A dynamic on-line monitoring and early warning device and monitoring method for horizontal displacement of foundation pit

Abstract

The invention discloses a dynamic online horizontal displacement monitoring and early warning device for a foundation pit. The dynamic online horizontal displacement monitoring and early warning device for the foundation pit comprises a real-time monitoring device, a signal transmitting and receiving device and an information processing device. According to the dynamic online horizontal displacement monitoring and early warning device of the structure, small displacement of a slope of the foundation pit is recorded through an automatic monitoring rod, and recorded data are sent to the signal processing device through the signal transmitting and receiving device, so that monitoring processing is conducted on the data. The automatic monitoring rod amplifies the small displacement through a gear set structure so that the small displacement can also be received by an ordinary angle sensor, and the cost is effectively reduced.

Description

Technical field [0001] The invention relates to the field of foundation pit construction, in particular to a dynamic online monitoring and early warning device and a monitoring method for the horizontal displacement of the foundation pit. Background technique [0002] In order to ensure the safety of construction projects, in accordance with the requirements of the engineering safety monitoring specification, during the construction or operation period, the horizontal displacement of the foundation or the interior of the geotechnical building such as piles, continuous walls, deep wells, and foundation pit fences should be monitored. At present, this kind of monitoring is done by using an inclinometer. The existing inclinometer consists of an inclinometer probe, a reading instrument, cables and an inclinometer tube. The inclinometer tube is pre-purchased into the soil and used as an inclinometer. The guide rail is used. After the soil is deformed, the entire inclinometer tube wil...

AI Technical Summary

Problems solved by technology

However, the operation of this kind of inclinometer requires the measurement personnel to visit the site every time. Due to the objective conditions of the measurement environment and the factors considered to be operated, the measurement results often have large errors.

Moreover, the inclinometer must be placed and operated once for each measurement, and the inclinometer probe must be lowered to a certain depth, and the value must be measured and read once, and each inclinometer tube must be repeatedly operated, so not only the operation is heavy, but the detection efficiency is low. , The error is large, and the deformation of the land or the low structure cannot be measured and monitored in real time

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