Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution

In order to analyze the influence of damage caused by corrosion on anchoring performance of a rock mass with different joints, the anchored rock mass specimens with different joints distribution were prepared. An electrochemical accelerated corrosion test of specimens was carried out, and the mechan...

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Main Authors: Wantao Ding, Minglei Hou, Lei Chen, Keqi Liu, Rui Chen, Yang Wang, Mingbin Wang
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2019/3546052
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author Wantao Ding
Minglei Hou
Lei Chen
Keqi Liu
Rui Chen
Yang Wang
Mingbin Wang
author_facet Wantao Ding
Minglei Hou
Lei Chen
Keqi Liu
Rui Chen
Yang Wang
Mingbin Wang
author_sort Wantao Ding
collection DOAJ
description In order to analyze the influence of damage caused by corrosion on anchoring performance of a rock mass with different joints, the anchored rock mass specimens with different joints distribution were prepared. An electrochemical accelerated corrosion test of specimens was carried out, and the mechanical test of them under different corrosion time was also investigated. The results showed that the pitting corrosion is the main form of the anchor bar corrosion of an anchoring rock mass with different joints, and the shape of the etch pit is reverse semi-ellipse. With the increase of pitting ratio, the ultimate bond strength and the corresponding slide distance decrease gradually. The effects of pitting ratio on the slide distance of the anchor bar in an anchored joint rock mass are insignificant, but these on the bond strength of it are significant. The bond-slide model of the anchored joint rock mass with different pitting ratios was established. The research results of this paper can provide reference for analyzing the corrosion damage of a complex anchored joint rock mass in practical engineering and a theoretical basis for the design optimization of anchoring support in the complex jointed rock mass.
format Article
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institution Kabale University
issn 1687-8086
1687-8094
language English
publishDate 2019-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-7f5ea3145a5b49298a56d6121778bca32025-02-03T05:50:50ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/35460523546052Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints DistributionWantao Ding0Minglei Hou1Lei Chen2Keqi Liu3Rui Chen4Yang Wang5Mingbin Wang6Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Civil Engineering, Ludong University, Yantai 264025, ChinaIn order to analyze the influence of damage caused by corrosion on anchoring performance of a rock mass with different joints, the anchored rock mass specimens with different joints distribution were prepared. An electrochemical accelerated corrosion test of specimens was carried out, and the mechanical test of them under different corrosion time was also investigated. The results showed that the pitting corrosion is the main form of the anchor bar corrosion of an anchoring rock mass with different joints, and the shape of the etch pit is reverse semi-ellipse. With the increase of pitting ratio, the ultimate bond strength and the corresponding slide distance decrease gradually. The effects of pitting ratio on the slide distance of the anchor bar in an anchored joint rock mass are insignificant, but these on the bond strength of it are significant. The bond-slide model of the anchored joint rock mass with different pitting ratios was established. The research results of this paper can provide reference for analyzing the corrosion damage of a complex anchored joint rock mass in practical engineering and a theoretical basis for the design optimization of anchoring support in the complex jointed rock mass.http://dx.doi.org/10.1155/2019/3546052
spellingShingle Wantao Ding
Minglei Hou
Lei Chen
Keqi Liu
Rui Chen
Yang Wang
Mingbin Wang
Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
Advances in Civil Engineering
title Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
title_full Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
title_fullStr Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
title_full_unstemmed Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
title_short Experimental Study on the Deterioration Rules of Anchoring Performance of Rock Mass under Different Joints Distribution
title_sort experimental study on the deterioration rules of anchoring performance of rock mass under different joints distribution
url http://dx.doi.org/10.1155/2019/3546052
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