thermal, also preventing the dry tack free of concrete wall by sprinkling water in a small amount after removing wall form, finally reaching and preventing wall body slit in real time, efficiently.
Accompanying drawing explanation
Fig. 1 is the measuring position schematic diagram of concrete wall structure A point, B point and C point;
Fig. 2 is the flow chart of concrete wall structure maintenance process;
Fig. 3 is the average temperature T of concrete wall structure maintenance process
average tthe functional arrangement of t numerical value change in time;
Fig. 4 is the structural representation of concrete wall structure curing system; And
Fig. 5 is the structure top view that automatic spraying device is arranged near concrete wall.
Detailed description of the invention
For the benefit of to the understanding of structure of the present invention, be described below in conjunction with drawings and Examples.
Shown in composition graphs 1, Fig. 1 is the measuring position schematic diagram of concrete wall A point and B point and C point, and Fig. 2 is the flow chart of concrete wall structure maintenance process.
As depicted in figs. 1 and 2, in a first embodiment, the invention provides a kind of concrete wall structure maintenance process, comprise the following steps:
S1, build and form concrete wall start to spray the template being held on described concrete wall with water after treating concreting, three survey marks are set respectively in concrete wall structure, be labeled as respectively: A survey mark, B survey mark and C survey mark
The Temperature numerical of A survey mark, B survey mark and C survey mark is measured in timing respectively, and the Temperature numerical of the A survey mark measured and B survey mark is labeled as T respectively
a, T
band T
c;
A survey mark and B survey mark are for monitoring concrete wall skin temperature, and C survey mark is for monitoring the internal temperature of concrete wall;
Wherein, A survey mark is arranged on any point position on the vertical section of the template surface 0cm to 2cm of concrete wall, B survey mark is arranged on any point position on the vertical section of described concrete wall template surface 10cm to 12cm, C survey mark is arranged on any point position on concrete wall body thickness mid point vertical section, and described vertical section is perpendicular to the ground.
In the present embodiment, the position of preferred A survey mark and B survey mark to be respectively within the left surface thickness of concrete wall template 10cm place within 2cm place and left surface thickness.
Respectively the temperature value measured at 10cm place within 2cm place within the thickness of concrete wall template left surface and left surface thickness is labeled as T
2cm and T
10cm.
In the present embodiment, preferably each interval time of measurement is three minutes, can make timely reaction according to this, reach best maintenance effect in the shorter time to surface temperature of concrete change.
S2, calculate the temperature gap of described A survey mark and described B survey mark, and calculate the temperature gradient γ between described A survey mark and described B survey mark by described temperature gap.Temperature gradient formula: γ=| T
a-T
b|/| H
a-H
b| in, H
aand H
bbe respectively the one-tenth-value thickness 1/10 on A survey mark and the thickness direction of B survey mark within described concrete wall structure template surface, in the present embodiment, H
aand H
bbe respectively 2cm and 10cm;
Every the T that five minutes measure
2cm numerical value and T
10cm numerical value, calculates T
2cm and T
10the temperature difference of cm, finally calculates temperature gradient γ now:
γ＝|T
2cm-T
10cm|/|2cm-10cm|；
S3, temperature according to t A survey mark, B survey mark and C survey mark, can calculate the average temperature T of concrete wall described in t
average t=(T
at+ T
bt+ T
ct)/3, wherein, T
at, T
bt, T
ctfor A survey mark, B survey mark and C survey mark are in the Temperature numerical of t;
Calculate the average temperature cooling speed Ф of described concrete wall
on average fall: be provided with two moment point and be labeled as t1 and t2 respectively, by average temperature T
average t=(T
at+ T
bt+ T
ctthe formulae discovery of)/3 goes out the average temperature of t1 and t2, and is labeled as T respectively
average t1and T
average t2;
And by the average temperature T of described t1 and t2
average t1and T
average t2show that the t1 moment is Ф to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1);
S4, after concreting, exported the control instruction of concrete wall being carried out to spray water maintenance to automatic spray portion 20 by control part, and automatically open the switch of water facilities 24, water sprays via the sprinkler tip 21 of pipeline 22 from the bottom surface being positioned at concrete wall both sides, carries out spray water to concrete wall.Namely start to spray with the described template surface of water to described concrete wall, reduce the aquation temperature rise in body of wall, compare the size of temperature gradient δ and a temperature gradient preset value between this moment A survey mark and B survey mark simultaneously.In the present embodiment, the temperature gradient preset value compared is state's scale value, and its temperature gradient is 50 degrees Celsius/meter.
Reduce the water yield of spraying when occurring that temperature gradient γ is greater than temperature gradient preset value or stop spray maintenance.
When existing temperature gradient γ is greater than temperature gradient preset value, illustrate that hydro-thermal causes the constant temperature of concrete wall inside to be elevated to a warning value, expand further for avoiding concrete wall internal-external temperature difference, so need the water yield or the stopping spray that reduce sprinkling, risen again in the top layer of concrete wall, for reduction temperature gradient magnitude, reduce, because heat up to lower the temperature with spray water temperature gradient value that acting in conjunction causes of the heat of hydration increases and the concrete wall internal-external temperature difference that causes, finally to reach the effect preventing concrete wall from ftractureing with this.
When temperature gradient γ is less than or equal to temperature gradient preset value, lasting spray water maintenance is carried out to described concrete wall.
Changed by real-time monitoring temperature, keep Current Temperatures gradient γ to be less than or equal to temperature gradient preset value and carry out continuing water spray, the internal water thermalization temperature of concrete wall can be made to reduce fast, thus reduce the highest aquation temperature rise in concrete wall as far as possible.
Fig. 3 is the average temperature T of concrete wall structure maintenance process
average tthe functional arrangement of t numerical value change in time.
S5, as shown in Figure 3, according to the described average temperature T measuring described A survey mark, described B survey mark and described C survey mark temperature and obtain body of wall this moment
average t, as the inner average temperature T of described concrete wall
average trise slowly and close to or reach peak value T
average maxtime, reduce water spray, in case major structure becomes too fast rate of temperature fall.
Because water temperature is fixing, and inner the reaction by hydro-thermalization of concrete wall can be persistently overheating, as the inner average temperature T of concrete wall
average trise slowly and close to or when reaching peak value, illustrates that the heat that hydro-thermalization discharges slowly is reducing, now reduce water spray, the rate of temperature fall that can prevent sprays water causes is too fast and the concrete wall that causes ftractures.
S6, remove described concrete wall template, be equipped with the film in hole in concrete wall outer side covers, and continuation keeps the moistening little water yield of body of wall to spray facing to concrete wall surface, as the rate of temperature fall Ф of monitoring body of wall
on average fallspray maintenance is stopped when being greater than a rate of temperature fall preset value.
Remove this concrete wall template, now concrete wall solidifies substantially, if still a large amount of watering can cause concrete wall internal-external temperature difference excessive, cause wall crazing, so be just equipped with the film in hole herein in concrete wall outer side covers, passing hole and enter a small amount of water of concrete wall, keeps moistening.
The preset value of rate of temperature fall with hour or day to calculate, in the present embodiment, rate of temperature fall preset value is 3 degrees Celsius/day.
Fig. 4 is the structural representation of concrete wall structure curing system.
In the second embodiment of the present invention, as shown in Figure 4, provide a kind of concrete wall structure curing system comprising concrete wall structure maintenance process, this concrete wall structure curing system comprises:
Being arranged at concrete wall structure inner for measuring the Temperature measuring section 10 of differing heights layer temperature, comprising: the first temperature sensing unit 11, second temperature sensing unit 12 and the 3rd temperature sensing unit 13 that are arranged at A survey mark, B survey mark and C survey mark respectively; The temperature patrol inspection unit 14 be connected with the first temperature sensing unit 11, second temperature sensing unit 12 and the 3rd temperature sensing unit 13, for detecting the temperature signal of the first temperature sensing unit 11, second temperature sensing unit 12 and the 3rd temperature sensing unit 13 to obtain the Temperature numerical T of A survey mark, B survey mark and C survey mark respectively
a, T
band T
c; The signal transmitter unit 15 that the temperature signal obtained temperature patrol inspection unit 14 transmits; Wherein, A survey mark and B survey mark are for monitoring the skin temperature of concrete wall 40, and C survey mark is for monitoring the inside center temperature of concrete wall 40;
The automatic spraying device 20 of concrete wall temperature is reduced for watering; And
The control part 30 be connected with automatic spraying device 20 with Temperature measuring section 10, control part 30 comprises:
Signal receiving unit 31, the Temperature numerical T that the signal transmitter unit 15 for receiving in Temperature measuring section 10 sends
aand T
b;
Computing unit 32, for: calculate the A survey mark that receives of communication unit and B survey mark temperature gap, and by temperature gap calculate temperature gradient δ: the δ between A survey mark and B survey mark=| T
a-T
b|/| H
a-H
b|, H
aand H
bbe respectively A survey mark and the one-tenth-value thickness 1/10 of B survey mark on the template thickness direction of concrete wall structure;
Calculate the average temperature T at t concrete wall
average t=(T
at+ T
bt+ T
ct)/3, T
at,t
bt, T
ctfor A survey mark, B survey mark and C survey mark are in the Temperature numerical of t;
Calculate by average temperature T
average t=(T
at+ T
bt+ T
ctt1 and t2 two moment point average temperature T that the formula of)/3 draws
average t1and T
average t2; And by the average temperature T of t1 and t2
average t1and T
average t2calculating the t1 moment is Ф to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1).
Control unit 33, for being greater than temperature gradient preset value at temperature gradient γ, as the average temperature T of concrete wall
average trise slowly and close to or when reaching peak value, and as the rate of temperature fall Ф of monitoring body of wall
on average fallwhen being greater than a rate of temperature fall preset value, go out to reduce concrete wall or stop the control instruction of spray water maintenance to automatic spray part device.
Wherein, automatic spraying device 20 comprises: multiple sprinkler tip 21, the pipeline 22 be connected with sprinkler tip, the supporting component 23 for supporting pipeline, the water facilities 24 to piped water supply and the water cell 25 at water source for providing to water facilities;
Fig. 5 is the structure top view that automatic spraying device is arranged near concrete wall.
As shown in Figure 5, in the present embodiment, multiple sprinkler tip 21 is arrange one at interval of any range of 9m to 11m, and each sprinkler tip 21 is fixed on apart from surperficial about the 2m of concrete wall 40 and is highly any locus in 10m.This sprinkler tip 21 is Arbitrary Rotation in 180 degree, and the distance of its water spray is the sprinkler tip 21 of 10m to 15m, and the water yield of adjustable spray water.
In the present embodiment, pipeline 22 is metallic conduit and is arranged on the ground beyond concrete wall 40 two meters, it connects water facilities 24 to obtain water source by one end of a main pipeline 221, the other end of main pipeline 221 is connected with two groups of secondary duct 222 by T-shaped elbow 26, two groups of secondary duct 222 extend to respectively between two parties via 90 degree of elbows 27 respectively and are parallel to the position of both sides concrete wall 40, and be 2.2 meters with each headwall body distance, its sprinkler tip 21 is arranged in two groups of secondary duct 222, supporting component 23 is arranged on below pipeline 22, fixed-piping 22.
Water cell 25 is precipitation reservoir, on-the-spot automobile-washing groove, dewatering well collecting-tank, on-the-spot draining collecting-tank any one or a few.
Water facilities 24 is water pump, for extracting the waste water in water cell, can save the use of tap water with this.
In the present embodiment, concrete wall structure curing system also comprises one can be arranged on the film being equipped with multiple aperture on body of wall, aperture on this film is to arrange one at interval of the distance of 10cm, and the aperture of aperture is 5mm, until concrete setting and after removing wall form, by a small amount of spray water on the film being equipped with multiple aperture covered on body of wall, water penetrates film via aperture and drenches on body of wall, keep the moistening of body of wall, thus prevent because concrete wall is dry and ftracture.
Body of wall independence automatic spray maintenance process based on green water saving provided by the present invention and system, after concreting, namely start to spray facing to concrete wall template surface with big yield, reduce the aquation temperature rise in body of wall, simultaneously by the temperature at the fixed thickness place of temperature sensor measurement concrete wall, and the temperature gradient value calculated under this thickness, again this temperature gradient value and a temperature gradient preset value are compared, when temperature gradient value is greater than temperature gradient preset value, illustrate that the cooling of surface of wall is too fast, now need to allow surface of wall temperature recovery, way of the present invention is for reducing injection flow rate or stopping water spray, thus the temperature gradient reduced now, internal-external temperature difference is diminished.
Again according to measuring the average temperature T obtaining body of wall
average t, rise slowly when observing the inner average temperature of body of wall and reduce water spray close to when reaching peak value, preventing from causing too fast rate of temperature fall;
After removing wall form, cover the film be with holes in wall outer side, and continue to spray facing to concrete wall surface by the little water yield, keep the moistening of body of wall, reduce dry speed of shrinking development, with the rate of temperature fall Ф of monitoring body of wall
on average fallrate of temperature fall preset value must not be greater than.
By above-mentioned with monitor temperature Grad, average temperature T
average tand rate of temperature fall Ф
on average fallchange and change the measure of injection flow rate, body of wall internal-external temperature difference is excessive and rate of temperature fall is too fast to prevent concrete wall from being caused by hydro-thermal, also preventing the dry tack free of concrete wall by sprinkling water in a small amount after removing wall form, finally reaching and preventing wall body slit in real time, efficiently.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection domain.
Claims (10)
1. a spray maintenance process for wall body structure, is characterized in that, comprise the following steps:
(1), build formation concrete wall and start to spray by the template of water to the described concrete wall of clamping after treating concreting;
Three survey marks are set in described concrete wall, are labeled as respectively: A survey mark, B survey mark and C survey mark; The Temperature numerical of A survey mark, described B survey mark and described C survey mark described in Timing measurement respectively, and the Temperature numerical of described A survey mark, described B survey mark and described C survey mark is labeled as T respectively
a, T
band T
c, wherein, described A survey mark is for monitoring the skin temperature of described concrete wall, and described C survey mark is for monitoring the internal temperature of described concrete wall, and described B survey mark is between described A survey mark and described C survey mark;
(2), calculate the temperature gap of described A survey mark and described B survey mark, and by described temperature gap calculate temperature gradient δ: the δ between described A survey mark and described B survey mark=| T
a-T
b|/| H
a-H
b|, described H
aand H
bbe respectively described A survey mark and the one-tenth-value thickness 1/10 of described B survey mark on described concrete wall thickness direction;
(3) the average temperature T of concrete wall described in t, is calculated
average t: T
average t=(T
at+ T
bt+ T
ct)/3, described T
at, T
bt, T
ctbe respectively described A survey mark, described B survey mark and the described C survey mark Temperature numerical in t;
Calculate the average temperature cooling speed Φ of described concrete wall
on average fall: be provided with two moment point and be labeled as t1 and t2 respectively, by average temperature T
average t=(T
at+ T
bt+ T
ctthe formulae discovery of)/3 goes out the average temperature of t1 and t2, and is labeled as T respectively
average t1and T
average t2; By the average temperature T of described t1 and t2
average t1and T
average t2calculating the t1 moment is Φ to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1);
(4), at the heat of hydration initial stage, the aquation temperature rise in body of wall is reduced by spray water, the size of temperature gradient δ and a temperature gradient preset value between more described A survey mark and described B survey mark simultaneously, when described temperature gradient δ is less than or equal to described temperature gradient preset value, lasting spray water maintenance is carried out to described concrete wall, reduces the water yield of spraying when described temperature gradient δ is greater than described temperature gradient preset value or stop spray maintenance;
(5) the described average temperature T of body of wall, is obtained according to measurement described A survey mark, described B survey mark and described C survey mark temperature
average t, as the average temperature T of described concrete wall
average trise slowly and close to or when reaching peak value, now heat of hydration release heat starts to reduce gradually, has been in the heat of hydration later stage, by reducing water spray, in case major structure becomes too fast rate of temperature fall;
(6), after concrete setting, remove the template of described concrete wall, be equipped with the film in hole in concrete wall outer side covers, and continuation keeps the moistening little water yield of body of wall to spray facing to concrete wall surface, as the average temperature cooling speed Φ of monitoring body of wall
on average fallspray maintenance is stopped when being greater than a rate of temperature fall preset value.
2. the spray maintenance process of wall body structure according to claim 1, it is characterized in that, in described step (1), described A survey mark is arranged on any point position on the vertical section of the distance template surface 0cm to 2cm of described concrete wall, described B survey mark is arranged on any point position on the vertical section of described concrete wall distance template surface 10cm to 12cm, described C survey mark is arranged on any point position on described concrete wall body thickness mid point vertical section, and described vertical section is perpendicular to the ground.
3. the spray maintenance process of wall body structure according to claim 1, is characterized in that, in described step (1), measures a T respectively every 3 minutes
anumerical value and T
bnumerical value.
4. the spray maintenance process of wall body structure according to claim 1, is characterized in that, in described step (4), described temperature gradient preset value is 50 degrees Celsius/meter; In described step (6), described rate of temperature fall preset value is 3 degrees Celsius/day.
5. realize a concrete wall structure automatic spray curing system for the spray maintenance process of the wall body structure in claim 1-4 described in any one, it is characterized in that, described concrete wall structure automatic spray curing system comprises:
Be arranged at concrete wall structure inner for measuring the Temperature measuring section of differing heights layer temperature, comprise: be arranged at the first temperature sensing unit of A survey mark, B survey mark and C survey mark, the second temperature sensing unit and the 3rd temperature sensing unit respectively, wherein, described A survey mark is for monitoring the skin temperature of described concrete wall, described C survey mark is for monitoring the inside center temperature of described concrete wall, and described B survey mark is between described A survey mark and described C survey mark; The temperature patrol inspection unit be connected with described first temperature sensing unit, described second temperature sensing unit and described 3rd temperature sensing unit, for detecting the temperature signal of described first temperature sensing unit, described second temperature sensing unit and described 3rd temperature sensing unit to obtain the Temperature numerical T of described A survey mark, described B survey mark and described C survey mark respectively
a, T
band T
c; The signal transmitter unit that the temperature signal obtained described temperature patrol inspection unit transmits;
The automatic spraying device of concrete wall temperature is reduced for watering;
The control part be connected with described automatic spraying device with described Temperature measuring section, described control part comprises:
Signal receiving unit, the Temperature numerical T that the signal transmitter unit for receiving in described Temperature measuring section sends
aand T
b; Computing unit, for the temperature gap that calculates the Temperature numerical of described A survey mark that described signal receiving unit receives and described B survey mark, and by described temperature gap calculate temperature gradient δ: the δ between described A survey mark and described B survey mark=| T
a-T
b|/| H
a-H
b|, described H
aand H
bbe respectively described A survey mark and the one-tenth-value thickness 1/10 of described B survey mark on described concrete wall template thickness direction; Calculate the average temperature T of concrete wall described in t
average t=(T
at+ T
bt+ T
ct)/3, described T
at, T
bt, T
ctfor described A survey mark, described B survey mark and described C survey mark are in the Temperature numerical of t; Calculate by average temperature T
average t=(T
at+ T
bt+ T
ctt1 and t2 two moment point average temperature T that the formula of)/3 draws
average t1and T
average t2; And by the average temperature T of described t1 and t2
average t1and T
average t2calculating the t1 moment is Φ to the average temperature cooling speed of t2 moment body of wall
on average fall=(T
average t2-T
average t1)/(t2-t1); Control unit, for when described temperature gradient δ is greater than temperature gradient preset value, the average temperature T of described concrete wall
average trise slowly and close to or reach peak value time or the average temperature cooling speed Φ of monitoring body of wall
on average fallwhen being greater than a rate of temperature fall preset value, described control unit sends the control instruction reducing or stop spray water maintenance to described concrete wall to described automatic spraying device;
Described concrete wall structure automatic spray curing system also comprises the film being equipped with multiple aperture, for after concrete setting, after removing the template of described concrete wall, is overlying on outside described concrete wall.
6. concrete wall structure automatic spray curing system according to claim 5, is characterized in that,
Described automatic spraying device comprises: multiple sprinkler tip, the pipeline be connected with sprinkler tip, for supporting the supporting component of described pipeline, to the water facilities of described piped water supply, and for providing the water cell at water source to water facilities;
Wherein, water cell be precipitation reservoir, on-the-spot automobile-washing groove, dewatering well collecting-tank, on-the-spot draining collecting-tank any one or a few.
7. concrete wall structure automatic spray curing system according to claim 6, it is characterized in that, multiple described sprinkler tip for arrange one at interval of 9m to 11m, and sprinkler tip is fixed on beyond body of wall 2m, be highly arbitrary locus place within 10 meters.
8. concrete wall structure automatic spray curing system according to claim 6, is characterized in that, described sprinkler tip be in 180 degree Arbitrary Rotation and water spray distance be the sprinkler tip of 10m to 15m.
9. concrete wall structure automatic spray curing system according to claim 6, is characterized in that, described water facilities is water pump.
10. concrete wall structure automatic spray curing system according to claim 5, is characterized in that, the aperture on described film is for arrange one at interval of 10cm, and the aperture of described aperture is 5mm.
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| CN104389429B (en) * | 2014-10-15 | 2016-05-18 | 中建四局第六建筑工程有限公司 | Intelligent landscape style spray curing concrete device and curing concrete method thereof |
| CN105822068B (en) * | 2015-01-05 | 2017-12-29 | 五冶集团上海有限公司 | Ultralong thin walled concrete walls under hot environment pour and maintenance process |
| CN105678971A (en) * | 2016-03-12 | 2016-06-15 | 华北电力大学（保定） | wall condensation monitoring device |
| CN108385528B (en) * | 2016-09-18 | 2019-06-28 | 山东省交通科学研究院 | A kind of application method of low temperature season pier stud concrete heat-insulating health preserving equipment |
| CN106677521A (en) * | 2016-11-23 | 2017-05-17 | 中国水利水电科学研究院 | Formworks for concrete pouring and with an atomizing device and storehouse surface temperature controlling system applying same |
| CN106766861A (en) * | 2017-03-22 | 2017-05-31 | 河南鑫海电力设备有限公司 | A kind of insulator mud section dries cover piece |
| CN107806249B (en) * | 2017-09-28 | 2019-06-25 | 武汉大学 | Complex environment concrete sprays moisture-keeping maintaining process real-time control method |
| CN109958290A (en) * | 2019-04-19 | 2019-07-02 | 辽宁工程技术大学 | A kind of full-automatic autotrophy protecting system of building green |
| CN114263360B (en) * | 2021-12-31 | 2023-03-17 | 中国港湾工程有限责任公司 | Concrete structure maintenance device and maintenance method thereof |
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| JP2001107563A (en) * | 1999-10-06 | 2001-04-17 | Kubota Kensetsu Kk | Method for curing concrete on site |
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