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高速公路因其具有建设线路长,跨越地质变化区域较多的特点,导致现场施工与图纸设计容易出现偏差,尤其是位于风化、破碎等挖方路基的边坡容易出现坍塌情况,而这往往存在施工前期难于预计,施工中期难于处理,施工后期难于维护的问题,本文通过工程实例施工,就风化破碎挖方坡面的防护与处理做了实践性描述,着力探讨挖方特殊地质边坡出现坍塌前的可行性处理办法,做到在确保交通行车安全的同时,做好山体水土保持工作,尽力减少工程后期的养护与维修费用.为类似工程的施工提供可行性参考。
Due to the characteristics of the expressway being long in construction and more in areas with varied geologic alterations, the construction and drawing design of the expressway tend to be prone to deviation. In particular, the slopes located on weathered and crushed roadsides are likely to collapse, which is often caused by the construction Difficult to predict in the early stage, difficult to deal with in the middle of construction, and difficult to maintain in the later stage of construction. This paper describes the protection and treatment of the weathered crushing slope by engineering example construction, and tries to discuss the feasibility before the collapse of the special geological slope So as to ensure the traffic safety while doing a good job of mountain soil and water conservation efforts to minimize maintenance and repair costs of the project late for the construction of similar projects to provide a viable reference.