Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water

Fully-strongly weathered phyllite has strong water sensitivity,and the physical and mechanical properties of the phyllite will inevitably deteriorate after it is soaked in reservoir water,which is extremely unfavorable to the stability of the bank slope.In view of this,taking the bank slope of a ful...

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Main Authors: TANG Gang, LIAO Jun, DENG Tao, WANG Chenbin, XIE Ming, WANG Ruilin, LI Jing
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2023-01-01
Series:Renmin Zhujiang
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Online Access:http://www.renminzhujiang.cn/thesisDetails?columnId=47639666&Fpath=home&index=0
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author TANG Gang
LIAO Jun
DENG Tao
WANG Chenbin
XIE Ming
WANG Ruilin
LI Jing
author_facet TANG Gang
LIAO Jun
DENG Tao
WANG Chenbin
XIE Ming
WANG Ruilin
LI Jing
author_sort TANG Gang
collection DOAJ
description Fully-strongly weathered phyllite has strong water sensitivity,and the physical and mechanical properties of the phyllite will inevitably deteriorate after it is soaked in reservoir water,which is extremely unfavorable to the stability of the bank slope.In view of this,taking the bank slope of a fully-strongly weathered phyllite bridge as the research object,this paper carries out detailed field investigations,indoor physical and mechanical tests,and Geo-Slope software analysis,considers the effect of reservoir water storage on the deterioration of the shear strength of the phyllite on the bank slope,and calculates the variation law of the stability of the bank slope of the bridge.The results show that the shear strength parameter and the safety factor of the bank slope of the fully-strongly weathered phyllite decrease greatly within a short time after the reservoir is impounded,but the decrease then gradually slows down.In addition,after the reservoir is impounded,the deterioration of cohesion is larger than that of the angle of internal friction,and the water sensitivity of the cohesion is stronger.When the bank slope is soaked in water for 95 days,the safety factor is calculated to be 1.189,which is less than 1.200 and indicates an under-stable state.Therefore,measures to reinforce the bank slope are proposed.
format Article
id doaj-art-974e72fb205e4ec59e5caf1f4cc1b4a7
institution Kabale University
issn 1001-9235
language zho
publishDate 2023-01-01
publisher Editorial Office of Pearl River
record_format Article
series Renmin Zhujiang
spelling doaj-art-974e72fb205e4ec59e5caf1f4cc1b4a72025-01-15T02:22:40ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447639666Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir WaterTANG GangLIAO JunDENG TaoWANG ChenbinXIE MingWANG RuilinLI JingFully-strongly weathered phyllite has strong water sensitivity,and the physical and mechanical properties of the phyllite will inevitably deteriorate after it is soaked in reservoir water,which is extremely unfavorable to the stability of the bank slope.In view of this,taking the bank slope of a fully-strongly weathered phyllite bridge as the research object,this paper carries out detailed field investigations,indoor physical and mechanical tests,and Geo-Slope software analysis,considers the effect of reservoir water storage on the deterioration of the shear strength of the phyllite on the bank slope,and calculates the variation law of the stability of the bank slope of the bridge.The results show that the shear strength parameter and the safety factor of the bank slope of the fully-strongly weathered phyllite decrease greatly within a short time after the reservoir is impounded,but the decrease then gradually slows down.In addition,after the reservoir is impounded,the deterioration of cohesion is larger than that of the angle of internal friction,and the water sensitivity of the cohesion is stronger.When the bank slope is soaked in water for 95 days,the safety factor is calculated to be 1.189,which is less than 1.200 and indicates an under-stable state.Therefore,measures to reinforce the bank slope are proposed.http://www.renminzhujiang.cn/thesisDetails?columnId=47639666&Fpath=home&index=0phyllitefully-strongly weatheredbank slope of the bridgesoaked in reservoir waterstability
spellingShingle TANG Gang
LIAO Jun
DENG Tao
WANG Chenbin
XIE Ming
WANG Ruilin
LI Jing
Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
Renmin Zhujiang
phyllite
fully-strongly weathered
bank slope of the bridge
soaked in reservoir water
stability
title Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
title_full Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
title_fullStr Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
title_full_unstemmed Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
title_short Study on Bank Slope Stability of Fully-Strongly Weathered Phyllite Bridge Soaked in Reservoir Water
title_sort study on bank slope stability of fully strongly weathered phyllite bridge soaked in reservoir water
topic phyllite
fully-strongly weathered
bank slope of the bridge
soaked in reservoir water
stability
url http://www.renminzhujiang.cn/thesisDetails?columnId=47639666&Fpath=home&index=0
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AT dengtao studyonbankslopestabilityoffullystronglyweatheredphyllitebridgesoakedinreservoirwater
AT wangchenbin studyonbankslopestabilityoffullystronglyweatheredphyllitebridgesoakedinreservoirwater
AT xieming studyonbankslopestabilityoffullystronglyweatheredphyllitebridgesoakedinreservoirwater
AT wangruilin studyonbankslopestabilityoffullystronglyweatheredphyllitebridgesoakedinreservoirwater
AT lijing studyonbankslopestabilityoffullystronglyweatheredphyllitebridgesoakedinreservoirwater