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| 堤坝劈裂灌浆造孔间距改变的灌浆效果评价 | |
| 引用本文： | 武科,马明月,孙岳.堤坝劈裂灌浆造孔间距改变的灌浆效果评价[J].土木与环境工程学报,2012,34(6):104-108. |
| 作者姓名： | 武科 马明月 孙岳 |
| 作者单位： | 1. 山东大学岩土与结构工程研究中心,济南250061;河海大学岩土力学与堤坝工程教育部实验室,南京210098 2. 山东科技大学,山东青岛,266510 3. 中国石油集团工程设计有限责任公司岩土工程分公司,北京,100085 |
| 基金项目： | 中国博士后科学基金，河海大学岩土力学与堤坝工程教育部实验室开放基金 |
| 摘 要： | 堤坝劈裂灌浆技术是改善堤坝工程内在质量的一项重要技术措施，然而目前对该技术浆液在坝体内的渗透固结机理尚不明确，无法对灌浆后坝体的防渗效果进行有效地评价。为此，假定施工工艺其他条件不变的情况下，针对灌浆孔间距布设与劈裂灌浆防渗实际效果之间的相互作用规律，基于大型有限元数值计算方法，采用Mohr—CoulombHardening本构模型，通过布设不同间距灌浆孔的流固耦合计算，研究了堤坝劈裂灌浆过程中浆液所产生的孔隙水压力、堤坝应力应变等分布规律，揭示了堤坝劈裂灌浆浆液在土体内渗流固结机理，探讨了其对坝体稳定性的影响，评价了灌浆效果。 |
| 关 键 词： | 堤坝 劈裂灌浆 数值模拟 流固耦合 |
Evaluation on Effects of the Change of Hole-boring Distance During Splitting Grouting to Earth Dam |
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| WU Ke,MA Mingyue and SUN Yue.Evaluation on Effects of the Change of Hole-boring Distance During Splitting Grouting to Earth Dam[J].Journal of Civil and Environmental Engineering,2012,34(6):104-108. | |
| Authors: | WU Ke MA Mingyue and SUN Yue |
| Affiliation: | 1. Geotechnical and Structural Engineering Research Institute, Shandong University, Jinan, Shandong 250061, P. R. China; 2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, P. R. China; 3. Shandong University of Science and Technology, Qingdao 266510, Shandong, P. R. China; 4. China Petroleum Engineering Co. Ltd Geotechnical Engineering Company, Beijing 100085, P. R. China) |
| Abstract: | The technology of splitting grouting for earth dam is one of the important technical measures to improve the quality of dam. However, the consolidation mechanism of slurry in the dam is not clear, which can not evaluate the effects of seepage control of the dam after grouting. Therefore, assuming that the construction technology does not change and with the consideration of interaction between the layout of hole-boring distance and the effects of seepage control, the Mohr-Coulomb Hardening model and fluid-solid coupling method were used to analyze the rule of pore pressure, stress and strain in the dam during splitting grouting based on the finite element simulation. The consolidation mechanics was discussed and stability of the dam was evaluated. |
| Keywords: | earth dam splitting grouting numerical simulation fluid-solid coupling |
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