钻孔灌注桩加锚杆支护设计.doc

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1、山水人家3号地块基坑支护设计摘要本设计为住宅楼的基坑支护设计。本设计是根据行业现行建筑基坑支护技术规程,在给定地质勘察报告的条件下，进行基坑支护设计，主要目的是掌握基坑支护的设计方法。本设计采用了钻孔灌注桩加锚杆的基坑支护结构。在土压力计算过程中，运用了朗肯土压力理论；在力计算过程中，运用了等值梁法；在配筋计算过程中，参照了混泥土结构设计规;在降水处理设计时参照了建筑基坑支护技术规程；计算过程中除了以国家现行建筑基坑工程技术规程为依据外,还大量的把实际经验运用其中,加强理论与实践的结合。此次设计的主要指导原则是如何保证

2、基坑的安全可靠、方便施工，并达到经济的效果。通过这篇设计说明书，直观的说明了基坑支护设计所需的各种参数。工程技术人员在进行基坑支护设计时可参照本文的设计方法。关键词：基坑支护，钻孔灌注桩，等值梁法，锚杆，降水处理PITBRACINGDESIGNOFSHAOXINGSHANSHUIRENJIALOT3ABSTRACTThisdesignisthefoundationpitdesignforresidentialbuilding.Thedesignisbasedontheexistingoccupationbuilding

3、technicalreguations,excaration,geologicalsurveyinthegivenconditionsofthereportdesignfoundationpit.Themainpurposeofthedesignistograspthedesignmethodsoffoundationpit.Thedesignhasusedthefoundationpitmethodsofboredcaissonpilewithpile-anchor.Duringthecalculatingofsoi

4、lpressure,putthesoilpressuretheoriesofW.J.M.Rankinetouse;Inthecourseofcalculatingininternalforce,makeuseoftheequivalentbeammethod;whenmatchingthesteeltocalculate,havecomplywiththecementstructuredesignspecificationnorm;Inthedesignofdraining,makeuseofthetechnicals

5、pecificationforretaining.Andstrengthenedthecombinationoftheactualexperiencewiththetheories.Theguidelineofthisdesignishowtoguaranteethefoundationpitsafe、reliable、convenienttoconstruct,andwhetherreachtheeconomicresultornot.Throughthispapers,wecanseevariouskindsofp

6、arametersthatareneededinthefoundationpitdesign.Engineersandtechnicianscanconsultthedesignmethodofthistextwhilecarryingonthefoundationpitdesign.KEYWORDS:foundationpit,boredcaissonpile,equivalentbeammethod,pile-anchor,draining目录摘要（中文）..............................

7、................................1摘要（外文）............................................................21绪论..................................................................12山水人家3号地块地质水文概况......................................22.1工程概况...............................

8、...........................22.2工程地质概况.....................................................．22.2.1地形、地貌及环境条件.........................................22.2.2地基土的构成与分布特征.