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Article: Design principle for truss-bolt system and its application to deep coal mine roof reinforcement

TitleDesign principle for truss-bolt system and its application to deep coal mine roof reinforcement
Authors
KeywordsApplication
Bolt global-resistance
Deep coalmine
Rock mechanics
Theoretical design method
Truss-bolt system
Issue Date2005
Citation
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 16, p. 2875-2881 How to Cite?
AbstractFrom the view of the safety and economical problems, the controlling of stability for fractured surrounding rock roof is one of the principal problems for deep underground coal mining engineering. A theoretical design method of the truss-bolt system for reinforcing underground fractured rock roof in coalmines is presented. The mechanical analysis of the system is considered in the models for the tie-rods and inclined roof bolts as well as three upper and lower bounds. The arching actions exerted by lateral behavior of the inclined bolts in reinforcing cracked roof are analyzed. The global-resistance concerning the lateral and axial behaviors of the inclined bolts in a truss-bolt-supported roadway is examined by using the classical theory of nonlinear beam under bending and tension. Based on the mechanical models, the design formulas concerning the lateral forces of bolts, tensions of tie-rod in truss system are given; and the reinforcement behaviors have been proposed. The analytical formulas for both lower and upper bounds for truss pre-tightening forces are put forward. Furthermore, the analytical equations for designing axial forces and dimensions of bolts in the system are presented. In order to make the truss-bolt design intelligent and effective, computer-aided design (CAD) software codes for coalmine truss-bolt reinforcement are developed. A case study for Suncun coal mine roadway supporting engineering is presented. This coalmine is considered as one of the deepest underground coal mining projects with buried depth of 1310 m in China. The in-situ tests show that the fractured roof is reinforced effectively; and the validity of study is proved.
Persistent Identifierhttp://hdl.handle.net/10722/71612
ISSN
2015 SCImago Journal Rankings: 1.073
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Ben_HK
dc.contributor.authorYang, RSen_HK
dc.contributor.authorHe, MCen_HK
dc.contributor.authorYue, ZQen_HK
dc.contributor.authorZhang, DCen_HK
dc.date.accessioned2010-09-06T06:33:34Z-
dc.date.available2010-09-06T06:33:34Z-
dc.date.issued2005en_HK
dc.identifier.citationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2005, v. 24 n. 16, p. 2875-2881en_HK
dc.identifier.issn1000-6915en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71612-
dc.description.abstractFrom the view of the safety and economical problems, the controlling of stability for fractured surrounding rock roof is one of the principal problems for deep underground coal mining engineering. A theoretical design method of the truss-bolt system for reinforcing underground fractured rock roof in coalmines is presented. The mechanical analysis of the system is considered in the models for the tie-rods and inclined roof bolts as well as three upper and lower bounds. The arching actions exerted by lateral behavior of the inclined bolts in reinforcing cracked roof are analyzed. The global-resistance concerning the lateral and axial behaviors of the inclined bolts in a truss-bolt-supported roadway is examined by using the classical theory of nonlinear beam under bending and tension. Based on the mechanical models, the design formulas concerning the lateral forces of bolts, tensions of tie-rod in truss system are given; and the reinforcement behaviors have been proposed. The analytical formulas for both lower and upper bounds for truss pre-tightening forces are put forward. Furthermore, the analytical equations for designing axial forces and dimensions of bolts in the system are presented. In order to make the truss-bolt design intelligent and effective, computer-aided design (CAD) software codes for coalmine truss-bolt reinforcement are developed. A case study for Suncun coal mine roadway supporting engineering is presented. This coalmine is considered as one of the deepest underground coal mining projects with buried depth of 1310 m in China. The in-situ tests show that the fractured roof is reinforced effectively; and the validity of study is proved.en_HK
dc.languageengen_HK
dc.relation.ispartofYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineeringen_HK
dc.subjectApplicationen_HK
dc.subjectBolt global-resistanceen_HK
dc.subjectDeep coalmineen_HK
dc.subjectRock mechanicsen_HK
dc.subjectTheoretical design methoden_HK
dc.subjectTruss-bolt systemen_HK
dc.titleDesign principle for truss-bolt system and its application to deep coal mine roof reinforcementen_HK
dc.typeArticleen_HK
dc.identifier.emailYue, ZQ:yueqzq@hkucc.hku.hken_HK
dc.identifier.authorityYue, ZQ=rp00209en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-24044477549en_HK
dc.identifier.hkuros114449en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-24044477549&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue16en_HK
dc.identifier.spage2875en_HK
dc.identifier.epage2881en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridLiu, B=36013061400en_HK
dc.identifier.scopusauthoridYang, RS=9240245100en_HK
dc.identifier.scopusauthoridHe, MC=7402609116en_HK
dc.identifier.scopusauthoridYue, ZQ=7102782735en_HK
dc.identifier.scopusauthoridZhang, DC=8539402300en_HK

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