Evaluation on Effects of the Change of Hole-boring Distance During Splitting Grouting to Earth Dam

WU Ke; MA Mingyue; SUN Yue

doi:10.3969/j.issn.1674-4764.2012.06.017

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Evaluation on Effects of the Change of Hole-boring Distance During Splitting Grouting to Earth Dam

更新时间：2023-11-28

- Evaluation on Effects of the Change of Hole-boring Distance During Splitting Grouting to Earth Dam
- Journal of Civil and Environmental Engineering Vol. 34, Issue 6, Pages: 104-108(2012)
- 作者机构：
  
  1. 山东大学岩土与结构工程研究中心,济南,250061
  2. 河海大学岩土力学与堤坝工程教育部实验室,南京,210098
  3. 山东科技大学,山东,青岛,266510
  4. 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
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1674-4764.2012.06.017
  CLC：
- Published：2012
- 稿件说明：
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WU Ke, MA Mingyue, 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.
DOI：

WU Ke, MA Mingyue, 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. DOI： 10.3969/j.issn.1674-4764.2012.06.017.

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-Coulomb Hardening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。

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.

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