本科基坑毕业设计新沪路站基坑围护结构与施工组织设计.doc
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1、摘 要本毕业设计主要包括三个部分,第一部分是某某路站基坑围护结构设计;第二部分是某某路站基坑施工组织设计;第三部分是专题部分,淤泥质地层深基坑施工技术及应用。该基坑全长487.8m,由北端头井、标准段、南端头井三部分组成。其中,端头井开挖深度约为17.20m,宽22.4m;标准段开挖深度约为14.8m,宽为18.6m。基坑周围已建成建筑物较少,但交通繁忙,基坑施工可能会给基坑周围交通带来一定影响。结构设计主要是围护方案的选择、支撑的布置、结构内力的计算和结构强度的验算。施工组织设计主要是关于车站施工工艺、施工进度的控制以及施工质量控制等。对于该地铁车站施工的难点和重点是如何减少施工对附近交通的
2、影响和对周围建筑物的保护。我选用地下连续墙加内支撑的方法尽量控制地表沉降和基坑变形,保护附近建筑。其中,地基加固的形式我主要采用的是深层搅拌桩。专题部分,我做的是“淤泥质地层深基坑施工技术及应用”。介绍了淤泥质地基的特点,淤泥质地层深基坑施工技术的现状,各种施工技术在淤泥质地层深基坑支护中的应用,以及当前存在的技术问题和亟待研究解决的课题,展望了今后的发展。关键词:地下连续墙 地基加固 淤泥质 深基坑ABSTRACTThe graduation design mainly includes three parts,the first part is the new Shanghai road
3、station pit supporting structure design;The second part is construct and construction management design;The third part is the project section,silt texture layers deep foundation pit construction technology and application. The length of This excavation is 487.7m,by the north end shaft,standard secti
4、on,south end well of three parts. Among them,the depth of end well excavation is 17.20 m,the width is 22.4 m,the depth of standard excavation is 14.8 m,the width is 18.m.them. building around foundation pit is less,but heavy traffic,traffic.Structurenstruction may give foundation pit is an impact on
5、 traffic.Structure design is mainly palisade scheme selection,support arrangement,structural internal force calculation and the structure of strength are checked. The construction organization design is mainly about the station construction technology,construction schedule and the control of constru
6、ction quality control,etc.The difficulty and importance of the subway station construction is how to reduce the influence of construction on the nearby transportation and to the protection of the surrounding buildings. I use the way of underground continuous wall and support to control the earths su
7、rface settlement and excavations distortion in order to protect the building . The means of the ground stabilization are the Deep mixing pile.The project section,is Silt texture layers deep foundation pit construction technology and application.It introduces the characteristics of the foundation for
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- 本科 基坑 毕业设计 新沪路站 围护结构 施工组织设计