Early warning system for evaluating influences imposed on levee by deformation of vertical deep foundation pit and early warning method

Abstract

The invention relates to an early warning system for evaluating influences imposed on a levee by deformation of a vertical deep foundation pit, which at least comprises a static level monitoring device, an inclination measuring device and a water level gauge used for collecting the water level of a water area near the levee, and is characterized by further comprising a background server used for analyzing and processing collected displacement deformation data and water level data and a mobile terminal used for displaying a judgment result and giving out an alarm, wherein the static level monitoring device, the inclination measuring device and the water level gauge are connected with the background server through data transmission equipment, and the background server is further in communication connection with the mobile terminal. According to the invention, an appropriate deformation parameter threshold is selected through measuring the real-time water level on site, and then the selected deformation parameter threshold is compared with actual deformation data, thereby being more accurate in comparison result, having more practical guiding significance for on-site construction, avoiding unnecessary waste caused by a traditional excessively high threshold, and further avoiding the harm caused by late early warning due to a traditional excessively low threshold. According to the early warning method, the trend of levee and foundation pit deformation can be predicted in advance, and precautions can be made in advance.

Description

technical field [0001] The invention relates to the technical field of safety monitoring, in particular to an early warning system and an early warning method for evaluating the influence of deformation of a vertical deep foundation pit on an embankment. Background technique [0002] With the advancement of the national urbanization strategy, it is necessary to further develop the city's underground space, which puts forward higher requirements for the city's deep foundation pit engineering. Considering the development needs, especially in the development process of the adjacent water area, the excavation of the foundation pit will inevitably cause a certain degree of displacement and settlement in the surrounding area of ​​the foundation pit. If these deformations are not controlled, it is very easy to cause damage to the dam in the adjacent water area Instability poses a great challenge to the safety of the embankment. On the other hand, during the flood season, the water...

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Problems solved by technology

[0003] There are also existing studies on this aspect, such as "An Early Warning Method for Instability and Collapse of Vertical Deep Foundation Pit" in Chinese patent CN102877471B, but this method does not involve monitoring the embankment, but only conducts three-dimensional monitoring of deep foundation pits. monitoring of deformation; the patent does not establish real-time contact between the on-site management personnel and the remote computer, so that relevant personnel on the site cannot take timely preventive measures based on real-time monitoring data information; The effect of pore pressure gradient inside and outside the layer

And there is only one kind of deformation threshold set by the existing technology, that is, the fixed threshold obtained only by the warning water level or the flood peak water level, and the water level around the deep foundation pit will fluctuate to a certain extent. If only compared with the fixed threshold, a On the one hand, on-site construction resources are wasted to a certain extent; on the other hand, data comparison will be inaccurate

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