CN111608263A - Large-volume concrete continuous pouring digital monitoring management method and system - Google Patents
Large-volume concrete continuous pouring digital monitoring management method and system Download PDFInfo
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- CN111608263A CN111608263A CN202010523906.7A CN202010523906A CN111608263A CN 111608263 A CN111608263 A CN 111608263A CN 202010523906 A CN202010523906 A CN 202010523906A CN 111608263 A CN111608263 A CN 111608263A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Abstract
The invention discloses a large-volume concrete continuous pouring digital monitoring management method and system, and belongs to the technical field of concrete construction. Establishing a 3D model corresponding to a large-volume concrete construction area, and determining a symmetrical plane of the construction area; establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to a symmetrical plane in the 3D model, and mapping the monitoring coordinate points to an actual construction area to form actual monitoring points; and laying the temperature sensing optical fiber in the construction area, and enabling the temperature sensing optical fiber to penetrate through an actual monitoring point corresponding to the monitoring coordinate point. The temperature change data of the large-volume concrete in the pouring and curing process can be monitored in real time through the temperature sensing optical fiber, the pouring position of the concrete can be monitored, whether the temperature change in the curing process meets the preset construction standard parameters or not is judged, and the purpose of real-time monitoring and guidance of construction is achieved.
Description
Technical Field
The invention relates to the technical field of concrete construction, in particular to a digital monitoring management method and a digital monitoring management system for continuous pouring of mass concrete.
Background
The bulk concrete refers to a mass concrete of which the smallest dimension of concrete structure is not less than 1m, or a concrete which is expected to cause harmful crack generation due to temperature change and shrinkage caused by hydration of a cementitious material in the concrete. For the index of temperature control of large-volume concrete construction, the temperature rise value of a concrete casting on the basis of the mold-entering temperature is not more than 50 ℃, the temperature difference (not containing the concrete shrinkage equivalent temperature) of the inner surface of the concrete casting is not more than 25 ℃, the temperature reduction speed of the concrete casting is not more than 2 ℃/d, and the temperature difference between the surface of the concrete casting and the atmosphere when the heat preservation covering is removed is not more than 20 ℃.
When the concrete is poured, the whole layered continuous pouring or the pushing continuous pouring is carried out, the gap time is shortened, and the secondary layer concrete is poured before the initial setting of the front layer concrete. The mass concrete should be maintained in a heat-preserving and moisture-preserving way, and after pouring, the heat-preserving and maintaining work should be carried out, and the maintaining time is not less than 14 days. The construction of the mass concrete needs to be carried out under the guidance of monitoring data, and technical measures are adjusted in time. At present, in the concrete curing process, the concrete curing process mainly depends on the experience of workers and supervision, scientific means for monitoring the temperature of a concrete core area, the temperature of the surface of the concrete and the temperature difference with the external environment are lacked, and the quality problems of concrete cracks and the like are caused due to the lack of a software system for monitoring and early warning the hydration heat of the concrete in real time. Chinese patent document CN207526123U discloses a novel concrete intelligent temperature control device, which adopts the technical scheme of pre-embedding a plurality of temperature measuring tubes, wherein liquid medium layers are filled in the temperature measuring tubes; the temperature sensor is spliced in the liquid medium layer and is stuck on the inner wall of the temperature measuring pipe, the temperature sensor monitors the hydration heat of the concrete by being connected with the temperature controller through a wire, and the system has the following defects: the temperature measuring pipe cannot be buried deeply, and for large-scale concrete engineering, the intermediate temperature cannot be monitored, so that the large-volume concrete structure is not suitable; the number of temperature monitoring points is small, and if the temperature monitoring points are increased, temperature measuring pipes and the like need to be buried more, so that the concrete structure is damaged. Chinese patent document CN207351938U discloses a detection device for rapidly detecting hydration heat of high-performance concrete, which adopts a temperature sensor to monitor hydration heat of concrete at a single point, and has the following disadvantages: only single-point monitoring is available, and the concrete structure is not suitable for actual concrete engineering; the concrete curing can not be guided in real time because the alarm such as overheating cannot be informed in time.
Disclosure of Invention
The invention aims to provide a digital monitoring management method and a digital monitoring management system for continuous pouring of mass concrete, which are used for monitoring the temperature change of the concrete in the pouring and curing process and the pouring position of the concrete and judging whether the temperature change in the curing process meets the preset construction specification parameters.
In order to solve the technical problem, the invention provides a digital monitoring and management method for continuous casting of mass concrete, which comprises the following steps:
establishing a 3D model corresponding to a large-volume concrete construction area, and determining a symmetrical plane of the construction area;
establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to a symmetrical plane in the 3D model, and mapping the monitoring coordinate points to an actual construction area to form actual monitoring points;
laying a temperature sensing optical fiber in a construction area, and enabling the temperature sensing optical fiber to penetrate through an actual monitoring point corresponding to a monitoring coordinate point;
when concrete is poured, the temperature sensing optical fiber monitors the temperature of a construction area in real time, and the temperature value t acquired at a certain actual monitoring pointy1At a preset time interval △ T from this pointy1The previously acquired temperature value ty2Exceeds a preset difference value △ ty1Then, the point is recorded as being covered by concrete and the temperature value t is recordedy1And labeling the point in the 3D model as a point that has been covered by concrete;
during concrete curing, the temperature value t is acquired at two actual monitoring points which are symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, dividing the maintenance time into several time periodsxWhen the temperature value t is collected at a certain actual monitoring pointx1At a preset time interval △ T from this pointx1The previously acquired temperature value tx2Exceeds a preset difference value △ tx1And then, alarming.
Optionally, the establishing of the 3D model corresponding to the large-volume concrete construction area, and the determining of the symmetry plane of the construction area includes:
dividing a symmetrical structure part for a construction area of the symmetrical structure; and carrying out independent wiring treatment on a part of the asymmetrical construction area.
Optionally, the actual monitoring points are distributed in layers in the construction area:
when the actual construction thickness of the concrete is less than 2.5m, at least 3 layers of actual monitoring points are distributed,
at least 5 layers of actual monitoring points are distributed when the actual construction thickness of the concrete is 2.5 m-5 m,
when the actual construction thickness of the concrete is more than 5m, a layer of actual monitoring points is additionally arranged at least every time when the thickness is increased by one meter.
Optionally, the temperature sensing optical fiber is installed on a steel bar frame in a construction area; when the preset actual monitoring point position has no reinforcing frame, the auxiliary support is led out from the designed laid reinforcing frame in the concrete.
Optionally, when concrete is poured, the temperature value t when the actual monitoring point is covered by the concrete is recordedy1When the actual monitoring point is at the temperature t later than the temperature t acquired subsequentlyy1And when the comparison difference value exceeds 50 ℃, alarming.
Optionally, an actual monitoring point arranged between the surface of the concrete pouring body and the nearest internal steel bar is a surface layer monitoring point; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃, alarming.
The invention also provides a digital monitoring management system for continuous pouring of mass concrete, which comprises the following components:
the real-time data analysis processing unit is used for establishing a 3D model corresponding to the construction area, determining a symmetrical plane of the construction area, and establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to the symmetrical plane in the 3D model, so that the monitoring coordinate points can be mapped in the actual construction area to form actual monitoring points;
the temperature sensing optical fiber is paved in a large-volume concrete construction area and penetrates through a plurality of actual monitoring points in the construction area;
and the optical fiber sensing detection unit is used for receiving the optical signal sent by the temperature sensing optical fiber, analyzing the optical signal, acquiring temperature information data of each part in the temperature sensing optical fiber, and sending the temperature information data to the real-time data analysis and processing unit.
Optionally, when concrete is poured, the temperature sensing optical fiber monitors the temperature of the construction area in real time, and the temperature value t acquired at a certain actual monitoring pointy1At a preset time interval △ T from this pointy1The previously acquired temperature value ty2Exceeds a preset difference value △ ty1Then, record that the spot has been covered by concrete;
during concrete curing, the temperature value t acquired by the temperature sensing optical fiber at two actual monitoring points symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, dividing the maintenance time into several time periodsxThe temperature value t collected by the temperature sensing optical fiber at a certain actual monitoring pointx1At a preset time interval △ T from this pointx1The previously acquired temperature value tx2Exceeds a preset difference value △ tx1And then, alarming.
Optionally, when concrete is poured, the real-time data analysis processing unit records the temperature value t when the actual monitoring point is covered by the concretey1When the actual monitoring point is at the temperature t later than the temperature t acquired subsequentlyy1And when the compared difference value exceeds 50 ℃, alarming.
Optionally, an actual monitoring point arranged between the surface of the concrete pouring body and the nearest internal steel bar is a surface layer monitoring point; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and the real-time data analysis processing unit gives an alarm when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃.
The invention provides a digital monitoring management method and a digital monitoring management system for continuous pouring of mass concrete, wherein a 3D model corresponding to a mass concrete construction area is established, and a symmetrical plane of the construction area is determined; establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to a symmetrical plane in the 3D model, and mapping the monitoring coordinate points to an actual construction area to form actual monitoring points; and laying the temperature sensing optical fiber in the construction area, and enabling the temperature sensing optical fiber to penetrate through an actual monitoring point corresponding to the monitoring coordinate point. The temperature change data of the large-volume concrete in the pouring and curing process can be monitored in real time through the temperature sensing optical fiber, the pouring position of the concrete can be monitored, whether the temperature change in the curing process meets the preset construction standard parameters or not is judged, and the purpose of real-time monitoring and guidance of construction is achieved.
Drawings
Fig. 1 is a schematic view of the arrangement of the temperature sensing optical fiber in the present invention.
Detailed Description
The following describes a digital monitoring and management method and system for continuous casting of mass concrete in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
The invention provides a digital monitoring management method for continuous pouring of mass concrete, which comprises the following steps:
firstly, a 3D model corresponding to a large-volume concrete construction area is established, and a symmetrical plane of the construction area is determined. Most of large-volume concrete construction areas are symmetrical structures, and also have a part of asymmetrical construction structures, so that the symmetrical structure parts can be divided in the construction areas, and then the asymmetrical parts are subjected to independent wiring treatment.
Secondly, a plurality of monitoring coordinate points which are symmetrically distributed relative to the symmetrical plane are established in the 3D model, and the monitoring coordinate points are mapped to an actual construction area to form actual monitoring points. The actual monitoring points are distributed in the construction area in a layered mode: when the actual construction thickness of the concrete is less than 2.5m, at least 3 layers of actual monitoring points are distributed, when the actual construction thickness of the concrete is 2.5 m-5 m, at least 5 layers of actual monitoring points are distributed, and when the actual construction thickness of the concrete is more than 5m, at least one layer of actual monitoring points is additionally arranged every time one meter is increased.
Then, a temperature sensing optical fiber is laid in the construction area, and the temperature sensing optical fiber is made to pass through an actual monitoring point corresponding to the monitoring coordinate point. The temperature sensing optical fiber is arranged on the reinforcing steel frame, and when the reinforcing steel frame is not arranged at the preset position of the actual monitoring point, the auxiliary support can be led out from the designed and laid reinforcing steel frame in the concrete.
When concrete is poured, the temperature of a construction area is monitored in real time through the temperature sensing optical fiber, and the temperature value acquired at a certain actual monitoring point is ty1At a preset time interval △ Ty1The previously collected temperature value is ty2If t isy1And ty2Exceeds a preset difference value △ ty1Then, the point is recorded as being covered by concrete and the temperature value t is recordedy1And labeling the point in the 3D model as a point that has been covered by concrete; during concrete curing, the temperature value t is acquired at two actual monitoring points which are symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, prompting the monitoring manager to pay attention to the large-area excessive temperature difference in the symmetric areas, analyzing the reason, and dividing the maintenance time into several time intervalsxIn (1),the temperature value collected by a certain actual monitoring point is tx1At a preset time interval △ Tx1The previously collected temperature value is tx2If t isx1And tx2The difference exceeds the preset difference △ tx1And then, alarming. For example, if a certain period of time is a temperature rise period, the temperature rise value in unit time of each actual monitoring point is monitored, or if a certain period of time is a temperature fall period, the temperature fall value in unit time is monitored, and early warning is performed.
When concrete is poured, the temperature value t when the actual monitoring point is covered by the concrete is recordedy1When the actual monitoring point is at the temperature t later than the temperature t acquired subsequentlyy1And when the comparison difference value exceeds 50 ℃, alarming. Actual monitoring points arranged between the surface of the concrete pouring body and the nearest internal reinforcing steel bars are surface layer monitoring points; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃, alarming. In the concrete casting field, the distances from the surface and the bottom of a concrete casting to the internal steel bars closest to the surface and the bottom are generally 50 mm.
Example two
The invention provides a large-volume concrete continuous pouring digital monitoring management system which comprises a temperature sensing optical fiber, an optical fiber sensing detection unit and a real-time data analysis processing unit.
The real-time data analysis processing unit establishes a 3D model corresponding to the construction area, determines a symmetrical plane of the construction area, and establishes a plurality of monitoring coordinate points which are symmetrically distributed relative to the symmetrical plane in the 3D model, so that the monitoring coordinate points can be mapped in the actual construction area to form actual monitoring points; the temperature sensing optical fiber is laid in a large-volume concrete construction area 100, as shown in fig. 1, the temperature sensing optical fiber 1 penetrates through a plurality of actual monitoring points in the construction area, and the actual monitoring points are symmetrically arranged relative to the symmetrical plane of the construction area. A plurality of actual monitoring points are distributed in a construction area in a layered mode, and the actual monitoring points are arranged on the surface layer 101 of the concrete casting body, the inner layer 102 of the concrete casting body and the bottom layer 103 of the concrete casting body respectively. The optical fiber sensing detection unit is used for receiving the optical signal sent by the temperature sensing optical fiber, analyzing the optical signal, obtaining temperature information data of each part in the temperature sensing optical fiber, and sending the temperature information data to the real-time data analysis processing unit.
When concrete is poured, the temperature sensing optical fiber monitors the temperature of a construction area in real time, and the temperature value t acquired at a certain actual monitoring pointy1At a preset time interval △ T from this pointy1The previously acquired temperature value ty2Exceeds a preset difference value △ ty1Then, record that the spot has been covered by concrete; during concrete curing, the temperature value t acquired by the temperature sensing optical fiber at two actual monitoring points symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, dividing the maintenance time into several time periodsxThe temperature value t collected by the temperature sensing optical fiber at a certain actual monitoring pointx1At a preset time interval △ T from this pointx1The previously acquired temperature value tx2Exceeds a preset difference value △ tx1And then, alarming.
When concrete is poured, the real-time data analysis processing unit records the temperature value t when the actual monitoring point is covered by the concretey1When the actual monitoring point is at the temperature t later than the temperature t acquired subsequentlyy1And when the compared difference value exceeds 50 ℃, alarming.
Actual monitoring points arranged between the surface of the concrete pouring body and the nearest internal reinforcing steel bars are surface layer monitoring points; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and the real-time data analysis processing unit gives an alarm when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃. In the concrete casting field, the distances from the surface and the bottom of a concrete casting to the internal steel bars closest to the surface and the bottom are generally 50 mm.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A digital monitoring management method for large-volume concrete continuous pouring is characterized by comprising the following steps:
establishing a 3D model corresponding to a large-volume concrete construction area, and determining a symmetrical plane of the construction area;
establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to a symmetrical plane in the 3D model, and mapping the monitoring coordinate points to an actual construction area to form actual monitoring points;
laying a temperature sensing optical fiber in a construction area, and enabling the temperature sensing optical fiber to penetrate through an actual monitoring point corresponding to a monitoring coordinate point;
when concrete is poured, the temperature sensing optical fiber monitors the temperature of a construction area in real time, and the temperature value t acquired at a certain actual monitoring pointy1At a preset time interval △ T from this pointy1The previously acquired temperature value ty2Exceeds a preset difference value △ ty1Then, the point is recorded as being covered by concrete and the temperature value t is recordedy1And labeling the point in the 3D model as a point that has been covered by concrete;
during concrete curing, the temperature value t is acquired at two actual monitoring points which are symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, dividing the maintenance time into several time periodsxWhen the temperature value t is collected at a certain actual monitoring pointx1At a preset time interval △ T from this pointx1Previously collected temperature valuestx2Exceeds a preset difference value △ tx1And then, alarming.
2. The method for digital monitoring and management of continuous casting of mass concrete according to claim 1, wherein the step of establishing a 3D model corresponding to the mass concrete construction area and the step of determining the symmetry plane of the construction area comprises the steps of:
dividing a symmetrical structure part for a construction area of the symmetrical structure; and carrying out independent wiring treatment on a part of the asymmetrical construction area.
3. The digital monitoring management method for continuous casting of mass concrete according to claim 1, wherein the actual monitoring points are distributed in layers in a construction area:
when the actual construction thickness of the concrete is less than 2.5m, at least 3 layers of actual monitoring points are distributed,
at least 5 layers of actual monitoring points are distributed when the actual construction thickness of the concrete is 2.5 m-5 m,
when the actual construction thickness of the concrete is more than 5m, a layer of actual monitoring points is additionally arranged at least every time when the thickness is increased by one meter.
4. The digital monitoring and management method for continuous casting of mass concrete according to claim 1, wherein the temperature sensing optical fiber is installed on a steel bar frame in a construction area; when the preset actual monitoring point position has no reinforcing frame, the auxiliary support is led out from the designed laid reinforcing frame in the concrete.
5. The digital monitoring and management method for continuous casting of mass concrete according to claim 1, characterized in that during casting of concrete, the temperature value t of the actual monitoring point covered by concrete is recordedy1When the actual monitoring point is at the temperature t acquired subsequentlyRear endAnd ty1And when the comparison difference value exceeds 50 ℃, alarming.
6. The digital monitoring and management method for continuous casting of mass concrete according to claim 1, wherein actual monitoring points arranged from the surface of the concrete casting to the nearest internal steel bars are surface monitoring points; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃, alarming.
7. The utility model provides a digital control management system is pour in succession to bulky concrete which characterized in that includes:
the real-time data analysis processing unit is used for establishing a 3D model corresponding to the construction area, determining a symmetrical plane of the construction area, and establishing a plurality of monitoring coordinate points which are symmetrically distributed relative to the symmetrical plane in the 3D model, so that the monitoring coordinate points can be mapped in the actual construction area to form actual monitoring points;
the temperature sensing optical fiber is paved in a large-volume concrete construction area and penetrates through a plurality of actual monitoring points in the construction area;
and the optical fiber sensing detection unit is used for receiving the optical signal sent by the temperature sensing optical fiber, analyzing the optical signal, acquiring temperature information data of each part in the temperature sensing optical fiber, and sending the temperature information data to the real-time data analysis and processing unit.
8. The digital monitoring and management system for continuous casting of mass concrete according to claim 7, wherein the temperature sensing optical fiber monitors the temperature of the construction area in real time during the casting of the concrete, and the temperature value t is acquired at an actual monitoring pointy1At a preset time interval △ T from this pointy1The previously acquired temperature value ty2Exceeds a preset difference value △ ty1Then, record that the spot has been covered by concrete;
at the time of concrete curing, the temperatureTemperature value t acquired by sensing optical fiber at two actual monitoring points symmetrically distributed relative to the symmetry planekAnd tkAlarming when the difference exceeds △ T, dividing the maintenance time into several time periodsxThe temperature value t collected by the temperature sensing optical fiber at a certain actual monitoring pointx1At a preset time interval △ T from this pointx1The previously acquired temperature value tx2Exceeds a preset difference value △ tx1And then, alarming.
9. The digital monitoring and management system for continuous casting of mass concrete according to claim 7, wherein the real-time data analysis and processing unit records the temperature value t when the actual monitoring point is covered by concrete during concrete castingy1When the actual monitoring point is at the temperature t later than the temperature t acquired subsequentlyy1And when the compared difference value exceeds 50 ℃, alarming.
10. The digital monitoring and management system for continuous casting of mass concrete according to claim 7, wherein the actual monitoring points arranged from the concrete casting surface to the nearest internal steel bars are surface monitoring points; actual monitoring points arranged between the bottom surface of the concrete pouring body and the nearest internal reinforcing steel bars are bottom monitoring points; the actual monitoring points arranged between the surface layer monitoring points and the bottom layer monitoring points are inner layer monitoring points; and the real-time data analysis processing unit gives an alarm when the difference value between the temperature value t table acquired by a certain surface layer monitoring point and the temperature value t acquired by a certain inner layer monitoring point exceeds 25 ℃.
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| CN116188205A (en) * | 2023-05-04 | 2023-05-30 | 广东华厦工程顾问有限公司 | Intelligent analysis management and control system for building construction based on Internet of things technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116188205A (en) * | 2023-05-04 | 2023-05-30 | 广东华厦工程顾问有限公司 | Intelligent analysis management and control system for building construction based on Internet of things technology |
| CN116188205B (en) * | 2023-05-04 | 2023-08-01 | 广东华厦工程顾问有限公司 | Intelligent analysis management and control system for building construction based on Internet of things technology |
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