摘要
运用弹塑性理论讨论孔壁破裂问题。首先利用弹性理论对土坝钻孔周围应力场进行分析,得出孔壁破裂的力学解;然后利用有限元程序进行了弹、塑性应力分析;得出了孔壁破裂和裂缝发展的主要影响因素,尤其分析了浆液的渗透和扩展规律。对灌浆施工过程中的一些现象作了分析,得到了一些有价值的结论。为土坝劈裂灌浆的设计、施工提供一种理论依据。
The crack of the aperture is studied by applying the theory of elasticity and plasticity. Firstly, the elastic theory is used to analyze the stress field around the grouting hole, and the mechanical solutions are obtained. Secondly, the finite element method is employed for elastic-plastic stress analysis. The key factors of the aperture＇s cracking and expanding are drawn and the laws of seepage are analyzed specially. Based on the analysis of the phenomena in grouting construction, the available results are put forward. All these are useful for the design and construction of the split grouting in earth dam.
出处
《水利与建筑工程学报》
2006年第4期28-30,共3页
Journal of Water Resources and Architectural Engineering
基金
山东科技大学科学发展基金资助(05s001)
关键词
劈裂灌浆
渗透
水平应力场
数值分析
split grouting
seepage
plane stress field
numerical analysis
