In the construction of expressway in mountain area, the contradiction of the maximum longitudinal slope with engineering's volume and cost is very prominent.

山区高速公路建设中，路线最大纵坡与工程量、工程造价的矛盾十分突出，若严格执行标准会出现大量高填、深挖路基、长大桥梁及隧道。

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Meanwhile, analyze the impact of wheel drive force on the structure stress under the situation that vehicle pass the composite bridge deck with longitudinal slope.

同时，对车辆通过带纵坡的复合桥面铺时车轮驱动力对结构受力的影响进行了分析。

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With the rapid development of highway construction in our country, more and more attention was paid to the bridge deck textural association style under the conditions of large longitudinal slope.

随着我国公路建设的飞速发展，长大纵坡条件下的桥面铺装结构组合的重要性越来越受到人们的重视，同时桥面铺装结构组合的稳定性问题一直是道路建设中的一项技术难题。

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