【作者】 眭封云；

【导师】 田伟平；

【作者基本信息】 长安大学 ， 道路与铁道工程， 2006， 硕士

【摘要】 随着山区高等级公路建设的迅猛发展，许多对公路工程有影响的环境问题也越来越明显的显现出来，公路的水灾害问题就是其中之一。沿江河、湖区的公路建设，由于环境条件和水的相互作用，各类灾害频繁发生，甚至造成公路的严重水毁，导致人员伤亡和经济损失。库区水位的升降作用将对库岸和库区公路边坡稳定性产生重要影响，因此人们迫切需要寻求有效的分析方法与防治手段，预防和减小水灾害的影响。本文以百罗库区高速公路为例，在以下领域进行了有益的探讨。 (1)分析了影响库区公路边坡稳定性的因素，对地下水水位随水库水位升降以及降雨的波动问题进行了初步探讨，依据一定的假设条件，利用拉普拉斯变换(Laplace)，推导了浸润线变化公式，并利用ANsYS程序进行了验证分析：由于库水位升降及降雨均可导致地下水位的波动，找出了渗流过程中最不利的情况，同时提出了一些治理建议，为更好选择治理方案提供了有力依据。 (2)库区水位变化会引起公路边坡的不稳，通过对诸多公路边坡稳定性分析方法的比较，找出适合分析百罗公路边坡的最优分析方法，对百罗库区公路边坡进行了分析，根据分析结果提出了相应的防治建议。 (3)本文通过对塌岸的预测研究，概括总结出了各种塌岸模式，分析比较了塌岸预测方法，找出了适合分析百罗库区的最优分析方法，对百罗库区塌岸进行了预测，根据分析结果提出了相应的防治建议。更多还原

【Abstract】 As the swift and violent development of high-grade highway in mountain area, many environmental problems affecting highway projects appear more and more obviously and the water disaster problem of highway is an aspect. Because of the interaction of environmental condition and water, all kinds of disasters happen to the highway along river and lakeside frequently, even lead to great water damage and cause personnel casualties and economic loss. The fluctuation of water height in reservoir area influences the stability of highway slope in this area or along reservoir side, therefore people cry for effective analysis method and prevention and cure ways to guard and reduce water disaster. In this paper, I take the expressway in Bailuo reservoir for example and discuss helpfully in these fields as follows:(1) Factors that affect the stability of highway in reservoir area have been analyzed, and the change of groundwater level with the reservoir water level fluctuation and rainfall has been discussed preliminarily. According to certain assumed conditions and utilizing the Laplace vary, the author deduced the calculate formula of the soakage line and utilized ANSYS to check analysis. Because the fluctuation of reservoir water level and rainfall may cause the fluctuation of groundwater level, we’ve found out the worst condition during the seepage flow and put forward some father advice which can provide strong foundation for choosing a better precaution and cure way.(2) Water-level fluctuation in reservoir area lead highway slope to be unstable. Through comparing a great many highway slope stability analysis methods, the optimal method suitable for Bailuo highway analysis has been determined and been used to analysis the Bailuo highway slope. According to the Bailuo highway slope analysis result, we have put forward a few suitable prevention and cure advice.(3) Through bank slump forecasting, this paper has summarized all kinds of modes of bank slump. Through comparing a great many bank slump forecasting methods, we have get the best way to forecast the Bailuo bank slump. According to the result we have put forward a few suitable prevention and cure advice.更多还原