CN114108720A - Real-time monitoring method, system and device for grouting reinforcement and lifting of existing building - Google Patents
Real-time monitoring method, system and device for grouting reinforcement and lifting of existing building Download PDFInfo
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- CN114108720A CN114108720A CN202010871260.1A CN202010871260A CN114108720A CN 114108720 A CN114108720 A CN 114108720A CN 202010871260 A CN202010871260 A CN 202010871260A CN 114108720 A CN114108720 A CN 114108720A
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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
- E02D35/005—Lowering or lifting of foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract
A method, a system and a device for monitoring grouting reinforcement and lifting of an existing building in real time comprise the following steps: acquiring height data of a reinforcing and lifting point in a grouting reinforcing and lifting process; calculating the height change speed of the reinforced lifting point 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 the grouting pump according to the height change speed to change the output power of the grouting pump, and/or outputting a proportioning adjusting signal to the grouting pump according to the height change speed 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 to stop the grouting pump.
Description
Technical Field
The application relates to the technical field of building grouting reinforcement lifting, in particular to a method, a system and a device for monitoring grouting reinforcement lifting of an existing building in real time.
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. Multiple raw materials of mixed grouting liquid are injected into the grouting pipes through independent pipelines respectively, and each pipeline is provided with a grouting pump. Generally, in the building reinforcing and lifting process, due to the fact that the conditions of the grouting process are complex and changeable, frequent acquisition and analysis of the conditions of all the points on site are mostly carried out in a mode of manually monitoring the points, and the work of reinforcing and lifting equipment is adjusted according to analysis results.
Disclosure of Invention
In order to realize automatic control of the grouting reinforcement and lifting process of the existing building, the application provides a method, a system and a device for monitoring the grouting reinforcement and lifting of the existing building in real time.
In a first aspect, the present application provides a method for monitoring grouting, reinforcing and lifting of an existing building in real time, including:
acquiring height data of a reinforcing and lifting point in a grouting reinforcing and lifting process;
calculating the height change speed of the reinforced lifting point 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 the grouting pump according to the height change speed to change the speed of injecting grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump according to the height change speed 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 automatic data of the height of the building reinforcing and lifting point is acquired by the grouting lifting process, the working power of the grouting pump is adjusted according to the height data and the height change data of the reinforcing and lifting point, and the automatic intelligent control of the grouting lifting speed and the height in the grouting process is finally realized. Compare in the mode through manual monitoring control, the accuracy and the promptness of its data all improve greatly, and then improved the automation performance of slip casting reinforcement lifting in-process.
In a preferred example, the grouting reinforcement lifting process may further include a plurality of grouting stages, and each grouting stage adopts a grouting pump adjusting manner and/or a grouting liquid adjusting manner; 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 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 that the speed adjustment signal comprises a speed increase signal and a speed decrease signal;
the method for outputting a speed adjusting signal to the grouting pump according to the height change speed to change the speed of injecting the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a speed reduction signal to the grouting pump to synchronously reduce the power of the grouting pump so as to reduce the speed of grouting liquid injection;
if the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a speed increasing signal to the grouting pump to synchronously increase the power of the grouting pump, so that the grouting speed is increased;
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, when the height change speed is greater than the maximum value of the preset reinforcement lifting speed, the height change speed of the lifting point of the building is over high, and at the moment, the power of the grouting pump is synchronously reduced to reduce the speed of grouting liquid, so that the height change speed of the lifting point of the building is reduced; and otherwise, the speed of injecting the grouting liquid is increased, so that the height change speed of the lifting point of the building is increased. Meanwhile, the lifting speed of the reinforcement of the building can be more accurately controlled by monitoring the lifting speed of the reinforcement of the lifting point.
The present application may be further configured in a preferred example that the proportioning adjustment signal includes a water-cement ratio increase signal and a water-cement ratio decrease signal;
the grouting liquid is single grouting liquid, and the method for outputting a ratio adjusting signal to the grouting liquid synthesizing device according to the height change speed to change the solidification speed of the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a water-cement ratio increasing signal to the grouting pump (2) to increase the water-cement ratio of the grouting liquid, so as to reduce the solidification speed of the grouting liquid;
if the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a water-cement ratio reduction signal to the grouting pump (2) to reduce the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is increased;
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, when the height change speed is greater than the maximum value of the preset reinforcement lifting speed, the height change speed of the lifting point of the building is over high, and at the moment, the water-cement ratio of the grouting liquid is increased to reduce the solidification speed of the grouting liquid, so that the height change speed of the lifting point of the building is reduced; otherwise, the solidification speed of the grouting liquid is increased, so that the height change speed of the lifting point of the building is increased. According to the method, the proportion of grouting liquid is adjusted according to the reinforcement lifting speed of the lifting point, so that the control on the reinforcement lifting speed of the building can be realized, and the physical impact on the rapid change of the grouting point caused by directly adjusting the speed of the grouting pump can be reduced.
The present application may be further configured in a preferred example that the proportioning adjustment signal includes a rapid hardening increase signal and a rapid hardening decrease signal;
the grouting liquid is double grouting liquid, and the method for outputting a ratio adjusting signal to the grouting pump (2) according to the height change speed to change the solidification speed of the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a quick setting reduction signal to the grouting pump (2) to reduce the proportion of quick setting components in the double grout, so as to reduce the solidification speed of the grouting liquid;
if the height change speed is less than the minimum value of the preset reinforcement lifting speed, outputting a quick setting improvement signal to the grouting pump (2) to improve the proportion of quick setting components in the double grout, so as to improve the setting 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, the double-slurry is used as a common slurry for grouting, and the solidification speed of the grouting liquid can be adjusted by adjusting the proportion of the double-slurry. According to the scheme, the solidification speed of the double-slurry is adjusted according to the height change speed, and finally, the automatic adjustment of the height change speed of the lifting point is realized.
The present application may be further configured in a preferred example that the quick setting component comprises at least water glass.
In a preferred example, the present application may be further configured to output an alarm driving signal to an alarm device if any one of a condition that the height data is in a decreasing trend and a condition that the value of the height data is equal to or greater than the preset height value exists, so that the alarm device gives 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 application can be further configured in a preferred example, it includes stage height and predetermines final height to predetermine the height, when the numerical value of height data equals or is greater than predetermine final height, to grouting pump output stop signal, and in predetermineeing the monitoring time behind the output stop signal height data numerical value decline range surpasss and predetermines stability range, then outputs the start signal to the grouting pump, until after the output stop signal predetermine in the monitoring time height data numerical value decline range is located predetermine stability range.
In a second aspect, the present application further provides a system for monitoring grouting, reinforcing and lifting of an existing building in real time, including:
the data acquisition module is used for acquiring height data of a reinforcing and lifting point in the grouting reinforcing and lifting process;
the speed calculation module is used for calculating the height change speed of the reinforcement lifting point according to the height data;
and a control module for
When the height data is in a decreasing trend, outputting a stop signal to the grouting pump (2) 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 the grouting pump according to the height change speed to change the speed of injecting grouting liquid, and/or outputting a ratio adjusting signal to the grouting pump according to the height change speed to change the ratio of the grouting liquid, so as to change the solidification speed of the grouting liquid;
and when the height data value is equal to or greater than the preset height value, outputting a stop signal to the grouting pump to stop the grouting pump.
In a preferred example, the grouting reinforcement lifting process may further include a plurality of grouting stages, and each grouting stage adopts a grouting pump adjusting manner and/or a grouting liquid adjusting manner; in the grouting stage adopting a grouting pump adjusting mode, the control module outputs a speed adjusting signal to a grouting pump so as to adjust the speed of injecting grouting liquid by synchronously adjusting the power of the grouting pump; 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 reinforcing and lifting speed of the building by adjusting the solidification speed of the grouting liquid.
The present application may be further configured in a preferred example that the speed adjustment signal comprises a speed increase signal and a speed decrease signal;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a speed reduction signal to the grouting pump to synchronously reduce the power of the grouting pump, so that the speed of grouting liquid injection is reduced;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a speed increasing signal to the grouting pump to synchronously increase the power of the grouting pump, so that the grouting speed is increased;
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, the proportioning adjustment signal includes a water-cement ratio increase signal and a water-cement ratio decrease signal, and the grouting liquid is a single grouting liquid;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a water-cement ratio improvement signal to the grouting pump to improve the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is reduced;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a water-cement ratio reduction signal to the grouting pump to reduce the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is reduced;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
In a preferred example, the proportioning adjustment signal includes a rapid hardening increase signal and a rapid hardening decrease signal, and the grouting liquid is a double grouting liquid;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a quick setting reduction signal to the grouting pump to reduce the proportion of quick setting components in the double grout, so as to reduce the solidification speed of the grouting liquid;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a quick setting improvement signal to the grouting pump to improve the proportion of quick setting components in the double grout, so as to improve 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.
In a preferred example of the present application, the control module may be further configured to be further connected to an alarm device, and when any one of a condition that the height data is in a decreasing trend and a condition that 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 application can further configure to in a preferred example, predetermine the height including predetermineeing stage height and predetermineeing final height, when the numerical value of height data equals or is greater than predetermineeing final height, control module exports stop signal to the grouting pump, and in the monitoring time predetermineeing behind the output stop signal height data numerical value decline range surpasss predetermineeing stability range, then control module exports start signal to the grouting pump, until control module exports behind the stop signal predetermine in the monitoring time height data numerical value decline range is located predetermineeing stability range.
In a third aspect, the application further provides a real-time monitoring device for grouting reinforcement and lifting of the existing building, which comprises the real-time monitoring system for grouting reinforcement and lifting of the existing building.
Drawings
Fig. 1 is a schematic structural diagram of grouting reinforcement and lifting construction of an existing building in the application.
Fig. 2 is a flowchart of a method for monitoring grouting reinforcement lifting of an existing building in real time according to an embodiment.
FIG. 3 is a flow chart of adjusting the output power of the grouting pump according to the altitude change speed in the first embodiment.
Fig. 4 is a system diagram of the existing building grouting reinforcement lifting real-time monitoring system in the application.
Fig. 5 is a schematic structural view of grouting reinforcement and lifting construction of an existing building in the second embodiment.
In the figure, 1, a grouting pipe; 2. grouting pump; 3. a pipeline; 4. and (4) material source.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The construction engineering grouting refers to a method for injecting certain curable grout into a geotechnical ground by using a proper method, and improving the physical and mechanical properties of the grout through replacement, filling, extrusion and the like. The application provides a method, a system and a device for monitoring grouting reinforcement and lifting of an existing building in real time, which aim to realize detection of process data and further automatic intelligent regulation of grouting speed and height in the grouting reinforcement and lifting process of the existing building.
The first embodiment;
referring to fig. 1, in the building grouting reinforcement lifting described in this embodiment, a grouting pump 2 is adopted to inject a plurality of raw materials into a grouting pipe 1 to mix into grouting liquid, and then the grouting liquid is injected below a reinforcement lifting point through the grouting pipe 1 and is injected below the reinforcement lifting point to play a role in supporting a building after the grouting liquid below the reinforcement lifting point is solidified. The material source of each raw material is communicated with a grouting pipe 1 through an independent pipeline 3, and each pipeline 3 is provided with a grouting pump 2. The grouting liquid in this embodiment is a single grout or a double grout, preferably a double grout, the composition of the double grout at least includes cement and water glass, and some other raw materials can be added to the construction site according to the geological conditions to change the characteristics of the double grout, which is not limited herein. The reinforcing lifting points, the grouting holes and the grouting pipes 1 correspond one to one.
Referring to fig. 1 and 2, based on a grouting process of an existing building, the embodiment provides a real-time monitoring method for grouting, reinforcing and lifting of the existing building, and the method is a real-time monitoring method for a single reinforcing and lifting point. Specifically, acquiring height data of a reinforcing and lifting point in a grouting reinforcing and lifting process; calculating the height change speed of the reinforced lifting point 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 the ascending trend and the height data value is lower than the preset height value, outputting a speed adjusting signal to the grouting pump 2 according to the height change speed to change the output power of the grouting pump 2; 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, so that the grouting pump 2 stops working. Because the output power of the grouting pump 2 is adjusted through the height change speed, the safety monitoring of the grouting process is realized, and the control precision of the grouting process and the safety of the grouting process are improved.
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. Adopt the mode that acquires automatically to measure the level of consolidating the lifting point in this embodiment, it is concrete, at the fixed big dipper monitoring station of installation of consolidating the lifting point, adopt big dipper positioning technology to realize the altitude measurement to big dipper monitoring station, and then realize the altitude measurement to consolidating the lifting point to obtain the altitude data of consolidating the lifting point.
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 grouting stage that begins, because the slip casting liquid that pours into the slip casting hole interacts with the soil layer of slip casting position, the situation that has the slip casting period to consolidate the decline of lifting point height 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 fit for carrying out automatic slip casting regulation again, at this moment to 2 output stop signal of grouting pump, make 2 stop work of grouting pump, later change again and do artificial regulation by field work personnel, in order to ensure the safety of slip casting reinforcement lifting process.
Referring to fig. 1 and 3, after the initial grouting stage is passed and grouting is performed again, the altitude data will be in an ascending trend 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 by changing the output power of the grouting pump 2 to change the grouting speed during the grouting period. If the height change speed is greater than the maximum value of the preset reinforcement lifting speed, the lifting speed of the reinforcement lifting point is greater than the preset speed, and a speed reduction signal is output to the grouting pump 2 to synchronously reduce the output power of the grouting pump 2, namely, the speed of grouting liquid injection is reduced; if the height change speed is less than the minimum value of the preset reinforcement lifting speed, the lifting speed of the reinforcement lifting point is lower than the preset speed, and a speed increasing signal is output to all grouting pumps 2 to synchronously improve the output power of the grouting pumps 2, namely, the speed of conveying raw materials of the grouting pumps 2 is increased in the same proportion, so that the speed of injecting grouting liquid is increased when the grouting liquid mixed in the grouting pipes 2 is in a state of unchanged proportion. 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 actual situation of the reinforcement lifting point.
Further, a plurality of different values which are linearly changed are preset in the output power of the grouting pump 2, the power of the given grouting pump 2 jumps among the different values in a mode of adjusting the output power of the grouting pump 2 according to the speed increasing signal or the speed decreasing signal, and the change rate of the height change speed is used as the basis for setting the jump size. If the output power of the grouting pump 2 is eta 1, eta 2, eta 3 … eta n (n is a natural number) in sequence, and the initial power of the grouting pump 2 is eta k (k is a natural number), when the altitude change speed is lower than the minimum value of the preset reinforcement lifting speed, the output power of the grouting pump 2 can be set to be eta k-1, eta k-2, eta k-5 and the like according to the change rate of the altitude change speed; when the height change speed is higher than the maximum value of the preset reinforcement lifting speed, the output power of the grouting pump 2 can be set to be eta k +1, eta k +2 or eta k +5 according to the change rate of the height change speed; the greater the rate of change of the altitude change speed, the greater the jump in output power of the given grouting pump 2 compared to η k. The linear relation between the change rate of the altitude change speed and the power jump size of the grouting pump 2 can be set according to the condition of a construction site.
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. 1 and 4, the present application also provides a real-time monitoring system for grouting reinforcement and lifting of an existing building, including:
the data acquisition module is used for acquiring height data of a reinforcing and lifting point in the grouting reinforcing and lifting process;
the speed calculation module is used for calculating the height change speed of the reinforced lifting point according to the height data;
and a control module for
When the height data is in a decreasing trend, outputting 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 change speed to change the output power of the grouting pump 2;
and when the height data value is equal to or greater than the preset height value, outputting a stop signal to the grouting pump 2 to stop the grouting pump 2.
The control module may refer to the above-mentioned existing building grouting reinforcement lifting real-time monitoring method, and details thereof are not repeated herein, in a manner of adjusting the output power of the grouting pump 2, that is, a manner of outputting a speed adjustment signal, according to the height data and/or the height change speed.
The Beidou monitoring station is fixedly installed at the reinforcement lifting point in the grouting reinforcement lifting process, so that the horizontal height of the reinforcement lifting point is measured in real time through the Beidou positioning technology.
Preferably, the data acquisition module, the 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 the detected height data of the Beidou monitoring station through the Beidou positioning network; on the other hand, the worker can acquire data such as height data, height change speed and output power of the grouting pump 2 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, the linear relation between the change rate of the height change speed and the power jump size of the grouting pump 2 and the like applied in the process of implementing the existing building grouting reinforcement lifting real-time 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 greater 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 generating the alarm signal among the alarm devices is preferably a buzzer.
In one example, the application further provides a real-time monitoring device for grouting reinforcement and lifting of the existing building, which comprises the real-time monitoring system for grouting reinforcement and lifting of the existing building.
According to the above contents, the automatic detection of the height data of the lifting point in the grouting reinforcement lifting is realized, and the work of the grouting pump 2 is automatically controlled according to the height data, so that compared with the manual control of the grouting process, the labor cost is reduced, the probability of construction safety accidents in the reinforcement lifting process caused by human errors or delays is also reduced, and the automatic monitoring and control of the grouting reinforcement lifting of the existing building are realized.
Example two:
referring to fig. 1 and 5, the present embodiment is different from the first embodiment in that: when the height data is in the ascending trend and the height data value is lower than the preset height value, a proportioning adjusting signal is output to the grouting pump according to the height change speed so as to change the proportioning of the grouting liquid and further change the solidification speed of the grouting liquid. The difference between the first embodiment and the second embodiment is described in the following only in terms of a real-time monitoring method for grouting reinforcement and lifting of an existing building. The proportioning adjustment signal is a signal for adjusting the working power of the grouting pump 2 under the condition that the total of the conveying flows of all the grouting pumps 2 is controlled to be unchanged.
In one example, the grouting liquid is a single grouting liquid formed by mixing and stirring cement and water, namely, the grouting pipe 1 is connected with two material sources 4, and the two material sources 4 respectively contain the cement and the water.
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, so that the lifting speed of the reinforcing grouting liquid is changed. The proportioning adjustment signal comprises a water-cement ratio increasing signal and a water-cement ratio decreasing signal.
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, the rising speed of the reinforcement lifting point is higher than the preset speed, and a water-cement ratio reduction signal is output to the grouting pump 2. The grouting pump 2 for conveying water receives the water-cement ratio reduction signal and then the working power is increased, and the grouting pump 2 for conveying cement receives the water-cement ratio reduction signal and then the working power is reduced, so that the water-cement ratio of the grouting liquid formed by mixing cement and water is reduced.
And when the height change speed is less than the minimum value of the preset reinforcement lifting speed, the lifting speed of the reinforcement lifting point is lower than the preset speed, and a water-cement ratio improvement signal is output to the grouting liquid synthesizing device. The grouting pump 2 for conveying water reduces the working power after receiving the water cement ratio reduction signal, and the grouting pump 2 for conveying cement improves the working power after receiving the water cement ratio reduction signal, so that the water cement ratio of the grouting liquid formed by mixing cement and water is improved.
In another example, the grouting liquid is a double grouting liquid formed by mixing and stirring cement and a quick setting component, wherein the quick setting component is preferably water glass, namely, the grouting pipe 1 is connected with three material sources 4, and the three material sources 4 respectively contain water, cement and water. When the double slurry is prepared, some additional additives may be added to the quick setting component, and are not particularly limited herein.
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 proportion of quick-setting components in the grouting liquid on the premise of not changing the volume of the grouting liquid below the reinforcing and lifting point in unit time, so that the reinforcing and lifting speed of the grouting liquid is changed. The proportioning adjustment signal includes a rapid hardening increase signal and a rapid hardening decrease signal.
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, the rising speed of the reinforcement lifting point is higher than the preset speed, and a rapid hardening reduction signal is output to the grouting pump 2. The working power of the grouting pump 2 for conveying the rapid hardening component is reduced after receiving the rapid hardening reduction signal, and the working power of the grouting pump 2 for conveying water is improved after receiving the rapid hardening reduction signal, so that the proportion of the rapid hardening component in the grouting liquid formed by mixing water, cement and the rapid hardening component is reduced.
When the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, the lifting speed of the reinforcement lifting point is lower than the preset speed, and a quick setting improvement signal is output to the grouting pump 2. The grouting pump 2 for conveying the rapid hardening component increases the working power after receiving the rapid hardening improvement signal, and the grouting pump 2 for conveying water decreases the working power after receiving the rapid hardening improvement signal, so that the intermediate-speed hardening component proportion of the grouting liquid increases.
In the system for monitoring grouting, reinforcing and lifting of an existing building in real time provided by this embodiment, the control module outputs a proportioning adjustment signal according to the height data and/or the height variation speed to adjust the solidification speed of the grouting liquid, which may refer to the method for monitoring grouting, reinforcing and lifting of an existing building in real time in this embodiment and is not described herein again.
The method for adjusting the solidification speed of the grouting liquid according to the reinforcement lifting speed not only realizes the automatic control of the grouting reinforcement lifting process of the existing building, but also reduces the probability of sudden rise or sudden fall of the building caused by equipment problems.
Example three:
with reference to fig. 1, the difference between the present embodiment and the second and first embodiments is described in terms of a real-time monitoring method for grouting reinforcement and lifting of an existing building:
and 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 one example, each grouting stage is adjusted in a unique manner, and the adjustment manner of each grouting stage is preset in the control module. If the height data is in the ascending trend, and the height data value is lower than the preset height value, according to the height change speed, a proportioning adjusting signal is output to the grouting pump 2 at the grouting stage adopting the grouting liquid adjusting mode, a speed adjusting signal is output to the grouting pump 2 at the grouting stage adopting the grouting liquid 2 adjusting mode, and then the grouting reinforcement lifting speed is changed. The speed adjustment signal includes a speed increase signal and a speed decrease signal. The operation process of the grouting pump 2 when receiving the speed adjustment signal and the ratio adjustment signal is the same as that in the first and second embodiments, and is not described again here.
In another example, a grouting pump adjusting mode and a grouting liquid adjusting mode are adopted in any grouting stage, and the adjusting mode of each grouting stage is preset in the control module. Preferably, the first three grouting stages all adopt a grouting pump adjusting mode and a grouting liquid adjusting mode, the fourth grouting stage adopts a grouting pump adjusting mode, and the rest grouting stages all adopt grouting liquid adjusting modes. In the grouting process adopting the grouting pump adjusting mode and the grouting liquid adjusting mode, if the height data is in the ascending trend and the height data value is lower than the preset height value, a proportioning adjusting signal and a speed adjusting signal are output to the grouting pump 2 according to the height change speed.
In the system for monitoring grouting, reinforcing and lifting of an existing building in real time provided by this embodiment, the control module outputs the ratio adjusting signal and the speed adjusting signal according to the height data and/or the height change speed to adjust the solidification speed of the grouting liquid, which may refer to the method for monitoring grouting, reinforcing and lifting of an existing building in real time in this embodiment and is not described herein again.
The solidification speed of the grouting liquid is adjusted according to the reinforcing and lifting speed, the output power of the grouting pump 2 is synchronously adjusted, automatic control over the grouting and reinforcing and lifting process of the existing building is achieved, and quick adjustment of the grouting and reinforcing and lifting speed is also met.
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 (16)
1. A real-time monitoring method for grouting reinforcement and lifting of an existing building is characterized by comprising the following steps:
acquiring height data of a reinforcing and lifting point in a grouting reinforcing and lifting process;
calculating the height change speed of the reinforced lifting point 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 change speed to change the speed of grouting liquid, and/or outputting a proportioning adjusting signal to the grouting pump (2) according to the height change speed 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 larger than the preset height numerical value, outputting a stop signal to the grouting pump (2) to stop the grouting pump (2).
2. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is characterized in that: 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 (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 method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is characterized in that: the speed adjustment signal comprises a speed increase signal and a speed decrease signal;
the method for outputting a speed adjusting signal to the grouting pump (2) according to the height change speed to change the speed of injecting the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a speed reduction signal to the grouting pump (2) to synchronously reduce the power of the grouting pump so as to reduce the speed of injecting the grouting liquid;
if the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a speed increasing signal to the grouting pump (2) to synchronously increase the power of the grouting pump (2), so that the grouting speed is increased;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
4. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is characterized in that: the proportioning adjusting signal comprises a water-cement ratio increasing signal and a water-cement ratio decreasing signal;
the grouting liquid is single grouting liquid, and the method for outputting a ratio adjusting signal to the grouting liquid synthesizing device according to the height change speed to change the solidification speed of the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a water-cement ratio increasing signal to the grouting pump (2) to increase the water-cement ratio of the grouting liquid, so as to reduce the solidification speed of the grouting liquid;
if the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a water-cement ratio reduction signal to the grouting pump (2) to reduce the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is increased;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
5. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is characterized in that: the proportioning adjustment signal comprises a rapid hardening improvement signal and a rapid hardening reduction signal;
the grouting liquid is double grouting liquid, and the method for outputting a ratio adjusting signal to the grouting pump (2) according to the height change speed to change the solidification speed of the grouting liquid comprises the following steps:
if the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a quick setting reduction signal to the grouting pump (2) to reduce the proportion of quick setting components in the double grout, so as to reduce the solidification speed of the grouting liquid;
if the height change speed is less than the minimum value of the preset reinforcement lifting speed, outputting a quick setting improvement signal to the grouting pump (2) to improve the proportion of quick setting components in the double grout, so as to improve the setting 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.
6. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 5, is characterized in that: the quick-setting component at least comprises water glass.
7. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is 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.
8. The method for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 1 is 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.
9. The utility model provides an existing building slip casting reinforcement lifting real-time supervision system which characterized in that includes:
the data acquisition module is used for acquiring height data of a reinforcing and lifting point in the grouting reinforcing and lifting process;
the speed calculation module is used for calculating the height change speed of the reinforcement lifting point according to the height data;
and a control module for
When the height data is in a decreasing trend, outputting 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 change speed to change the speed of grouting liquid, and/or outputting a ratio adjusting signal to the grouting pump (2) according to the height change speed to change the ratio of the grouting liquid, so as to change the solidification speed of the grouting liquid;
and when the height data value is equal to or larger than the preset height value, outputting a stop signal to the grouting pump (2) to stop the grouting pump (2).
10. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is characterized in that: 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, the control module outputs a speed adjusting signal to the grouting pump (2) so as to adjust the speed of injecting the grouting liquid by synchronously adjusting the power of the grouting pump (2); in the grouting stage adopting a grouting liquid adjusting mode, the control module outputs a proportioning adjusting signal to the grouting pump (2) so as to change the reinforcing and lifting speed of the building by adjusting the solidification speed of the grouting liquid.
11. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is characterized in that: the speed adjustment signal comprises a speed increase signal and a speed decrease signal;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a speed reduction signal to the grouting pump (2) to synchronously reduce the power of the grouting pump (2), so as to reduce the speed of grouting liquid injection;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a speed increasing signal to the grouting pump (2) to synchronously increase the power of the grouting pump (2), so that the grouting liquid injection speed is increased;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
12. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is characterized in that: the proportioning adjustment signals comprise a water-cement ratio increasing signal and a water-cement ratio decreasing signal, and the grouting liquid is single slurry;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a water-cement ratio increasing signal to the grouting pump (2) to increase the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is reduced;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a water-cement ratio reduction signal to the grouting pump (2) to reduce the water-cement ratio of the grouting liquid, so that the solidification speed of the grouting liquid is reduced;
the maximum value of the preset reinforcement lifting speed is not less than the minimum value of the preset reinforcement lifting speed.
13. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is characterized in that: the proportioning adjustment signal comprises a quick setting increasing signal and a quick setting decreasing signal, and the grouting liquid is double-slurry;
the control module
When the height change speed is greater than the maximum value of the preset reinforcement lifting speed, outputting a quick setting reduction signal to the grouting pump (2) to reduce the proportion of quick setting components in the double grout, so as to reduce the solidification speed of the grouting liquid;
when the height change speed is smaller than the minimum value of the preset reinforcement lifting speed, outputting a quick setting improvement signal to the grouting pump (2) to improve the proportion of quick setting components in the double grout, so as to improve the setting 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.
14. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is 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.
15. The system for monitoring grouting, reinforcing and lifting of the existing building in real time according to claim 9, is characterized in that: the height of presetting including presetting stage height and presetting final height, when the numerical value of height data equals or is greater than and presets final height, control module exports stop signal to grouting pump (2), and in the monitoring time of presetting behind the output stop signal height data numerical value decline range surpasss and presets stability range, then control module exports start signal to grouting pump (2), until behind control module output stop signal predetermine in the monitoring time height data numerical value decline range is located predetermine stability range.
16. An existing building grouting reinforcement lifting real-time monitoring device, comprising the existing building grouting reinforcement lifting real-time monitoring system of any one of claims 9 to 15.
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