Investigation of long term moisture changes in trackbeds using GPR

被引：15

作者：

Khakiev, Zelimkhan ^{[1
]}

Shapovalov, Vladimir ^{[1
]}

Kruglikov, Alexander ^{[1
]}

Morozov, Andrey ^{[1
]}

Yavna, Victor ^{[1
]}

机构：

[1] Rostov State Transport Univ, Rostov Na Donu 344038, Russia

来源：

JOURNAL OF APPLIED GEOPHYSICS | 2014年 / 110卷

关键词：

GPR; Moisture of soil; Trackbeds; Reflectivity of soil; Radargram; Data processing; GROUND-PENETRATING RADAR;

D O I：

10.1016/j.jappgeo.2014.08.014

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In the paper we proposed a method of assessing the moisture content in a subgrade that has been exposed to occasional rainfalls and seasonal weather effects. The method is based on obtaining and processing GPR data and allows investigating long term moisture changes in the railway trackbeds. The GPR waveform change is considered dependent on the attenuation of electromagnetic radiation in the medium and its reflection from the soil layer boundaries. To analyze the soil moisture content the integral reflectivity as a quantitative characteristic is used in this method. This variable is used to evaluate the moisture changes in soil under rainfalls and other seasonal factors. The method verification is performed using RAW data of GPR profiling of Tuapse-Adler (Russia) railway section in December 2009 and between May and September 2010. It's shown that the value of integral reflectivity is sensitive to the soil moisture. Thus the dynamic analysis of changes in soil moisture on the selected railway sections depending on the different seasons is made. These results are in good agreement with data obtained by a track recording car. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 4

页数：4

共 23 条

[1]

[Anonymous], 2002, METHODS SOIL ANAL

[2]

Benedetto A., 2001, P SIIV C VER IT

[3] High-resolution GPR data analysis using extended tree-based pursuit [J].

Boeniger, Urs ;

Tronicke, Jens .

JOURNAL OF APPLIED GEOPHYSICS, 2012, 78 :44-51

[4]

Born M., 1999, Principles of optics, Vseventh

[5]

Daniels J.J., 2000, GROUND PENETRATING R

[6] Nondestructive testing of asphalt pavements for structural condition evaluation: a state of the art [J].

Goel, Amit ;

Das, Animesh .

NONDESTRUCTIVE TESTING AND EVALUATION, 2008, 23 (02) :121-140

[7]

Hugenschmidt J., 1998, P GROUND PEN RAD C L

[8]

Innanen K., 2011, CAN J EXPLOR GEOPHYS, V35, P6

[9]

Khakiev Z., 2009, SKNTS HIGH SCH NATUR, V6, P41

[10]

Khakiev Z., 2009, 1 BREAK, V27, P93

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