Safety state fast non-destructive detection method of operation roadbed

A non-destructive testing and safety state technology, applied in the field of foundation soil survey, roads, roads, etc., can solve the problem of not establishing dynamic deformation modulus and foundation coefficient analysis models, not quantitatively analyzing subgrade mechanics indicators and hidden dangers, and lack of quantitative indicators. Research on comparative test research and other issues to achieve the effect of light weight, short detection period and fewer risk factors
CN101684631AActive Publication Date: 2010-03-31铁三院(天津)工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
铁三院(天津)工程有限公司
Publication Date
2010-03-31

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Abstract

The invention relates to a safety state fast non-destructive detection method of operation roadbed, the method comprises steps: performing full cover scanning on a detected roadbed by adopting a geology radar to obtain a geology radar image and a dielectric constant of the detected roadbed; detecting Rayleigh velocities VR obtained by each detection point by a wave detector adopting a Rayleigh wave method; performing a penetration detection by a light type power penetrometer to record the hammering numbers N10; obtaining information of a roadbed integral state by analysis and comparison. The invention provides the non-destructive detection method and theoretical system for evaluating the safety state of the operation roadbed, the invention can be widely used for detecting integral states of various roadbeds, has characteristics of wide application range and comprehensive evaluation index; meanwhile, the invention can be applied to the operation roadbed, without damaging the road facilities, the detection construction period can be greatly shortened, and the detection coat can be reduced.
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Description

Technical field

[0001] The invention belongs to the field of civil engineering and construction engineering, in particular to a method for fast and non-destructive detection of the safety state of an operating roadbed. Background technique

[0002] Defects such as roadbed diseases and insufficient bearing capacity directly affect the safe operation of roadbeds. The traditional roadbed evaluation methods generally first go through geological surveys to find the distribution areas of roadbed diseases, and through drilling sampling, sand filling method, K 30 , Dynamic penetration testing and indoor laboratory testing methods to determine the type of roadbed disease and roadbed water content, bearing capacity, density and other indicators, to evaluate the quality of the roadbed. The disadvantage of the traditional method is that there are few measurement points and only reflect the information of one point or one hole of the roadbed. Because the detection points are not continuous, t...

Claims

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