大厦深基坑设计计算书

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1、大厦深基坑支护设计摘要本设计是丝绸大厦的基坑支护设计。地基土层主要由素填土、淤泥质粘土、粉质粉土、粉质粘土构成。地形为坡地，局部为水塘。由人工推填平整，场地较平整。原始地貌为侵蚀性堆积岗地。主体基坑支护采用分两侧采用不同的支护体系支护：一种是钻孔灌注桩加锚杆的支护体系，采用钻孔灌注桩的基坑开挖深度为9m，总桩长13m；一种是土钉墙支护，基坑开挖深度10m。基坑采用深层搅拌桩止水，排水沟排水。土层锚杆作为一种新兴科学，将会更广泛地运用到工程实践中，其具有较高的科学性、使用性，且施工方便，不占场地。设计的主要内容有支护方案的选择、钻孔灌注桩的设计与计算、土钉及锚杆的计算、

2、基坑的止水和施工组织设计和概预算。关键词：深基坑支护；土钉墙；钻孔灌注桩；深层搅拌桩；锚杆支撑；施工组织设计；概预算。SilkBuilding’sPitSupportDesignAbstractThedesignistheholeexcavatedforbuildingfoundationsupportsandprotectionsdesignofthesilkbuilding.Thefoundationsoilisprimarilymadeoffoundation-fillingsoil,mudclay,siltysilt,siltyclay.Thisterrain

3、iscoveredwithslopes,andsomepartsarereservoirs.ItispushedtobesmoothArtificially,andthevenueisaformation.Primitivelandformofitisacorrosivestackhillockplace.Themainbodyoftheholeexcavatedforbuildingfoundationsupportsandprotectionsusedifferentsupportsandprotectionssystemstosupportandprotectf

4、romtwosides.Onekindisthesupportsandprotectionssystembyuseingthedrillholefillingpileaddedwiththeanchorrod.Theexcavationdepthofthestructureis9m,andthetotallengthofthepileis13m.Anotherwayistheuseofearthnailwallsupportsandprotections,andtheexcavationdepthofthestructureis10m.Theholeexcavated

5、forbuildingfoundationusesthein-depthagitationpiletostopwaterandthedraintodrainwater.Thesoillayeranchorrodwillbeusedintheprojectpracticemorewidelyasoneemergingscience,anditwillbeofhigherscientificnature,usenature,anditwillbeconstructedconvenientlyanditwillnotoccupythelocation.Primarycove

6、rageofthedesigncontainsthechoiceofthesupportsandprotectionsplan,thedesignandthecomputationofthedrillholefillingpile,thecomputationoftheearthnailandtheanchorrod,thewaterstoppingoftheholeexcavatedforbuildingfoundation,theconstructionorganizationplanandbudgetsgenerally.Keywords:Deepholeexc

7、avatedforbuildingfoundationsupportsandprotections;Earthnailwall;Drillsaholethefillingpile;In-depthagitationpile;Anchorrodsupport;Constructionorganizationplan;Generallybudget.目录第1章设计方案综合说明11.1设计任务11.1.1本设计为基坑工程11.1.2基坑工程设计图纸要求11.1.3针对性设计专题在论文的相应章节详细论述11.2原始资料11.2.1工程概况11.2.2基坑周边