Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness
This paper presents an experimental investigation on chemical grouting in a permeated fracture replica considering its roughness. Tests of grouting with flowing water in the fracture replica were carried out under different Bardon’s standard roughness profiles. The interactions between inf...
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doaj-33bc22cea4e84facb7b77758b8bce1ad2020-11-25T00:30:45ZengMDPI AGApplied Sciences2076-34172019-07-01913276210.3390/app9132762app9132762Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different RoughnessLichuang Jin0Wanghua Sui1Jialu Xiong2School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, ChinaJiangsu Transportation Institute, Nanjing 210019, ChinaThis paper presents an experimental investigation on chemical grouting in a permeated fracture replica considering its roughness. Tests of grouting with flowing water in the fracture replica were carried out under different Bardon’s standard roughness profiles. The interactions between influential factors were considered and an experimental platform for grouting in rough fractures with flowing water was established. The effect of chemical grouting in fractures with flowing water was investigated using orthogonal experiment. The joint roughness coefficient (<i>JRC</i>), the initial water flow rate, the gel time, and the fracture opening were selected as factors in the orthogonal experiment. The results show that there is a positive correlation between the water plugging rate and <i>JRC</i>, and negative correlations between the water plugging rate and the initial water flow rate, gel time, and fracture opening. The change curve of the water flow rate is divided into three categories: Single platform decreasing type, double platform decreasing type, and multi-peak fluctuating type. The curve of seepage pressure contains three categories: Single peak type, multi-peak type and platform type. The results provide a reference for grouting in rock fractures.https://www.mdpi.com/2076-3417/9/13/2762chemical groutingfractureflowing waterwater plugging ratejoint roughness coefficient |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lichuang Jin Wanghua Sui Jialu Xiong |
spellingShingle |
Lichuang Jin Wanghua Sui Jialu Xiong Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness Applied Sciences chemical grouting fracture flowing water water plugging rate joint roughness coefficient |
author_facet |
Lichuang Jin Wanghua Sui Jialu Xiong |
author_sort |
Lichuang Jin |
title |
Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness |
title_short |
Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness |
title_full |
Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness |
title_fullStr |
Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness |
title_full_unstemmed |
Experimental Investigation on Chemical Grouting in a Permeated Fracture Replica with Different Roughness |
title_sort |
experimental investigation on chemical grouting in a permeated fracture replica with different roughness |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2019-07-01 |
description |
This paper presents an experimental investigation on chemical grouting in a permeated fracture replica considering its roughness. Tests of grouting with flowing water in the fracture replica were carried out under different Bardon’s standard roughness profiles. The interactions between influential factors were considered and an experimental platform for grouting in rough fractures with flowing water was established. The effect of chemical grouting in fractures with flowing water was investigated using orthogonal experiment. The joint roughness coefficient (<i>JRC</i>), the initial water flow rate, the gel time, and the fracture opening were selected as factors in the orthogonal experiment. The results show that there is a positive correlation between the water plugging rate and <i>JRC</i>, and negative correlations between the water plugging rate and the initial water flow rate, gel time, and fracture opening. The change curve of the water flow rate is divided into three categories: Single platform decreasing type, double platform decreasing type, and multi-peak fluctuating type. The curve of seepage pressure contains three categories: Single peak type, multi-peak type and platform type. The results provide a reference for grouting in rock fractures. |
topic |
chemical grouting fracture flowing water water plugging rate joint roughness coefficient |
url |
https://www.mdpi.com/2076-3417/9/13/2762 |
work_keys_str_mv |
AT lichuangjin experimentalinvestigationonchemicalgroutinginapermeatedfracturereplicawithdifferentroughness AT wanghuasui experimentalinvestigationonchemicalgroutinginapermeatedfracturereplicawithdifferentroughness AT jialuxiong experimentalinvestigationonchemicalgroutinginapermeatedfracturereplicawithdifferentroughness |
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1725325220403740672 |