施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
16期
63-65
,共3页
桥梁工程%模板%液压模板%高墩%应用
橋樑工程%模闆%液壓模闆%高墩%應用
교량공정%모판%액압모판%고돈%응용
bridges%formwork%hydraulic formwork%piers%application
目前山区桥梁较多，桥墩较高，最高墩高达195m。高墩施工较成熟工艺主要有翻模、爬模、滑模，其中翻模施工安全危险性高；爬模施工对混凝土初凝控制要求高，预埋件易于破坏新浇筑混凝土；滑模施工对混凝土要求较高、外观控制困难，一般不选择使用。在天池特大桥高墩施工中，通过设计、不断改进，将滑模及翻模优点结合起来，形成高墩液压滑翻结合系统，解决了高墩施工存在的各种问题。
目前山區橋樑較多，橋墩較高，最高墩高達195m。高墩施工較成熟工藝主要有翻模、爬模、滑模，其中翻模施工安全危險性高；爬模施工對混凝土初凝控製要求高，預埋件易于破壞新澆築混凝土；滑模施工對混凝土要求較高、外觀控製睏難，一般不選擇使用。在天池特大橋高墩施工中，通過設計、不斷改進，將滑模及翻模優點結閤起來，形成高墩液壓滑翻結閤繫統，解決瞭高墩施工存在的各種問題。
목전산구교량교다，교돈교고，최고돈고체195m。고돈시공교성숙공예주요유번모、파모、활모，기중번모시공안전위험성고；파모시공대혼응토초응공제요구고，예매건역우파배신요축혼응토；활모시공대혼응토요구교고、외관공제곤난，일반불선택사용。재천지특대교고돈시공중，통과설계、불단개진，장활모급번모우점결합기래，형성고돈액압활번결합계통，해결료고돈시공존재적각충문제。
At present, there are many bridges and high piers in mountain. The highest pier is up to 195m. Some mature high piers construction technologies have turnover formwork, climbing formwork and sliding formwork. In these, turnover formwork is high-risk for construction safety. And during climbing formwork construction, the initial setting time of concrete must be controlled, and the embedded parts are easy to destroy the new pouring concrete. The sliding formwork construction has higher requirement for concrete surface, and is usually not used. In high pier construction of Tianchi Bridge, by detailed design and development, sliding-turnover hydraulic formwork combination system is formed by combing with the advantages of sliding formwork and turnover formwork, which can solve these problems occurred in high pier construction.
