高墩深基础条件下高速公路桥梁下部结构施工技术实践
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常清
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云南长基工程建设有限公司,云南昆明,650000
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摘要:在复杂地形与严苛地质条件下,高墩深基础已成为高速公路桥梁跨越峡谷、河流等障碍的关键技术选择,其下部结构施工的质量直接决定着整座桥梁的安全、耐久与经济性能。面对墩高超限、基础深埋、地质多变及环境敏感等多重挑战,传统的施工方法在效率、精度与风险控制上均显现出局限性。因此,系统研究并整合适用于高墩深基础条件的先进、可靠、精细化的下部结构施工技术体系,对于提升我国山区高速公路桥梁建设整体水平、保障重大基础设施生命线安全具有至关重要的工程意义与实践价值。
关健词:高速公路;桥梁;高墩施工
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Construction Technology Practice for Substructure of Expressway
Bridges under High-Pier and Deep-Foundation Conditions
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Qing Chang
Yunnan Changji Engineering Construction Co., Ltd.,Kunming Yunnan 650000,China
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Abstract:Under complex terrain and demanding geological conditions, high piers with deep foundations have become a key technical choice for expressway bridges to span obstacles such as gorges and rivers. The quality of substructure construction directly determines the safety, durability, and economic performance of the entire bridge. Faced with multiple challenges such as excessive pier height, deeply embedded foundations, variable geology, and environmental sensitivity, traditional construction methods reveal limitations in efficiency, precision, and risk control. Therefore, systematically researching and integrating advanced, reliable, and refined substructure construction technologies suitable for high-pier and deep-foundation conditions is of critical engineering significance and practical value for enhancing the overall construction level of expressway bridges in mountainous areas of China and ensuring the safety of major infrastructure lifelines.
Keywords : Expressway;Bridge;High-Pier Construction
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