Experimental study on distribution law of residual fissure under multiple mining conditions

The developmental state of residual fissure in goaf is an important factor in the design of goaf filling and grouting. Under the conditions of multiple seams mining, this paper discusses the distribution of residual fissure in overlying strata by means of the similar material experiment. The results...

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Autores principales:	Zhang,Yongbo, Yan,Li
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2015
Materias:	Multiple seams mining goaf residual fissure simulated experiment
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000100010
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spelling	oai:scielo:S0718-915X20150001000102015-05-08Experimental study on distribution law of residual fissure under multiple mining conditionsZhang,YongboYan,Li Multiple seams mining goaf residual fissure simulated experiment The developmental state of residual fissure in goaf is an important factor in the design of goaf filling and grouting. Under the conditions of multiple seams mining, this paper discusses the distribution of residual fissure in overlying strata by means of the similar material experiment. The results show that, after the end of mining, the distribution of residual fissure in goaf displays obvious characteristics in different zones. From both sides to the middle of goaf, it can be divided into three zones: residual fissure zone, compacted fissure zone, and surface tensile fissure zone. The fissure rate of the residual fissure zone generally varies from 19.45 % to 45.27 % while the fissure rate of the fissure compacted zone varies from 9.28 % to 19.33 %. The developmental height of interlayered fissure is decided by both mining width and total mining height. In both theory and practice, this study has the great importance in estimation of stability of the goaf, determining the range and depth of the goaf treatment, reasonable arrangement of the injected holes, and reasonable grouting amount of the single injected hole.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.14 n.1 20152015-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000100010en10.4067/S0718-915X2015000100010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Multiple seams mining goaf residual fissure simulated experiment
spellingShingle	Multiple seams mining goaf residual fissure simulated experiment Zhang,Yongbo Yan,Li Experimental study on distribution law of residual fissure under multiple mining conditions
description	The developmental state of residual fissure in goaf is an important factor in the design of goaf filling and grouting. Under the conditions of multiple seams mining, this paper discusses the distribution of residual fissure in overlying strata by means of the similar material experiment. The results show that, after the end of mining, the distribution of residual fissure in goaf displays obvious characteristics in different zones. From both sides to the middle of goaf, it can be divided into three zones: residual fissure zone, compacted fissure zone, and surface tensile fissure zone. The fissure rate of the residual fissure zone generally varies from 19.45 % to 45.27 % while the fissure rate of the fissure compacted zone varies from 9.28 % to 19.33 %. The developmental height of interlayered fissure is decided by both mining width and total mining height. In both theory and practice, this study has the great importance in estimation of stability of the goaf, determining the range and depth of the goaf treatment, reasonable arrangement of the injected holes, and reasonable grouting amount of the single injected hole.
author	Zhang,Yongbo Yan,Li
author_facet	Zhang,Yongbo Yan,Li
author_sort	Zhang,Yongbo
title	Experimental study on distribution law of residual fissure under multiple mining conditions
title_short	Experimental study on distribution law of residual fissure under multiple mining conditions
title_full	Experimental study on distribution law of residual fissure under multiple mining conditions
title_fullStr	Experimental study on distribution law of residual fissure under multiple mining conditions
title_full_unstemmed	Experimental study on distribution law of residual fissure under multiple mining conditions
title_sort	experimental study on distribution law of residual fissure under multiple mining conditions
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000100010
work_keys_str_mv	AT zhangyongbo experimentalstudyondistributionlawofresidualfissureundermultipleminingconditions AT yanli experimentalstudyondistributionlawofresidualfissureundermultipleminingconditions
_version_	1714206270928453632

Experimental study on distribution law of residual fissure under multiple mining conditions

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