摘要
袁家坝特大桥为沪蓉国道主干线湖北宜昌至恩施公路第22标段主要工程之一，位于巴东县大支坪镇袁家坝村境内，跨越抽堤沟。在开挖深路堑并支护高边坡基本完成后，在雨季强降雨影响下，发生了变形破坏，对公路建设和运营造成很大影响。本文阐述了高边坡基本形态及变形破坏成因机制，为工程设计、施工、运行提供科学依据。
Abstract
Yuan Jia Ba bridge is one of the main project of Shanghai Chengdu national trunk line of Hubei Yichang to Enshi highway twenty-second section, located in the big Zhi Ping Jia Ba Cun Zhen Yuan Badong County, across the ditch pumping. In the excavation of deep cutting and support of high slope in rainy season basically completed, the strong rainfall influence, deformation damage, a great impact on the construction and operation of highway. This paper expounds the formation mechanism of the basic form of deformation and failure of high side slope, and provide scientific basis for engineering design, construction and operation.
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