昆明湖相沉积软土区基坑土体抗剪强度分析研究

昆明湖相沉积软土区基坑土体抗剪强度分析研究 English Version

1. 中国有色金属工业昆明勘察设计研究院,云南昆明 650051;
2. 中南大学土木工程学院,湖南长沙 410000;
3. 陕西方圆工程设计有限公司,陕西西安 710000

详细信息

1. Kunming Prospecting Design Institute of China Noferrous Metals Industry, Kunming 650051, China;
2. Central South University, Changsha 410000, China;
3. Shaanxi Fangyuan Engineering Design, Xian 710000, China

摘要: 土体抗剪强度是基坑支护设计中一项重要的力学指标,特别是软土地区,其指标的取用直接决定支护方案的成败。依据一工程实例,结合现场实测资料,对5种不同的抗剪强度分别采用理正深基坑计算软件进行计算,并与现场实际监测结果进行了对比分析及通过有限元模拟验证,提出了适合昆明湖相沉积软土区基坑土体抗剪强度指标的取用建议。
- 基坑 /
- 湖相沉积 /
- 软土 /
- 抗剪强度
Abstract: The shear strength is an important mechanical index for design of retaining structure for foundation pits, especially in soft soil areas. The index directly determines the success or failure of supporting scheme. Based on an engineering example, by combining field data, five different shear strengths are calculated using Lizheng software for deep excavations. The actual monitoring results are analyzed and verified through finite element analysis. Suitable shear strength indices are proposed for foundation pits in soft soil areas of lacustrine deposits in Kunming.
- foundation pit /
- lacustrine deposits /
- soft soil /
- shear strength

[1]	中国有色金属工业昆明勘察设计研究院. 西山区第20号城中村改造项目回迁安置房三期基坑专项岩土工程勘察报告[R]. 昆明: 中国有色金属工业昆明勘察设计研究院, 2011. (Kunming Prospecting Design Institute of China Noferrous Metals Industry. The third period foundation speciai geotechnicai engineering investigation report of the Xishan district 20 th village reconstruction project[R]. Kunming: Kunming Prospecting Design Institute of China Noferrous Metals Industry, 2011. (in Chinese))
[2]	郭一鹏. 昆明地区土体抗剪强度参数分析与研究[D]. 昆明: 昆明理工大学, 2012. (GUO Yi-peng. Analysis and research of soil shear strength for kunming area based on engineering examples[D]. Kunming: Kunming University of Science and Technology, 2012. (in Chinese))
[3]	工程地质手册编写组.工程地质手册[M]. 北京: 中国建筑工业出版社, 2007. (Engineering Geology Manual Writing Team. Engineering geology manual[M]. Beijing: China Architecture & Building Press, 2007. (in Chinese))