| 复杂环境下的桥墩基坑支护施工及监测 |
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| 引用本文： | 姜志刚.复杂环境下的桥墩基坑支护施工及监测[J].建筑技术,2012,43(4):340-344. |
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| 作者姓名： | 姜志刚 |
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| 作者单位： | 中铁航空港建设集团北京有限公司,100093,北京 |
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| 摘 要： | 曹妃甸纳潮河大桥工程,主桥墩承台基坑最大深度达13.5m,且紧邻既有铁路线及防浪堤,承台基坑施工中采用钢板桩+内支撑组合支护体系,并采取D型便梁对紧邻的铁路线路进行加固,选择桩基作为便梁的支墩,达到确保施工安全和既有铁路安全运营,顺利完成纳潮河大桥建设。
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| 关 键 词： | 桥墩 深基坑 基坑支护 D型便梁 钢板桩 内支撑 加固 |
CONSTRUCTION AND MONITORING TECHNIQUE OF BRIDGE PIER FOUNDATION PIT SUPPORT UNDER COMPLEX CONDITIONS |
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| JIANG Zhi-gang.CONSTRUCTION AND MONITORING TECHNIQUE OF BRIDGE PIER FOUNDATION PIT SUPPORT UNDER COMPLEX CONDITIONS[J].Architecture Technology,2012,43(4):340-344. |
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| Authors: | JIANG Zhi-gang |
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| Affiliation: | JIANG Zhi-gang (China Railway Airport Construction Group Co., Ltd., 100093, Beijing, China) |
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| Abstract: | In Caofeidian Nachao River Bridge project, the foundation pit of main bridge pier base has a maximum depth of 13.5m and it is adjacent to railway and breakwater. During construction of foundation pit, the combined supporting system of steel sheet pile plus internal support is adopted, D-type beam is used tostrengthen adjacent rail line, and pile foundation is selected as a base supporting the beam, so as to guarantee construction safety and safe operation of existing railway and to successfully complete the Nachao River Bridge project. |
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| Keywords: | bridge pier deep foundation pit foundation pit support D-type beam steel sheet pile internal support strengthening |
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