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Foundation pit settlement real-time monitoring device and method based on fiber bragg grating

A real-time monitoring, fiber grating technology, applied in the field of basic soil survey, service based on specific environment, test of infrastructure, etc., can solve difficult data remote monitoring and analysis, construction site wiring difficulties, low monitoring data accuracy, etc. problems, to achieve the effect of improving the degree of monitoring intelligence, improving construction quality, and advanced and scientific methods

Pending Publication Date: 2021-09-21
江苏中云筑智慧运维研究院有限公司 +1
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Problems solved by technology

However, at the present stage, most of the full-section settlement monitoring of foundation pit soil drilling relies on cables to obtain monitoring signals, and data is mostly transmitted through wired or local area network technology, which not only makes the construction site wiring difficult, the monitoring data accuracy is low, and the process is cumbersome. Waste of resources, and not easy to monitor and analyze data remotely

Method used

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  • Foundation pit settlement real-time monitoring device and method based on fiber bragg grating
  • Foundation pit settlement real-time monitoring device and method based on fiber bragg grating

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Embodiment Construction

[0032]The present invention will be further described below in conjunction with the drawings and descriptions of the drawings.

[0033] Such as figure 1 As shown, the present invention discloses a real-time monitoring device and method for foundation pit settlement based on optical fiber gratings, including a data acquisition system 1, a data mediation and transmission system 2, a solar power supply system 3, and a cloud server system 4. The data acquisition system 1 Connected to the data mediation and transmission system 2, the data mediation and transmission system 2 is connected to the solar power supply system 3, and the data mediation and transmission system 2 is remotely connected to the cloud server system 4 through a wireless network;

[0034] The data acquisition system 1 involves a monitoring hole 12, a quasi-distributed fiber Bragg grating sensing element 11, a counterweight guide hammer 13, a pulley member 14, and a backfill material (not shown) for the monitoring ...

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Abstract

The invention discloses a foundation pit settlement real-time monitoring device and method based on fiber bragg grating. The device comprises a data collection system, a data mediation and transmission system, a solar power supply system and a cloud server system, wherein the data collection system comprises a monitoring hole, a quasi-distributed fiber bragg grating sensing element for monitoring changes of a soil deformation field and a moisture field related to foundation pit settlement, a counterweight guide hammer for guiding the sensing element into the monitoring hole, a pulley component for fixing a sensing optical cable at an orifice and a backfill material of the monitoring hole. According to the device, real-time visualization and visualized data display of the changes of the soil full-section deformation field and the moisture field related to the foundation pit settlement can be realized, the monitoring precision is high, the sensitivity is strong, the effects of energy conservation and environmental friendliness are achieved, and the universality is strong.

Description

technical field [0001] The invention relates to an optical fiber grating-based real-time monitoring device and method for foundation pit settlement, belonging to the field of foundation pit monitoring. Background technique [0002] Deep foundation pit engineering is a basic project of urban construction, and the ground soil settlement generated during the excavation process must be highly valued by engineering risk control. Therefore, construction monitoring, which is one of the effective means of construction risk management and control, will become more and more important. Hair is important. At the same time, with the highly developed emerging information technologies such as Internet of Things technology and fiber grating technology, the automatic real-time monitoring of the construction process is very important in the development of the engineering field. However, at the present stage, most of the full-section settlement monitoring of foundation pit soil drilling relie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/00E02D33/00E02D17/02G16Y10/30G16Y40/10H04W4/38G08C23/06
CPCE02D1/00E02D33/00E02D17/02G16Y10/30G16Y40/10H04W4/38G08C23/06E02D2600/10Y02D30/70
Inventor 戴国亮柳鸿博杨才千朱文波曹小林
Owner 江苏中云筑智慧运维研究院有限公司
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