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。
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.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2014年第S2期125-129,共5页
Chinese Journal of Geotechnical Engineering
关键词
基坑
湖相沉积
软土
抗剪强度
foundation pit
lacustrine deposits
soft soil
shear strength
