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.
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)
出处
《江西建材》
2022年第7期40-41,44,共3页
Jiangxi Building Materials
关键词
道路工程
半刚性基层
差异沉降
控制标准
分级
ARoad engineering
Semi-rigid base
Differential settlement
Control standard
Classification
