某复杂场地岩土工程深基坑设计方案分析与优化
Analysis and Optimization of Deep Foundation Pit Design Scheme for Geotechnical Engineering in a Complex Site
孙洪岩 1杨平2
作者信息
- 1. 江苏华都建设有限公司 南京市 210007
- 2. 南京林业大学土木工程学院 南京市 210037
- 折叠
摘要
该文以南京市某基坑支护工程为例,改进钢筋混凝土灌注桩结合内支撑支护的方案.通过使用理正深基坑7.0 软件,计算原方案和改进后方案的抗倾覆稳定系数和整体稳定系数,并在基坑施工的过程中,对内支撑轴力、支护结构、立柱的横向和纵向位置偏移等精确数据进行实时记录,将计算的数据跟原设定的数据进行了对比分析.结果表明:优化后的设计方案不论在施工时间、对周边网管和周边环境保护以及施工安全系数、经济性等方面,比原方案更具优势,为复杂场地地下岩土基坑设计提供了参考.
Abstract
This paper takes a foundation pit support project in Nanjing city as an example to improve the scheme of combining reinforced concrete cast-in-place piles with internal support.By using the Lizheng Deep Foundation Pit 7.0 software,the anti-overturning stability coefficient and overall stability coefficient of the original and improved schemes are calculated.During the construction process of the foundation pit,accurate data such as internal support axial force,support structure,and lateral and longitudinal dis-placement of columns are recorded in real time.The calculated data is compared and analyzed with the o-riginal set data.The results show that the optimized design scheme has more advantages than the original scheme in terms of construction time,surrounding network management and environmental protection,construction safety factor,economy,etc.,providing reference for the design of complex underground rock and soil foundation pits.
关键词
复杂场地/岩土工程/深基坑设计/方案优化Key words
complex site/geotechnical engineering/deep foundation pit design/scheme optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据