| 杨青杰,段媛媛,李陆明,张兆省,皇甫泽华.采砂扰动砂砾料筑坝质量控制探讨[J].中国水利水电科学研究院学报,2021,19(3):356-360 |
| 采砂扰动砂砾料筑坝质量控制探讨 |
| Discussion on quality control of sand and gravel dam construction with sand mining disturbance |
| 投稿时间：2020-02-06 |
| DOI：10.13244/j.cnki.jiwhr.20200012 |
| 中文关键词: 扰动砂砾料 筑坝 质量控制 |
| 英文关键词:disturbed gravel dam construction quality control |
| 基金项目:国家重点研发计划课题（2016YFC0401601）；国家自然科学基金项目（51679264）；河南省水利科技计划攻关项目（GG201812） |
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| 中文摘要: |
| 前坪水库原规划料场为天然级配砂砾料，由于人工采砂扰动，导致原规划料料场上层砂砾（卵）石料细颗粒缺失，改变了料场砂砾（卵）石料天然级配曲线、物理力学参数等。如何针对人工采砂扰动砂砾料开展筑坝质量控制工作是值得探讨的问题。本文依据相关规范和设计技术参数，从坝料质量控制和压实质量控制两个方面较系统地对采砂扰动砂砾料筑坝质量控制进行了探讨，推荐采用现场密度桶法确定砂砾料最大、最小干密度，采用不同铺厚、不同碾压遍数和不同含水状态的碾压试验组合确定合适的碾压施工参数和碾压施工工艺，并采用大坝填筑碾压实时智能化监控系统确保碾压工艺和碾压参数能够落实。前坪水库筑坝质量控制措施和方法可供类似砂砾料筑坝工程质量控制参考使用。 |
| 英文摘要: |
| Due to the disturbance of artificial sand mining， the gravel grading of Qianping reservoir planning gravel yard is discrete， and the original design envelope， mining conditions， dam filling control standards and rolling construction parameters have changed. How to carry out the quality control of dam construction against the disturbed sand gravel material by artificial sand mining is a problem worthy of discussion. According to the relevant specifications and design technical parameters， the quality control of dam construction with disturbed sand and gravel materials is discussed systematically from two aspects of dam material quality control and compaction quality control. It is recommended to use the field density barrel method to determine the maximum and minimum dry density of sand gravel material， and use the rolling test combination with different paving thickness， different rolling times and different water content state to determine the appropriate rolling construction parameters， and the real-time intelligent monitoring system is adopted to ensure the implementation of rolling technology and rolling parameters. The quality control measures and methods of Qianping reservoir dam construction can be used as reference for similar gravel dam construction projects. |
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