Beidou/GNSS-based foundation pit intelligent monitoring and real-time early warning method

An intelligent monitoring and foundation pit technology, which is applied in the testing of basic structures, height/level measurement, excavation, etc. It can solve the problems of long data collection time interval, interference with subsequent engineering construction, and low data efficiency.

Pending Publication Date: 2020-06-05
NANTONG SIJIAN CONSTR GRP
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Problems solved by technology

Without exception, the above-mentioned projects have strict requirements on measurement accuracy. However, traditional measurement technology relies on optical measurement to continuously expand the measurement range, which leads to an increase in the number of measurement times and cumulative errors in the entire measurement process.
Once the accumulated error exceeds the threshold, it will not only affect the structural construction, but also interfere with the construction of subsequent projects
On the other hand, the traditional measurement uses manual data collection, the efficiency of data collection and transmission is low, the data collection time interval is long, and the dynamic information of the foundation pit cannot be grasped in real time, resulting in the inability to take corresponding measures in the first place when an abnormality occurs in the foundation pit , which will delay the timing of processing and cause accidents

Method used

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  • Beidou/GNSS-based foundation pit intelligent monitoring and real-time early warning method
  • Beidou/GNSS-based foundation pit intelligent monitoring and real-time early warning method
  • Beidou/GNSS-based foundation pit intelligent monitoring and real-time early warning method

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Effect test

Embodiment 1

[0059] A Beidou / GNSS-based active early warning method for intelligent monitoring of foundation pits, the specific steps are;

[0060] 1) The satellite high-precision positioning device receives monitoring data;

[0061] 2) Using the GNSS algorithm in the computer, through the calculation of the short baseline and coordinate conversion, the coordinates of the monitoring points with mm-level precision are formed;

[0062] 3) Determine whether the monitoring point is stable through the algorithm, and give an early warning;

[0063] 4) Trigger high-precision monitoring equipment to monitor the deformation of the foundation pit in real time, and submit relevant monitoring data in real time.

[0064] Based on this embodiment, the present invention can give early warning results every 10-15 minutes, and whether to perform early warning is determined according to the early warning algorithm. All high-precision monitoring equipment judges whether to operate according to the results ...

Embodiment 2

[0103] An intelligent foundation pit monitoring system based on Beidou / GNSS, including: satellite high-precision positioning device, high-precision monitoring equipment, vibration monitor and computer; high-precision monitoring equipment, triggered and started by early warning of satellite high-precision positioning, used for Carry out high-precision monitoring of foundation pit monitoring indicators (horizontal, vertical displacement, groundwater level changes, etc.), and return relevant measurement data in real time; satellite high-precision positioning device, used to receive satellite high-precision positioning device antenna position and space The relative spatial relationship data of Beidou satellites, and send the data back to the computer; the computer is used to use the Beidou / GNSS high-precision and fast positioning algorithm during the construction process to determine whether the monitoring point is stable; the vibration monitor is used to monitor the impact of const...

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Abstract

The invention discloses a Beidou/GNSS-based foundation pit intelligent monitoring and real-time early warning method. Beidou high-precision positioning is introduced into a traditional measurement technology, a foundation pit horizontal displacement real-time high-precision monitoring and data analysis system is established through combination of the modern wireless transmission technology, then other foundation pit monitoring devices are introduced and real-time intelligent monitoring and active early warning of the foundation pit are achieved.

Description

technical field [0001] The invention relates to the technical field of foundation pit monitoring, in particular to a method for intelligent monitoring and real-time early warning of foundation pits based on Beidou / GNSS. Background technique [0002] In recent years, with the rapid development of urban construction, the development and utilization of underground spaces such as civil air defense buildings, underground parking lots, and basements of high-rise buildings has become a trend, and foundation pit engineering is developing in a large and deep direction. In the process of deep foundation pit construction, only by systematically monitoring the foundation pit support structure can the smooth construction of the foundation pit project be ensured, and timely feedback in case of abnormal conditions, so that the construction unit can take corresponding measures to ensure the safety of the foundation pit. Foundation pit monitoring is generally based on measuring the deformati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/43G01S19/42G01S19/48G01C5/00G01C15/00E02D33/00E02D17/02
CPCG01S19/43G01S19/421G01S19/48G01C5/00G01C15/00E02D33/00E02D17/02
Inventor 耿裕华陈亚楠徐卓王斯海石小虎
Owner NANTONG SIJIAN CONSTR GRP
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