检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:吴正恺 WU Zheng-kai(Shanghai Urban Construction Design&Research InstituteCo.,Ltd.,Shanghai 200125,China)
机构地区:[1]上海市城市建设设计研究总院(集团)有限公司,上海200125
出 处:《中国市政工程》2023年第6期68-72,103,共6页China Municipal Engineering
基 金:住房和城乡建设部科技示范项目(2021-S-058);广东省住房和城乡建设厅科技创新计划项目(2020-K4-534762);珠海市科技计划项目(ZH22036204200009PWC)。
摘 要:以珠海市兴业快线(北段)下穿梅华东路隧道为工程背景,比对理论计算结果与工程监测数据,分析超大断面类矩形顶管管节在典型华南地区“上软下硬”地质条件下的力学特性。通过研究发现,该地质条件下结构受力形式并非理想状态下均匀且对称分布,常用的土压力计算理论更适用于上部软土地层,下部硬质地层土压力分布的离散性要大于上部软土地层,底部硬岩造成底部支座约束较强,导致结构两侧受力与理想状态的对称形态有所差异。Taking the East Meihua Road Tunnel under the Xingye Express Line(North Section)in Zhuhai as the engineering background,the theoretical calculation results&engineering monitoring data are compared to analyze the mechanical characteristics of the ultra large cross-section rectangular top pipe joint under typical geological conditions of upper soft&lower hard in southern China.Through research,it has been found that the force distribution of the structure under this geological condition is not uniformly&symmetrically distributed under ideal conditions.The commonly used theory of soil pressure calculation is more suitable for upper soft soil strata.The discreteness of soil pressure distribution in lower hard strata is greater than that in upper soft soil strata.The bottom hard rock creates strong constraints on the bottom support,resulting in differences in the symmetrical shape of the force on both sides of the structure compared to the ideal state.
分 类 号:U456.3[建筑科学—桥梁与隧道工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.171