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| 基于柱形孔扩张大应变理论的劈裂灌浆压力研究 | |
| 引用本文： | 武科,马明月,郝冬雪,陈榕.基于柱形孔扩张大应变理论的劈裂灌浆压力研究[J].防灾减灾工程学报,2010,30(3):293-297. |
| 作者姓名： | 武科 马明月 郝冬雪 陈榕 |
| 作者单位： | 1. 河海大学岩土力学与堤坝工程教育部重点实验室,南京,210098;山东大学岩土与结构工程研究中心,济南,250061 2. 山东科技大学,山东,青岛,266510 3. 东北电力大学建筑工程学院,吉林,吉林,132012 4. 大连理工大学土木水利学院岩土工程研究所,辽宁,大连,116024 |
| 基金项目： | 河海大学岩土力学与堤坝工程教育部实验室开放基金项目，中国博士后科学基金项目 |
| 摘 要： | 用劈裂灌浆防渗加固技术来改进坝体的稳定性,是非常有效的加固堤坝的方法。基于柱形孔扩张理论,考虑大变形分析,假定灌浆孔周围土体服从广义SMP准则,通过理论计算得到劈裂灌浆压力的解析解,进而分析了土体内摩擦角和粘聚力对灌浆压力的影响。结果表明,内摩擦角对灌浆压力的影响较小,而粘聚力的影响则较为明显。所得结论为劈裂灌浆加固工程提供了理论依据。 |
| 关 键 词： | 土坝 劈裂灌浆 柱孔扩张 大应变 |
Study on Grouting Pressure of Splitting Grouting Based on Cylindrical Expansion Considering Large Strain |
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| WU Ke,MA Ming-yue,HAO Dong-xue,CHEN Rong.Study on Grouting Pressure of Splitting Grouting Based on Cylindrical Expansion Considering Large Strain[J].Journal of Disaster Prevent and Mitigation Eng,2010,30(3):293-297. | |
| Authors: | WU Ke MA Ming-yue HAO Dong-xue CHEN Rong |
| Abstract: | Anti-seepage reinforcement technology of splitting grouting to improve the stability of dam has been an effective reinforcement method in the field of dam reinforcement.Based on cylindrical expansion considering large strain,the soil around splitting cavity was supposed to submit the extended SMP criterion.Through the theoretical calculation,the analysis solution of grouting pressure of splitting grouting was obtained.Furthermore,through parameter computing,the influence of internal friction angle and cohesion was presented on grouting pressure.It can be obtained that the influence of internal friction angle on grouting pressure was less obvious than that of cohesion strength.These results of the present theory were very valuable for the actual project. |
| Keywords: | soil dam splitting grouting reinforcement large strain |
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