[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-650267-105":59,"doc-detail-650267-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","underpinning-techniques-and-their-applications-in-strengthening-of-different-types-of-existing-foundations-course-s01-014-credit-1-pdh","Underpinning Techniques and their Applications in Strengthening of Different Types of Existing Foundations - Course S01-014 - Credit 1 PDH","","Underpinning methods, procedures, and their applications are presented for strengthening and repairing existing building foundations. The course explains underpinning as a technique for restoring structural stability when foundation or footing failures occur unexpectedly after completion of substructure and superstructure. It covers the installation of permanent or temporary support to increase depth and bearing capacity, and outlines selection of methods, structural conditions requiring underpinning, purpose and need, plus common approaches such as pit, pile, wall and column underpinning.",{"@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/underpinning-techniques-and-their-applications-in-strengthening-of-different-types-of-existing-foundations-course-s01-014-credit-1-pdh/650267/",{"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/underpinning-techniques-and-their-applications-in-strengthening-of-different-types-of-existing-foundations-course-s01-014-credit-1-pdh/650267.png","ImageObject",300,407,{"name":92,"@type":93},"Jiven","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is underpinning and why is it used?","Question",{"text":112,"@type":113},"Underpinning is a method for repairing and strengthening building foundations. It installs permanent or temporary support to increase depth and bearing capacity, helping regain structural stability when failures occur.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"When should underpinning be considered for existing foundations?",{"text":117,"@type":113},"It is required in situations where foundation or footing failure happens unexpectedly after the structure is completed. The course also discusses structural conditions that require underpinning.",{"name":119,"@type":110,"acceptedAnswer":120},"What underpinning methods are covered?",{"text":121,"@type":113},"The course covers pit and pile methods, underpinning to walls, jack pile and needle-and-pile techniques, the Pynford stool method, root pile or angle piling, and underpinning columns.","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},650267,1792919287,{"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":19,"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":144,"read_time":145},1099513958607,"https://ap-avatar.wpscdn.com/avatar/100002390cf8733938c?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778829742770036399","| |\n| --- |\n| Underpinning Techniques and their Applications in Strengthening of Different Types of Existing Foundations\u003Cbr>Course No: S01-014\u003Cbr>Credit: 1 PDH |\n| \u003Cbr>Ibrahim M. Metwally, Ph.D., P.E. |\n| \u003Cbr>\u003Cbr>Continuing Education and Development, Inc.\u003Cbr>P: (877) 322-5800\u003Cbr>[info@cedengineering.com](info@cedengineering.com) |\n\nTable of Contents  \nIntroduction ................................................................................................................................ 1  \nWhat Is Underpinning? ............................................................................................................... 1  \nSelection of Underpinning Methods ........................................................................................... 2  \nTypes of works for selection of underpinning methods.............................................................. 2  \nConversion Works................................................................................................................... 2  \nProtection Works .................................................................................................................... 2  \nRemedial Works...................................................................................................................... 2  \nStructural Conditions Which Requires Underpinning ................................................................. 2  \nPurpose of Underpinning............................................................................................................ 3  \nNeed for Underpinning ............................................................................................................... 3  \nNecessity of Underpinning Foundation ...................................................................................... 3  \nMethods of Underpinning ..........................................................................................................4  \nPit method .............................................................................................................................. 4  \nPile method ............................................................................................................................ 6  \nUnderpinning to walls............................................................................................................. 7  \nJack pile underpinning ............................................................................................................ 8  \nNeedle and pile underpinning................................................................................................. 9  \n‘Pynford’ Stool method of underpinning .............................................................................. 10  \nRoot pile or angle Piling ........................................................................................................ 11  \nUnderpinning columns.......................................................................................................... 12  \nAdvantages of Underpinning .................................................................................................... 13  \nDisadvantages of Underpinning ................................................................................................ 14  \nConclusion ................................................................................................................................ 14  \nReferences ................................................................................................................................ 15  \nList of Figures  \nFigure 1. Underpinning Methods, Procedure, use in Foundation Strengthening and repair ...... 1  \nFigure 2.Pit Method of Underpinning .........................................................................................4  \nFigure 3. Pit Method of Underpinning with Cantilever needle ................................................... 5  \nFigure 4. Pile Method of Underpinning...................","cbCaifNryC3ylnuC","https://ap.wps.com/l/cbCaifNryC3ylnuC","pdf",1653179,18,"English","# Introduction\n## What Is Underpinning?\n## Selection of Underpinning Methods\n## Structural Conditions Which Requires Underpinning\n## Purpose of Underpinning\n## Need for Underpinning\n## Necessity of Underpinning Foundation\n## Methods of Underpinning\n## Advantages of Underpinning\n## Disadvantages of Underpinning\n## Conclusion\n## References","[{\"question\":\"What is underpinning and why is it used?\",\"answer\":\"Underpinning is a method for repairing and strengthening building foundations. It installs permanent or temporary support to increase depth and bearing capacity, helping regain structural stability when failures occur.\"},{\"question\":\"When should underpinning be considered for existing foundations?\",\"answer\":\"It is required in situations where foundation or footing failure happens unexpectedly after the structure is completed. The course also discusses structural conditions that require underpinning.\"},{\"question\":\"What underpinning methods are covered?\",\"answer\":\"The course covers pit and pile methods, underpinning to walls, jack pile and needle-and-pile techniques, the Pynford stool method, root pile or angle piling, and underpinning columns.\"}]","Underpinning Techniques and their Applications in Strengthening of Different Types of Existing Foundations - Course S01-014 - Credit 1 PDH | PDF",1792823528,45]