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Provides general notes governing excavation limits, protection of adjacent structures and utilities, required bracing and shoring, minimum concrete strengths, curing time before grouting, and weeping tile drainage to an approved system. Specifies footing and grout materials, typical section build-up, limits for unsupported conditions, and design responsibilities for exterior stairs, retaining walls, lintels, insulation, and pre-engineered guards.",{"@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/lmcbo-basement-walkout-plan-bench-type-underpinning-sections-notes/650264/",{"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/lmcbo-basement-walkout-plan-bench-type-underpinning-sections-notes/650264.png","ImageObject",300,407,{"name":92,"@type":93},"Helloiii","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",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 must be protected during excavation for the proposed underpinning work?","Question",{"text":112,"@type":113},"Excavation must not undermine adjoining building foundations or cause damage to utilities, roads, and sidewalks, and it must prevent movement that could harm adjacent property structures.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What are the stated requirements for concrete strength and grouting readiness?",{"text":117,"@type":113},"Concrete strength requirements specify minimum values at 28 days for underpinning and exterior concrete. Concrete must be cured for a minimum of 48 hours before grouting and proceeding to the next stage.",{"name":119,"@type":110,"acceptedAnswer":120},"Who is responsible for professional design elements such as exterior stairs?",{"text":121,"@type":113},"The notes specify that exterior stairs must be designed by a professional engineer, and that design submission must comply with the Building Code Act and applicable laws under municipal jurisdiction.","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},650264,1792823515,{"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":19,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":52},5909897196768,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","LMCBO  \nSTANDARD  \nDETAILS  \nTITLE  \nBASEMENT WALKOUT  \nPLAN丰SECTIONS  \nNOTE:UNDER THE BUILDING cODE ACTTHE LOCAL MUNICIPALITYISTHE AUTHORITYHAVING  \nOF THE OWNER/DESIGNER TO ENSURE THAT ALL DESIGNS SUBMITTED FOR A PERMIT ARE IN  \nACCORDANCE NITH THE BUILDING CODE ACT,BUILDING CODE AND ANY OTHER APPLICABLE LAW.  \nDWG.NO.  \nBOla  \n2012  \nSEE DETAIL  \n\"FOR REFERENCE ONLY.SHEET BOldNOT FOR cONSTRUCTION.  \nCONCRETE UNDERPINNINGUNDERPINNING FROM OUTSIDEPROFES5IONAL ENGINEERDESGN REQUIRED.\"THE FULL NIDTH OF  \nTHE EXISTING FOOTINGTITLEDWG.NO.LMCBOUNDERPINNINGSECTIONSSTANDARDNOTE:UNDER THE BUILDING CODE ACT,THE LOCAL MUNICIPALITY IS THE AUTHORITY HAVINGBOlbDETAILSJURISDICTION FOR ENFORCING THE ACT AND IT'S REGULATIONS.IT IS THE RESPONSIBILTY2012  \nIOOmm  \n# GENERAL NOTES\n\nI.EXCAVATION FOR THE PROPOSED WORK SHOULD NOTUNDERMINE THE FOUNDATIONS OF ADJOINING BUILDINGS,OR CAUSE DAMAGE TO UTILITIES,ROADS AND SIDEWALKS.A MAXIMUM 7:I0 ANGLE OF REPOSE SHALL BE MAINTAINEDUNLES5 OTHERWISE CERTIFIED BYA GEOTECHNICAL ENGINEER  \n2.PROVIDE ALL BRACING,SHORING AND NEEDLING NECESSARYFOR THE SAFE EXECUTION OF THIS WORK,  \n3.CONCRETE STRENGTH SHALL BE A MINIMUM I5MPa AT 28 DAYS  \nNOT FOR CONSTRLCTION.DESIGN REQUIRED.\"  \nLOWERING OF BASEMENT FLOOR SLAB FROM INSIDE  \nTITLE  \nBENCH-TYPE UNDERPINNING SECTIONS,NOTES  \n|NOTE:UNDER THE BUILDING CODE ACT,THE LOCAL MUNICIPALITY IS THE AUTHORITY HAVINGJURISDICTION FOR ENFORCING THE ACT AND IT'S REGULATIONS.IT IS THE RESPONSIBILTYOF THE OWNER/DESIGNER TO ENSURE THAT ALL DESIGNS SUBMITTED FOR A PERMIT ARE INACCORDANCE WITH THE BUILDING CODE ACT,BUILDING CODE AND ANY OTHER APPLICABLE LAW.  \n2012  \n②  \nEXTENT OF UNDERPINNIN9  \nSEE ELE>ATION B  \n①  \n②  \nEXTENT OF UNDERPINNING  \nNUMBERS INDICATE SEQUENCE OF WORK  \nSEE ELEVATION 'A'  \nPLAN  \nEXISTING  \n38mm NON-SHRINK GROUT  \nlFOUNDATION WALLI  \nALLOW CONCRETE TO CURE  \n48 HOURS BEFORE GROUTING  \nEXISTING|  \n,3emm  \n38mm  \nFOOTING  \nSTAGE I  \nSTAGE 2  \nSTAGE I  \nSTAGE 2  \nSTAGE 3  \n120Omm  \n12OOmm  \n38mm  \nNON-SHRINK  \nGROUT  \nPOURED  \nSTEP FOOTING IF REQUIRED  \nCONCRETE  \nMAX.RISE 60Omm  \nUNDERPINNING  \nMINIMUM RUN 6OOmm  \n12O0mm MAX.  \n1200mm MA×.  \nI200mm MAx.  \n1200mm MAX.  \nTYPICAL  \nTYPICAL  \nTYPICAL  \nTYPICAL  \nELEVATION 'A'  \nELEVATION 'B'  \nGENERAL NOTES  \n1.WHERE THE FOUNDATIONS OF A BUILDING ARE TO BE  \n8.CONCRETE  \nCONSTRUCTED BELOW THE LEVEL OF THE FOOTINGS OF  \nMINIMUM COMPRESSIVE STRENGTH  \nAN ADJACENT BUILDING AND WITHIN THE ANGLE OF REPOSE  \nOF 32MPa o 28 DAYS W/  \nOF THE SOIL,OR THE UNDERPINNING EXCEEDS 120Omm OF  \n5%TO 8%AIR ENTRAINMENT  \nLATERALLY UNSUPPORTED HEIGHT OR THE SOIL IS CLAY  \nOR SILT,THE UNDERPINNING年RELATED CONSTRUCTION  \n9.EXTERIOR STAIRS  \nSHALL BE DESIGNED BY A PROFESSIONAL ENGINEER.  \n200mm RISE MAXIMUM 125mm MINIMUM  \n2.EXCAVATION SHALL BE UNDERTAKEN N A MANNER SO AS  \n2IOmm RUN MINIMUM 355mm MAXIMUM  \nTO PREVENT MOVEMENT WHICH WOULD CAUSE DAMAGE TO  \n235mm TREAD MINIMUM 355mm MA×IMUM  \nADJACENT PROPERTY,STRUCTURES,UTILITIES,ROADS  \nIO.INSULATION  \nSIDENALKS.CONTACT YOUR LOCAL UTILITIES PRIOR TO  \nCOMMENCING EXCAVATION.  \n-MIN.RSI 4.23(R24)INSULATION 4 VAPOUR  \nBARRIER ON THE INSIDE FACE OF  \n3.MINIMUM CONCRETE STRENGTH FOR UNDERPINNING SHALL  \nTHE EXPOSED FOUNDATION WALL  \nBE I5MPa AT 28 DAYS.ALL EXTERIOR CONCRETE  \n-MIN.RSI 1.76(RIO)INSULATION FOR 6OOmm  \nSHALL BE 32MPa W/5%-8%AIR ENTRAINMENT.  \nBELOW GRADE AT WALKOUT LANDING  \n11.RETAINING WALL  \n4.CONCRETE SHALL BE CURED MINIMUM 48 HOURS BEFORE  \nGROUTING AND PROCEEDING TO THE NEXT STAGE.  \n25Omm MASONRY OR POURED CONCRETE  \nW NO REINFORCING REQUIRED FOR  \n5.SHORE车BRACE WHERE NECESSARY TO ENSURE THE  \nWALL HEIGHTS TO A MA×.OF 12O0mm  \nSAFETY丰STABILITY OF THE EXISTING STRUCTURE  \nPROVIDE 25M VERTICAL REINFORCEMENT  \nDURING UNDERPINNING.  \n◎ 6OOmm OC.AND A BOND BEAM  \nCONTAINING AT LEAST ONE I5M REINFORCEMENT  \n6.WEEPING TILE IS TO DRAIN TO THE STORM SENER,  \nFOR BACKFILL HEIGHTS TO A MA×.OF 240Omm  \nDITCH,DRYWELL OR INSTALL COVERED SUMP PIT  \n12.PRE-ENGINEERED GUARDS  \nWITH AN AU","cbCaicpcQEENbh3t","https://ap.wps.com/l/cbCaicpcQEENbh3t","pdf",577892,"English","# GENERAL NOTES\n## Excavation and sequencing\n## Materials, curing and grouting\n## Drainage, insulation and retaining elements\n## Exterior stairs, guards and lintels","[{\"question\":\"What must be protected during excavation for the proposed underpinning work?\",\"answer\":\"Excavation must not undermine adjoining building foundations or cause damage to utilities, roads, and sidewalks, and it must prevent movement that could harm adjacent property structures.\"},{\"question\":\"What are the stated requirements for concrete strength and grouting readiness?\",\"answer\":\"Concrete strength requirements specify minimum values at 28 days for underpinning and exterior concrete. Concrete must be cured for a minimum of 48 hours before grouting and proceeding to the next stage.\"},{\"question\":\"Who is responsible for professional design elements such as exterior stairs?\",\"answer\":\"The notes specify that exterior stairs must be designed by a professional engineer, and that design submission must comply with the Building Code Act and applicable laws under municipal jurisdiction.\"}]","LMCBO Basement Walkout Plan - Bench-Type Underpinning Sections - Notes | PDF"]