【摘要】 丹江口二桥由四跨预应力混凝土变截面连续箱梁组成,其中2号主墩基础入水深度达40多m,采用9根直径为2 0m的钻孔灌注桩,本文介绍2号主墩桩基础钻孔平台的施工新技术。更多还原

【Abstract】 The Second Danjiangkou Bridge consists of 4-span prestressed concrete variable cross-section continuous beams,the depth under water surface of the second main pier foundation is over 40m,and this foundation is composed of 92m diameter drilled grouting piles.In this article,authors introduce some new construction technologies of the drilling platform of the second main pier pile foundation.更多还原