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It provides a comprehensive guide to global intricacies through in-depth technical discussion of excavation methods, ground support, dewatering, cover drilling, equipping, surveying, stage design, shaft communication, and safety considerations. It explains decision-making variables, techno-economic evaluation, resource gaps motivating the compilation, and outlines how shaft access, geometry, sinking speed, and technology shape engineering choices.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/evaluation-and-design-considerations-for-conventional-vertical-shaft-sinking/665162/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/evaluation-and-design-considerations-for-conventional-vertical-shaft-sinking/665162.png","ImageObject",300,407,{"name":92,"@type":93},"PakDamar76","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the primary objective of the dissertation?","Question",{"text":112,"@type":113},"To provide engineers with a comprehensive understanding of the intricacies of conventional shaft sinking as practiced globally, serving as a guide memo ire.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which main technical topics does the dissertation cover?",{"text":117,"@type":113},"It covers excavation methods, ground support systems, dewatering techniques, cover drilling, equipping, surveying, stage design, shaft communication, and safety considerations.",{"name":119,"@type":110,"acceptedAnswer":120},"How does the dissertation describe the decision to sink a mine shaft?",{"text":121,"@type":113},"It presents shaft-sinking decisions as iterative, requiring multiple variables and options, including techno-economic comparison such as NPV, IRR, and payback periods, alongside scheduling and cost-affecting execution steps.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},665162,1793291823,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},962090893057,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","COPYRIGHT AND CITATION CONSIDERATIONS FOR THIS THESIS/ DISSERTATION  \no Attribution—You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.  \no NonCommercial—You may not use the material for commercial purposes.  \no ShareAlike—If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.  \nHow to cite this thesis  \nSurname, Initial(s) . (2012) . Title of the thesis or dissertation (Doctoral Thesis / Master’s Dissertation) . Johannesburg: University of Johannesburg. Available from:  \n[http://hdl.handle.net/102000/0002](http://hdl.handle.net/102000/0002) (Accessed: 22 August 2017) .  \nEvaluation and design considerations for conventional  \nvertical shaft sinking  \nErrico Vascotto  \nA dissertation submitted to the Faculty of Engineering and the Built Environment, University of Johannesburg, in fulfilment of the requirements for the degree of M(Tech) Master of Sustainable Mining  \nJohannesburg, 2024  \nDeclaration  \nAll information in this document has been obtained and presented per academic rules and ethical conduct. I also declare that, as required by these rules and conduct, I have fully cited and referenced all material and results that are not original to this work.  \nName, Last name : Errico Vascotto  \nSignature  \nAbstract  \nThis dissertation deals with the philosophy behind conventional vertical shaft sinking practices. While most of the topics covered within the dissertation may be\"old hat\" to experienced engineers, the younger engineer or manager who finds themselves accountable for a shaft sinking project will see the contents of this dissertation as helpful and contribute to the body of knowledge around conventional shaft sinking practices.  \nThe primary objective of this dissertation is to provide engineers with a comprehensive understanding of the intricacies of conventional shaft sinking as it is practiced globally – a guide memoire. Through the in-depth examination of the subject matter, the study delves into the technical aspects of shaft sinking, including excavation methods, ground support systems, dewatering techniques, cover drilling, equipping, surveying, stage design, shaft communication and safety considerations. The dissertation covers theoretical and practical examples with sketches, photos and tables presenting a holistic overview of shaft sinking practices.  \nThe lack of comprehensive resources concerning conventional shaft sinking covering all aspects of the process motivated the compilation of shaft sinking techniques. The goal was to provide a document to fill this gap and provide a valuable resource under one cover for professionals, students, and researchers in the field.  \nUnderground orebodies are accessed through underground mining techniques that involve the construction of shafts to reach the orebodies. The mining industry invariably has deeper shafts than those used in the civil and public sectors. Shafts are either circular, oval, or rectangular. The choice of skips, cages, auxiliary equipment, and ventilation governs their dimensions. The speed at which the shaft is required to be sunk and the sinking technology used to sink the shaft are also critical factors when selecting a shaft size. Circular shafts are the most common as they have proven more efficient in sink speed and are better suited to mechanised equipment and mining.  \nThe evolution of shaft sinking techniques and technologies provides valuable insight into the industry's progress. Tracing the historical development of shaft sinking and discussing the advancements in equipment, methods, and materials provides a broader perspective and appreciation for conventional shaft sinking. The historical development of shaft sinking offers a solid foundation and context for understanding the subject matter, demonstrati","cbCaina77TSV2rJC","https://ap.wps.com/l/cbCaina77TSV2rJC","pdf",5061580,331,"English","# Declaration\n# Abstract\n## Objective and scope of the dissertation\n## Core technical aspects covered\n## Motivation and resource gap\n## Shaft sinking fundamentals and decision-making\n## Historical development and industry progression","[{\"question\":\"What is the primary objective of the dissertation?\",\"answer\":\"To provide engineers with a comprehensive understanding of the intricacies of conventional shaft sinking as practiced globally, serving as a guide memo ire.\"},{\"question\":\"Which main technical topics does the dissertation cover?\",\"answer\":\"It covers excavation methods, ground support systems, dewatering techniques, cover drilling, equipping, surveying, stage design, shaft communication, and safety considerations.\"},{\"question\":\"How does the dissertation describe the decision to sink a mine shaft?\",\"answer\":\"It presents shaft-sinking decisions as iterative, requiring multiple variables and options, including techno-economic comparison such as NPV, IRR, and payback periods, alongside scheduling and cost-affecting execution steps.\"}]","Evaluation and Design Considerations for Conventional Vertical Shaft Sinking | PDF",834]