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驸马长江大桥北岸锚碇平面尺寸为79m×48m,基底高程不高于215m。采用三角框架重力式嵌岩锚,锚体分为锚块、支墩及基础、前锚室等3部分。重力式锚碇的混凝土设计方量为64 778m3,工程部位均采用C35混凝土。现场施工采用收口网新型永久混凝土模板,从实际经济成本、工效、力学性能等方面进行试验分析,重点介绍了收口网应用于大体积混凝土施工现场,尤其是在大体积混凝土后浇带等工程中的施工应用和实践。
Anchorage of the north coast of Changjiang River Bridge is 70m × 48m and the base elevation is not higher than 215m. Using triangular frame gravity embedded rock anchor, anchor body is divided into anchor blocks, pier and foundation, the former anchor room and other three parts. Gravity anchor 碇 concrete design side of the amount of 64 778m3, engineering parts are used C35 concrete. The site construction adopts the new type of permanent concrete shuttering net template, from the actual economic costs, ergonomics, mechanical properties and other aspects of the test analysis, focusing on the shuttering network applied to the mass concrete construction site, especially in the mass concrete backwash zone engineering Construction application and practice.