方明豹,田琨,李守龙.海岛大型能源项目场平工程设计的关键技术研究[J].中国水利水电科学研究院学报,2023,21(1):55-63
海岛大型能源项目场平工程设计的关键技术研究
Research on key technologies of site flat engineering for island large energy project
投稿时间:2022-01-04  
DOI:10.13244/j.cnki.jiwhr.20220001
中文关键词:  海岛  大型能源项目  场平工程  关键技术  开山防护  围堤  地基处理  沉降
英文关键词:island  large energy project  land leveling  key technology  mountain cutting protection  dike  ground improvement  settlement
基金项目:
作者单位
方明豹 国核浙能核能有限公司, 浙江 杭州 310012 
田琨 国核浙能核能有限公司, 浙江 杭州 310012 
李守龙 中交第三航务工程勘察设计院有限公司, 上海 200032 
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中文摘要:
      本文根据某海岛核电项目的工程实践,对海岛大型能源项目场平工程设计中的关键技术进行了研究与分析。根据不同边坡工况对开山边坡防护提出了对应稳定分析方法,确定采用合适的综合防护方式,并辅以动态设计及信息化施工;根据围堤使用要求,确定合理设计标准,并综合比选堤身结构形式、护面结构及地基处理方式,提出了爆破挤淤震动相关控制措施;针对场地回填区软土厚度差异较大、回填厚度大等特点,确定合适的回填区地基处理标准,并综合比选地基处理方案,提出了减小差异沉降的措施;同时考虑场地总沉降及差异沉降对取排水管涵结构内力的影响,通过数值模拟分析,提出了回填区管涵地基处理方案与建议。本文研究可为海岛大型类似项目场平工程提供设计参考和技术支撑。
英文摘要:
      Based on an island nuclear power project practice and related background materials,this paper proposed and analyzed the key technologies in the land leveling design of the large island energy project.For the protection of the mountain cutting slope,the corresponding stability analysis method was suggested,and the applicable comprehensive protection method,together with dynamic design and the information-based construction as auxiliary measures,was determined according to different slope conditions.According to the requirements for the use of the dike,reasonable design standards were determined,while the dike body structure,the protection layer structure and the ground improvement method were selected through a comprehensive comparison,and the related vibration control measures for the explosive replacement method was proposed.In view of the characteristics of widely varied soft soil thickness and thick backfill layer,suitable ground improvement standards were set,the ground improvement method was selected through a comprehensive comparison,and suggestions for reducing the differential settlement were proposed.In the interaction between the water intake and drainage structure and the land formation,the influence of the total and differential settlement on the internal forces of the intake and drainage pipe and culvert structure was mainly considered,and suggestions on the ground improvement for the pipes and culverts in the backfill area were proposed through numerical simulation analysis.This study can provide a reference for the land leveling design of similar large island projects.
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