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桥头跳车的 原因 路基与桥台结构差异。桥台一般是刚性的．而路基则是柔性的，经实测，桥台的回弹模量大于1200MPa．而一般填土路基在压实度达95％时的回弹模量仅为30～80MPa。它们的自重不同．强度也不同。由于这两种结构的差异．在路桥过渡段内．当受到动荷载作用时，刚柔之间必然存在沉降差。
桥头跳车的预防与处治
【摘 要】
：
桥头跳车的 原因 路基与桥台结构差异。桥台一般是刚性的．而路基则是柔性的，经实测，桥台的回弹模量大于1200MPa．而一般填土路基在压实度达95％时的回弹模量仅为30～80MPa。它们的自重
【机 构】
：
邢台路桥建设总公司
【出 处】
：
交通世界(建养.机械)
【发表日期】
：
2009年13期
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