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为研究砂卵砾石地基混凝土防渗墙受力变形性态,进行了包含底部柔性接触和刚性接触两种情况的防渗墙室内模型试验,并对两种情况下的模型进行了有限元计算。结果表明,墙底柔性接触时防渗墙应力明显小于墙底刚性接触时的防渗墙应力,其模型顶面沉降则大于墙底刚性接触情况;有限元计算的防渗墙应力及模型顶面沉降规律和试验值规律相似,量值略有差异,说明现有的有限元计算方法能反映防渗墙的应力变形特点,具有一定的合理性,但仍需进一步改进。
In order to study the deformation behavior of concrete impervious wall with sand-gravel foundation, the impermeable wall indoor model test including two cases of bottom flexible contact and rigid contact was carried out. The two models were analyzed by finite element method. The results show that the stress of anti-seepage wall at the time of flexible contact of wall is obviously less than the anti-seepage stress of rigid contact at the bottom of the wall, the settlement of top of the model is greater than the rigid contact of the wall; The law of settlement and the law of the test value are similar, and the values are slightly different. It shows that the existing finite element method can reflect the characteristics of stress and deformation of the cut-off wall. It is reasonable but still needs further improvement.