路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
4期
159-161
,共3页
高路堤%欠压实区%不均匀沉降%有限元
高路隄%欠壓實區%不均勻沉降%有限元
고로제%흠압실구%불균균침강%유한원
high embankment%under-compaction area%uneven settlement%finite element
由于碾压机械施工困难等原因导致路基边缘压实度不能得到保证,形成欠压实区,尤其路基填方过高时,在欠压实区及压实区之间由于沉降差异容易产生纵向通缝。通过对压实不均匀的高填方路基沉降特性进行的有限元模拟分析,比较了不同工况下路基欠压实区与正常压实区之间的的差异沉降,对减少高路堤病害具有现实意义。
由于碾壓機械施工睏難等原因導緻路基邊緣壓實度不能得到保證,形成欠壓實區,尤其路基填方過高時,在欠壓實區及壓實區之間由于沉降差異容易產生縱嚮通縫。通過對壓實不均勻的高填方路基沉降特性進行的有限元模擬分析,比較瞭不同工況下路基欠壓實區與正常壓實區之間的的差異沉降,對減少高路隄病害具有現實意義。
유우년압궤계시공곤난등원인도치로기변연압실도불능득도보증,형성흠압실구,우기로기전방과고시,재흠압실구급압실구지간유우침강차이용역산생종향통봉。통과대압실불균균적고전방로기침강특성진행적유한원모의분석,비교료불동공황하로기흠압실구여정상압실구지간적적차이침강,대감소고로제병해구유현실의의。
The compactness of subgrade shoulder can not be guaranteed due to roiling, difficult construction and other reasons resulting in under-compaction area. Especially where subgrade fill is too high, longitudinal through crack would be caused easily because of different settlements between under-compaction and compaction areas. The settlement characteristics of uneven compacted high fill subgrade is analyzed with finite element simulation and the settlement discrepancies between the under-compaction and compaction areas in different cases are compared, which have realistic meanings to reduce high embankment diseases.
