基坑支护工程方案设计（本科毕业设计）.doc

基坑支护毕业设计 摘要 本设计是作者根据武广客运专线新长沙站西端明挖区基坑工程的实习，通过搜集到的现场资料、参考相关的规范规程完成的。设计的核心内容为基坑支护方案论证、设计计算、施工组织设计以及工程预算书。根据场地的工程水文地质条件和周边环境，在满足变形和稳定的前提下，结合经济和技术约束因子，确定了以土钉墙、锚杆和放坡共同组成的复合支护方案。设计计算参考了当地同类工程的经验和各种规程规范提供的计算方法，经北京理正软件验算，各设计参数满足稳定和变形的要求。根据建设方的工期要求，制定了一个详细、科学的施工组织设计。预算得到的工程总造价为6996402.44元，单位造价为710.6元/m2. 关键词:基坑；土钉墙；锚杆；方案论证；预算 Design of New ChangSha Station Western Foundation Pit Engineering for Wuhan-Guangzhou Passenger Dedicated Line Abstract According to the practice experience in construction site of the western foundation pit engineering of new ChangSha station of Wuhan-Guangzhou passenger dedicated line，the project of foundation excavation is designed by collecting local information and consulting related rules. The core parts of this design includes: foundation pit project argument , design and account, construction and organization design, engineering budget. Considering engineering geologic conditions and hydrogeological conditions, also precedents in the requirement of deformation and stability,connecting with the ingredient economy and technique, the author chosen a compound retaining methods of soil nailing wall ,soil anchor and sloping.Refering to experiment of local analogous engineering and account method providing by various rules while designing and accounting ,via examing by BeiJing Lizheng software, each design coefficient was content with the requirement of stability and deformation. According to the requirement of erector, the author established a detail and scientific construction organization design.The total construction cost of the project budget is 6996402.44 yuan ,the unit construction cost of the project budget is 710.6 yuan per square meter. Key words: foundation pit ; soil nailing wall; soil anchor ; project argument; budget 前 言 随着城市化进程的加速发展，地表空间已不再满足人们的需求，向地下空间进行多层次利用是必然的趋势。深基坑支护工程设计技术是在这种条件下应运而生的，它不仅包含了土力学中典型的强度、稳定与变形问题，而且又涉及到土与支护结构的共同作用，是一个综合性的岩土工程问题。要提高基坑支护的设计与施工水平，首先要选择一个合适的理论计算模型作为依据，然后再选择合理的基坑支护方案，最后就是要具备较成熟的施工经验。 本学期伊始，在胡二中老师的指导下，我在武广客运专线