Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway

In order to study the seepage failure mechanism of roadway filling medium consisting of cohesive soil under complex hydrogeological conditions, a large-scale triaxial stress-seepage test system was utilized to investigate the influence of kaolin content and seepage loading rate on the seepage charac...

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Main Authors: Shaoshuai Shi, Xiangxiang Zhu, Zhiguo Cao, Lin Bu, Zhijie Wen, Zongqing Zhou, Weidong Guo, Ruijie Zhao
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2022/9517011
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author Shaoshuai Shi
Xiangxiang Zhu
Zhiguo Cao
Lin Bu
Zhijie Wen
Zongqing Zhou
Weidong Guo
Ruijie Zhao
author_facet Shaoshuai Shi
Xiangxiang Zhu
Zhiguo Cao
Lin Bu
Zhijie Wen
Zongqing Zhou
Weidong Guo
Ruijie Zhao
author_sort Shaoshuai Shi
collection DOAJ
description In order to study the seepage failure mechanism of roadway filling medium consisting of cohesive soil under complex hydrogeological conditions, a large-scale triaxial stress-seepage test system was utilized to investigate the influence of kaolin content and seepage loading rate on the seepage characteristics of filling medium. Through the analysis on the variation rules of sand loss and particle size distribution, the seepage characteristics and whole process of seepage instability of filling medium were explored in depth. It is concluded that (1) The seepage instability process of filling medium can be categorized into three stages: the initiation loss of fine clay, the accelerating loss of soil, and the stable status of soil loss. (2) The seepage failure process rate is proportional to the seepage loading rate and inversely proportional to the content of kaolin. (3) The kaolin and sand content of remaining mixture presented initial>bottom>middle>top status. The research results have guidance value for exploring the instability evolution mechanism of filling medium in deep roadway.
format Article
id doaj-art-93bb5934d76f4570b415ec42540ce858
institution Kabale University
issn 1468-8123
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-93bb5934d76f4570b415ec42540ce8582025-02-03T05:57:20ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/9517011Experimental Study of Seepage Characteristics of Filling Structures in Deep RoadwayShaoshuai Shi0Xiangxiang Zhu1Zhiguo Cao2Lin Bu3Zhijie Wen4Zongqing Zhou5Weidong Guo6Ruijie Zhao7State Key Laboratory of water Resource Protection and Utilization in Coal MiningSchool of Qilu TransportationState Key Laboratory of water Resource Protection and Utilization in Coal MiningSchool of Qilu TransportationState Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and Ministry of Science and TechnologySchool of Qilu TransportationSchool of Qilu TransportationSchool of Qilu TransportationIn order to study the seepage failure mechanism of roadway filling medium consisting of cohesive soil under complex hydrogeological conditions, a large-scale triaxial stress-seepage test system was utilized to investigate the influence of kaolin content and seepage loading rate on the seepage characteristics of filling medium. Through the analysis on the variation rules of sand loss and particle size distribution, the seepage characteristics and whole process of seepage instability of filling medium were explored in depth. It is concluded that (1) The seepage instability process of filling medium can be categorized into three stages: the initiation loss of fine clay, the accelerating loss of soil, and the stable status of soil loss. (2) The seepage failure process rate is proportional to the seepage loading rate and inversely proportional to the content of kaolin. (3) The kaolin and sand content of remaining mixture presented initial>bottom>middle>top status. The research results have guidance value for exploring the instability evolution mechanism of filling medium in deep roadway.http://dx.doi.org/10.1155/2022/9517011
spellingShingle Shaoshuai Shi
Xiangxiang Zhu
Zhiguo Cao
Lin Bu
Zhijie Wen
Zongqing Zhou
Weidong Guo
Ruijie Zhao
Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
Geofluids
title Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
title_full Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
title_fullStr Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
title_full_unstemmed Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
title_short Experimental Study of Seepage Characteristics of Filling Structures in Deep Roadway
title_sort experimental study of seepage characteristics of filling structures in deep roadway
url http://dx.doi.org/10.1155/2022/9517011
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AT zhijiewen experimentalstudyofseepagecharacteristicsoffillingstructuresindeeproadway
AT zongqingzhou experimentalstudyofseepagecharacteristicsoffillingstructuresindeeproadway
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