Safety state confirmation method and device based on construction parameters

Abstract

The invention discloses a safety state confirmation method based on construction parameters. Different construction risk factors are selected for different construction nodes in a project to serve as random variables for safety state confirmation; determining a sequence and a relationship of the random variables in different construction nodes, obtaining the sequence and the relationship of the random variables by training a convolutional neural network and / or determining the sequence and the relationship of the variables according to a causal relationship, counting occurrence frequencies of various accidents at different construction nodes, and constructing a three-layer risk accident causal chain, distributing conditional probability distribution of different nodes in the causal chain according to the obtained risk accident causal chain, sorting possible risk accidents and occurrence probabilities according to accident severity to obtain first sorting data and second sorting data, and when a constructor enters a construction node at the position, determining the occurrence probability of the risk accidents according to the first sorting data and the second sorting data. And confirming the safety state of the personnel according to the sequence of the first sorted data and the second sorted data.

Description

technical field [0001] The invention relates to the technical field of building safety, in particular to a method and device for confirming safety status based on construction parameters. Background technique [0002] In the field of construction engineering construction in the construction industry, the existing overall project safety evaluation method mainly adopts the national standard JGJ59-2011 or the improved safety checklist of the same type as the core content of the inspection, supplemented by experts to conduct on-site inspections, and manual inspections The project is graded to evaluate the overall safety of the project. The evaluation method has the following problems: [0003] 1. The existing inspection content based on the improved national standard JGJ59-2011 lacks generalization and classification from the perspective of safety system science, and only delineates the sub-items from the risk source itself, which is not only scientifically rigorous, but also ...

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Problems solved by technology

[0003] 1. The existing inspection content formulated based on the improved national standard JGJ59-2011 lacks generalization and classification from the perspective of safety system science. It only delineates the scoring sub-items from the source of danger itself, which is not only scientifically rigorous, but also It does not fully reflect the safety status of the construction site

[0004] 2. The sub-item weights and sub-item score ranges of the existing inspection content are all formed through a certain number of expert demonstrations, which are subject to conditions such as the number of experts, expert ability levels, and expert experience. It is difficult to have a unified standard for the scoring quality and scientificity, and it is impossible to avoid human subjective intervention in scoring

[0005] 3. The scoring methods of the existing evaluation methods rely too much on individual subjective judgments and lack objective constraints

[0007] However, the above-mentioned safety evaluation method only considers the safety parameters of personnel and the scoring parameters of equipment. The safety evaluation of construction is carried out by using the calculation method of behavior theory model, and there is no way to judge the safety of unexpected accidents and different construction nodes. to consider and differentiate

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