银泰中心深基坑工程技术研究

发布时间：2018-11-23 18:34

【摘要】：近三十年来,随着我国城市化进程建设的快速发展,基坑工程作为建筑工程重要的组成部分越来越受到相关政府部门和工程界的高度重视,尤其是在寸土寸金的超大城市里,基坑开挖的深度越来越深,开挖的条件越来越复杂,对深基坑技术提出了更为严格的要求,并且深基坑理论的研究滞后于实际工程经验,所以深基坑事故频发,基坑工程已经成为工程界最为关注的问题之一。成都银泰中心是一个集商业、娱乐、酒店、酒店式办公、办公和住宅等功能于一体的大型公共建筑群。项目总规划用地面积45000平米,项目场地西侧为天府大道北段,与金融城总部商务区隔路相望;北侧为锦晖西一街;与成都首座MAX紧靠;东侧为天顺路;南侧为名都公园。基础采用筏板基础,设4层地下室,最深开挖深度达25.8m,场地周边分布有较多的地下管线,其中场地北侧有东西走向承担成都市区一半以上电力供应的供电管沟,而且紧靠管沟另一边是正在进行基础工程施工的成都首座MAX高层建筑,该项目的实际情况比较复杂,在设计和施工数据处理方面需要进行特别的分析研究。为此,本论文主要通过研究该基坑工程项目,对深基坑开挖期间深基坑施工关键技术、深基坑支护方案设计、降水方案以及基坑开挖及使用期间的变形进行了分析研究,在通过对工程设计和施工资料数据进行归纳优化整理,对成都银泰中心深基坑的支护结构的内力、土压力计算、支护结构稳定及变形监测等相关内容进行分析,总结该项目深基坑工程的设计原理和工程经验,希望为以后类似的深基坑工程提供设计理论依据和工程经验参考。
[Abstract]:In the past 30 years, with the rapid development of urbanization in our country, foundation pit engineering, as an important part of construction engineering, has been paid more and more attention by the relevant government departments and engineering circles, especially in mega-cities with an inch of land and an inch of gold. The depth of excavation is getting deeper and deeper, and the conditions of excavation are becoming more and more complex, which puts forward more strict requirements for deep foundation pit technology, and the research of deep foundation pit theory lags behind the practical engineering experience, so the accidents of deep foundation pit occur frequently. Foundation pit engineering has become one of the most concerned problems in engineering field. Chengdu Yintai Center is a commercial, entertainment, hotel-style office, office and residential functions in one of the large public buildings. The total planning area of the project is 45000 square meters, the project site is the north section of Tianfu Avenue to the west, opposite the business district of the City headquarters; the north side is Jinhui West first Street; it is next to the first MAX in Chengdu; the east side is Tianshun Road; and the south side is the famous Capital Park. The foundation adopts raft foundation, with four basements, the deepest excavation depth being 25.8 m, and there are more underground pipelines distributed around the site, in which the east and west side of the site have the power supply trenches which bear more than half of the electric power supply in Chengdu urban area. On the other side of the pipe ditch is the first MAX high-rise building in Chengdu, which is under construction. The actual situation of the project is quite complex, so it is necessary to carry out special analysis and research in the design and construction data processing. Therefore, through the research of the foundation pit project, this paper analyzes the key technology of deep foundation pit construction, the design of deep foundation pit support scheme, the dewatering scheme, and the deformation during the excavation and use of the deep foundation pit. By summarizing and optimizing the data of engineering design and construction, this paper analyzes the internal force, calculation of earth pressure, stability of supporting structure and deformation monitoring of the deep foundation pit of Yintai Center in Chengdu. This paper summarizes the design principle and engineering experience of the deep foundation pit engineering of the project, hoping to provide the design theory basis and engineering experience reference for the similar deep foundation pit engineering in the future.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU753

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