CN114517481A - Intelligent monitoring method, device and system for grouting reinforcement and lifting of existing building and computer readable storage medium - Google Patents
Intelligent monitoring method, device and system for grouting reinforcement and lifting of existing building and computer readable storage medium Download PDFInfo
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- CN114517481A CN114517481A CN202011313982.1A CN202011313982A CN114517481A CN 114517481 A CN114517481 A CN 114517481A CN 202011313982 A CN202011313982 A CN 202011313982A CN 114517481 A CN114517481 A CN 114517481A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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Abstract
The application provides an intelligent monitoring method, device and system for grouting reinforcement and lifting of an existing building and a computer readable storage medium. The method comprises the following steps: acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process; calculating the lifting height change speed of the building according to the height data; if the height data is in a decreasing trend, outputting a stop signal to the grouting pump to stop the grouting pump; if the height data is in the ascending trend and the height data value is lower than the preset height value, outputting a speed adjusting signal to a grouting pump according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump according to the height data, the height change speed and the grouting pressure data to change the proportioning of the grouting liquid, so that the solidification speed of the grouting liquid is changed; and if the numerical value of the height data is equal to or greater than the preset height numerical value, outputting a stop signal to the grouting pump so as to stop the grouting pump.
Description
Technical Field
The application relates to the technical field of building grouting reinforcement lifting, in particular to an intelligent monitoring method and system for existing building grouting reinforcement lifting.
Background
At present, in developing countries, due to geological exploration reasons or non-standardization of building construction and management, or under the condition that the engineering quality and safety are not ensured, the built building body is easy to sink.
In order to solve the technical problems, a grouting reinforcement deviation rectifying method applied to a high-rise existing building structure is developed, namely grouting liquid is injected below a building through a grouting pipe through a grouting pump so as to realize reinforcement and lifting of the building. When the building needs to be reinforced and lifted, a plurality of grouting reinforcement lifting points are selected, and reinforcement and rectification of the building are completed through multi-point grouting. Generally, a constructor needs to adjust multiple details in the reinforcement and lifting process according to specific conditions of a reinforcement and lifting site, such as data measurement, adjustment of a grouting pump, adjustment of grouting liquid, drilling depth of a grouting pipe, non-operation of different grouting reinforcement and lifting points and the like, so as to ensure construction quality of grouting reinforcement and lifting. The factors influencing the grouting, reinforcing and lifting construction quality are many, and meanwhile, various differences exist among the influences of each factor, so that the unified monitoring and management of a construction site are difficult to realize.
Disclosure of Invention
In order to improve the automatic monitoring level of the existing building grouting reinforcement lifting construction site, the application aims to provide an intelligent monitoring method, device and system for grouting reinforcement lifting of an existing building and a computer readable storage medium.
In a first aspect, the application aims to provide an intelligent monitoring method for grouting, reinforcing and lifting of an existing building, and the method comprises the following steps:
acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
calculating the lifting height change speed of the building according to the height data;
if the height data is in a decreasing trend, outputting a stop signal to the grouting pump to stop the grouting pump;
if the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to a grouting pump according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump according to the height data, the height change speed and the grouting pressure data to change the proportioning of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and if the numerical value of the height data is equal to or greater than the preset height numerical value, outputting a stop signal to the grouting pump to stop the grouting pump.
By adopting the technical scheme, the building grouting reinforcement lifting is generally realized by simultaneously grouting at multiple points, the building is simultaneously lifted at multiple points, and simultaneously each reinforcement lifting point needs to be provided with a grouting pipe and multiple grouting pumps, so that the balance problem of grouting pressure between every two points in the multi-point lifting process, the integral lifting rate problem of the building, the grouting reinforcement lifting control problem of every point and the like need to be considered, the phenomenon that different personnel are required to collect and analyze different data in the reinforcement lifting field is caused, communication and calculation among different personnel cause delay or errors in control of every aspect of the reinforcement lifting field, and the quality and safety of the reinforcement lifting of the building are seriously influenced. In the scheme, the automatic intelligent control of various grouting pumps on the reinforcing and lifting site is realized by acquiring the height data and the grouting pressure data in real time, the control complexity and the hysteresis of the reinforcing and lifting site are greatly simplified, and the high safety and high quality construction of reinforcing and lifting by grouting of the power-assisted building is realized.
The present application may be further configured in a preferred example to: the grouting reinforcement lifting process comprises a plurality of grouting stages, and each grouting stage adopts a grouting pump adjusting mode and/or a grouting liquid adjusting mode; in the grouting stage adopting a grouting pump adjusting mode, a speed adjusting signal is output to a grouting pump to change the speed of grouting liquid injection, so that the reinforcing and lifting speed of the building is changed; in the grouting stage adopting the grouting liquid adjusting mode, a proportioning adjusting signal is output to a grouting pump to change the solidification speed of the grouting liquid, so that the reinforcing and lifting speed of the building is changed.
Through adopting above-mentioned technical scheme, grouting pump adjustment mode and slip casting liquid adjustment mode provide two kinds of modes of adjusting slip casting and strengthening the lifting speed to multiple lifting situation at the reinforcing lifting scene is adapted to.
The present application may be further configured in a preferred example to: outputting a speed adjusting signal to the grouting pump according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid:
calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
if the grouting pressure value of the reinforcing lifting point is smaller than the preset grouting pressure value, outputting a speed increasing signal to the grouting pump to increase the grouting liquid injection speed of the grouting pump;
if the grouting pressure value of the reinforcing lifting point is larger than the preset grouting pressure value, outputting a speed reduction signal to the grouting pump to reduce the speed of the grouting pump for injecting grouting liquid.
By adopting the technical scheme, the calculation of the preset grouting pressure value provides a data basis for controlling the output power of the grouting pump.
The present application may be further configured in a preferred example to: and the difference value between the numerical value of the speed increasing signal and the numerical value of the speed decreasing signal and the numerical value of the grouting pressure and the preset grouting pressure conforms to a pre-stored speed regulation change curve.
By adopting the technical scheme, the preset storage of the speed regulation change curve simplifies the calculation steps of the numerical value of the speed increasing signal and the speed reducing signal along with the difference change relation of the grouting pressure numerical value and the preset grouting pressure numerical value in the grouting pump control process, and reduces the calculation requirements on equipment.
The present application may be further configured in a preferred example to: according to the height data and the height change speed, a proportioning adjustment signal is output to the grouting pump to change the proportioning of grouting liquid, so that the solidification speed of the grouting liquid is changed by the following steps:
calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
if the grouting pressure value of the reinforcing lifting point is smaller than the preset grouting pressure value, outputting a water-cement ratio increasing signal to a grouting pump so as to increase the solidification speed of grouting liquid;
and if the grouting pressure value of the reinforcement lifting point is greater than the preset grouting pressure value, outputting a water-cement ratio reduction signal to the grouting pump to reduce the solidification speed of the grouting liquid.
By adopting the technical scheme, the calculation of the preset grouting pressure value provides a data basis for controlling the output power of the grouting pump.
The application may be further configured in a preferred example to: and the difference value between the numerical value of the water-cement ratio increasing signal and the water-cement ratio decreasing signal and the grouting pressure numerical value and the preset grouting pressure numerical value accords with a prestored water-cement ratio change curve.
By adopting the technical scheme, the preset storage of the water-cement ratio change curve simplifies the calculation steps of the difference change relation between the grouting pressure value and the preset grouting pressure value along with the values of the water-cement ratio increase signal and the water-cement ratio decrease signal in the control process of the grouting pump, and reduces the calculation requirements on equipment.
The present application may be further configured in a preferred example to: if the lifting height variation speed is greater than the maximum value of the preset reinforcement lifting speed, synchronously outputting a speed reduction signal to the grouting pump to synchronously reduce the speed of injecting the grouting liquid by the grouting pump, and/or outputting a water-cement ratio reduction signal to the grouting pump to synchronously reduce the solidification speed of the grouting liquid;
if the lifting height variation speed is smaller than the minimum value of the preset reinforcement lifting speed, a speed increasing signal is synchronously output to the grouting pump to synchronously increase the speed of the grouting pump for injecting the grouting liquid, and/or a water-cement ratio increasing signal is output to the grouting pump to synchronously increase the solidification speed of the grouting liquid;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
By adopting the technical scheme, if the height change speed of the building is greater than the preset reinforcement lifting speed, the lifting speed of the building is over high, at the moment, the lifting speed of the building is integrally reduced, and then the grouting pump of each grouting reinforcement lifting point is finely adjusted to realize the synchronous action of all grouting reinforcement lifting points on the building.
The present application may be further configured in a preferred example to: the grouting liquid is single grouting liquid or double grouting liquid.
The present application may be further configured in a preferred example to: and if any one of the situation that the height data is in a decreasing trend and the situation that the numerical value of the height data is equal to or greater than the preset height numerical value exists, outputting an alarm driving signal to an alarm device to enable the alarm device to give an alarm.
By adopting the technical scheme, when the height data is in the condition of reducing trend, the building is proved to be settled in the initial grouting stage, if the numerical value of the height data is equal to or greater than the preset height numerical value, the lifting height of the lifting point is proved to have reached the preset height, and when the two conditions occur, the alarm device gives an alarm in time, so that the further settlement of the building or the over-high lifting condition of the lifting point is avoided.
The present application may be further configured in a preferred example to: the preset height comprises a preset stage height and a preset final height, when the numerical value of the height data is equal to or larger than the preset final height, a stop signal is output to the grouting pump, the descending amplitude of the height data numerical value exceeds a preset stable range in the preset monitoring time after the stop signal is output, a starting signal is output to the grouting pump until the stop signal is output, and the descending amplitude of the height data numerical value in the preset monitoring time is located in the preset stable range.
In a second aspect, the present application further provides an existing building slip casting reinforcing and lifting intelligent monitoring device, including:
the data acquisition module is used for acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
the change speed calculation module is used for calculating the lifting height change speed of the building according to the height data;
control module for
When the height data is in a decreasing trend, the control module outputs a stop signal to the grouting pump to stop the grouting pump;
when the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to a grouting pump according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump according to the height data, the height change speed and the grouting pressure data to change the proportioning of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and when the numerical value of the height data is equal to or larger than the preset height numerical value, outputting a stop signal to the grouting pump to stop the grouting pump.
The present application may be further configured in a preferred example to: the grouting reinforcement lifting process comprises a plurality of grouting stages, and each grouting stage adopts a grouting pump adjusting mode and/or a grouting liquid adjusting mode; in a grouting stage adopting a grouting pump adjusting mode, the control module outputs a speed adjusting signal to a grouting pump to change the speed of grouting liquid injection, so that the reinforcing and lifting speed of the building is changed; in the grouting stage adopting the grouting liquid adjusting mode, the control module outputs a proportioning adjusting signal to the grouting pump so as to change the solidification speed of the grouting liquid, and therefore the reinforcing and lifting speed of the building is changed.
The present application may be further configured in a preferred example to: the control module includes:
the first calculation unit is used for calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
a logic control unit for
When the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a speed increasing signal to the grouting pump to increase the grouting liquid injection speed of the grouting pump;
and when the grouting pressure value of the reinforcing lifting point is greater than the preset grouting pressure value, outputting a speed reduction signal to the grouting pump to reduce the speed of the grouting pump for injecting grouting liquid.
The application may be further configured in a preferred example to: the control module further comprises a pre-storing unit, the pre-storing unit stores a speed adjusting change curve of the numerical value of the speed increasing signal and the speed reducing signal along with the difference change of the grouting pressure numerical value and the preset grouting pressure numerical value, and the logic control unit outputs the speed increasing signal or the speed reducing signal according to the speed adjusting change curve.
The present application may be further configured in a preferred example to: the control module includes:
the second calculation unit is used for calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
a logic control unit for
When the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a water-cement ratio increasing signal to a grouting pump so as to increase the solidification speed of grouting liquid;
and when the grouting pressure value of the reinforcement lifting point is greater than the preset grouting pressure value, outputting a water-cement ratio reduction signal to the grouting pump so as to reduce the solidification speed of the grouting liquid.
The present application may be further configured in a preferred example to: the control module further comprises a pre-storage unit, a water-cement ratio change curve of the numerical values of the water-cement ratio increase signal and the water-cement ratio decrease signal along with the change of the difference value of the grouting pressure numerical value and the preset grouting pressure numerical value is stored in the pre-storage unit, and the logic control unit outputs the water-cement ratio increase signal or the water-cement ratio decrease signal according to the water-cement ratio change curve.
The application may be further configured in a preferred example to: when the lifting height variation speed is larger than the maximum value of the preset reinforcement lifting speed, the control module synchronously outputs a speed reduction signal to the grouting pump so as to synchronously reduce the speed of the grouting pump for injecting grouting liquid, and/or outputs a water-cement ratio reduction signal to the grouting pump so as to synchronously reduce the solidification speed of the grouting liquid;
when the lifting height variation speed is smaller than the minimum value of the preset reinforcement lifting speed, the control module synchronously outputs a speed increasing signal to the grouting pump so as to synchronously improve the speed of the grouting pump for injecting the grouting liquid, and/or outputs a water-cement ratio improving signal to the grouting pump so as to synchronously improve the solidification speed of the grouting liquid;
and the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
The present application may be further configured in a preferred example to: the control module is further connected with an alarm device, and when any one of the conditions that the height data is in a decreasing trend and the value of the height data is equal to or greater than the preset height value exists, the control module outputs an alarm driving signal to the alarm device so that the alarm device gives an alarm.
The present application may be further configured in a preferred example to: it is high including predetermineeing stage height and predetermineeing final height to predetermine the height data's numerical value equals or is greater than when predetermineeing final height, control module is to the grouting pump (output stop signal, and in the monitoring time of predetermineeing behind the output stop signal height data numerical value descending amplitude surpasss when predetermineeing stability range, control module exports the start signal to the grouting pump, until output stop signal after predetermine in the monitoring time height data numerical value descending amplitude is located predetermine the stability range.
In a third aspect, the present application further provides an existing building grouting reinforcement lifting intelligent monitoring system, including:
one or more memories for storing instructions; and
one or more processors for calling and executing the instructions from the memory to execute the above method.
In a fourth aspect, the present application further provides a computer-readable storage medium comprising:
and when the program is operated by the processor, the intelligent monitoring method for grouting reinforcement and lifting of the existing building is executed.
Drawings
Fig. 1 is a schematic view of a plurality of reinforcement lifting points in grouting reinforcement lifting of a building.
FIG. 2 is a construction topology of a single reinforcement lift point in the present application.
Fig. 3 is a flowchart of an intelligent monitoring method for grouting reinforcement lifting in an embodiment of the present application.
Fig. 4 is a flowchart of adjusting the output power of the grouting pump according to the altitude change speed in the first embodiment of the present application.
Fig. 5 is a system diagram of the grouting reinforcement lifting intelligent monitoring device in the application.
Fig. 6 is a flowchart of an intelligent monitoring method for grouting reinforcement lifting in the second embodiment of the present application.
In the figure, 1, a grouting pipe; 2. grouting pump; 3. and (4) material source.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Referring to fig. 1, the grouting for construction engineering refers to a method of injecting some curable grout into a geotechnical ground by a proper method to improve its physical and mechanical properties by means of displacement, filling, extrusion, etc. The grouting reinforcement lifting of the building refers to the grouting reinforcement lifting of the building at a plurality of preset grouting reinforcement lifting points around the building. For different buildings, the preset grouting reinforcement lifting points are different, but in the same reinforcement lifting project, the reinforcement lifting of each reinforcement lifting point needs to be kept synchronous, and the excessive supporting force of the reinforcement lifting point of a certain area to the building is avoided. The grouting reinforcement lifting intelligent monitoring method and system provided by the application aim to realize detection of reinforcement lifting process data and further automatic intelligent regulation of grouting speed in the grouting reinforcement lifting process of an existing building.
The first embodiment is as follows:
referring to fig. 2, in the embodiment, grouting, reinforcing and lifting of the building are performed by injecting grouting liquid in a grouting pool through a grouting pipe 1 to a position below a specified reinforcing and lifting point by using a grouting pump 2, and the grouting liquid injected below the reinforcing and lifting point is solidified to support the building. The grouting liquid in the embodiment is single-size liquid or double-size liquid, preferably double-size liquid, the double-size liquid at least comprises cement and water glass, and other raw materials can be added to a construction site according to geological conditions to change the characteristics of the double-size liquid, which is not limited herein; the grouting pool is used as a material source 3, is a storage structure for temporarily storing grouting liquid raw materials, and is generally provided with a stirring device to stir the grouting liquid in the grouting pool and prevent the grouting liquid from solidifying. The number of grouting tanks, i.e. sources 3, corresponds to the amount of material of the grouting liquid. In this embodiment, the lifting points correspond to the grouting holes and the grouting pipes 1 one to one.
Referring to fig. 2 and 3, based on the grouting process of the existing building, the embodiment provides an intelligent monitoring method for grouting reinforcement and lifting, and the method is a real-time monitoring method for the integral reinforcement and lifting of the building. The method specifically comprises the following steps:
acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
calculating the lifting height change speed of the building according to the height data;
if the height data is in a decreasing trend, outputting a stop signal to the grouting pump 2 to stop the grouting pump 2;
if the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to the grouting pump 2 according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump 2 according to the height data, the height change speed and the grouting pressure data to change the proportioning of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and if the numerical value of the height data is equal to or greater than the preset height numerical value, outputting a stop signal to the grouting pump 2 to stop the grouting pump 2.
By acquiring the height data and the grouting pressure data of each reinforcing and lifting point in real time, the automatic intelligent control over the grouting pump 2 at each reinforcing and lifting point position in the reinforcing and lifting field is realized, and the complexity and the hysteresis of the detection and control of the reinforcing and lifting field are greatly simplified.
Methods of obtaining reinforcement lift point height include, but are not limited to, manual measurement and automatic acquisition. The manual measuring process generally includes that workers measure the real-time height of a reinforcing and lifting point according to a horizontal height measuring tool, such as a level meter, and then manually input the measured height; the automatic acquisition process generally includes the step of realizing real-time height measurement of the reinforcement lifting point through automatic positioning. The horizontal height of consolidating the lifting point is measured to the mode that adopts automatic acquisition in this embodiment, and is concrete, consolidates the fixed installation big dipper monitoring station of lifting point at each, adopts big dipper positioning technology to realize the altitude measurement to big dipper monitoring station, and then realizes the altitude measurement to each reinforcement lifting point to obtain the altitude data of consolidating the lifting point. It should be understood that, since the building is an integral structure, generally, the structure of the building does not change during the grouting reinforcement and lifting process of the building, in another example, the height data of each reinforcement and lifting point can also be calculated by directly measuring the height data of the building and then calculating the height data of each reinforcement and lifting point according to the height data of the building. For example, for a building with a rectangular raft foundation, the height data may be height data of four corners of the building, and then the height data of each reinforcement lifting point is calculated according to the height data of the four corners of the building.
The grouting pressure data can be obtained by directly acquiring pressure gauge data on the grouting pump 2.
The grouting reinforcement lifting process comprises a plurality of grouting stages, each grouting stage comprises a grouting time interval and a stable time interval, grouting is conducted in the grouting holes in the grouting time intervals, and grouting is stopped in the stable time intervals. In the stage of starting grouting, because the grouting liquid that pours into the grouting hole interacts with the soil layer of slip casting position, the situation that the height of reinforcing lifting point descends in the period of slip casting takes place, height data is in the trend that reduces promptly, can cause the potential safety hazard after this kind of situation takes place generally, and be not suitable for carrying out automatic slip casting regulation again, export stop signal to grouting pump 2 this moment for grouting pump 2 stop work, later change again by the field work personnel to grouting pump 2, the manual regulation is done to grouting liquid or grouting hole position, in order to ensure the safety of slip casting reinforcing lifting process.
Referring to fig. 3 and 4, after the initial grouting stage, grouting is performed again, and the height data of the reinforcement lifting point will be in an ascending trend during the grouting period, the output power of the grouting pump 2 is changed to change the grouting speed during the grouting period, and the speed adjusting signal according to which the output power of the grouting pump 2 is changed includes a speed increasing signal and a speed decreasing signal.
In one example, if the lifting height variation speed of the building is greater than the maximum value of the preset reinforcement lifting speed, which indicates that the lifting speed of the building exceeds the preset speed, a speed reduction signal is synchronously output to the grouting pump 2 to synchronously reduce the output power of the grouting pump 2, namely, the speed of the grouting pump 2 for conveying grouting liquid is synchronously reduced; if the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, the building lifting speed is lower than the preset speed, and a speed increasing signal is synchronously output to the grouting pump 2 to synchronously improve the output power of the grouting pump 2, namely, the speed of the grouting pump 2 for conveying the grout is synchronously increased. The expression "synchronization" in this example refers to the following way of adjusting the grouting pump 2: in the building lifting process, grout injected by grouting pumps 2 positioned at different reinforcing and lifting points can fill up the foundation vacancy reserved due to building lifting. If three reinforcing and lifting points contained in the reinforcing and lifting process are A, B and C which are equidistant and collinear, the height of the point A is unchanged, the point B is lifted by h, and the point C is lifted by 2h, the slurry conveying speeds of the grouting pumps 2 of the point B and the point C which are synchronously increased are v and 2v respectively, so that the ratio of the grouting liquid amount which is injected by more times by increasing the power of the grouting pumps 2 at the point B and the point C is 1/2. Therefore, when the grouting speed of the grouting pump 2 is changed synchronously after the reinforcement lifting points are set, if one reinforcement lifting point is selected as a base point, the speed change factor of the other reinforcement lifting points is a calculable value, that is, each reinforcement lifting point has a known change factor in the process of synchronously reinforcing and lifting the building.
The maximum value of the preset reinforcement lifting speed and the minimum value of the preset reinforcement lifting speed form a range of the preset reinforcement lifting speed, and the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed; the range of the preset reinforcement lifting speed is calculated in advance according to the site condition of the building.
And comparing the grouting pressure value of the reinforcement lifting point with a preset grouting pressure value of the corresponding reinforcement lifting point, changing the output power of the grouting pump 2 according to the comparison result and the change factor of the corresponding reinforcement lifting point, changing the grouting speed in the grouting period by changing the output power of the grouting pump 2, wherein the speed adjusting signal according to which the output power of the grouting pump 2 is changed is also included in the speed increasing signal and the speed decreasing signal.
The preset grouting pressure value is obtained by calculating in real time according to the height data value of each grouting reinforcement lifting point, the height change speed value of each lifting point and the grouting pressure data value. In the grouting reinforcement lifting process, after a building is lifted to a certain height, supporting force required to be applied to the building by reinforcing lifting points is generally obtained by looking up a table of height data values and lifting point height change speeds, data obtained by the table look-up is standard data, but the lifting of a grouting liquid to the building is affected by the stress, the composition and the structure of soil at the bottom of the ground, when the difference between the numerical value of the grouting pressure data and the standard data obtained by the table look-up is overlarge, if the grouting pressure of a grouting pump 2 is directly changed to the standard data, the later reinforcement lifting is repeatedly changed due to overlarge sudden change of the grouting pressure in a short time, so in the embodiment of the application, the preset grouting pressure value is obtained by independent calculation, and the standard data cannot be directly assigned to the preset grouting pressure value.
Specifically, the preset grouting pressure data is calculated in the following way:
fv = Fn-k (Fn-Fc), wherein: fv is the preset grouting pressure, Fn is the standard data, Fc is the acquired grouting pressure, and k is a constant and less than 1.
In a preferred example, the magnitude of the change of the value of the output power of the grouting pump 2 and the difference between the value of the grouting pressure data and the preset grouting pressure value conform to a binary curve change rule, and the change relationship is a prestored speed regulation change curve, so that a final speed increasing signal or speed decreasing signal is calculated according to the change curve and the difference between the value of the grouting pressure data and the preset grouting pressure value. When the grouting pressure value of the reinforcing lifting point is smaller than the preset grouting pressure value, the supporting strength of the corresponding reinforcing lifting point to the building is small, and a speed increasing signal is output to the grouting pump 2 to increase the grouting speed of the grouting pump 2, so that the supporting strength of the reinforcing lifting point to the building is increased; when the grouting pressure value of the reinforcement lifting point is greater than the preset grouting pressure value, the support strength of the corresponding reinforcement lifting point to the building is too large, and then a speed reducing signal is output to the grouting pump 2 to reduce the speed of the grouting pump 2 for injecting grouting liquid, so that the support strength of the reinforcement lifting point to the building is reduced.
In another example, the output power of the grouting pump 2 is preset with a plurality of different values varying linearly, the power of a given grouting pump 2 is jumped between the different values in a manner of adjusting the output power of the grouting pump 2 according to the speed increasing signal or the speed decreasing signal, and the variation rate of the altitude variation speed and the difference between the value of the grouting pressure data and the preset grouting pressure value are taken as the basis for setting the jump size. If the output power of the grouting pump 2 is eta 1, eta 2 and eta 3 … eta n in sequence and the initial power of the grouting pump 22 is eta k, when the altitude variation speed is lower than the minimum value of the preset reinforcement lifting speed and/or the grouting pressure value of the reinforcement lifting point is greater than the preset grouting pressure value, the output power of the grouting pump 2 can be set to be eta k-1, eta k-2 or eta k-5 and the like according to the difference between the altitude variation speed and the preset reinforcement lifting speed and the difference between the grouting pressure value of the reinforcement lifting point and the preset grouting pressure value, wherein n and k are natural numbers.
If the value of the height data is equal to or greater than the preset height value, a stop signal is output to the grouting pump 2. The preset heights comprise a preset stage height and a preset final height, and the preset stage height and the preset final height respectively correspond to a building lifting target height in a single grouting stage and a building lifting target height of the integral reinforcement lifting project. In the grouting period of a single grouting stage, if the numerical value of the height data is equal to or greater than the height of the preset stage, the height of the building exceeds the standard in the grouting process in the single grouting stage, and at the moment, a stop signal is output to the grouting pump 2 to stop the grouting pump 2; if the numerical value of the height data is larger than the preset final height, a stop signal is input to the grouting pump 2, and the descending amplitude of the height numerical value exceeds the preset stable range within the preset monitoring time after the stop signal is output, the control module outputs a starting signal to the grouting pump 2 to start grouting again until the descending amplitude of the height numerical value within the preset monitoring time is within the preset stable range.
Referring to fig. 5, the present application further provides an existing building grouting reinforcement lifting intelligent monitoring device, and the system includes:
the data acquisition module is used for acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
the change speed calculation module is used for calculating the lifting height change speed of the building according to the height data;
and a control module for
When the height data is in a decreasing trend, the control module outputs a stop signal to the grouting pump 2 to stop the grouting pump 2;
when the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to the grouting pump 2 according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump 2 according to the height data, the height change speed and the grouting pressure data to change the proportioning of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and when the numerical value of the height data is equal to or greater than the preset height numerical value, outputting a stop signal to the grouting pump 2 to stop the grouting pump 2.
The control module outputs a speed adjusting signal to the grouting pump 2 according to the height data, the lifting height change speed and the grouting pressure data so as to change the grouting speed of the grouting pump 2, and the method can refer to the existing building grouting reinforcement lifting intelligent monitoring method, and is not described herein again.
Reinforce the lifting in-process at the slip casting through consolidating fixed installation big dipper monitoring station of lifting point to realize consolidating the height data of lifting point through big dipper positioning technology real-time measurement, through reading grouting pump 2's manometer data, acquire in real time grouting pressure data.
Preferably, the data acquisition module, the change speed calculation module and the control module are integrated in a central controller with integrated control function, such as a computer, an industrial personal computer and the like. The central controller is connected with the additional equipment and the cloud database in a wired or wireless mode, the additional equipment at least comprises a mobile phone and an alarm device, of course, electronic equipment with mobile communication function, electronic display function and data processing function can be used as the additional equipment, and the mobile phone described in the embodiment is not the only limitation on the additional equipment. In a preferred example, the central controller is connected with a mobile handset through a 4G network and is connected with the alarm device through a wired connection mode of a field bus.
On one hand, the central controller acquires height data detected by a Beidou monitoring station through a Beidou positioning network; on the other hand, the staff can acquire the height data, grouting pressure data, height change speed and other data received by the central controller through the additional equipment, and change the numerical values of preset data such as the range of preset reinforcement lifting speed, the preset height, change curves and the like applied in the process of implementing the existing building grouting reinforcement lifting intelligent monitoring method through the central controller through the additional equipment.
When any one of the situation that the height data is in a decreasing trend and the situation that the value of the height data is equal to or larger than the preset height value exists, the central controller simultaneously outputs an alarm driving signal to the mobile phone and the alarm device so as to alarm through the mobile phone and the alarm device. The alarm device of the alarm device generating the alarm signal is preferably a buzzer.
From the above description it can be seen that: in the building grouting reinforcement lifting process, the height data and the grouting pressure data of each reinforcement lifting point are automatically acquired through the central controller, and the grouting speed of the grouting pump 2 of each reinforcement lifting point is automatically calculated and controlled, so that the automatic monitoring in the whole grouting reinforcement lifting process is realized, the automation performance of the grouting reinforcement lifting project is improved, the control complexity and the hysteresis of the reinforcement lifting field are greatly simplified, and the high safety and high quality construction of building grouting reinforcement lifting is assisted.
The embodiment of the application also discloses an intelligent monitoring system for grouting reinforcement and lifting of the existing building, which mainly comprises one or more memories and one or more processors:
the memory is used for storing instructions;
and the processor is used for calling and running the instruction from the memory and executing the intelligent monitoring method for grouting reinforcement and lifting of the existing building.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
The non-volatile memory may be ROM, Programmable Read Only Memory (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), or flash memory.
Volatile memory can be RAM, which acts as external cache memory. There are many different types of RAM, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synclink DRAM (SLDRAM), and direct memory bus RAM.
The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the method for transmitting feedback information. The processing unit and the storage unit may be decoupled, and are respectively disposed on different physical devices, and are connected in a wired or wireless manner to implement respective functions of the processing unit and the storage unit, so as to support the system chip to implement various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a computer-readable storage medium, which includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned computer-readable storage media comprise: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Example two:
the difference between the present embodiment and the first embodiment is that, in the grouting reinforcement and lifting process of the building described in the present embodiment, the supporting strength of each reinforcement lifting point to the building is adjusted by adjusting the solidification speed of the grouting liquid, or the reinforcement lifting speed of the building is integrally adjusted.
The following describes the difference between the first embodiment and the second embodiment only in terms of the existing intelligent monitoring method for building grouting reinforcement lifting.
Referring to fig. 6, if the height data is in the ascending trend and the height data value is lower than the preset height value, a proportioning adjustment signal is output to the grouting pump 2 according to the height data, the height variation speed and the grouting pressure data to change the proportioning of the grouting liquid, so as to change the solidification speed of the grouting liquid. And if the numerical value of the height data is equal to or greater than the preset height numerical value, outputting a stop signal to the grouting pump 2 to stop the grouting pump 2.
Preferably, each reinforcement lifting point all is provided with a slip casting pipe 1, and each slip casting pipe 1 is connected with multiple material former, all is connected through grouting pump 2 between each material former and the slip casting pipe 1, and the thick liquid in the material former forms the slip casting liquid at slip casting pipe 1 inside mixture after getting into slip casting pipe 1. The proportion of the grouting liquid can be adjusted by adjusting the output power of the grouting pump 2, so that the solidification speed of the grouting liquid is changed.
After the initial grouting stage, grouting again, wherein the height data is in an ascending trend in the grouting period, and the solidification speed of the grouting liquid is changed by changing the water-cement ratio of the grouting liquid on the premise of not changing the grouting speed of the grouting pump 2.
If the lifting height variation speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a water-cement ratio reduction signal to the grouting pump 2 to synchronously reduce the solidification speed of the grouting liquid; and if the lifting height change speed is less than the minimum value of the preset reinforcement lifting speed, synchronously outputting a water-cement ratio improvement signal to the grouting pump 2 so as to synchronously improve the solidification speed of the grouting liquid.
And comparing the grouting pressure value of the reinforcement lifting point with a preset grouting pressure value of the corresponding reinforcement lifting point, changing the proportion of grouting liquid according to the comparison result and the change factor of the corresponding reinforcement lifting point, changing the supporting strength of the reinforcement lifting point to the building in the grouting period by changing the proportion of the grouting liquid, and also including a proportion adjusting signal according to which the proportion of the grouting liquid is changed in the speed increasing signal and the speed decreasing signal.
Wherein, the ratio adjusting signal comprises a water-cement ratio increasing signal and a water-cement ratio decreasing signal. If the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a water-cement ratio increasing signal to the grouting pump 2 to increase the solidification speed of grouting liquid; if the grouting pressure value of the reinforcing lifting point is larger than the preset grouting pressure value, a water-cement ratio reducing signal is output to the grouting pump 2 to reduce the solidification speed of the grouting liquid.
In a preferred example, the difference between the values of the water-cement ratio increasing signal and the water-cement ratio decreasing signal and the values of the grouting pressure and the preset grouting pressure conforms to a binary curve variation rule, and the variation relationship is a prestored water-cement ratio variation curve, so that a final water-cement ratio increasing signal or water-cement ratio decreasing signal is obtained by calculation according to the variation curve and the difference between the values of the grouting pressure data and the preset grouting pressure.
In the intelligent monitoring device for grouting reinforcement and lifting of the existing building, provided by this embodiment, the control module outputs a proportioning adjustment signal according to the height data, the lifting height change speed, and the grouting pressure data to adjust the solidification speed of the grouting liquid, and reference may be made to the intelligent monitoring method for grouting reinforcement and lifting of the existing building in this embodiment, which is not described herein again.
From the above description it can be seen that: in the building grouting reinforcement lifting process, the height data and the grouting pressure data of each reinforcement lifting point are automatically acquired through the central controller, and the solidification speed of grouting liquid of each reinforcement lifting point is automatically calculated and controlled, so that the automatic monitoring in the whole grouting reinforcement lifting process is realized, the automation performance of the grouting reinforcement lifting project is improved, the control complexity and the hysteresis of the reinforcement lifting field are greatly simplified, and the high safety and high quality construction of building grouting reinforcement lifting is assisted.
Example three:
the difference between the embodiment and the first embodiment and the second embodiment is described in terms of an existing intelligent monitoring method for building grouting reinforcement lifting: in the grouting stage, if the height data is in the ascending trend and the height data value is lower than the preset height value, a speed adjusting signal and a ratio adjusting signal are output to the grouting pump 2 according to the height data, the lifting height changing speed and the grouting pressure data so as to change the output power of each grouting pump 2.
If the lifting height variation speed is greater than the maximum value of the preset reinforcement lifting speed, synchronously outputting a speed reduction signal to the grouting pump 2 to synchronously reduce the speed of the grouting pump 2 for injecting the grouting liquid, and outputting a water-cement ratio reduction signal to the grouting pump 2 to synchronously reduce the solidification speed of the grouting liquid; if the lifting height variation speed is smaller than the minimum value of the preset reinforcement lifting speed, a signal is synchronously output to the grouting pump 2 to synchronously increase the speed of the grouting pump 2 for injecting grouting liquid, and a water-cement ratio increasing signal is output to the grouting pump 2 to synchronously increase the solidification speed of the grouting liquid.
The above embodiments are all preferred embodiments of the present application, and the scope of protection of the present application is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (21)
1. The intelligent monitoring method for grouting reinforcement and lifting of the existing building is characterized by comprising the following steps:
acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
calculating the lifting height change speed of the building according to the height data;
if the height data is in a decreasing trend, outputting a stop signal to the grouting pump (2) to stop the grouting pump (2);
if the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to the grouting pump (2) according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a proportion adjusting signal to the grouting pump (2) according to the height data, the height change speed and the grouting pressure data to change the proportion of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and if the numerical value of the height data is equal to or larger than the preset height numerical value, outputting a stop signal to the grouting pump (2) to stop the grouting pump (2).
2. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: the grouting reinforcement lifting process comprises a plurality of grouting stages, and each grouting stage adopts a grouting pump (2) adjusting mode and/or a grouting liquid adjusting mode; in the grouting stage adopting the grouting pump (2) adjusting mode, a speed adjusting signal is output to the grouting pump (2) to change the speed of grouting liquid injection, so that the reinforcement lifting speed of the building is changed; in the grouting stage adopting a grouting liquid adjusting mode, a proportioning adjusting signal is output to the grouting pump (2) to change the solidification speed of the grouting liquid, so that the reinforcing and lifting speed of the building is changed.
3. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: outputting a speed adjusting signal to the grouting pump (2) according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid:
calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
if the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a speed increasing signal to the grouting pump (2) to increase the grouting speed of the grouting pump (2);
if the grouting pressure value of the reinforcing lifting point is larger than the preset grouting pressure value, outputting a speed reduction signal to the grouting pump (2) to reduce the speed of grouting liquid injected by the grouting pump (2).
4. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 3, characterized in that: and the difference value between the numerical value of the speed increasing signal and the numerical value of the speed decreasing signal and the numerical value of the grouting pressure and the preset grouting pressure conforms to a pre-stored speed regulation change curve.
5. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: the method comprises the following steps of outputting a proportioning adjustment signal to the grouting pump (2) according to the height data and the height change speed to change the proportioning of grouting liquid, so that the solidification speed of the grouting liquid is changed: calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
if the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a water-cement ratio increasing signal to the grouting pump (2) to increase the solidification speed of grouting liquid;
if the grouting pressure value of the reinforcing lifting point is larger than the preset grouting pressure value, a water-cement ratio reducing signal is output to the grouting pump (2) so as to reduce the solidification speed of the grouting liquid.
6. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 5, characterized in that: and the difference value between the numerical value of the water-cement ratio increasing signal and the water-cement ratio decreasing signal and the grouting pressure numerical value and the preset grouting pressure numerical value accords with a prestored water-cement ratio change curve.
7. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that:
if the lifting height variation speed is larger than the maximum value of the preset reinforcement lifting speed, synchronously outputting a speed reduction signal to the grouting pump (2) to synchronously reduce the speed of the grouting pump (2) for injecting grouting liquid, and/or outputting a water-cement ratio reduction signal to the grouting pump (2) to synchronously reduce the solidification speed of the grouting liquid;
if the lifting height variation speed is smaller than the minimum value of the preset reinforcement lifting speed, a speed increasing signal is synchronously output to the grouting pump (2) to synchronously increase the speed of the grouting pump (2) for injecting grouting liquid, and/or a water-cement ratio increasing signal is output to the grouting pump (2) to synchronously increase the solidification speed of the grouting liquid;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
8. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: the grouting liquid is single grouting liquid or double grouting liquid.
9. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: and if any one of the situation that the height data is in a decreasing trend and the situation that the numerical value of the height data is equal to or greater than the preset height numerical value exists, outputting an alarm driving signal to an alarm device to enable the alarm device to alarm.
10. The intelligent monitoring method for grouting, reinforcing and lifting of the existing building according to claim 1, characterized in that: the preset height comprises a preset stage height and a preset final height, when the numerical value of the height data is equal to or larger than the preset final height, a stop signal is output to the grouting pump (2), and in the preset monitoring time after the stop signal is output, the descending amplitude of the height data numerical value exceeds a preset stable range, a starting signal is output to the grouting pump (2) until the stop signal is output, the descending amplitude of the height data numerical value in the preset monitoring time is located in the preset stable range.
11. The utility model provides an existing building slip casting consolidates lifting intelligent monitoring device which characterized in that includes:
the data acquisition module is used for acquiring height data and grouting pressure data of each reinforcing and lifting point in the grouting reinforcing and lifting process;
the change speed calculation module is used for calculating the lifting height change speed of the building according to the height data;
control module for
When the height data is in a decreasing trend, the control module outputs a stop signal to the grouting pump (2) so that the grouting pump (2) stops working;
when the height data is in a rising trend and the height data value is lower than a preset height value, outputting a speed adjusting signal to the grouting pump (2) according to the height data, the lifting height change speed and the grouting pressure data to change the speed of grouting liquid, and/or outputting a ratio adjusting signal to the grouting pump (2) according to the height data, the height change speed and the grouting pressure data to change the ratio of the grouting liquid, so that the solidification speed of the grouting liquid is changed;
and when the numerical value of the height data is equal to or larger than the preset height numerical value, outputting a stop signal to the grouting pump (2) to stop the grouting pump (2).
12. The intelligent monitoring device for grouting reinforcement and lifting of the existing building according to claim 11, wherein the grouting reinforcement and lifting process comprises a plurality of grouting stages, and each grouting stage adopts a grouting pump (2) adjusting mode and/or a grouting liquid adjusting mode; in a grouting stage adopting a grouting pump (2) adjusting mode, the control module outputs a speed adjusting signal to the grouting pump (2) to change the speed of grouting liquid injection, so that the reinforcing and lifting speed of the building is changed; in the grouting stage adopting a grouting liquid adjusting mode, the control module outputs a proportioning adjusting signal to the grouting pump (2) to change the solidification speed of the grouting liquid, so that the reinforcement lifting speed of the building is changed.
13. The intelligent monitoring device for grouting, reinforcing and lifting of the existing building according to claim 11, wherein the control module comprises:
the first calculation unit is used for calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
a logic control unit for
When the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a speed increasing signal to the grouting pump (2) to increase the grouting speed of the grouting pump (2);
and when the grouting pressure value of the reinforcement lifting point is greater than the preset grouting pressure value, outputting a speed reduction signal to the grouting pump (2) to reduce the speed of grouting liquid injected by the grouting pump (2).
14. The intelligent grouting reinforcement lifting monitoring device for the existing building according to claim 13, wherein the control module further comprises a pre-storage unit, the pre-storage unit stores a speed regulation variation curve of the values of the speed increase signal and the speed decrease signal along with the difference between the grouting pressure value and a preset grouting pressure value, and the logic control unit outputs the speed increase signal or the speed decrease signal according to the speed regulation variation curve.
15. The intelligent monitoring device for grouting, reinforcing and lifting of the existing building according to claim 11, wherein the control module comprises:
the second calculation unit is used for calculating a preset grouting pressure value of each reinforcing lifting point according to the height data value, the lifting height change speed value and the grouting pressure data value of each reinforcing lifting point;
a logic control unit for
When the grouting pressure value of the reinforcement lifting point is smaller than the preset grouting pressure value, outputting a water-cement ratio increasing signal to the grouting pump (2) so as to increase the solidification speed of grouting liquid;
and when the grouting pressure value of the reinforcing lifting point is greater than the preset grouting pressure value, outputting a water-cement ratio reduction signal to the grouting pump (2) to reduce the solidification speed of the grouting liquid.
16. The intelligent grouting, reinforcing and lifting monitoring device for the existing building according to claim 15, wherein the control module further comprises a pre-storing unit, the pre-storing unit stores a water-cement ratio variation curve of values of the water-cement ratio increasing signal and the water-cement ratio decreasing signal changing with a difference value between the grouting pressure value and a preset grouting pressure value, and the logic control unit outputs the water-cement ratio increasing signal or the water-cement ratio decreasing signal according to the water-cement ratio variation curve.
17. The intelligent monitoring device for grouting, reinforcing and lifting of the existing building according to claim 11, characterized in that:
when the lifting height variation speed is larger than the maximum value of the preset reinforcement lifting speed, the control module synchronously outputs a speed reduction signal to the grouting pump (2) to synchronously reduce the speed of the grouting pump (2) for injecting grouting liquid, and/or outputs a water-cement ratio reduction signal to the grouting pump (2) to synchronously reduce the solidification speed of the grouting liquid;
when the lifting height variation speed is smaller than the minimum value of the preset reinforcement lifting speed, the control module synchronously outputs a speed increasing signal to the grouting pump (2) to synchronously increase the speed of the grouting pump (2) for injecting grouting liquid, and/or outputs a water-cement ratio increasing signal to the grouting pump (2) to synchronously increase the solidification speed of the grouting liquid;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
18. The intelligent monitoring device for grouting, reinforcing and lifting of the existing building according to claim 11, characterized in that: the control module is further connected with an alarm device, and when any one of the conditions that the height data is in a decreasing trend and the value of the height data is equal to or greater than the preset height value exists, the control module outputs an alarm driving signal to the alarm device so that the alarm device gives an alarm.
19. The intelligent monitoring device for grouting, reinforcing and lifting of the existing building according to claim 11, characterized in that: the preset height comprises a preset stage height and a preset final height, when the numerical value of the height data is equal to or larger than the preset final height, the control module outputs a stop signal to the grouting pump (2), and in the preset monitoring time after the stop signal is output, the descending amplitude of the numerical value of the height data exceeds the preset stable range, the control module outputs a starting signal to the grouting pump (2) until the stop signal is output, and the descending amplitude of the numerical value of the height data in the preset monitoring time is located in the preset stable range.
20. The utility model provides an existing building slip casting consolidates lifting intelligent monitoring system which characterized in that includes:
one or more memories for storing instructions; and
one or more processors configured to retrieve and execute the instructions from the memory, to perform the method of any of claims 1 to 10.
21. A computer-readable storage medium, the computer-readable storage medium comprising:
a program which, when executed by a processor, performs the intelligent monitoring method for grouting reinforcement lifting of an existing building according to any one of claims 1 to 10.
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| CN202011313982.1A CN114517481A (en) | 2020-11-20 | 2020-11-20 | Intelligent monitoring method, device and system for grouting reinforcement and lifting of existing building and computer readable storage medium |
| PCT/CN2021/120851 WO2022105429A1 (en) | 2020-11-20 | 2021-09-27 | Intelligent monitoring method, apparatus and system for grouting, reinforcement and lifting of existing building, and computer readable storage medium |
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| CN116044312B (en) * | 2023-04-03 | 2023-06-23 | 湖南大学 | Curve high-pressure jet grouting drill bit capable of monitoring grouting pressure in real time |
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