摘要
土钉加排桩复合围护结构是新近出现的一种深基坑围护结构形式。在缺少类似工程经验的情况下,结合详细的现场监测数据,借助有限元软件对该复合围护结构进行计算,分析土钉和排桩各自的受力变形性状以及它们之间共同作用的特性。通过有限元计算与现场监测结果的对比,提出基于室内土工试验结果的同类硬黏土弹性模量的取值方法,并对复合围护结构中土钉与排桩的共同作用进行分析,给出设计和计算分析的实用方法。
A new type of composite building enclosure is applied to deep excavations recently,which is composed of soil nailing and cast-in-pile.A finite element software is used to analyze this new kind of building enclosure and make a detailed comparison between the measured stresses and in-situ displacements.The interaction of these two parts of the enclosure is also analyzed;and some useful results on the interaction of these two parts are derived from the numerical analysis.Based on the comparison results,the elastic modulus of some given stiff clay in finite element analysis for excavation is suggested based on the laboratory test.In the designing procedure of this type of composite building enclosure,some practical methods are also recommended.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2007年第1期169-174,共6页
Chinese Journal of Rock Mechanics and Engineering
关键词
土力学
土钉
排桩
复合围护结构
共同作用
soil mechanics
soil nailing
cast-in-pile
composite building enclosure
interaction
