Determining method for foundation pit engineering monitoring data alarm grade

A judgment method and engineering monitoring technology, which is applied in infrastructure engineering, alarms, infrastructure tests, etc., can solve the problems of missing dangerous nodes, reducing the importance of alarms, and paralyzing decision-makers, so as to facilitate the automatic identification of programs , the effect of reducing the degree of manual intervention

Active Publication Date: 2015-09-16
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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Problems solved by technology

[0004] 1. The alarm system is only for individual measuring points, and cannot comprehensively consider the overall nature of the foundation pit;
[0005] 2. A single alarm level is difficult to control;
[0006] If the standard is set too loosely, it is easy to miss the corresponding dangerous nodes;
[0007] If the standard is too strict, a

Method used

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  • Determining method for foundation pit engineering monitoring data alarm grade
  • Determining method for foundation pit engineering monitoring data alarm grade
  • Determining method for foundation pit engineering monitoring data alarm grade

Examples

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Embodiment

[0029] Example: such as figure 1 As shown, this embodiment specifically relates to a method for judging the alarm level of foundation pit engineering monitoring data, and the judging method specifically includes the following steps:

[0030] (1) Different types of measuring points are arranged at various positions in the foundation pit, and the test items of each measuring point are determined first;

[0031] (1.1) If each measuring point is a test item of force and crack, it only has the cumulative alarm value, but no daily change alarm value. The aforementioned force test items mainly include supporting axial force, column (pile, wall, column) ) internal force, anchor rod internal force, etc., and the test items for cracks mainly include building cracks, surface cracks, etc.;

[0032] (1.1.1) First, the change rate factor Q at such measuring points B assign a value of 0;

[0033] (1.1.2) Afterwards, according to the cumulative measured value C Li Carry out cumulant facto...

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Abstract

The invention discloses a determining method for a foundation pit engineering monitoring data alarm grade. Multiple measurement points are arranged in foundation pit engineering. According to the method, all influence factors in the foundation pit engineering are graded in a quantified mode through a change rate factor QB, an accumulative amount factor QL, an environment aspect factor QH and a working condition factor QG, finally, through the formula QC=QB+QL+QH+QG, a measurement point alarm factor QC is calculated, and the alarm grade is determined according to the value of the measured point alarm factor QC. The determining method has the advantages that according to the classification of measurement point alarm degrees, an important alarm region is emphasized; all the influence factors are quantified, so that automatic program judgment is convenient, the manual intervene degree is decreased, and automatic accurate monitoring and alarming in the foundation pit engineering are achieved.

Description

technical field [0001] The invention belongs to the technical field of engineering monitoring, and in particular relates to a method for judging the alarm level of foundation pit engineering monitoring data. Background technique [0002] The foundation pit is an earth pit dug at the foundation design position according to the base elevation and foundation plane size. It is a temporary project, and its function is to provide a space for the foundation masonry to be carried out in accordance with the position specified by the design. During the construction process, the foundation pit needs to be monitored to avoid major accidents. [0003] At present, the monitoring and alarming of foundation pit engineering adopts a single alarm level, and the alarm value is generally given by the designer. Its shortcomings are as follows: [0004] 1. The alarm system is only for individual measuring points, and cannot comprehensively consider the overall nature of the foundation pit; [...

Claims

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Application Information

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IPC IPC(8): E02D33/00G08B21/18
Inventor 潘华夏群裴孟德褚伟洪韩云
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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