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在公路分类等级中,二级公路因其便利性和灵活性占据了重要地位,因而近年来在我国,尤其是在山岭重丘区得到了长足的发展。但是由于对环境因素预估不足,尤其在深挖方段的稳定性方面存在问题,严重影响公路安全。本文在综合研究多条山岭重丘区公路深挖方段的基础上,提出了稳定性评价的原则和程序,阐述了评价方法,并结合实际提出可行的安全预防措施。
In the highway classification level, the secondary highway occupies an important position because of its convenience and flexibility, so in recent years in our country, especially in the mountain heavy hill area has made considerable development. However, due to the underestimation of environmental factors, especially in the deep excavation section of the stability problems, serious impact on road safety. Based on the comprehensive study of several deep excavation sections in mountainous heavy hilly area, this paper puts forward the principles and procedures of stability evaluation, expounds the evaluation methods and puts forward feasible safety precaution measures.