{"title":"基于数学模型的难落煤顶板水力压裂井距对有效裂缝网络形成的影响分析","authors":"M. O. Eremin, A. Yu. Peryshkin","doi":"10.1134/S1029959924601477","DOIUrl":null,"url":null,"abstract":"<p>Reducing the hazard of sudden rock and gas outbursts in coal seams is one of the key problems of geodynamic safety of mining. The paper presents a mathematical model of hydraulic fracturing of roof rocks as one of the key methods for reducing the outburst hazard. Structural features of the working area are studied by means of an example of the host rock strata of seam 3 of the Alardinskaya mine of the Kondomskoye field of the Kuznetsk coal basin. Three-dimensional finite difference analysis and continuum damage mechanics are used to study the influence of the well spacing on the formation of an effective crack network in the hard-to-cave roof during hydraulic fracturing. It is shown that changing the initial well spacing affects not only the formation time of an effective crack network but also the spacing between damage accumulation zones. Hydraulic fracturing of roof rocks from the working face effectively reduces the abutment stress and outburst hazard.</p>","PeriodicalId":726,"journal":{"name":"Physical Mesomechanics","volume":"28 3","pages":"397 - 408"},"PeriodicalIF":2.0000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of the Influence of the Well Spacing on the Formation of an Effective Crack Network in the Hard-To-Cave Coal Roof during Hydraulic Fracturing Based on Mathematical Modeling\",\"authors\":\"M. O. Eremin, A. Yu. Peryshkin\",\"doi\":\"10.1134/S1029959924601477\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Reducing the hazard of sudden rock and gas outbursts in coal seams is one of the key problems of geodynamic safety of mining. The paper presents a mathematical model of hydraulic fracturing of roof rocks as one of the key methods for reducing the outburst hazard. Structural features of the working area are studied by means of an example of the host rock strata of seam 3 of the Alardinskaya mine of the Kondomskoye field of the Kuznetsk coal basin. Three-dimensional finite difference analysis and continuum damage mechanics are used to study the influence of the well spacing on the formation of an effective crack network in the hard-to-cave roof during hydraulic fracturing. It is shown that changing the initial well spacing affects not only the formation time of an effective crack network but also the spacing between damage accumulation zones. Hydraulic fracturing of roof rocks from the working face effectively reduces the abutment stress and outburst hazard.</p>\",\"PeriodicalId\":726,\"journal\":{\"name\":\"Physical Mesomechanics\",\"volume\":\"28 3\",\"pages\":\"397 - 408\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physical Mesomechanics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1029959924601477\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Mesomechanics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1029959924601477","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Analysis of the Influence of the Well Spacing on the Formation of an Effective Crack Network in the Hard-To-Cave Coal Roof during Hydraulic Fracturing Based on Mathematical Modeling
Reducing the hazard of sudden rock and gas outbursts in coal seams is one of the key problems of geodynamic safety of mining. The paper presents a mathematical model of hydraulic fracturing of roof rocks as one of the key methods for reducing the outburst hazard. Structural features of the working area are studied by means of an example of the host rock strata of seam 3 of the Alardinskaya mine of the Kondomskoye field of the Kuznetsk coal basin. Three-dimensional finite difference analysis and continuum damage mechanics are used to study the influence of the well spacing on the formation of an effective crack network in the hard-to-cave roof during hydraulic fracturing. It is shown that changing the initial well spacing affects not only the formation time of an effective crack network but also the spacing between damage accumulation zones. Hydraulic fracturing of roof rocks from the working face effectively reduces the abutment stress and outburst hazard.
期刊介绍：
The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.
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