摘要
以福州地铁2号线各地铁车站典型地层为研究对象,根据人工冻土强度-温度曲线获得:随着冻结温度的降低,冻土的单轴抗压强度增高,其中砂土状强风化强度呈线性增大为0.233 MPa/℃;典型地层冻土的弹性模量平均增大为6.412~17.905 MPa/℃,且砂土弹性模型增长速度快。
In the subway station of Fuzhou metro line 2 typical strata as the research object,according to the uniaxial stress-strain curve of artificial frozen soil,the linear compressive strength of frozen soil is closely related to the temperature. With the decrease of freezing temperature,the strong weathering intensity of sandy soil increases linearly to 0. 233 MPa/℃; The elastic modulus of frozen soil increased linearly with the decrease of freezing temperature,the elastic modulus of typical frozen average increase for 6. 412 MPa/℃ to 17. 905 MPa/℃,and the sand elastic model is growing faster.
作者
刘子昕
张潮潮
周艳
LIU Zixin;ZHANG Chaochao;ZHOU Yan(Institute of Civil Engineering and Construction,Anhui University of Science and Technology,Huainan 232001,China;Nanjing Design and Research Institute Co.,Ltd,China Coal Technology and Engineering Group,Nanjing 210031,China;Anhui University of Technology,School of Business,Maanshan 243100,China)
出处
《四川建材》
2018年第8期79-80,共2页
Sichuan Building Materials
关键词
滨海冻土
人工冻土
力学性能
弹性模量
coastal frozen soil
artificial frozen soil
mechanical properties
elastic modulus
