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| 济南市区段暗涵冬期施工技术研究与实践 | |
| 作者姓名： | 徐瑞兰 周韶峰 马黔 张玉源 刘博 |
| 作者单位： | 1. 山东省南水北调济南至引黄济青段工程建设管理局,济南,250013 2. 国务院南水北调工程建设委员会办公室,北京,100053 3. 山东大禹工程建设有限公司,济南,250013 4. 山东省水利工程局,济南,250013 |
| 摘 要： | 济南市区段输水暗涵济洛路至洪家园桥段跨冬季施工，结合工程特点采用暖棚法施工，采取经济有效的暖棚支架和外敷保温材料。根据可施工工作面及热源条件，加热方式采取蒸汽锅炉通过管道向暖棚内供热。同时采取混凝土强度试件与洞身同条件养护，以检验拆模及拆暖棚的时机。为控制混凝土内外温差，同时保证混凝土达到设计强度85％前不受负温，暖棚拆除后对裸露混凝土表面继续保温养护。 |
| 关 键 词： | 输水暗涵 冬季施工 暖棚 加热 养护 拆模（棚） |
Construction Technology Study and Practices of Buried Culvert in Ji'nan Urban in Winter |
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| Authors: | XU Rui-lan ZHOU Shao-feng MA Qian ZHANG Yu-yuan LIU Bo |
| Affiliation: | 1. Construction & Management Bureau of the Ji'nan-to-Water Diversion of Huanghe-Qingdao Project/a>;Ji'nan 250013/a>;China/a>;2. Office of the South-to-North Water Diversion Project Construction Committee of the State Council/a>;Beijing 100053/a>;3.Shandong Dayu Project Co./a>;Ltd/a>;4. Shandong Water Project Bureau/a>;China |
| Abstract: | In winter construction of water transfer buried culvert in Ji'nan Urban from Jiluo Road to Hongjiayuan,we adopted warm shed construction and outside wrapping heat preservation material. Based on construction working face and heat-fountainhead condition,we apply steam boiler as heating up mode for warm shed. A same curing condition was chosen with concrete intensity test piece and hollow-body to check up time of removing mould (shed). To control difference in temperature of concrete inside and outside,and to... |
| Keywords: | water transfer buried culvert construction in Winter warm shed calefaction curing remove mould (shed) |
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