新旧路基差异沉降控制标准与分级研究  

Differential Settlement Control Standard and Classification of Old and New Subgrade

作　　者：何伟能 李珏池 张贤 陈忠云 李纯 He Weineng;Li Juechi;Zhang Xian;Chen Zhongyun;Li Chun(Foshan Guangfo Zhao Expressway Co.Ltd.,Foshan,Guangdong 528137;Foshan Transportation Science and Technology Co.Ltd,Foshan,Guangdong 528041;Road and Bridge supervision Station Corporation Limited,Foshan,Guangdong 528041)

机构地区：[1]佛山市广佛肇高速公路有限公司,广东佛山528137 [2]佛山市交通科技有限公司,广东佛山528041 [3]佛山市公路桥梁工程监测站有限公司,广东佛山528041

出　　处：《江西建材》2022年第7期40-41,44,共3页Jiangxi Building Materials

摘　　要：为控制新旧路基差异沉降带来的路面病害问题,利用有限元软件进行理论分析,文中对比研究了最大差异沉降为2cm、4cm、6cm、8cm、10cm下水平附加应力变化规律,基于基层极限抗拉强度和基层容许拉应力双控指标,结合整体边坡率指标,提出基于疲劳开裂的路基差异沉降控制标准及分级。To control the differential settlement between old and new roadbed pavement disease problem, using the theory of finite element software analysis, comparative study the maximum differential settlement is 2 cm, 4 cm, 6 cm, 8 cm, to 10 cm under horizontal additional stress change rule, based on the ultimate tensile strength and the allowable tensile stress at the grass-roots level double control index,combined with the overall rate of slope,The control standard and classification of subgrade differential settlement based on fatigue cracking are proposed.

关 键 词：道路工程 半刚性基层 差异沉降 控制标准 分级 

分 类 号：U416.21[交通运输工程—道路与铁道工程]