CN110927362A - Civil engineering building monitoring system - Google Patents

Civil engineering building monitoring system Download PDF

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CN110927362A
CN110927362A CN201911250480.6A CN201911250480A CN110927362A CN 110927362 A CN110927362 A CN 110927362A CN 201911250480 A CN201911250480 A CN 201911250480A CN 110927362 A CN110927362 A CN 110927362A
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construction
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CN110927362B (en
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吴艳丽
曹瑞峰
王丹
阴钰娇
孙金林
任利敏
徐云雷
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Huanghe Jiaotong University
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    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24Earth materials
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00Investigation of foundation soil in situ
    • E02D1/02Investigation of foundation soil in situ before construction work
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid

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Abstract

The invention provides a civil engineering building monitoring system, which comprises a central processing unit and is characterized in that the central processing unit is respectively and electrically connected with each module of a monitoring subsystem before construction, a monitoring subsystem during construction and a monitoring subsystem after construction; the pre-construction monitoring subsystem comprises a geological data acquisition module, a foundation pit monitoring module and an enclosure monitoring module; the monitoring subsystem during construction comprises a settlement monitoring module, an inclination monitoring module and an underground pipeline monitoring module; the invention provides a civil engineering building monitoring system which can monitor the change condition of a building in an all-around way in three stages of before construction, in the construction process and after construction, and can arrange the monitoring data and feed the data back to a central processing unit and take corresponding measures in time when abnormal conditions occur.

Description

Civil engineering building monitoring system
Technical Field
The invention belongs to the technical field of building monitoring, and particularly relates to a civil engineering building monitoring system.
Background
Along with the rapid development of economy, the living standard of people is greatly improved, the civil engineering construction becomes more and more important in urban development, and in the process of the civil engineering construction, in order to ensure the safety of the construction, the civil engineering construction monitoring system is used for monitoring the construction from two aspects of software and hardware, and the smooth and reliable construction can be ensured by monitoring the construction.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a civil engineering building monitoring system which can monitor the change condition of a building in an all-around way in three stages of before construction, in the construction process and after construction, can reflect the slight change of the building by monitoring the settlement state of a foundation pit and the building during construction and feeds back the change to a central processing unit in time.
The technical scheme of the invention is as follows: a civil engineering building monitoring system comprises a monitoring subsystem before construction and a monitoring subsystem after construction;
the monitoring subsystem before construction comprises a foundation pit monitoring module, the foundation pit monitoring module is used for monitoring foundation pit deformation and foundation pit support structure deformation at any time before civil engineering construction, the sensor acquisition nodes are arranged on the side surface and the bottom of the deep foundation pit body and comprise sensor acquisition nodes for acquiring foundation pit surface displacement, deep displacement monitoring, ground water level monitoring and stress strain monitoring, real-time data acquisition of stratum geology and hydrology in a deep foundation pit region is realized, and each sensor acquisition node sends acquired deep foundation pit environment data to a central processing unit for storage and preservation;
the monitoring subsystem during construction is used for monitoring the sag change of a building and the deformation and breakage of the underground pipeline in the construction process of the building layer by layer, transmitting the acquired data to the central processing unit for storage and preservation, comparing the acquired data with the preset sag change of the building and the deformation of the underground pipeline by the central processing unit, and transmitting a signal to the alarm to give an alarm if the acquired deformation exceeds the standard deformation;
the monitoring subsystem after construction is used for continuously monitoring the building after the building is constructed, monitoring the stress change of the building and the change of the environment where the building is located by an internal stress sensor poured in the building during construction, predicting the possible problems of the building and further ensuring the safety of the building.
The sensor acquisition nodes of the foundation pit monitoring module comprise a GPS, a static level gauge, a fixed inclinometer, an osmometer, a strain gauge, a soil pressure gauge and the like which are arranged in the foundation pit; the GPS or static level gauge is used for collecting the surface displacement of the foundation pit; the fixed inclinometer or the multi-point displacement meter is used for acquiring deep displacement; the osmometer is used for monitoring the underground water level; the strain gauge, the soil pressure gauge and the like are used for monitoring stress strain;
the pre-construction monitoring subsystem further comprises a geological data acquisition module and an envelope monitoring module; the geological data acquisition module is used for acquiring geological data of a monitored object, acquiring the geological data of the monitored object on site by using modes of outcrop observation, drilling, pit detection, core identification and the like, and sending the acquired data to the central processing unit; the building envelope monitoring module comprises a plurality of fixed inclinometers and strain gauges which are arranged at different positions of the building envelope, wherein the fixed inclinometers are used for monitoring the displacement of the building envelope, the strain gauges are used for monitoring the deformation of the building envelope, and the fixed inclinometers and the strain gauges send acquired data to the central processing unit;
the construction time monitoring subsystem comprises a settlement monitoring module, an inclination monitoring module and an underground pipeline monitoring module; the settlement monitoring module is used for monitoring the settlement state of the building in the building process, a plurality of settlement monitoring points are uniformly arranged on the ground and the surface of the building along the transverse direction and the longitudinal direction of the building, a static level gauge is arranged at the plurality of settlement monitoring points, and the static level gauge sends monitored data to the central processing unit to determine a relation curve of ground settlement; the inclination monitoring module is used for monitoring the inclination state of a building in the building process, a plurality of sag monitoring points are uniformly distributed at the four corners and the middle part of each layer in the building layer-by-layer building process, a static level gauge is placed at each sag monitoring point, the sag change of the building is monitored by using the static level gauge, and data are sent to the central processing unit; the underground pipeline monitoring module is used for monitoring the deformation, fracture and other conditions of the underground pipeline in real time in the building process, simultaneously burying an osmometer, a crack meter and the like to monitor the deformation and fracture of the underground pipeline when the underground pipeline is buried, and sending monitoring data to the central processing unit;
the post-construction monitoring subsystem comprises a building internal stress monitoring module, a surrounding environment data acquisition module and an evaluation analysis module; the internal stress monitoring module is used for collecting the internal stress of the building, pouring an internal stress sensor in the building when the building is constructed, and sending collected data to the central processing unit; the peripheral environment data acquisition module comprises a temperature sensor, a humidity sensor, a moisture sensor and the like, and is respectively used for acquiring the temperature, the humidity and the precipitation of the environment where the building is located and sending detected data to the central processing unit; the evaluation and analysis module is used for receiving the collected data, sorting the data, comparing the data with a standard numerical value and sending an analysis result to the central processing unit.
The monitoring subsystem during construction further comprises a data calculation module, wherein the data calculation module is used for automatically generating data tables, analysis graphs and the like according to the monitored data;
the data calculation module is also connected with the display module, and displays the data table and the analysis graphs such as column diagrams and line diagrams generated after arrangement on a display screen through the display module.
The invention has the beneficial effects that:
1. the invention is provided with a monitoring subsystem before construction, the monitoring subsystem before construction analyzes the geological condition of construction according to the geological data of the collected monitoring object, determines the safety quality grade of the monitoring object according to the geological condition, formulates a detailed monitoring scheme, and is also provided with a foundation pit monitoring module, because the redistribution of the foundation stress inside and outside the foundation pit can cause the deformation of an enclosure structure and the surrounding soil body, thereby possibly endangering the foundation pit, the stability of the main structure and the safety of surrounding buildings and underground pipelines, the invention is provided with the foundation pit monitoring module, a plurality of sensor collecting nodes are arranged in the side surface and the bottom of the foundation pit body to monitor the change of the foundation pit at any time, and the data are sent to a central processing unit; meanwhile, the foundation pit support structure can be monitored, and the change condition of the foundation pit support structure is monitored in real time by using a sensor, so that the safety and reliability of the construction of the building foundation are ensured.
2. The invention is provided with a construction monitoring subsystem, which monitors the change condition of the building in real time in the construction process, and the landform of the building can be subjected to uneven settlement in the construction process, so that the uneven settlement can be generated in the landform, and the monitoring of the settlement of the building ground and the building is necessary; simultaneously this application still evenly lays a plurality of monitoring points in floor four corners and middle part, also utilizes the hydrostatic level to monitor the change of building plumbing for monitor the tilt state of building at any time.
3. The invention is provided with a monitoring subsystem after construction to monitor the change condition of the building after the construction of the building according to the internal stress of the building and the surrounding environment of the building, thereby further ensuring the safety of the building.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a pre-construction monitoring subsystem of the present invention;
FIG. 3 is a schematic structural diagram of a monitoring subsystem during construction according to the present invention;
FIG. 4 is a schematic structural diagram of a post-construction monitoring subsystem according to the present invention.
Description of reference numerals:
1. a central processing unit;
2. a pre-construction monitoring subsystem; 21. a geological data acquisition module; 22. a foundation pit monitoring module; 23. a building envelope monitoring module;
3. monitoring the subsystem during construction; 31. a settlement monitoring module; 32. a tilt monitoring module; 33. an underground pipeline monitoring module; 34. a data calculation module; 35. a display module;
4. a monitoring subsystem after construction; 41. a building internal stress monitoring module; 42. a peripheral environment data acquisition module; 43. and an evaluation analysis module.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
Example 1:
the embodiment of the invention provides a civil engineering building monitoring system, which comprises a monitoring subsystem 3 before construction 2 during construction and a monitoring subsystem 4 after construction;
the pre-construction monitoring subsystem 2 comprises a foundation pit monitoring module 22, the foundation pit monitoring module 22 is used for monitoring foundation pit deformation and foundation pit support structure deformation at any time before civil engineering construction, sensor acquisition nodes are arranged on the side surface and the bottom of a deep foundation pit body and comprise sensor acquisition nodes used for acquiring foundation pit surface displacement, deep displacement monitoring, underground water level monitoring and stress strain monitoring, real-time data acquisition of stratum geology and hydrology in a deep foundation pit region is realized, and each sensor acquisition node sends acquired deep foundation pit environment data to the central processing unit 1 for storage;
the construction monitoring subsystem 2 is used for monitoring the sag change of a building and the deformation and breakage of an underground pipeline in the building layer-by-layer construction process, sending the collected data to the central processing unit 1 for storage and preservation, comparing the collected data with the preset sag change of the building and the deformation of the underground pipeline by the central processing unit 1, and sending a signal to an alarm to give an alarm if the collected deformation exceeds the standard deformation;
the post-construction monitoring subsystem 4 is used for continuously monitoring the building after the building is constructed, monitoring the stress change of the building and the change of the environment where the building is located by an internal stress sensor poured in the building during construction, predicting the possible problems of the building and further ensuring the safety of the building.
Example 2:
this example is based on example 1:
the sensor acquisition nodes of the foundation pit monitoring module 22 comprise a GPS, a static level gauge, a fixed inclinometer, an osmometer, a strain gauge, a soil pressure gauge and the like which are arranged in the foundation pit; the GPS or static level gauge is used for collecting the surface displacement of the foundation pit; the fixed inclinometer or the multi-point displacement meter is used for acquiring deep displacement; the osmometer is used for monitoring the underground water level; the strain gauge, the soil pressure gauge and the like are used for monitoring stress strain;
the pre-construction monitoring subsystem 2 further comprises a geological data acquisition module 21 and an envelope monitoring module 23; the geological data acquisition module 21 is configured to acquire geological data of a monitored object, acquire the geological data of the monitored object on site in the modes of outcrop observation, drilling, pit detection, core identification and the like, and send the acquired data to the central processing unit 1; the building envelope monitoring module 23 comprises a plurality of fixed inclinometers and strain gauges which are arranged at different positions of the building envelope, the fixed inclinometers are used for monitoring the displacement of the building envelope, the strain gauges are used for monitoring the deformation of the building envelope, and the fixed inclinometers and the strain gauges send acquired data to the central processing unit 1.
The invention is provided with a pre-construction monitoring subsystem 2, the pre-construction monitoring subsystem 2 is provided with a geological data acquisition module 21, the geological data acquisition module 21 analyzes the geological condition of construction according to the geological data of the collected monitoring object, determines the safety quality level of the monitoring object according to the geological condition, and formulates a detailed monitoring scheme; in the stage of digging and setting a foundation pit before formal construction, redistribution of the stress of the foundation pit inside and outside can cause deformation of the enclosure structure and the surrounding soil body, so that the foundation pit can be endangered, the stability of the main structure and the safety of surrounding buildings and underground pipelines are possibly endangered, therefore, the foundation pit monitoring module 22 is arranged, a plurality of sensor acquisition nodes are arranged in the side surface and the bottom of the foundation pit body, and a GPS or a static level arranged in the foundation pit is used for acquiring the surface displacement of the foundation pit; the fixed inclinometer or the multi-point displacement meter is arranged in the foundation pit and is used for acquiring deep displacement; the osmometer arranged in the foundation pit is used for monitoring the underground water level; strain gauges, soil pressure gauges and the like which are arranged in the foundation pit are used for monitoring stress strain, and each sensor acquisition node transmits acquired environmental data of the deep foundation pit to a central processing unit; meanwhile, the building foundation construction safety monitoring system is further provided with a building enclosure monitoring module 23, the building enclosure monitoring module 23 comprises a plurality of fixed inclinometers and strain gauges which are arranged at different positions of the building enclosure, the displacement of the building enclosure is monitored by the fixed inclinometers, the deformation of the building enclosure is monitored by the strain gauges, and the acquired data are sent to the central processing unit 1 by the fixed inclinometers and the strain gauges, so that the safety and the reliability of building foundation construction are ensured.
Example 3:
this example is based on example 1:
the construction monitoring subsystem 3 comprises a settlement monitoring module 31, an inclination monitoring module 32 and an underground pipeline monitoring module 33; the settlement monitoring module 31 is used for monitoring the settlement state of the building in the building process, a plurality of settlement monitoring points are uniformly arranged on the ground and the surface of the building along the transverse direction and the longitudinal direction of the building, a static level gauge is arranged at the plurality of settlement monitoring points, and the static level gauge sends the monitored data to the central processing unit 1 to determine the relation curve of the ground settlement;
the inclination monitoring module 32 is used for monitoring the inclination state of the building in the building process, a plurality of sag monitoring points are uniformly distributed at the four corners and the middle part of each layer in the building layer-by-layer building process, a static level gauge is placed at each sag monitoring point, the sag change of the building is monitored by using the static level gauge, and data are sent to the central processing unit 1;
the underground pipeline monitoring module 33 is used for monitoring deformation, fracture and other conditions of the underground pipeline in real time in the building process, simultaneously burying an osmometer, a crack meter and the like to monitor deformation and fracture of the underground pipeline when the underground pipeline is buried, and sending monitoring data to the central processing unit 1;
the monitoring subsystem 3 during construction further comprises a data calculation module 34, wherein the data calculation module 34 is used for automatically generating data tables, analysis graphs and the like according to monitored data; the data calculation module (34) is also connected with a display module (35), and the data table and the analysis graphs such as column diagrams and line diagrams generated after arrangement are displayed on a display screen through the display module (35).
The invention is provided with a construction monitoring subsystem 3 which monitors the change condition of the building in real time in the construction process, and the building can be unevenly settled due to different terrains of all parts in the construction process, so that the monitoring of the settlement of the building ground and the building is necessary under the condition that the terrains can be unevenly settled; simultaneously this application is at the successive layer building in-process, evenly has laid a plurality of monitoring points in the four corners and the middle part of building floor for the change of monitoring building plumbing, be used for monitoring the tilt state of building at any time.
Example 4:
this example is based on example 1:
the post-construction monitoring subsystem 4 comprises a building internal stress monitoring module 41, a surrounding environment data acquisition module 42 and an evaluation analysis module 43;
the internal stress monitoring module 41 is used for acquiring the internal stress of the building, pouring an internal stress sensor in the building during building construction, and sending acquired data to the central processing unit 1;
the peripheral environment data acquisition module 42 comprises a temperature sensor, a humidity sensor, a moisture sensor and the like, and is respectively used for acquiring the temperature, the humidity and the precipitation of the environment where the building is located and sending the detected data to the central processing unit 1;
the evaluation and analysis module 43 is configured to receive the collected data, collate the data, compare the collated data with a standard value, and send an analysis result to the central processing unit 1.
The invention can also continuously monitor the building after construction, can observe the changes of the temperature, the humidity and the precipitation of the environment where the building is located at any time, and send the detected data to the central processing unit, can predict the influence of the environmental change on the building in time through the change conditions, and can take measures in time after the influence occurs; simultaneously this application can also come to monitor the situation of change of building after the building construction according to the internal stress of building and building surrounding environment, further ensures the security of building.
In summary, the civil engineering construction monitoring system provided by the invention monitors the change condition of the building in all directions in three stages of before construction, in the construction process and after construction, particularly monitors the key condition in the construction process, reflects the building condition through monitoring the settlement state of the foundation pit and the building, and arranges and feeds back the monitoring data to the central processing unit, and when an abnormal condition occurs, the monitoring system can remind the construction unit to take measures according to the monitoring data so as to ensure the safety and reliability of the construction.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims (7)

1. A civil engineering building monitoring system is characterized by comprising a monitoring subsystem (2) before construction, a monitoring subsystem (3) during construction and a monitoring subsystem (4) after construction;
the monitoring subsystem (2) before construction comprises a foundation pit monitoring module (22), the foundation pit monitoring module (22) is used for monitoring foundation pit deformation and foundation pit support structure deformation at any time before civil engineering construction, sensor acquisition nodes are arranged on the side surface and the bottom of a deep foundation pit body and comprise sensor acquisition nodes used for acquiring foundation pit surface displacement, deep displacement monitoring, underground water level monitoring and stress strain monitoring, real-time data acquisition of stratum geology and hydrology in a deep foundation pit region is realized, and each sensor acquisition node sends acquired deep foundation pit environment data to a central processing unit (1) for storage and preservation;
the construction monitoring subsystem (2) is used for monitoring sag change of a building and deformation and breakage of an underground pipeline in the building layer-by-layer construction process, transmitting the acquired data to the central processing unit (1) for storage and preservation, comparing the acquired data with preset sag change of the building and deformation of the underground pipeline by the central processing unit (1), and transmitting a signal to an alarm to give an alarm if the acquired deformation exceeds a standard deformation;
the post-construction monitoring subsystem (4) is used for continuously monitoring the building after the building is constructed, monitoring the stress change of the building and the change of the environment where the building is located by an internal stress sensor poured in the building during construction, predicting the possible problems of the building and further ensuring the safety of the building.
2. The civil engineering building monitoring system of claim 1, wherein the sensor collection nodes of the foundation pit monitoring module (22) comprise a GPS, a static level gauge, a fixed inclinometer, an osmometer, a strain gauge, an earth pressure gauge, and the like, which are arranged in the foundation pit; the GPS or static level gauge is used for collecting the surface displacement of the foundation pit; the fixed inclinometer or the multi-point displacement meter is used for acquiring deep displacement; the osmometer is used for monitoring the underground water level; the strain gauge, soil pressure gauge, and the like are used to monitor stress-strain.
3. A civil engineering construction monitoring system as claimed in claim 1, wherein the pre-construction monitoring subsystem (2) further comprises a geological data acquisition module (21) and a building envelope monitoring module (23);
the geological data acquisition module (21) is used for acquiring geological data of the monitored object, acquiring the geological data of the monitored object on site by using modes such as outcrop observation, drilling, pit detection, core identification and the like, and sending the acquired data to the central processing unit (1);
the building envelope monitoring module (23) comprises a plurality of fixed inclinometers and strain gauges which are arranged at different positions of the building envelope, the fixed inclinometers are used for monitoring the displacement of the building envelope, the strain gauges are used for monitoring the deformation of the building envelope, and the fixed inclinometers and the strain gauges send acquired data to the central processing unit (1).
4. A civil engineering construction monitoring system as claimed in claim 1, characterised in that the on-construction monitoring subsystem (3) comprises a settlement monitoring module (31), an inclination monitoring module (32) and an underground utility monitoring module (33);
the settlement monitoring module (31) is used for monitoring the settlement state of the building in the building process, a plurality of settlement monitoring points are uniformly arranged on the ground and the surface of the building along the transverse direction and the longitudinal direction of the building, a static level gauge is arranged at the plurality of settlement monitoring points, and the static level gauge sends monitored data to the central processing unit (1) to determine a relation curve of ground settlement;
the inclination monitoring module (32) is used for monitoring the inclination state of a building in the building process, a plurality of sag monitoring points are uniformly distributed at the four corners and the middle part of each floor in the building floor-by-floor building process, a static level gauge is placed at each sag monitoring point, the sag change of the building is monitored by using the static level gauge, and data are sent to the central processing unit (1);
the underground pipeline monitoring module (33) is used for monitoring deformation, breakage and other conditions of the underground pipeline in real time in the building process, simultaneously burying an osmometer, a crack meter and the like to monitor deformation and breakage of the underground pipeline when the underground pipeline is buried, and sending monitoring data to the central processing unit (1).
5. A civil engineering construction monitoring system as claimed in claim 1, wherein the post-construction monitoring subsystem (4) comprises a building internal stress monitoring module (41), a surrounding environment data acquisition module (42) and an evaluation analysis module (43);
the internal stress monitoring module (41) is used for collecting the internal stress of the building, pouring an internal stress sensor in the building when the building is built, and sending collected data to the central processing unit (1);
the peripheral environment data acquisition module (42) comprises a temperature sensor, a humidity sensor, a moisture sensor and the like, and is respectively used for acquiring the temperature, the humidity and the precipitation of the environment where the building is located and sending the detected data to the central processing unit (1);
and the evaluation analysis module (43) is used for receiving the acquired data, collating the data, comparing the data with a standard numerical value and sending an analysis result to the central processing unit (1).
6. A civil engineering construction monitoring system as claimed in claim 4, characterised in that the construction time monitoring subsystem (3) further includes a data calculation module (34), the data calculation module (34) being adapted to automatically generate data tables, analysis graphs and the like from the monitored data.
7. The civil engineering building monitoring system of claim 6, wherein the data calculation module (34) is further connected with a display module (35), and the data table and the analysis graph generated after the arrangement, such as a column chart, a line chart and the like, are displayed on the display screen through the display module (35).
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CN111896047A (en) * 2020-07-06 2020-11-06 贵州摩斯智慧科技有限公司 Real-time online monitoring system for geological engineering
CN111896048A (en) * 2020-07-06 2020-11-06 贵州摩斯智慧科技有限公司 Building structure health real-time monitoring system
CN111926795A (en) * 2020-08-13 2020-11-13 上海宝冶集团有限公司 Foundation and foundation monitoring method and system
CN112281931A (en) * 2020-09-14 2021-01-29 国网山东省电力公司建设公司 Foundation pit real-time monitoring system
CN112525140A (en) * 2020-11-30 2021-03-19 中铁第五勘察设计院集团有限公司 Beidou deformation inspection system
CN112982503A (en) * 2021-02-05 2021-06-18 上海市市政工程管理咨询有限公司 Subway foundation pit construction monitoring system, method, equipment and storage medium
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CN114001709A (en) * 2021-10-13 2022-02-01 中研中鉴(北京)工程质量检测有限公司 Building settlement monitoring method and system
CN114844922A (en) * 2022-04-25 2022-08-02 海南水文地质工程地质勘察院 Foundation pit safety monitoring system based on Internet of things
CN114894111A (en) * 2022-04-20 2022-08-12 徐州中煤百甲重钢科技股份有限公司 Stadium steel structure safety monitoring device and method based on strain and settlement
CN114991226A (en) * 2022-06-07 2022-09-02 浙江天成项目管理有限公司 Foundation pit displacement automatic monitoring system
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