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A platform for research: civil engineering, architecture and urbanism
Earth and rockfill dam material vibration compaction quality control method based on rolling stress
The invention relates to the field of earth and rockfill dam material compaction quality control, and particularly discloses an earth and rockfill dam material vibration compaction quality control method based on rolling stress. In the dam filling rolling compaction test stage, a vibration rolling compaction machine is used for rolling compaction on the laid test strips, real-time data of rolling compaction soil stress are collected, and a standard soil stress control value is obtained according to the relation between the real-time data and the dam material dry density; in the formal filling period of the dam, according to the rolling three-dimensional finite element analysis model, the stress value of the measuring point is measured, and when the stress value reaches the compaction stress control value, it is proved that the compaction standard is reached. The earth and rockfill dam material vibration compaction quality control method based on the rolling stress is provided through analysis and verification, a relational expression between the rolling stress and the soil body dry density is established, synchronous simulation of the compaction process is conducted through Midas, and the compaction quality of the dam material in the earth and rockfill dam material vibration compaction process is controlled in real time.
本发明涉及土石坝料压实质量控制领域，具体公开了基于碾压应力的土石坝料振动压实质量控制方法。在大坝填筑碾压试验阶段，使用振动碾压机在铺设的试验条带上碾压，采集碾压土应力的实时数据，根据其与坝料干密度的关系得到标准的土应力控制值；在大坝正式填筑期，根据碾压三维有限元分析模型，测定测点的应力数值，达到压实应力控制值时则证明已达到压实标准。本发明通过分析与验证提出基于碾压应力的土石坝料振动压实质量控制方法，建立了碾压应力与土体干密度的关系式，并通过Midas进行压实过程同步模拟，对土石坝料振动压实过程中坝料的压实质量进行实时控制。
Earth and rockfill dam material vibration compaction quality control method based on rolling stress
The invention relates to the field of earth and rockfill dam material compaction quality control, and particularly discloses an earth and rockfill dam material vibration compaction quality control method based on rolling stress. In the dam filling rolling compaction test stage, a vibration rolling compaction machine is used for rolling compaction on the laid test strips, real-time data of rolling compaction soil stress are collected, and a standard soil stress control value is obtained according to the relation between the real-time data and the dam material dry density; in the formal filling period of the dam, according to the rolling three-dimensional finite element analysis model, the stress value of the measuring point is measured, and when the stress value reaches the compaction stress control value, it is proved that the compaction standard is reached. The earth and rockfill dam material vibration compaction quality control method based on the rolling stress is provided through analysis and verification, a relational expression between the rolling stress and the soil body dry density is established, synchronous simulation of the compaction process is conducted through Midas, and the compaction quality of the dam material in the earth and rockfill dam material vibration compaction process is controlled in real time.
本发明涉及土石坝料压实质量控制领域，具体公开了基于碾压应力的土石坝料振动压实质量控制方法。在大坝填筑碾压试验阶段，使用振动碾压机在铺设的试验条带上碾压，采集碾压土应力的实时数据，根据其与坝料干密度的关系得到标准的土应力控制值；在大坝正式填筑期，根据碾压三维有限元分析模型，测定测点的应力数值，达到压实应力控制值时则证明已达到压实标准。本发明通过分析与验证提出基于碾压应力的土石坝料振动压实质量控制方法，建立了碾压应力与土体干密度的关系式，并通过Midas进行压实过程同步模拟，对土石坝料振动压实过程中坝料的压实质量进行实时控制。
Earth and rockfill dam material vibration compaction quality control method based on rolling stress
基于碾压应力的土石坝料振动压实质量控制方法
HUA TIANBO (author) / HE SUFEI (author) / HUO MIAO (author) / XIAO SHENGCAI (author) / LIU XIN (author) / LI XINYU (author) / FANG YU (author) / HOU JIAYI (author)
2024-08-02
Patent
Electronic Resource
Chinese
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