Quantitative assessment method for stone cultural relic component weathering and security degree

A technology for safety grade and quantitative evaluation, applied in the field of grade, which can solve the problems of blurred boundary, inability to accurately assess the degree of adjacent weathering, and difficulty in comprehensively evaluating the weathering and safety degree of components.

Inactive Publication Date: 2013-06-05
BEIJING UNIV OF CHEM TECH +1
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Problems solved by technology

Due to the non-renewability of cultural relics, all activities carried out on them cannot damage cultural relics, so the detection methods are limited to non-destructive or minimal damage methods; in addition, on the one hand, due to the different degrees of influence on the components themselve...

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  • Quantitative assessment method for stone cultural relic component weathering and security degree
  • Quantitative assessment method for stone cultural relic component weathering and security degree
  • Quantitative assessment method for stone cultural relic component weathering and security degree

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Embodiment Construction

[0033] According to the principle of cultural relics protection, the physical properties that can be obtained through nondestructive or minimally destructive testing and can reflect rock weathering and safety characteristics are selected as evaluation indicators. The selected weathering indicators include the overall condition of the surface, the number and diameter of holes, the number and thickness of cracks, the quality of surface crisp powder, and the overall rebound strength. The following physical properties are selected as indicators for evaluating the safety level: ultrasonic wave velocity, rebound strength along the crack, whether there is a load crack, crack width, number, depth, length, and estimated flexural strength.

[0034] According to the degree of influence of each indicator on the weathering and safety status, the weight value is determined by the expert scoring method as shown in the table below.

[0035]

[0036] The weathering status is divided into fi...

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Abstract

A quantitative assessment method for stone cultural relic component weathering and security degree includes the following steps: selecting physical properties which can be achieved through lossless or micro-damaged detecting and capable of reflecting features of rock weathering and security as evaluation indexes according to protective principles of cultural relics, distributing corresponding weighted values to all the evaluation indexes through an expert scoring method to reflect degree of impact of different indexes to the component weathering and the security degree, dividing weathering degree into five levels and the security degree into four levels and formulating point values for all levels, preliminarily determining the weathering degree and the security degree according to a single evaluation index, and adopting a point weighting method to calculate final weathering points and security points of all the components to achieve the weathering degree and the security degree of the component visually and accurately.

Description

technical field [0001] The invention relates to the field of cultural relics protection, in particular to a method for evaluating the weathering level and safety level of stone cultural relic components in a quantitative manner. Background technique [0002] The weathering and safety status of stone cultural relics affect the integrity, appreciation and value of cultural relics, and there are hidden dangers of cultural relics and personal safety. The detection and evaluation of them can meet the requirements of heritage management departments and the public. Detection and evaluation The results can provide a reliable basis for subsequent protection work. The key to evaluating the weathering and safety of stone cultural relics is first to use non-destructive testing methods to detect stone cultural relics, and secondly to choose feasible, suitable and accurate evaluation indicators and evaluation methods. Due to the non-renewability of cultural relics, all activities carried...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01N33/00
Inventor 王菊琳李杰
Owner BEIJING UNIV OF CHEM TECH
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